LEYBOLD GRAPHIX ONE Instruction Manual
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Vacuum Gauge Controller
Instruction Manual GA300550402_002_C1
GA300550402_002_C1 – 10/2016
3
0.
Table of Contents
0.
Table of Contents
3
0.1
List of Figures
8
0.2
List of Tables
10
1.
Legal Notices
12
1.1
Validity
12
1.1.1
Part Numbers
12
1.1.2
Label
12
1.2
Conforming Utilisation
12
1.3
Instrument Versions
13
1.4
Assuming of Responsibility and Warranty
13
1.5
Shipping Damage
13
2.
Safety
14
2.1
General Information
14
2.2
Key to the Symbols
14
2.3
Basic Safety Information
14
3.
General Description of the Instrument
15
3.1
GRAPHIX controller
15
3.2
Suitable Sensors
15
4.
Technical Data
16
4.1
General Data
16
4.1.1
Mechanical Data
16
4.1.2
Default Parameters (factory defaults)
17
4.1.3
Ambient
18
4.1.4
Standards
18
4.2
Mains Power Connection
18
4.3
Measurement Channels
19
4.3.1
Sensor Powering
19
4.3.2
Measurement Technology
20
4.4
TFT Touch Display
20
4.5
Switching Functions / Relay Outputs
20
4.5.1
Relay Switching Functions
20
4.5.2
Error Signal Relay
20
GA300550402_002_C1 – 10/2016
4.6
Outputs and Inputs
21
4.6.1
Analogue Output
21
4.6.2
Chart Recorder Output
21
4.6.3
External Control
21
4.6.4
Serial Interface
21
4.6.4.1
RS232
21
4.6.4.2
RS485
22
4.6.5
USB-A Interface (front side)
22
5.
Installation
23
5.1
Supplied Equipment
23
5.2
Mechanical Installation
23
5.2.1
Rack Installation
24
5.2.2
Front Panel Installation
24
5.2.3
Benchtop Instrument
25
5.3
Connections
26
5.3.1
Rear of the Instrument
26
5.3.2
Mains Power Connection
26
5.3.3
Earthing
27
5.3.4
Measurement Channel (CH1 … CH3)
27
5.3.5
Relay Output
28
5.3.6
Analogue Output, Chart Recorder Output and External Control (Control)
29
5.3.7
Interfaces RS232/RS485 (RS232/RS485)
29
6.
Operation
30
6.1
Front Panel
30
6.1.1
USB-A Interface
30
6.1.2
Display
30
6.1.2.1
Display Mode – Normal
31
6.1.2.2
Display Mode – Chart
33
6.1.2.3
Display Mode – Big
33
6.1.2.4
Display Mode Speedo
34
6.1.2.5
Display Mode Leak Test
34
6.1.3
Controls
35
6.1.4
Symbols
36
6.1.4.1
Symbols for the Controls
36
6.1.4.2
Symbols for the Language Selection
37
6.1.4.3
Status and Warning Symbols
38
6.2
Switching ON and OFF
39
6.2.1
Switching ON
39
6.2.2
Switching OFF
39
6.3
Operating Modes
39
6.4
Measurement Mode
40
6.4.1
Description
40
6.4.2
Button Functions
40
6.4.2.1
Invoking the Help Function
40
6.4.2.2
Changing Display Mode
41
6.4.2.3
Switching the High Vacuum Measurement Circuit On
42
6.4.2.4
Switching the High Vacuum Measurement Circuit Off
42
6.4.2.5
Switching the Emission On
43
6.4.2.6
Switching the Emission Off
43
6.4.2.7
Switching the Degas Function On
44
6.4.2.8
Switching the Degas Function Off
44
6.4.2.9
Starting the Leak Test Function
45
6.4.2.10
Stopping the Leak Test Function
45
GA300550402_002_C1 – 10/2016
5
6.5
Parameter and Function Mode
46
6.5.1
Operating Concept
46
6.5.2
Parameter Groups
48
7.
Parameters
53
7.1
Channel 1 … 3
53
7.1.1
Sensor Type
56
7.1.1.1
Specifying the Sensor Type for THERMOVAC Sensors
57
7.1.1.2
Specifying the Sensor Type for PENNINGVAC Sensors
61
7.1.1.3
Specifying the Sensor Type for CERAVAC Sensors
65
7.1.2
Sensor Detection (Detection)
67
7.1.3
Sensor Name
67
7.1.4
Measured Values Filter (Filter)
68
7.1.5
Gas Typ Correction (Gas Type)
69
7.1.6
Gas Type Correction Factor (Correction Factor)
69
7.1.7
Emission Switching On and Switching Off Type (Emission)
69
7.1.8
Filament Selection (Filament)
70
7.1.9
Offset On / Off
70
7.1.10
Offset Value
70
7.1.11
Take Current Pressure
70
7.1.12
Zero Alignment (Zero Adjust)
71
7.1.13
Sensor Switch-on Type (Sensor On)
72
7.1.14
Sensor Switch-on Value (T-On)
72
7.1.15
Sensor Switch-off Type (Sensor Off)
73
7.1.16
Sensor Switch-off Value (T-Off)
73
7.1.17
Entering the Characteristics for Further Sensors
73
7.1.17.1
Curve Type
74
7.1.17.2
Characteristic Curve (U-Start, p-Start, U-End, p-End, F-Start, F-End)
74
7.2
Setpoints
75
7.2.1
Basic Terms
75
7.2.2
Configuring the Switching Functions
76
7.2.3
Adjustment Range
79
7.3
System
81
7.3.1
Displayed Unit of Measurement (Unit)
81
7.3.2
Key Tone
82
7.3.3
Error Relay
82
7.3.4
Baud Rate (Data Rate)
82
7.3.5
Com Port
83
7.3.6
Address
83
7.3.7
Clock (Time)
83
7.3.8
Date
83
7.3.9
System Information
83
7.4
Display
84
7.4.1
Display Mode
84
7.4.2
Resolution
84
7.4.3
Brightness
84
7.5
Logging
85
7.5.1
Interval (s)
85
7.5.2
File Size (h)
85
7.5.3
Enable / Disable Logging
85
7.6
Recorder
86
7.6.1
Analog Mode
86
7.6.2
Channel
91
GA300550402_002_C1 – 10/2016
7.7
Chart
92
7.7.1
Interval (s)
92
7.7.2
Channel 1
92
7.7.3
Channel 2
92
7.7.4
Channel 3
93
7.8
Leak Test
94
7.8.1
Interval (min)
95
7.8.2
Volume (l)
95
7.8.3
Channel
95
7.9
Menu Language (Language)
96
8.
Computer Interface
97
8.1
Basic Information
97
8.1.1
Connection
97
8.1.2
Nomenclature
97
8.2
Communication
98
8.2.1
Protocol
98
8.2.2
General String Structure
98
8.2.2.1
Send String Structure (as seen from the Master)
98
8.2.2.2
Receiving String Structure (as seen from the Master)
99
8.2.2.3
Error Number (Receiving String)
100
8.2.2.4
Calculation of the Checksum
100
8.3
The Command Set (Mnemonics)
101
8.3.1
Parameter Group
101
8.3.2
Parameter Number
101
9.
Maintenance and Servicing
108
9.1
Maintenance
108
9.1.1
Cleaning
108
9.2
Configuration
108
9.2.1
Save Data
108
9.2.2
Restore Data
109
9.2.3
Factory Setup
109
9.3
Update Function
110
9.3.1
Preparations
110
9.3.2
Updating
110
10.
Troubleshooting
111
10.1
Indication of Errors
111
10.1.1
Sensor Errors
111
10.1.2
System Errors
112
10.2
Error Log
112
10.3
Help in Case of Malfunctions
113
10.4
Replacing the Built-in Fuses
113
10.5
Repair
113
GA300550402_002_C1 – 10/2016
7
11.
Storing and Waste Disposal
114
11.1
Packaging
114
11.2
Shelving
114
11.3
Waste Disposal
114
Annex 1 -
EU Declaration of Conformity
118
Annex 2 -
Declaration of Contamination
119
GA300550402_002_C1 – 10/2016
0.1
List of Figures
Figure 1 – Label (example)
12
Figure 2 – Dimensions of the GRAPHIX controller (in mm)
16
Figure 3 – Rack installation
24
Figure 4 – Front panel cut-out (in mm)
24
Figure 5 – Preparing the top side of the instrument for utilisation as a benchtop unit
25
Figure 6 – Preparing the bottom side of the instrument for utilisation as a benchtop unit
25
Figure 7 – Rear of the instrument
26
Figure 8 – Sensor connection (modular socket, 8-way)
27
Figure 9 – Sensor connection (SUB-D socket, 15-way)
27
Figure 10 – Connection socket for relay output (SUB-D, 25-way)
28
Figure 11 – Connection plug for analogue output, chart recorder output
and external control (SUB-D, 15-way)
29
Figure 12 – Connection socket for interface (SUB-D, 9-way)
29
Figure 13 – Front panel
30
Figure 14 – Display mode Normal
31
Figure 15 – Display field for a measurement channel
31
Figure 16 – Display mode Chart
33
Figure 17 – Display mode Big
33
Figure 18 – Display mode Speedo
34
Figure 19 – Display mode Leak Test
34
Figure 20 – Main menu 1/2
35
Figure 21 – Main menu 2/2
35
Figure 22 – Channel menu (example)
35
Figure 23 – Invoking the Help function
40
Figure 24 – Changing display mode
41
Figure 25 – Switching the high vacuum measurement circuit on
42
Figure 26 – Switching the high vacuum measurement circuit off
42
Figure 27 – Switching the emission on
43
Figure 28 – Switching the emission off
43
Figure 29 – Switching the degas function On
44
Figure 30 – Switching the degas function Off
44
Figure 31 – Starting Leak Test
45
Figure 32 – Stopping Leak Test
45
Figure 33 – Parameter groups in the main menu
46
Figure 34 – Parameters of a parameter group
46
Figure 35 – Values entry field
47
Figure 36 – Text entry field
47
Figure 37 – Selection list
47
Figure 38 – Display of sensor type TTR?
57
Figure 39 – Opening the main menu
57
Figure 40 – Selection of parameter group Channel
57
Figure 41 – Selection of parameter Sensor Type
58
Figure 42 – Selection of the desired sensor
58
Figure 43 – Display of selected sensor type
58
Figure 44 – Display of sensor type TTR10X
59
Figure 45 – Opening the main menu
59
Figure 46 – Selection of the parameter group Channel
59
Figure 47 – Selection of parameter Sensor Type
60
Figure 48 – Selection of desired sensor
60
Figure 49 – Display of selected sensor type
60
Figure 50 – Display of sensor type PTR?
61
Figure 51 – Opening the main menu
61
Figure 52 – Selection of parameter group Channel
61
Figure 53 – Selection of parameter Sensor Type
62
Figure 54 – Selection of the desired sensor
62
Figure 55 – Display of selected sensor type
62
Figure 56 – Display of sensor type PTR90?
63
Figure 57 – Opening the main menu
63
Figure 58 – Selection of the parameter group Channel
63
Figure 59 – Selection of parameter Sensor Type
64
Figure 60 – Selection of desired sensor
64
GA300550402_002_C1 – 10/2016
9
Figure 61 – Display of selected sensor type
64
Figure 62 – Display of sensor type CTR?
65
Figure 63 – Opening the main menu
65
Figure 64 – Selection of parameter group Channel
65
Figure 65 – Selection of parameter Sensor Type
66
Figure 66 – Selection of desired sensor
66
Figure 67 – Display of selected sensor type
66
Figure 68 – Measured values filter Fast (example)
68
Figure 69 – Measured values filter Medium (example)
68
Figure 70 – Measured values filter Slow (example)
68
Figure 71 – Configuration for the specific characteristics of further sensors
74
Figure 72 – Response of the switching function in case of pressure changes
75
Figure 73 – Opening the main menu
76
Figure 74 – Selection of parameter group Setpoints
76
Figure 75 – Selection of the parameter Channel
76
Figure 76 – Selection of the desired channel
77
Figure 77 – Selection for parameter SP-On / SP-Off
77
Figure 78 – Selection of the switching threshold value
78
Figure 79 – Display switching threshold
78
Figure 80 – Sample file of recorded data
85
Figure 81 – Error log
113
GA300550402_002_C1 – 10/2016
0.2
List of Tables
Table 1 – Part numbers
12
Table 2 – Suitable sensors
15
Table 3 – Default parameters (factory defaults)
17
Table 4 – Supplied equipment
23
Table 5 – Symbols for the controls
37
Table 6 – Symbols for language selection
37
Table 7 – Status indicating and warning symbols
38
Table 8 – Status messages in the measured values display
40
Table 9 – Parameter groups and corresponding parameters
52
Table 10 – Available sensor parameters for THERMOVAC sensors
53
Table 11 – Available sensor parameters for THERMOVAC sensors (combination sensors)
53
Table 12 – Available sensor parameters for IONIVAC sensors (combination sensors)
54
Table 13 – Available sensor parameters for PENNINGVAC sensors
54
Table 14 – Available sensor parameters for PENNINGVAC sensors (combination sensors)
54
Table 15 – Available sensor parameters for CERAVAC sensors
55
Table 16 – Available sensor parameters for DU sensors
55
Table 17 – Available sensor parameters for further sensors
55
Table 18 – Values for the parameter Emission
69
Table 19 – Values for the parameter Filament
70
Table 20 – Values for the parameter Type of Characteristic
74
Table 21 – Adjustment range for the threshold value of THERMOVAC sensors
79
Table 22 – Adjustment range for the threshold value of THERMOVAC sensors (combination sensors)
79
Table 23 – Adjustment range for the threshold value of IONIVAC sensors (combination sensors)
79
Table 24 – Adjustment range for the threshold value of PENNINGVAC sensors
80
Table 25 – Adjustment range for the threshold value of PENNINGVAC sensors (combination sensors)
80
Table 26 – Adjustment range for the threshold value of CERAVAC sensors
80
Table 27 – Adjustment range for the threshold value of DU sensors
81
Table 28 – Adjustment range for the threshold value of further sensors
81
Table 29 – Values for the parameter Unit
81
Table 30 – Values for the parameter Key Tone
82
Table 31 – Values for the parameter Error Relay
82
Table 32 – Values for the parameter Data Rate
82
Table 33 – Values for the parameter Com Port
83
Table 34 – Values for the parameter Display mode
84
Table 35 – Values for the parameter Display digits
84
Table 36 – Values for the parameter Brightness
84
Table 37 – Chart recorder output – Calculation formula for the parameter Log
86
Table 38 – Chart recorder output – Calculation formula for the parameter Log A
86
Table 39 – Chart recorder output – Calculation formula for the parameter Log -6
87
Table 40 – Chart recorder output – Calculation formula for the parameter Log -3
87
Table 41 – Chart recorder output – Calculation formula for the parameter Log +0
87
Table 42 – Chart recorder output – Calculation formula for the parameter Log +3
87
Table 43 – Chart recorder output – Calculation formula for the parameter LogC1
87
Table 44 – Chart recorder output – Calculation formula for the parameter Lin -10
88
Table 45 – Chart recorder output – Calculation formula for the parameter Lin -9
88
Table 46 – Chart recorder output – Calculation formula for the parameter Lin -8
88
Table 47 – Chart recorder output – Calculation formula for the parameter Lin -7
88
Table 48 – Chart recorder output – Calculation formula for the parameter Lin -6
89
Table 49 – Chart recorder output – Calculation formula for the parameter Lin -5
89
Table 50 – Chart recorder output – Calculation formula for the parameter Lin -4
89
Table 51 – Chart recorder output – Calculation formula for the parameter Lin -3
89
Table 52 – Chart recorder output – Calculation formula for the parameter Lin -2
89
Table 53 – Chart recorder output – Calculation formula for the parameter Lin -1
89
Table 54 – Chart recorder output – Calculation formula for the parameter Lin +0
90
Table 55 – Chart recorder output – Calculation formula for the parameter Lin +1
90
Table 56 – Chart recorder output – Calculation formula for the parameter Lin +2
90
Table 57 – Chart recorder output – Calculation formula for the parameter Lin +3
90
Table 58 – Chart recorder output – Calculation formula for the parameter IM221
90
Table 59 – Chart recorder output – Calculation formula for the parameter LogC4
91
Table 60 – Values for the parameter Channel
91
Table 61 – Overview for display duration [hh:mm:ss]
92
GA300550402_002_C1 – 10/2016
11
Table 62 – Values for the parameter Channel 1
92
Table 63 – Values for the parameter Channel 2
92
Table 64 – Values for the parameter Channel 3
93
Table 65 – Values for the parameter Channel
95
Table 66 – Values for the parameter Language
96
Table 67 – Computer interface terms
97
Table 68 – Control characters of the computer interface
97
Table 69 – Error numbers of receiving string
100
Table 70 – Parameter groups
101
Table 71 – Parameter numbers for parameter groups 1 … 3 (Parameter Channel 1 … 3)
103
Table 72 – Parameter numbers for parameter group 4 (Setpoint parameters)
105
Table 73 – Parameter numbers for parameter group 5 (System parameters)
107
Table 74 – Sensor errors
111
Table 75 – System errors
112
GA300550402_002_C1 – 10/2016
1.
Legal Notices
1.1
Validity
1.1.1
Part Numbers
This document applies to the following products:
Part Number
Product
Version
Serial
Number
230680V01
GRAPHIX ONE controller
Single-channel measuring instrument for active vacuum sensors
1.11.00
et seq.
1 et seq.
230681V01
GRAPHIX TWO controller
Two-channel measuring instrument for active vacuum sensors
1.11.00
et seq.
1 et seq.
230682V01
GRAPHIX THREE controller
Three-channel measuring instrument for active vacuum sensors
1.11.00
et seq.
1 et seq.
Table 1 – Part numbers
1.1.2
Label
A label is located on the left-hand side of the instrument. When communicating with Leybold
GmbH, the information given on this label is important. Therefore, enter this information
here:
Figure 1 – Label (example)
1.2
Conforming Utilisation
The GRAPHIX controller is a display and operating unit with a graphic user interface for
sensors with an analogue or digital interface of the company Leybold GmbH or from other
manufacturers.
Depending on the version, the unit offers one or several channels, and it is used in
combination with the sensors from the series THERMOVAC, IONIVAC, PENNINGVAC and
CERAVAC as well as DU sensors for the measurement of pressures above and below
atmospheric pressures (vacuum).
It is also possible to use sensors made by other manufacturers by entering a variable
analogue logarithmic or analogue linear characteristic ranging from 0 – 10 Volt.
Operate all connected sensors in agreement with the information given in the corresponding
Operating Instructions.
NOTICE:
Based on the technical data please check first whether your measuring
instrument is suited to your kind of application.
GA300550402_002_C1 – 10/2016
13
1.3
Instrument Versions
The GRAPHIX controller is available in three different versions:
GRAPHIX ONE
(single-channel measuring instrument)
GRAPHIX TWO
(two-channel measuring instrument)
GRAPHIX THREE
(three-channel measuring instrument)
The three versions differ as to the following:
Number of measurement channels
Power consumption
Weight
Chapter 4 -Technical Data, page 16
Described in these Operating Instructions are all three versions of the GRAPHIX controller.
1.4
Assuming of Responsibility and Warranty
Leybold GmbH will not assume any responsibility or warranty in case the operator or third
persons
do not observe the information given in this document.
do not use the product as intended.
modify the product in any way (conversions, repair work etc).
operate the product with accessories not listed in the corresponding product
documentation.
Subject to technical alterations without prior notice. The figures are not binding.
1.5
Shipping Damage
Examine the shipping package as to any external damage.
In case any damage is determined, file a damage report to the forwarding agent and
the insurer.
Retain the packaging material since damages can only be claimed when returning the
instrument in the original packaging of the manufacturer.
Examine the delivery to ensure that it is complete.
Examine the instrument as to any visually apparent damage.
DANGER: Damaged product.
Commissioning or operating a damaged product is dangerous to life.
GA300550402_002_C1 – 10/2016
2.
Safety
2.1
General Information
The GRAPHIX is supplied ready for immediate operation. Even so, we recommend that you
carefully read these Operating Instructions so as to ensure optimum working conditions right
from the start.
These Operating Instructions contain important information as to understanding, placing,
commissioning, operating and troubleshooting the GRAPHIX controller.
2.2
Key to the Symbols
Important instructions relating to technical safety and safe operation are emphasised by
symbols.
DANGER or WARNING:
Information designed to prevent any kind of injury to persons.
DANGER:
Information designed to prevent injury to persons and damage to equipment
in connection with electricity.
NOTICE:
General information pointing to further information, respectively reference
sections.
2.3
Basic Safety Information
During all work like installation, maintenance and repair activities, comply with the
pertinent safety regulations.
DANGER: Mains Voltage
Coming into contact with components at mains voltage level within the
instrument can be dangerous to life when inserting objects or allowing liquids
to enter the instrument.
WARNING: Improper usage.
Improper usage can damage the instrument. Use the instrument only in
agreement with the specifications issued by the manufacturer.
WARNING: Wrong Connection and Operating Data.
Wrong connection and operating data can damage the instrument. Comply
with all specified connection and operating data.
GA300550402_002_C1 – 10/2016
15
3.
General Description of the Instrument
3.1
GRAPHIX controller
The GRAPHIX controller is a display and operating unit with a graphic user interface for
sensors with an analogue or digital interface of the company Leybold GmbH or from other
manufacturers. Depending on the version, the unit offers one or several channels, and it is
used in combination with the sensors from the series THERMOVAC, IONIVAC,
PENNINGVAC and CERAVAC as well as DU sensors for the measurement of pressures
above and below atmospheric pressures (vacuum). It is also possible to use sensors made
by other manufacturers by entering a variable analogue logarithmic or analogue linear
characteristic ranging from 0 – 10 Volt. Operate all connected sensors in agreement with
the information given in the corresponding Operating Instructions.
3.2
Suitable Sensors
The following sensors can be operated with the GRAPHIX controller:
Sensor
Typ
Anzeige
THERMOVAC
TTR81N
TTR90 / TTR91 / TTR91N
TTR96S / TTR96SN
TTR211 / TTR216S
TTR911 / TTR911N
TTR916 / TTR916N
TTR… (TTR?)
TTR911N (RS232)
TTR911N_D
THERMOVAC
TTR100 / TTR100S2
TTR101 / TTR101N
TTR101S2 / TTR101S2N
TTR… (TTR10X)
TTR101N (RS232)
TTR101N_D
TTR200N (RS232)
TTR200N
IONIVAC
ITR90 / ITR90N
ITR200S / ITR200SN
ITR200SL / ITR200SLN
ITR…
PENNINGVAC
PTR81N
PTR225 / PTR225N
PTR225S / PTR225SN
PTR237 / PTR237N
PTR… (PTR?)
PTR225N (RS232)
PTR225N_D
PENNINGVAC
PTR82N
PTR90 / PTR90N
PTR… (PTR90?)
PTR90N (RS232)
PTR90N_D
PTR200N (RS232)
PTR200N
CERAVAC
CTR90 / CTR91
CTR100 / CTR100N
CTR101 / CTR101N
CTR… (CTR?)
DU sensor
DU200 / DU201
DU2000 / DU2001
DU…
DU relative pressure sensor
DU2001 rel.
DUrel
Further sensors
Corresponding to characteristics
CUSTOM
Table 2 – Suitable sensors
GA300550402_002_C1 – 10/2016
4.
Technical Data
4.1
General Data
4.1.1
Mechanical Data
Dimensions:
Width: 106.4 mm (1/4 19“)
Height: 128.4 mm (3 HU)
Depth: 174.0 mm
Mass:
≤ 1.7 kg
Installation depth:
≤ 230 mm (including connected plug)
Installation:
Rack installation
Front panel installation
Benchtop instrument
Figure 2 – Dimensions of the GRAPHIX controller (in mm)
GA300550402_002_C1 – 10/2016
17
4.1.2
Default Parameters (factory defaults)
Parameter Group
Parameter
Selection
Channel 1 … 3
Sensor Type
TTR?
TTR10X
PTR?
PTR90?
CTR?
Detection
Auto
Sensor Name
no value
Filter
Slow
Gas Type
N2
Correction Factor
1.00
Emission
Auto
Filament
Auto
Offset On / Off
Off
Offset Value
0.000
Sensor On
Manual
Sensor Off
Manual
Setpoints
Channel
Off
System
Unit
mbar
Key Sound
Off
Error Relay
All
Data Rate
38400
Com Port
RS232
Display
Display Mode
Normal
Resolution
Standard
Brightness
Medium
Logging
Interval (s)
1
File Size (h)
24
Recorder
Analog Mode
Log
Channel
1
Chart
Interval (s)
1
Channel 1
On
Channel 2
On
Channel 3
On
Leak Test
Interval (min)
10
Volume (l)
1.0
Channel
1
Language
Language
EN (English)
Table 3 – Default parameters (factory defaults)
GA300550402_002_C1 – 10/2016
4.1.3
Ambient
Temperature:
Storage:
-20 – +60 °C
Operating: +5 – +45 °C (sea level)
+5 – +30 °C (2000 m above sea level)
Relative atmospheric humidity: 80 % max. (up to 30 °C)
decreasing to 50 % max. (over 40 °C)
Use:
indoors (altitude 2000 m max. above sea level)
Ingress protection type:
IP20
Contamination level:
2
4.1.4
Standards
Conformity with respect to Low Voltage Directive 2014/35/EU
Conformity with respect to EMC Directive 2014/30/EU
Conformity with respect to RoHS Directive 2011/65/EU
International/national standards as well as specifications:
DIN EN 61010-1 (2011)
(Safety requirements for electrical equipment for measurement, control and
laboratory use).
DIN EN 61326-1 (2013)
(Electrical equipment for measurement, control and laboratory use – EMC
requirements. Industrial interference immunity; electromagnetic emissions household
sector Class B).
4.2
Mains Power Connection
Voltage:
100 – 240 VAC
Frequency:
50/60 Hz
Fuses:
2 x T1.6A H
Power consumption:
GRAPHIX ONE
< 50 W
GRAPHIX TWO
< 70 W
GRAPHIX THREE
< 100 W
Current consumption:
1.4 – 0.7 A max.
Overvoltage category:
II
Protection class:
1
Connection:
Cold-device plug IEC 320 C14
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4.3
Measurement Channels
Number:
GRAPHIX ONE
1
GRAPHIX TWO
2
GRAPHIX THREE
3
Connection:
analogue sensors:
RJ45 (FCC 68)
IONIVAC, CERAVAC:
SUB-D, 15-way, socket
Suitable sensors:
THERMOVAC
TTR81N
TTR90 / TTR91 / TTR91N
TTR96S / TTR96SN
TTR211 / TTR216S
TTR911 / TTR911N
TTR911N (RS232)
TTR916 / TTR916N
THERMOVAC
TTR100 / TTR100S2
TTR101 / TTR101N
TTR101S2 / TTR101S2N
TTR101N (RS232)
TTR200N (RS232)
IONIVAC
ITR90 / ITR90N
ITR200S / ITR200SN
ITR200SL / ITR200SLN
PENNINGVAC
PTR81N
PTR225 / PTR225N
PTR225S / PTR225SN
PTR225N (RS232)
PTR237 / PTR237N
PENNINGVAC
PTR82N
PTR90 / PTR90N
PTR90N (RS232)
PTR200N (RS232)
CERAVAC
CTR90 / CTR91
CTR100 / CTR100N
CTR101 / CTR101N
DU sensor
DU200 / DU201
DU2000 / DU2001
DU relative
pressure sensor
DU2001 rel.
further sensors with
0 – 10 V characteristic
CUSTOM
4.3.1
Sensor Powering
Voltage:
+24 VDC ±5 %
Current:
500 mA (1000 mA briefly)
Fusing:
1000 mA, self-resetting after switching the instrument off
or pulling the sensor plug
Power feeding complies with the requirements of a safety extra-low voltage (SELV-E in
accordance with EN 61010).
GA300550402_002_C1 – 10/2016
4.3.2
Measurement Technology
Measurement ranges:
Sensor dependent
Measurement error:
Gain error
≤ 0.02 % FS
Offset error ≤ 0.05 % FS
Measurement rate:
Analogue
≥ 15 s-1
Digital
≥ 50 s-1
Display rate:
4 s-1
Filter time constant:
Fast, Medium, Slow
Unit of measurement:
mbar, Torr, Pa, psi, Micron
Correction options:
Zero alignment for linear sensors
correction factor 0.10 – 10.0 for logarithmic sensors
A/D converter resolution:
> 16 bit
4.4
TFT Touch Display
Implementation:
3.5-in. TFT display with resistive touchscreen
(glove operation is possible)
Resolution:
320 x 240 pixels
4.5
Switching Functions / Relay Outputs
4.5.1
Relay Switching Functions
Number:
6
Assignment:
freely assignable
Response time:
< 50 ms
Adjustment range:
Sensor dependent
Hysteresis:
Adjustable ≥ 10 % of measured value of for sensors with
a logarithmic characteristic;
0.1 % FS for sensors with a linear characteristic
Contact type:
Changeover contact, floating
Load (resistive)
Switched current:
1 A max.
Switched voltage: 30 VAC / 30 VDC max.
Service life:
Mechanical: 5·106 switching cycles
Electrical:
105 switching cycles at maximum load
Connection:
SUB-D, 25-way, plug
4.5.2
Error Signal Relay
Number:
1
Response time:
< 50 ms
Contact type:
Changeover contact, floating
Load (resistive):
Switched current:
1 A max.
Switched voltage: 30 VAC / 30 VDC max.
Service life:
Mechanical:
5·106 switching cycles
Electrical:
105 switching cycles at max. load
Connection:
SUB-D, 25-way, plug
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4.6
Outputs and Inputs
4.6.1
Analogue Output
Number:
1 per measurement channel
Voltage range:
0 – 10 VDC (limit values 0 – 10.5 VDC)
Output voltage in case of error: 10.3 – 10.5 VDC
Deviation of displayed value:
± 0.2 %
Internal resistance:
100 Ohm
Characteristic curve:
Sensor dependent
Response time:
100 ms approx.
Resolution:
12 bit
Connection:
SUB-D, 9-way, plug (jointly used with external
control connection)
4.6.2
Chart Recorder Output
Number:
1
Voltage range:
0 – 10 VDC (limit values 0 – 10.5 VDC)
Deviation of displayed value:
± 0.2 %
Internal resistance:
100 Ohm
Characteristic curve:
Programmable
Response time:
100 ms approx.
Resolution:
12 bit
Connection:
SUB-D, 9-way, plug (shared with external
control connection)
4.6.3
External Control
Signal level:
Low
= 0 VDC
High = 24 VDC
Contact input via relay:
24 VDC approx., is provided by the instrument via a
self-resetting fuse (100 mA)
Connection:
SUB-D, 9-way, plug (shared with external
control connection)
4.6.4
Serial Interface
4.6.4.1 RS232
Standard:
RS232
Parameters:
8 data bits, 1 stop bit, no parity, no protocol
Signals:
RXD and TXD
Baud rate:
9600, 19200, 38400 Baud
Connection:
SUB-D, 9-way, socket (shared with RS485)
GA300550402_002_C1 – 10/2016
4.6.4.2 RS485
Standard:
RS485 (half duplex)
Parameters:
8 data bits, 1 stop bit, no parity, no protocol
Signals:
A and B
Baud rate:
9600, 19200, 38400 Baud
Connection:
SUB-D, 9-way, socket (shared with RS232)
4.6.5
USB-A Interface (front side)
Connection:
USB-A, socket
NOTICE: Storage Media.
For proper operation, we recommend that you use a USB memory stick
compliant with USB standard 2.0 and a memory capacity of 1 – 4 GB.
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5.
Installation
5.1
Supplied Equipment
Designation
Quantity
GRAPHIX controller
1
Mains power cord with safety plug (EU)
1
Mains power cord with safety plug (US)
1
Operating Instructions (each EN and DE)
1
USB stick with operating instructions (multi-language)
1
Spare fuse
2
Collar screw
4
Plastic sleeve
4
Edge protection rubber
2
Rubber foot
2
Dust protection cap for USB socket
1
Table 4 – Supplied equipment
5.2
Mechanical Installation
The GRAPHIX controller can be used as follows:
Rack installation
Front panel installation
Benchtop instrument
WARNING: Powering down
Install the instrument or place it so that you are in a position to operate the
mains power switch at any time or ensure that the instrument can be
deenergised at any time.
GA300550402_002_C1 – 10/2016
5.2.1
Rack Installation
The GRAPHIX controller has been designed for installation in a module rack in accordance
with DIN 41 494 (19-in., 3 HU) ( Figure 3, page 24). For this, the delivery scope includes
4 collar screws and four plastic sleeves.
Figure 3 – Rack installation
Affix the module rack.
Push the GRAPHIX controller into the module rack.
Affix the instrument in the module rack with the collar screws and plastic sleeves included
in the delivery.
5.2.2
Front Panel Installation
Installation in a front panel requires a cut-out as given below ( Figure 4, page 24):
Figure 4 – Front panel cut-out (in mm)
Guide the GRAPHIX controller into the cut-out.
Affix the instrument to the sub-rack with the neck collar screws and the plastic sleeves
included in the delivery.
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5.2.3
Benchtop Instrument
When planning to use the GRAPHIX controller as a benchtop instrument, proceed as
follows:
Push one of the two edge protection rubber pieces included in the delivery over the top
edge of the front panel ( Figure 5, page 25)
Place the GRAPHIX controller on its back ( Figure 6, page 25)
Push the second edge protection rubber piece included in the delivery onto the bottom
edge of the front panel
WARNING: Risk of suffering injury.
When using the GRAPHIX controller as a benchtop instrument fit the two edge
protection rubber pieces onto the top and bottom edge of the front panel so
as to avoid injury by sharp edges.
Stick the two rubber feet included in the delivery onto the bottom of the housing.
Figure 5 – Preparing the top side of the instrument
for utilisation as a benchtop unit
Figure 6 – Preparing the bottom side of the
instrument for utilisation as a benchtop
unit
Turn the GRAPHIX controller over again and move it to the desired place.
GA300550402_002_C1 – 10/2016
5.3
Connections
5.3.1
Rear of the Instrument
Depicted in Figure 7, page 26 is the rear side of the GRAPHIX controller. The pin assignment
of the different connectors is described in the following sections.
Figure 7 – Rear of the instrument
A
Mains power connection with mains switch
and instrument fuses
B
Earth connection
C1/C2 Connection of measurement channel 1 for
sensors (CH1 A and CH1 B)
D1/D2 Connection of measurement channel 2
(for GRAPHIX TWO and THREE only) for
sensors (CH2 A and CH2 B)
E1/E2 Connection of measurement channel 3
(for GRAPHIX THREE only) for sensors
(CH3 A and CH3 B)
F
Relay output connection (Relay Output)
G
Analogue output, chart recorder output
and external control connection (Control)
H
RS232 or RS485 interface connection
(RS232/RS485)
5.3.2
Mains Power Connection
The mains connection on the rear side ( Figure 7, A, page 26) has been designed to
accept a mains cord which on the instrument side is equipped with a cold-device plug.
NOTICE: Mains cord
Included in the delivery of the instrument is a mains cord. If the plug on the
mains power side is not compatible with your mains power outlets, you will
need a mains cord which meets the following specifications:
Three-wire cable with protective earthing.
Conductor cross-section: 3 x 0.75 mm² or greater.
Cable length 2.5 m maximum.
DANGER: Mains voltage
Appliances, which have not been professionally connected to Earth, can be
life-threatening in the event of a malfunction. For this reason use three-wire
mains cords, respectively extension cords with protective earthing only. Insert
the mains plug into a mains power socket, which provides an Earth contact.
Insert the plug of the mains cord into the mains socket provided on the instrument.
Insert the mains plug of the mains cord into the mains outlet.
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5.3.3
Earthing
Through the earthing screw ( Figure 7, B, page 26) the GRAPHIX controller is
connected to the Earth connection on the vacuum chamber.
NOTICE: Earthing
Connect the Earth connection on the vacuum chamber by means of a
protective earth conductor to the earthing screw on the instrument
5.3.4
Measurement Channel (CH1 … CH3)
The connector marked Channel serves the purpose of connecting sensors. For each
measurement channel two sockets connected in parallel are available: one each 8-way
modular socket ( Figure 7, C1, D1, E1, page 26 and Figure 8, page 27) and a 15-way
SUB-D- socket ( Figure 7, C2, D2, E2, page 26 and Figure 9, page 27).
Figure 8 – Sensor connection (modular socket, 8-way)
1
+24 VDC
2
Ground
3
Signal
4
Identification resistor
5
Signal ground
6
Status
7
Not available
8
HV On
Figure 9 – Sensor connection (SUB-D socket, 15-way)
1
Not available
2
Signal
3
Not available
4
HV On
5
Ground
6
Not available
7
Degas
8
+24 VDC
9
Not available
10
Identification resistor
11
+24 VDC
12
Signal ground
13
RXD
14
TXD
15
Ground
CAUTION: Impermissible Sensors.
Connecting sensors which have not been designed to be operated in
connection with the GRAPHIX controller or which do not comply with current
EMC guidelines can impair operation of the instrument or even damage it.
Always operate the GRAPHIX controller with approved sensors. Chapter
3.2 Suitable Sensors, page 15.
CAUTION: Multiple Sensors.
Only a single sensor may be connected to each measurement channel.
Otherwise, the connected sensors will suffer damage. Connect to each
measurement channel precisely one sensor only.
Connecting:
Measurement channel 1: Connect the sensor using a shielded straight through (1:1) cable
to connector CH1 A or CH1 B.
Measurement channel 2: Connect the sensor using a shielded straight through (1:1) cable
to connector CH2 A or CH2 B (for two- and three-channel instruments only).
Measurement channel 3: Connect the sensor using a shielded straight through (1:1) cable
to connector CH3 A or CH3 B an (for three-channel instruments only).
GA300550402_002_C1 – 10/2016
NOTICE: Sensor exchange.
Switch the GRAPHIX controller off for the change of the configuration of the
attached sensors (sensor exchange).
5.3.5
Relay Output
Through the connector marked Relay Output ( Figure 7, F, page 26 and Figure 10,
page 28) you may utilise the floating relay contacts for switching functions and for error
monitoring.
Figure 10 – Connection socket for relay output (SUB-D, 25-way)
1
Ground
2
Not available
3
Error NC
4
SP1 NC
5
SP1 COM
6
SP1 NO
7
Ground
8
SP2 NC
9
SP2 COM
10
SP2 NO
11
SP3 NC
12
SP3 COM
13
SP3 NO
14
Error NO
15
Error COM
16
SP4 NC
17
SP4 COM
18
SP4 NO
19
SP5 NC
20
SP5 COM
21
SP5 NO
22
SP6 NC
23
SP6 COM
24
SP6 NO
25
+ 24 VDC, 200 mA
Corresponds to the
requirements of a
protected safety extra-low
voltage (SELV-E in
accordance with
EN 61010).
COM Common
NC
Normally closed contact
NO
Normally open contact
NOTICE:
Contact 25 serves the purpose of powering relays with a higher switching
capacity. The contact is protected by means of a PTC resistor limiting the
maximum current to 200 mA. The PTC resistor is self-resetting when
switching the instrument off or pulling the plug out of the socket marked Relay
Output.
DANGER: Dangerous voltage
Voltages exceeding 60 VDC or 30 VAC are dangerous when touched. You
may only switch at the connector marked Relay Output voltages of 30 VDC or
30 VAC with a maximum current of 1 A. The voltage must comply with the
requirements of a safety extra-low voltage (SELV-E in accordance with EN
61010).
Connecting:
Connect the peripheral components using a shielded connecting cable to the connector
marked Relay Output on the rear of the GRAPHIX controller.
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5.3.6
Analogue Output, Chart Recorder Output and External Control (Control)
The connector marked Control ( Figure 7, G, page 26 and Figure 11, page 29) provides
the connections for the analogue outputs for the signals of the individual measurement
channels, the chart recorder output (programmable analogue output ) as well as the inputs
for externally controlling the IONIVAC sensors and PENNINGVAC sensors PTR81N,
PTR225, PTR225N, PTR225S, PTR225SN, PTR237 and PTR237N.
Figure 11 – Connection plug for analogue output, chart recorder
output and external control (SUB-D, 15-way)
1
Analogue output CH1
2
Analogue output CH3
3
Analogue ground
4
HV On CH3
5
HV On CH1
6
Analogue output CH2
7
Chart recorder output
8
Analogue ground
9
HV On CH2
Connecting:
Connect the peripheral components using a shielded connecting cable to the connector
marked Control on the rear of the GRAPHIX controller.
5.3.7
Interfaces RS232/RS485 (RS232/RS485)
The connector marked RS232/RS485 ( Figure 7, H, page 26 and Figure 12, page 29)
allows you to operate the instrument by means of a computer or a terminal.
Figure 12 – Connection socket for interface (SUB-D, 9-way)
1
B (RS485)
2
TxD (RS232)
3
RxD (RS232)
4
Link to 6
5
Ground
6
Link to 4
7
Link to 8
8
Link to 7
9
A (RS485)
Connecting:
Connect the serial interface of the computer using a shielded connecting cable to the
connector marked RS232/RS485 on the rear of the GRAPHIX controller.
WARNING:
When using the RS232 interface, use a serial extension cable equipped with
a 9-way plug and a 9-way socket. The cable must be of the straight through
type.
To utilise the RS485 interface, a special cable will be required.
GA300550402_002_C1 – 10/2016
6.
Operation
6.1
Front Panel
Figure 13, page 30 depicts the front panel of the GRAPHIX controller.
Figure 13 – Front panel
A
Graphic TFT touch display (resistive)
B
USB-A interface
6.1.1
USB-A Interface
Located on the front of the instrument is an USB-A socket for connecting suitable USB
storage media ( Chapter 4.6.5 USB-A Interface (front side), page 22) for recording data
and software updating.
6.1.2
Display
The GRAPHIX controller makes different display modes possible. You may select between
the following display modes:
Normal
Default display mode, which provides all important information on the connected sensors.
Chart
Graphic display of the pressure history of the connected sensors. Besides the pressure
history, also the measured values for the individual channels are displayed.
Big
The display is limited to displaying the measured values of the connected sensors using a
large font.
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Speedo
Pressure reading for the connected sensor of one selected channel is in the shape of a
speedometer. The mantissa is displayed as a round progress, whereas the exponent is
displayed centrally.
Leak Test
Display mode for the Leak Test function. Besides the leak rate, current pressure, total time
and remaining time are displayed.
The selection is made using the channel menu button
( Chapter 6.4.2.2 Changing
Display Mode, page 41) or the parameter Display Mode in the parameter group Display of
the main menu ( Chapter 7.4.1 Display Mode, page 84).
6.1.2.1 Display Mode – Normal
The display mode Normal is the default display mode of the GRAPHIX controller. Here all
important information on the connected sensors can be viewed at a glance.
Figure 14 – Display mode Normal
A
Display field for measurement channel 1
B
Display field for measurement channel 2
(GRAPHIX TWO and THREE only)
C
Display field for measurement channel 3
(GRAPHIX THREE only)
Figure 15 – Display field for a measurement
channel
A
Measurement channel
B
Sensor type (automatic detection)
C
Sensor name (can be entered freely)
D
Status or warning symbols
E
Display unit
F
Measured value or status message
G
Switching function status
Measurement Channel
For each measurement channel, a separate display field is provided ( Figure 14, A, B,
C, page 31).
Sensor Type
The sensor type for the measurement channel is displayed on the left at the bottom of the
display field ( Figure 15, B, page 31). The GRAPHIX controller will automatically detect
the connected sensors or sensor groups of the respective measurement channel by means
of an identification resistor.
GA300550402_002_C1 – 10/2016
Sensor Name
At the centre bottom area of the display field for the measurement channel, the sensor name
( Figure 15, C, page 31) is displayed. Through the main menu, you may describe the
connected sensor in greater detail or label it by entering information as to where it is
installed.
Status or Warning Symbols
At the right-hand bottom area of the display field for the measurement channel, the status
or warning symbols ( Figure 15, D, page 31) are displayed. The status and warning
symbols are explained in Table 7, page 38.
Display Unit
At the right-hand top area of the display field for the measurement channel, the unit of
measurement is displayed directly after the measured value ( Figure 15, E, page 31).
Through the main menu, you may select the unit of measurement. The unit of measurement
is the same for all channels.
Measured value or status message
In the central upper area of the display field for the measurement channel, the measured
value or a status message ( Figure 15, F, page 31) are displayed. In the case of linear
sensors, negative measured values can be displayed depending on the measurement range
or the zero adjustment. For further information, refer to the manual for the respective sensor.
Switching Function Status
In the left-hand upper area of the display field for the measurement channel, the status of
the switching functions ( Figure 15, G, page 31) is displayed. When the yellow triangle
comes on above the number, then the pressure is higher than the switching threshold. The
switching threshold is not yet active. When the green triangle under the number comes on,
then the pressure is lower than the switching threshold. The switching threshold is still active.
Through the main menu, you may configure the switching functions. The entry range for the
values will depend on the connected sensor. The switching functions can be freely assigned
to the channels. Only those switching thresholds, which have been assigned to the channel,
are displayed.
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6.1.2.2 Display Mode – Chart
The display mode Chart allows you to graphically display the pressure history of the
connected sensors by way of a chart.
Here in the chart the y-axis (pressure in the preselected unit of measurement) is scaled
automatically. The scale for the x-axis (time) defaults to the scale 1:1. Through the buttons
and you may change the scale in steps of 1:2, 1:4 or 1:8.
Besides the pressure history, also the measured values or status messages for the
individual channels are displayed. Error messages are shown in red font. If a notice is
present for the attached sensor, the measured value is presented in yellow font.
Figure 16 – Display mode Chart
A
Measured value or status message for
channel 1
B
Measured value or status message for
channel 2 (GRAPHIX TWO and
THREE only)
C
Measured value or status message for
channel 3 (GRAPHIX THREE only)
D
Pressure in the selected unit of
measurement (automatic scaling)
E
Scaling option for timescale
(Default scale = 1:1, scale 1:2, 1:4 or 1:8
selectable through buttons or
F
Pressure history for the active channels
G
Time scale
6.1.2.3 Display Mode – Big
The display mode Big is limited to displaying the measured values or a status message for
the connected sensors. Measured value or status message are displayed in a larger font.
Error messages are shown in red font. If a notice is present for the attached sensor, the
measured value is presented in yellow font.
Figure 17 – Display mode Big
A
Display field for measurement channel 1
B
Display field for measurement channel 2
(GRAPHIX TWO and THREE only)
C
Display field for measurement channel 3
(GRAPHIX THREE only)
D
Measured value or status message for
channel 1
E
Measured value or status message for
channel 2 (GRAPHIX TWO and
THREE only)
F
Measured value or status message for
channel 3 (GRAPHIX THREE only)
GA300550402_002_C1 – 10/2016
6.1.2.4 Display Mode Speedo
The display mode Speedo allows you to display the measured value in the shape of a
speedometer. The mantissa is displayed as a round progress, whereas the exponent and
the display unit are displayed centrally. Additionally, measured values and status messages
of the sensors connected to the other channels are displayed at the bottom.
If an error occurs, the warning symbol
appears at the right-hand top area of the display
field. In case of a notice the warning symbol
appears.
Error messages for the other channels are shown in red font. If a notice is present, the
measured value is presented in yellow font.
Figure 18 – Display mode Speedo
A
Display field for measurement channel
B
Mantissa of the measured value as
progress
C
Exponent of the measured value or
warning symbol
D
Display unit
E
Measured value or status message for one
further channel (GRAPHIX TWO and
THREE only)
F
Measured value or status message for one
further channel (GRAPHIX THREE only)
G
Warning symbol
6.1.2.5 Display Mode Leak Test
The display mode Leak Test allows you to display the leak rate determination using pressure
rise method. Besides the current, last and next-to-last leak rate, current pressure, total time
since start of the procedure and remaining time for the current interval are displayed.
Error messages are shown instead of the current pressure in red font. If a notice is present
for the connected sensor, the current pressure is presented in yellow font.
Figure 19 – Display mode Leak Test
A
Display field for measurement channel
B
Currently determined leak rate
C
Last determined leak rate
D
Next-to-last determined leak rate
E
Currently measured pressure or status
message
F
Total time since start of the procedure
[hh:mm:ss]
G
Remaining time for current interval
[hh:mm:ss]
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6.1.3
Controls
The GRAPHIX controller is operated through the buttons displayed on the graphic TFT touch
display. Since this is a resistive type of touchpanel, entries are possible even when using
gloves.
Main Menu Buttons
Pressing the touchscreen for a duration of approximately 1 second displays the main menu
( Figure 20 and Figure 21, page 35). You can also use the display mode selection
window ( Chapter 6.4.2.2 Changing Display Mode, page 41). Here you may access
different parameters and instrument functions. These have been arranged by way of
parameter groups within which you can view or change the corresponding parameters or
enable functions. In this way, you may configure your GRAPHIX controller and also utilise
further functions offered by the instrument.
Channel Menu Buttons
Briefly touching the desired channel invokes the channel menu ( Figure 22, page 35)
of the respective channel. Here you can control the sensor connected to the respective
channel. The available setup options depend on the connected type of sensor. Moreover,
you can change in the channel menu the display mode from Measured values display
Normal to Chart.
Figure 20 – Main menu 1/2
Figure 21 – Main menu 2/2
Figure 22 – Channel menu (example)
To select, tap the centre of the buttons or symbols.
NOTICE:
The touchscreen is capable of processing only one input at a time. It is not
permissible to simultaneously tap the touchscreen at several points since then
no defined control will be possible.
GA300550402_002_C1 – 10/2016
6.1.4
Symbols
6.1.4.1 Symbols for the Controls
Symbol
Designation
Explanation
Next
Next menu page
Previous
Previous menu page
Up
Scroll upward in the selection list
Down
Scroll downward in the selection list
Return
Return to the previous display
OK
Accept / confirm
Configuration
Start the main menu
Display Mode
Change display mode
Normal
Enabling display mode Normal
Big
Enabling display mode Big
Chart
Enabling display mode Chart
Leak Test
Enabling display mode Leak Test
Speedo Channel 1
Enabling display mode Speedo for channel 1
Speedo Channel 2
Enabling display mode Speedo for channel 2
Speedo Channel 3
Enabling display mode Speedo for channel 3
Scale up
Zoom out time scale
Scale down
Zoom in time scale
Start
Start a function
■
Stop
Stop a function
HV On
Switch high vacuum measurement circuit on
HV Off
Switch high vacuum measurement circuit off
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37
Symbol
(continued)
Designation
Explanation
HV On/Off n.a.
It is not possible to turn on or off the high vacuum measurement
circuit manually because of parameter settings.
Degas On
Switch degas on
Degas Off
Switch degas off
Help
Start help for current function or operation of the instrument
Table 5 – Symbols for the controls
6.1.4.2 Symbols for the Language Selection
Symbol
Designation
Explanation
Language selection
Start language selection menu
English
Select menu language EN (English)
German
Select menu language DE (German)
Chinese
Select menu language CN (Chinese)
French
Select menu language FR (French)
Italian
Select menu language IT (Italian)
Japanese
Select menu language JP (Japanese)
Spanish
Select menu language ES (Spanish)
Korean
Select menu language KN (Korean)
Russian
Select menu language RU (Russian)
Polish
Select menu language PL (Polish)
Turkish
Select menu language TR (Turkish)
Table 6 – Symbols for language selection
GA300550402_002_C1 – 10/2016
6.1.4.3 Status and Warning Symbols
Symbol
Designation
Explanation
Status Calibration
Factor
Gas type correction factor differs from 1
Status Offset
Offset differs from 0
Status HV On
PENNINGVAC sensor is on
Status HV 1 On
Filament 1 of the IONIVAC sensor is on
Status HV 2 On
Filament 2 of the IONIVAC sensor is on
Status Degas
Degassing is active
Notice
Sensor status indicates “Notice”
Error
Sensor status indicates “Error”
SP Off
Switching threshold disabled (pressure high)
SP On
Switching threshold enabled (pressure low)
Table 7 – Status indicating and warning symbols
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39
6.2
Switching ON and OFF
6.2.1
Switching ON
Switch the instrument on through its main switch.
After switching on, the GRAPHIX controller will run the following:
Display of the start screen with the version number.
Re-establishing of the most recently setup parameters.
Identification of the connected measuring instruments.
Enabling of the measurement mode in the display mode specified in the
parameter group (depending on the most recent setting).
6.2.2
Switching OFF
Switch the instrument off through its main switch.
CAUTION: Waiting Time
Wait for at least five seconds before switching the instrument on again.
6.3
Operating Modes
The GRAPHIX controller can be run in one of the following operating modes:
Measurement Mode
The Measurement mode is the default operating mode. Here the measured values of the
sensors are displayed in the display modes Normal, Chart, Big, Speedo or Leak Test. In the
case of an error, a status message is output instead and/or a symbol is displayed. Further
symbols are used to indicate the status of different operating and/or error modes of the
sensors.
Parameter and Function Mode
In the parameter and function mode, you may access through the main menu different
parameters and instrument functions. These have been arranged in parameter groups within
which you may view or change the corresponding parameters or enable specific functions.
In this way, you may configure your GRAPHIX controller and utilise further functions offered
by the instrument.
GA300550402_002_C1 – 10/2016
6.4
Measurement Mode
6.4.1
Description
The measurement mode is the default operating mode. Here the measured values of the
sensors are displayed in the different display modes. Additionally status messages (
Table 8, page 40) and/or error messages ( Table 74, page 111) can be displayed.
Display
Explanation
....
No sensor connected.
FS?
Full Scale? Connected analogue CERAVAC sensor
has not been specified. Make a selection, in order to
specify the sensor.
S-OFF
High
vacuum
measurement
circuit
of
the
PENNINGVAC sensors PTR81N, PTR225, TR225N,
PTR225S, PTR225SN, PTR237 or PTR237N has
been switched off.
Measuring value
Connected sensor is identified and in specified
measuring range.
Measuring value and additional warning symbol
in the display mode Normal and Speedo
or
Measuring value displayed by a yellow font in the
display modes Chart, Big and Leak Test as well as
for the other channels in the display mode Speedo
Description depends on the connected sensor:
Pirani adjustment of the connected IONIVAC
sensor of ITR90 series is insufficient.
Filament 1 of the connected IONIVAC sensor of
ITR200 series is defective.
Connected CERAVAC sensor of CTR101 series is
in the heating phase.
Table 8 – Status messages in the measured values display
After switching on, the GRAPHIX controller will automatically resume the last measurement
display mode, which was selected. When running the main menu and not making an entry
for more than 60 seconds, then the instrument will revert back to the measured values
display.
6.4.2
Button Functions
6.4.2.1 Invoking the Help Function
Invoke the channel menu by briefly tapping on the desired channel.
Tap on the button
.
o The help function starts.
Figure 23 – Invoking the Help function
To exit the help function tap on the button
.
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6.4.2.2 Changing Display Mode
Invoke the channel menu by briefly tapping on the desired channel in the display modes
Normal, Big or Leak Test.
Tap on button
.
o The selection of display modes starts.
Tap on display window in the display modes Chart or Speedo.
o The selection of display modes starts.
Figure 24 – Changing display mode
For choosing display mode Chart tap on button
.
o Display mode Chart starts.
For choosing display mode Normal tap on button
.
o Display mode Normal starts.
For choosing display mode Big tap on button
.
o Display mode Big starts.
For choosing display mode Speedo Channel 1 tap on button
.
o Display mode Speedo Channel 1 starts.
For choosing display mode Speedo Channel 2 tap on button
.
o Display mode Speedo Channel 2 starts.
For choosing display mode Speedo Channel 3 tap on button
.
o Display mode Speedo Channel 3 starts.
For choosing display mode Leak Test tap on button
.
o Display mode Leak Test starts.
For choosing parameter and function mode tap on button
.
o Main menu starts.
NOTICE:
After turning it off and on again, the GRAPHIX Controller returns back to the
display mode specified in the parameter group Display.
GA300550402_002_C1 – 10/2016
6.4.2.3 Switching the High Vacuum Measurement Circuit On
For the PENNINGVAC sensors PTR81N, PTR225, PTR225N, PTR225S, PTR225SN,
PTR237 and PTR237N, the high vacuum measurement circuit can be switched on manually.
For this, the parameter Sensor on in parameter group Channel 1 … 3 must be set to Manual
( Chapter 7.1.13 Sensor Switch-on Type (Sensor On), page 72).
Invoke the channel menu by briefly tapping on the desired channel.
Tap on the button
.
o The high vacuum measurement circuit is enabled. In the display field for the
corresponding measurement channel the yellow status symbol will come on.
Figure 25 – Switching the high vacuum measurement circuit on
6.4.2.4 Switching the High Vacuum Measurement Circuit Off
For the PENNINGVAC sensors PTR81N, PTR225, PTR225N, PTR225S, PTR225SN,
PTR237 and PTR237N, the high vacuum measurement circuit can be switched off manually.
For this, the parameter Sensor off in parameter group Channel 1 … 3 must be set to Manual
( Chapter 7.1.15 Sensor Switch-off Type (Sensor Off), page 73).
Invoke the channel menu by briefly tapping on the desired channel.
Tap on the button
.
o The high vacuum measurement circuit is disabled. In the display field for the
corresponding measurement channel the yellow status symbol will turned off.
Figure 26 – Switching the high vacuum measurement circuit off
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43
6.4.2.5 Switching the Emission On
For the IONIVAC sensors of ITR200 series, the emission can be switched on manually.
For this, the parameter Emission in parameter group Channel 1 … 3 must be set to Manual
( Chapter 7.1.7 Emission Switching On and Switching Off Type (Emission), page 69).
Invoke the channel menu by briefly tapping on the desired channel.
Tap on the button
.
o The emission is enabled. In the display field for the corresponding measurement
channel the yellow status symbol
or
will come on depending on the active
filament.
Figure 27 – Switching the emission on
6.4.2.6 Switching the Emission Off
For the IONIVAC sensors of ITR200 series, the emission can be switched off manually
anytime, independent of the settings of the parameter Emission in the parameter group
channel 1 … 3.
Invoke the channel menu by briefly tapping on the desired channel.
Tap on the button
.
o The emission is disabled. In the display field for the corresponding measurement
channel the yellow status symbol
or
will turn off depending on the active
filament.
Figure 28 – Switching the emission off
GA300550402_002_C1 – 10/2016
6.4.2.7 Switching the Degas Function On
For the IONIVAC sensors of ITR90 series and ITR200 series the degas function can be
switched on manually.
This requires that the emission has been enabled and that the sensor is operating within a
pressure range permissible for running the degas function ( See sensor manual).
In the display field for the corresponding measurement channel the yellow status symbol
or
must be on, depending on the active filament.
Invoke the channel menu by briefly tapping on the desired channel.
Tap on the button
.
o The degas function is enabled. For the corresponding measurement channel, the
yellow status symbol
will come on.
Figure 29 – Switching the degas function On
6.4.2.8 Switching the Degas Function Off
For the IONIVAC sensors of ITR90 series and ITR200 series the degas function can be
switched off manually.
Invoke the channel menu by briefly tapping on the desired channel.
Tap on the button
.
o The degas function is disabled. In the display field for the corresponding
measurement channel the yellow status symbol
will turn off.
Figure 30 – Switching the degas function Off
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45
6.4.2.9 Starting the Leak Test Function
The leak test function can be started manually in the display mode Leak Test.
Invoke the channel menu by briefly tapping on the display window.
Tap on the button
.
o The leak test function starts.
Figure 31 – Starting Leak Test
The procedure is canceled automatically, if it comes to an error message.
Eliminate the malfunction.
Invoke the channel menu by briefly tapping on the display window.
Acknowledge the elimination of malfunction by tapping on the button
.
o The leak test function can be started new.
6.4.2.10 Stopping the Leak Test Function
The leak test function can be stopped manually in the display mode Leak Test.
Invoke the channel menu by briefly tapping on the display window.
Tap on the button
.
o The leak test function stops.
Figure 32 – Stopping Leak Test
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6.5
Parameter and Function Mode
In the parameter and function mode, you may access through the main menu different
parameters and instrument functions. These have been arranged in parameter groups within
which you may view or change the corresponding parameters or enable specific functions.
In this way, you may configure your GRAPHIX controller and utilise further functions offered
by the instrument.
6.5.1
Operating Concept
In the measurement mode, touch the touchscreen surface for approximately 1 second.
o You will now see the main menu with an overview of the parameter groups.
To scroll, use the buttons
and
.
o You will then see the each case preceding or following page. In the upper area of
the display field, you can see which page is just being displayed.
To exit the parameter and function mode tap on the button
.
o The instrument will now be running the measurement mode again.
Figure 33 – Parameter groups in the main menu
Figure 34 – Parameters of a parameter group
In the main menu, tap on the desired parameter group in order to display the
parameters of this parameter group, to change these or enable specific functions.
o The parameters or functions available for this parameter group are displayed.
To scroll use the buttons
and
o You will then see the each case preceding or following page. In the upper area of
the display field, you can see which page is just being displayed.
To exit the parameter and function mode tap on the button
.
o The instrument will now display the main menu again.
Tap on the entry window on the right beside the name of the parameter to change the
value of this parameter or to start or terminate specific functions.
Depending on the parameter, there are different ways for displaying and changing it.
NOTICE:
When the instrument is running in the parameter and function mode, and
when not entering a change for more than 60 seconds, then the instrument
will automatically return back to the measurement mode.
Any changes, which have been entered and confirmed up to this point of time,
are automatically saved in the EEPROM.
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47
Entering Values or Text
Enter the value by way of numbers or characters.
o The entered value is displayed in the upper area of the display field.
To delete the entire value, tap on the button CLR.
o The displayed value is deleted.
To delete the character, which was entered last, tap on the button DEL.
o The last character is deleted.
To save and accept, tap on the button OK.
o The entered value is saved.
o The parameter selection display is displayed once more.
To exit it without saving, tap on the button ESC.
o The initially set up value is retained.
o The parameter selection display is displayed once more.
Figure 35 – Values entry field
Figure 36 – Text entry field
Selection List
To select in the list, use the buttons
and
or enter the value directly.
o The each case selected value is displayed with a green background.
To save, tap on the button
.
o The entered value is saved.
To accept, tap on the button
.
o The parameter selection display is displayed once more.
Figure 37 – Selection list
GA300550402_002_C1 – 10/2016
6.5.2
Parameter Groups
In the parameter and function mode, you may access via the main menu all available
parameters depend on the number of channels and the connected sensor. You may view or
change these parameters. In this way, you may configure your GRAPHIX controller.
Depicted in Table 9, page 52 are all parameters available by the instrument.
Parameter Group
Parameter
Selection
Channel 1 … 3
Sensor Type
TTR?
TTR81N
TTR90
TTR91
TTR91N
TTR96
TTR96N
TTR211
TTR216
TTR911
TTR911N
TTR916
TTR916N
TTR10X
TTR100
TTR101
TTR101N
PTR?
PTR81N
PTR225
PTR225N
PTR237
PTR237N
PTR90?
PTR82N
PTR90
PTR90N
CTR?
CTR90-0.1
CTR90-1
CTR90-10
CTR90-20
CTR90-100
CTR90-1000
CTR91-0.1
CTR91-1
CTR91-10
CTR91-20
CTR91-100
CTR91-1000
CTR100/N-0.1
CTR100/N-1
CTR100/N-10
CTR100/N-20
CTR100/N-100
CTR100/N-1000
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49
Parameter Group
(continued)
Parameter
Selection
Channel 1 … 3
Sensor Type
CTR101/N-0.1
CTR101/N-1
CTR101/N-10
CTR101/N-20
CTR101/N-100
CTR101/N-1000
Detection
Auto
Manual
Sensor Name
Text entry
Filter
Fast
Medium
Slow
Gas Type
N2
Ar
H2
Cor
Correction Factor
Entry of values
Emission
Auto
Manual
Filament
Auto
Filament 1
Filament 2
Offset On / Off
Off
On
Offset Value
Entry of values
Take Current Pressure
Set
Zero Adjust
Set
Sensor On
Manual
External
Hot
Channel 1
Channel 2
Channel 3
T-On
Entry of values (display unit)
Sensor Off
Manual
External
Self
Channel 1
Channel 2
Channel 3
T-Off
Entry of values (display unit)
Curve Type
Analog Lin
Analog Log
U-Start
Entry of values (Volt)
p-Start
Entry of values (display unit)
U-End
Entry of values (Volt)
p-End
Entry of values (display unit)
F-Start
Entry of values (Volt)
F-End
Entry of values (Volt)
GA300550402_002_C1 – 10/2016
Parameter Group
(continued)
Parameter
Selection
Setpoints
Channel
Off
1
2
3
SP-On
Entry of values (display unit)
SP-Off
Entry of values (display unit)
System
Unit
mbar
Torr
Pa
psi
Micron
Key Tone
Off
On
Error Relay
All
Only Device
Channel 1 & Device
Channel 2 & Device
Channel 3 & Device
All N.C.
Only Device N.C.
Channel 1 & Device N.C.
Channel 2 & Device N.C.
Channel 3 & Device N.C.
Data Rate
9600
19200
38400
Com Port
RS232
RS485
Center
Address
Entry of values
Time
Entry of values (hh:mm:ss)
Date
Entry of values (YYYY-MM-DD)
System Information
Display
Display Mode
Normal
Big
Chart
Leak Test
Speedo Channel 1
Speedo Channel 2
Speedo Channel 3
Resolution
Standard
High
Brightness
Low
Medium
High
Logging
Interval (s)
Entry of values (seconds)
File Size (h)
Entry of values (hours)
Enable / Disable Logging
►
■
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51
Parameter group
(continued)
Parameter
Selection
Recorder
Analog Mode
Log
Log A
Log -6
Log -3
Log +0
Log +3
LogC1
LogC2
LogC3
Recorder
Analog Mode
Lin -10
Lin -9
Lin -8
Lin -7
Lin -6
Lin -5
Lin -4
Lin -3
Lin -2
Lin -1
Lin +0
Lin +1
Lin +2
Lin +3
IM221
LogC4
PM411
Channel
1
2
3
Chart
Interval (s)
Entry of values (in seconds)
Channel 1
Off
On
Channel 2
Off
On
Channel 3
Off
On
Leak Test
Interval (min)
Entry of values (Minutes)
Volume (l)
Entry of values (Liter)
Channel
1
2
3
Language
Language
EN (English)
DE (German)
CN (Chinese)
FR (French)
IT (Italian)
JP (Japanese)
ES (Spanish)
KR (Korean)
RU (Russian)
PL (Polish)
TR (Turkish)
GA300550402_002_C1 – 10/2016
Parameter group
(continued)
Parameter
Selection
Configuration
Save Data
Save Data
Restore Data
Restore Data
Factory Setup
Reset Data
Update
Start Update
Start Update
Error Log
Read Error Log (Error 1 – 20)
Table 9 – Parameter groups and corresponding parameters
GA300550402_002_C1 – 10/2016
53
7.
Parameters
7.1
Channel 1 … 3
For each measurement channel there is a separate set of sensor parameters. Depending
on which sensor is connected to the respective measurement channel, different parameters
will be available ( Table 10 to Table 17, page 53 to 55). The parameters available for
the respective sensor are marked in the table through the symbol .
For more details on the selection and set up options for the individual sensor parameters
see Chapter 7.1.1 Sensor Type to 7.1.17 Entering the Characteristics for Further Sensors,
page 56 to 73.
Sensor
Sensor type
Detection
Sensor Name
Filter
Gas Type
Correction
Factor
Emission
Filament
Offset On / Off
Offset Value
Take Current
Pressure
Zero Adjust
Sensor on
T-On
Sensor off
T-Off
TTR81N
TTR90
TTR91
TTR91N
TTR96
TTR96N
TTR211
TTR216
TTR911
TTR911N
TTR911N (RS232)
TTR916
TTR916N
Table 10 – Available sensor parameters for THERMOVAC sensors
Sensor
Sensor type
Detection
Sensor Name
Filter
Gas Type
Correction
Factor
Emission
Filament
Offset On / Off
Offset Value
Take Current
Pressure
Zero Adjust
Sensor on
T-On
Sensor off
T-Off
TTR100
TTR101
TTR101N
TTR101N (RS232)
TTR200N (RS232)
Table 11 – Available sensor parameters for THERMOVAC sensors (combination sensors)
GA300550402_002_C1 – 10/2016
Sensor
Sensor type
Detection
Sensor Name
Filter
Gas Type
Correction
Factor
Emission
Filament
Offset On / Off
Offset Value
Take Current
Pressure
Zero Adjust
Sensor on
T-On
Sensor off
T-Off
ITR90/N
ITR200/N
Table 12 – Available sensor parameters for IONIVAC sensors (combination sensors)
Sensor
Sensor type
Detection
Sensor Name
Filter
Gas Type
Correction
Factor
Emission
Filament
Offset On / Off
Offset Value
Take Current
Pressure
Zero Adjust
Sensor on
T-On
Sensor off
T-Off
PTR81N
PTR225
PTR225N
PTR225N (RS232)
PTR237
PTR237N
Table 13 – Available sensor parameters for PENNINGVAC sensors
Sensor
Sensor type
Detection
Sensor Name
Filter
Gas Type
Correction
Factor
Emission
Filament
Offset On / Off
Offset Value
Take Current
Pressure
Zero Adjust
Sensor on
T-On
Sensor off
T-Off
PTR82N
PTR90
PTR90N
PTR90N (RS232)
PTR200N (RS232)
Table 14 – Available sensor parameters for PENNINGVAC sensors (combination sensors)
Sensor
Sensor type
Detection
Sensor Name
Filter
Gas Type
Correction
Factor
Emission
Filament
Offset On / Off
Offset Value
Take Current
Pressure
Zero Adjust
Sensor on
T-On
Sensor off
T-Off
CTR90-0.1
CTR90-1
CTR90-10
CTR90-20
CTR90-100
CTR90-1000
CTR91-0.1
CTR91-1
CTR91-10
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55
Sensor
(continued)
Sensor type
Detection
Sensor Name
Filter
Gas Type
Correction
Factor
Emission
Filament
Offset On / Off
Offset Value
Take Current
Pressure
Zero Adjust
Sensor on
T-On
Sensor off
T-Off
CTR91-20
CTR91-100
CTR91-1000
CTR100/N-0.1
CTR100/N-1
CTR100/N-10
CTR100/N-20
CTR100/N-100
CTR100/N-1000
CTR101/N-0.1
CTR101/N-1
CTR101/N-10
CTR101/N-20
CTR101/N-100
CTR101/N-1000
Table 15 – Available sensor parameters for CERAVAC sensors
Sensor
Sensor type
Detection
Sensor Name
Filter
Gas Type
Correction
Factor
Emission
Filament
Offset On / Off
Offset Value
Take Current
Pressure
Zero Adjust
Sensor on
T-On
Sensor off
T-Off
DU200
DU201
DU2000
DU2001
DU2001 rel.
Table 16 – Available sensor parameters for DU sensors
Sensor
Sensor type
Detection
Sensor Name
Filter
Gas Type
Correction
Factor
…
…
…
Curve Type
U-Start
p-Start
U-End
p-End
F-Start
F-End
Further sensors
Table 17 – Available sensor parameters for further sensors
GA300550402_002_C1 – 10/2016
7.1.1
Sensor Type
The parameter Sensor Type displays the type designation of the connected sensor. The
type of sensor is detected through the identification resistor in the connected sensor in the
case of automatic sensor detection or by entering the sensor type in the case of manual
sensor detection.
NOTICE:
THERMOVAC sensors have depending on the type different measurement
and display ranges. During first-time commissioning, only a default
measurement range of 1000 to 5.00e-04 mbar is displayed. The sensor type
TTR? or TTR10X will be displayed automatically.
For full utilisation of the sensor type, dependent measurement and display
range specify the type ( Chapter 7.1.1.1 Specifying the Sensor Type for
THERMOVAC Sensors, page 57).
NOTICE:
PENNINGVAC sensors have depending on the type different measurement
and display ranges. During first-time commissioning, only a default
measurement range of 5.00e-02 to 1.00e-09 mbar for the types PTR81N,
PTR225, PTR225N, PTR225S, PTR225SN, PTR237 and PTR237N is
displayed. The sensor type PTR? will be displayed automatically.
For the types PTR82N, PTR90 and PTR90N a default measurement range of
1000 – 1.00e-08 mbar is displayed. The sensor type PTR90? will be displayed
automatically.
For full utilisation of the sensor type, dependent measurement and display
range specify the type ( Chapter 7.1.1.2 Specifying the Sensor Type for
PENNINGVAC Sensors, page 61).
NOTICE:
CERAVAC sensors have different measurement ranges. When connecting
the sensors of CTR100 series and CTR101 series through the connectors C2,
D2 and E2 on the rear of the instrument ( Figure 7, page 26) these are
automatically detected. During first-time commissioning of the sensors
through the connections C1, D1 and E1 on the rear of the instrument (
Figure 7, page 26) the user is requested to specify the measurement range.
Specify the sensor type ( Chapter 7.1.1.3 Specifying the Sensor Type for
CERAVAC Sensors, page 65).
The sensor type is displayed in the left bottom area of the display field for the measurement
channel ( Figure 15, B, page 31).
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57
7.1.1.1 Specifying the Sensor Type for THERMOVAC Sensors
Sensor Type TTR?
When connecting the following THERMOVAC sensors then during first-time commissioning
TTR? is displayed as the sensor type in the left bottom area of the display field for the
measurement channel:
TTR81N
TTR90
TTR91
TTR91N
TTR96S
TTR96SN
TTR211
TTR216S
TTR911
TTR911N
TTR916
TTR916N
Figure 38 – Display of sensor type TTR?
To specify the connected sensor proceed as follows:
Press in the measurement mode the touchscreen surface for approximately 1 second.
o The main menu with an overview of the parameter groups is displayed.
Figure 39 – Opening the main menu
Tap in the main menu on the parameter group of the desired channel.
o The parameters available for this parameter group are displayed.
Figure 40 – Selection of parameter group Channel
GA300550402_002_C1 – 10/2016
Tap on the entry window on the right beside the parameter Sensor type to change the
value of this parameter.
o The selection list with different sensor types opens.
Figure 41 – Selection of parameter Sensor Type
To select from the list, use the buttons
and
or enter the value for the desired
sensor directly.
o The in each case selected value is displayed with a green background.
To save, tap the button
.
The setup value is saved.
To exit, tap the button
.
o The parameter selection display is displayed again.
Figure 42 – Selection of the desired sensor
To exit the parameter selection display, tap the button
.
o The main menu with an overview of the parameter groups is displayed again.
To exit the main menu, tap the button
.
o Now the previously selected measured values display mode of the measurement
mode is displayed.
o As sensor type, the selected sensor is displayed in the left bottom area of the
display field of the measurement channel.
Figure 43 – Display of selected sensor type
GA300550402_002_C1 – 10/2016
59
Sensor Type TTR10X
When connecting the following THERMOVAC sensors, then during first-time commissioning
TTR10X is displayed as the sensor type in the left bottom area of the display field for the
measurement channel:
TTR100
TTR100S2
TTR101
TTR101N
TTR101S2
TTR101S2N
Figure 44 – Display of sensor type TTR10X
To specify the connected sensor proceed as follows:
Press in the measurement mode the touchscreen surface for approximately 1 second.
o The main menu with an overview of the parameter groups is displayed.
Figure 45 – Opening the main menu
Tap in the main menu on the parameter group of the desired channel.
o The parameters available for this parameter group are displayed.
Figure 46 – Selection of the parameter group
Channel
GA300550402_002_C1 – 10/2016
Tap on the entry window on the right beside the parameter Sensor type to change the
value of this parameter.
o The selection list with different sensor types opens.
Figure 47 – Selection of parameter Sensor Type
To select from the list, use the buttons
and
or enter the value for the desired
sensor directly.
o The in each case selected value is displayed with a green background.
To save, tap the button
.
The setup value is saved.
To exit, tap the button
.
o The parameter selection display is displayed again.
Figure 48 – Selection of desired sensor
To exit the parameter selection display, tap the button
.
o The main menu with an overview of the parameter groups is displayed again.
To exit the main menu, tap the button
.
o Now the previously selected measured values display mode of the measurement
mode is displayed.
o As sensor type, the selected sensor is displayed in the left bottom area of the
display field of the measurement channel.
Figure 49 – Display of selected sensor type
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61
7.1.1.2 Specifying the Sensor Type for PENNINGVAC Sensors
Sensor Type PTR?
When connecting the following PENNINGVAC sensors then during first-time commissioning
PTR? is displayed as the sensor type in the left bottom area of the display field for the
measurement channel:
PTR81N
PTR225
PTR225N
PTR225S
PTR225SN
PTR237
PTR237N
Figure 50 – Display of sensor type PTR?
To specify the connected sensor proceed as follows:
Press in the measurement mode the touchscreen surface for approximately 1 second.
o The main menu with an overview of the parameter groups is displayed.
Figure 51 – Opening the main menu
Tap in the main menu on the parameter group of the desired channel.
o The parameters available for this parameter group are displayed.
Figure 52 – Selection of parameter group Channel
GA300550402_002_C1 – 10/2016
Tap on the entry window on the right beside the parameter Sensor type to change the
value of this parameter.
o The selection list with different sensor types opens.
Figure 53 – Selection of parameter Sensor Type
To select from the list, use the buttons
and
or enter the value for the desired
sensor directly.
o The in each case selected value is displayed with a green background.
To save, tap the button
.
The setup value is saved.
To exit, tap the button
.
o The parameter selection display is displayed again.
Figure 54 – Selection of the desired sensor
To exit the parameter selection display, tap the button
.
o The main menu with an overview of the parameter groups is displayed again.
To exit the main menu, tap the button
.
o Now the previously selected measured values display mode of the measurement
mode is displayed.
o As sensor type, the selected sensor is displayed in the left bottom area of the
display field of the measurement channel.
Figure 55 – Display of selected sensor type
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63
Sensor Type PTR90?
When connecting the following PENNINGVAC sensors, then during first-time
commissioning PTR90? is displayed as the sensor type in the left bottom area of the display
field for the measurement channel:
PTR82N
PTR90
PTR90N
Figure 56 – Display of sensor type PTR90?
To specify the connected sensor proceed as follows:
Press in the measurement mode the touchscreen surface for approximately 1 second.
o The main menu with an overview of the parameter groups is displayed.
Figure 57 – Opening the main menu
Tap in the main menu on the parameter group of the desired channel.
o The parameters available for this parameter group are displayed.
Figure 58 – Selection of the parameter group
Channel
GA300550402_002_C1 – 10/2016
Tap on the entry window on the right beside the parameter Sensor type to change the
value of this parameter.
o The selection list with different sensor types opens.
Figure 59 – Selection of parameter Sensor Type
To select from the list, use the buttons
and
or enter the value for the desired
sensor directly.
o The in each case selected value is displayed with a green background.
To save, tap the button
.
The setup value is saved.
To exit, tap the button
.
o The parameter selection display is displayed again.
Figure 60 – Selection of desired sensor
To exit the parameter selection display, tap the button
.
o The main menu with an overview of the parameter groups is displayed again.
To exit the main menu, tap the button
.
o Now the previously selected measured values display mode of the measurement
mode is displayed.
o As sensor type, the selected sensor is displayed in the left bottom area of the
display field of the measurement channel.
Figure 61 – Display of selected sensor type
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7.1.1.3 Specifying the Sensor Type for CERAVAC Sensors
When connecting all CERAVAC sensors ( Chapter 3.2 Suitable Sensors, page 15)
through the connections C1, D1 and E1 on the rear of the instrument ( Figure 7, page
26) then during first-time commissioning the status message Range? and as sensor type
CTR? is displayed in the left bottom area of the display field for the measurement channel.
Also when connecting the following CERAVAC sensors through connections C2, D2 and E2
on the rear of the instrument ( Figure 7, page 26), then during first-time commissioning
the status message Range? and as sensor type CTR? is displayed in the left bottom area
of the display field for the measurement channel:
CTR90-0.1Torr
CTR90-1Torr
CTR90-10Torr
CTR90-20Torr
CTR90-100Torr
CTR90-1000Torr
CTR91-0.1Torr
CTR91-1Torr
CTR91-10Torr
CTR91-20Torr
CTR91-100Torr
CTR91-1000Torr
Figure 62 – Display of sensor type CTR?
To specify the connected sensor proceed as follows:
Press in the measurement mode the touchscreen surface for approximately 1 second.
o The main menu with an overview of the parameter groups is displayed.
Figure 63 – Opening the main menu
Tap in the main menu on the parameter group of the desired channel.
o The parameters available for this parameter group are displayed.
Figure 64 – Selection of parameter group Channel
GA300550402_002_C1 – 10/2016
Tap on the entry window on the right beside the parameter Sensor type to change the
value of this parameter.
o The selection list with different sensor types opens.
Figure 65 – Selection of parameter Sensor Type
To select from the list, use the buttons
and
or enter the value for the desired
sensor directly.
o The in each case selected value is displayed with a green background.
To save, tap the button
.
The setup value is saved.
To exit, tap the button
.
o The parameter selection display is displayed again.
Figure 66 – Selection of desired sensor
To exit the parameter selection display, tap the button
.
o The main menu with an overview of the parameter groups is displayed again.
To exit the main menu, tap the button
.
o Now the previously selected measured values display mode of the measurement
mode is displayed.
o As sensor type, the selected sensor is displayed in the left bottom area of the
display field of the measurement channel.
Figure 67 – Display of selected sensor type
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67
7.1.2
Sensor Detection (Detection)
Through the parameter Sensor detection (Detection) you may define in which way the
sensor type shall be detected.
Auto
Automatic. The detection is effected automatically through the identification resistor of the
connected sensor.
Manual
Manual. The type of sensor is entered manually.
7.1.3
Sensor Name
The parameter Sensor name allows you to freely enter a term describing the connected
sensor in greater detail or the place where it has been installed.
The length of the sensor name is limited to 10 characters.
The sensor name is displayed in the middle bottom area of the display field for the
measurement channel ( Figure 15, C, page 31).
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7.1.4
Measured Values Filter (Filter)
The measured values filter (Filter) allows you to better evaluate noisy signals or signals
suffering from interference. This filter is applied to the displayed values, the switching
functions and the analogue outputs.
You may set up the measured values filter to the following values:
Fast
The GRAPHIX controller will respond
rapidly to signal fluctuations. In this mode,
it will be relatively sensitive with respect to
any signal interferences.
Figure 68 – Measured values filter Fast (example)
Medium
This is the default setting. It offers a good
compromise between speed of response
and interference immunity.
Figure 69 – Measured values filter Medium (example)
Slow
The GRAPHIX controller responds slowly
to signal fluctuations. Because of this, it is
less sensitive with respect to any signal
interferences. This setting is recommended
for precise comparative measurements.
Figure 70 – Measured values filter Slow (example)
NOTICE:
This parameter has an effect only to analogue input signals. It is available
therefore only for analogue sensors, which are operated through the
connections C1, D1 and E1 on the rear of the instrument ( Figure 7, page
26).
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7.1.5
Gas Typ Correction (Gas Type)
The sensors are normally calibrated for a measurement in nitrogen or air. With the aid of the
parameter Gas type correction (Gas Type), you may set up the measurement channel for
other types of gas.
N2
Nitrogen, no correction is necessary. No status indicator will come on.
Ar
Argon. The pressure is converted with the aid of the correction factor for argon (0.830). The
status indicator
will come on in the display field of the selected channel.
H2
Hydrogen. The pressure is converted with the aid of the correction factor for hydrogen
(2.440). The status indicator
will come on in the display field of the selected channel.
Cor
Other gases. The pressure is converted with the aid of a variable correction factor. The
status indicator
will come on in the display field of the selected channel. Entering a gas
type correction factor through the parameter Gas type correction factor (Correction factor)
is possible.
7.1.6
Gas Type Correction Factor (Correction Factor)
This parameter can only be changed when the gas type correction has been set to Cor (
Chapter 7.1.5 Gas Typ Correction (Gas Type), page 69).
You may set up the gas type correction factor (correction factor) for a sensor in the range of
0.10 to 1.00 to 10.0. The setting of 1.00 will provide the uncorrected measured value.
NOTICE:
With IONIVAC sensors of ITR90 series and ITR200 series as well as
PENNINGVAC sensors of the type PTR82N, PTR90 and PTR90N the gas
type correction is only for p < 1·10-2 mbar effectively, with THERMOVAC
sensors of TTR100 series and TTR101 series only for p < 1 mbar.
7.1.7
Emission Switching On and Switching Off Type (Emission)
This parameter defines the rules according to which the emission is switched on.
Display
Explanation
Auto
Automatic. The emission is switched on and off by
the sensor electronics.
Manual
Manual. The emission is switched on and off
manually.
Table 18 – Values for the parameter Emission
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7.1.8
Filament Selection (Filament)
This parameter defines the rules according to which the active filament is selected.
Display
Explanation
Auto
The sensor electronics selects one of the two
filaments in alternation.
Filament 1
Filament 1 is active.
Filament 2
Filament 2 is active.
Table 19 – Values for the parameter Filament
NOTICE:
Filament selection is only possible for IONIVAC sensors of ITR200 series.
7.1.9
Offset On / Off
With enabled offset correction, a saved offset value is subtracted from the current measured
value. This permits a relative measurement with reference to a reference pressure. The
offset correction affects the displayed values, the RS232 output, the chart recorder output
and the switching functions. However, the analogue outputs are not influenced.
Off
The offset correction is switched off. This status indicator
goes out in the display field of
the selected channel.
On
The offset correction is switched on. The status indicator
comes on in the display field of
the selected channel.
7.1.10
Offset Value
You may set up the offset value for a sensor. The adjustment range will be sensor
dependent. A setting of 0.000 supplies the uncorrected measured value.
As soon as setting up an offset value > 0.000, the offset correction will be switched on. The
status indicator
comes on in the display field of the selected channel.
7.1.11
Take Current Pressure
By operating the button Set, the current pressure value is carried over as the offset value.
The offset correction facility is switched on. The status indicator
comes on in the display
field of the selected channel.
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7.1.12
Zero Alignment (Zero Adjust)
Pressing the button Set, aligns the zero level of the connected sensor.
NOTICE:
Switch the offset correction facility off before setting up the zero level for a
sensor.
NOTICE:
To utilise this function, CERAVAC sensors of CTR100 series and CTR101
series must be connected using a 15-way SUB-D cable connected to the
connections C2, D2 or E2 at the rear of the instrument ( Figure 7, page
26).
GA300550402_002_C1 – 10/2016
7.1.13
Sensor Switch-on Type (Sensor On)
This parameter defines how the sensor is switched on.
You can set the switch-on type to the following values:
Manual
The sensor can be switched on in the channel menu by tapping the button
.
External
Externally via optocoupler (static signal +12 – +24 VDC)
Hot
Warm start. The sensor is switched on automatically upon switching on the instrument. After
a power failure, the measurement is started automatically.
Channel 1
Through measurement channel 1. With the aid of the then following parameter Sensor
switch-on value you may define a switch-on value. When the pressure in measurement
channel 1 drops below the switch on value, the sensor is switched on.
Channel 2
Through measurement channel 2. With the aid of the then following parameter Sensor
switch-on value you may define a switch-on value. When the pressure in measurement
channel 2 drops below the switch-on value, the sensor is switched on. Selecting
measurement channel 2 is only available for GRAPHIX TWO and THREE.
Channel 3
Through measurement channel 3. With the aid of the then following parameter Sensor
switch-on value you may define a switch-on value. When the pressure in measurement
channel 3 drops below the switch-on value, the sensor is switched on. Measurement
channel 3 is only available for GRAPHIX THREE.
7.1.14
Sensor Switch-on Value (T-On)
This parameter can only be changed provided the sensor switch-on type has been set for
Channel 1, Channel 2 or Channel 3 ( Chapter 7.1.13 Sensor Switch-on Type (Sensor
On), page 72).
With the aid of parameter Sensor switch-on value T-On, you may define a switch-on value
for the sensor. When the pressure in the affected measurement channel drops below the
switch-on value, the sensor is switched on.
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7.1.15
Sensor Switch-off Type (Sensor Off)
This parameter defines how the sensor is switched off. You can set the switch-off type to
the following values:
Manual
The sensor can be switched off in the channel menu by tapping the button
.
External
Externally via optocoupler (static signal +12 – +24 VDC)
Self
Self-monitoring. With the aid of the then following parameter Sensor switch-off value you
may define a switch-off value. When the pressure at the sensor exceeds the switch-off value
then the sensor is switched off.
Channel 1
Through measurement channel 1. With the aid of the then following parameter Sensor
switch-off value you may define a switch-off value. When the pressure in measurement
channel 1 exceeds the switch-off value, then the sensor is switched off.
Channel 2
Through measurement channel 2. With the aid of the then following parameter Sensor
switch-off value you may define a switch-off value. When the pressure in measurement
channel 2 exceeds the switch-of value, then the sensor is switched off. Selecting
measurement channel 2 is only available for GRAPHIX TWO and THREE.
Channel 3
Through measurement channel 3. With the aid of the then following parameter Sensor
switch-off value you may define a switch-off value. When the pressure in measurement
channel 3 exceeds the switch-of value, then the sensor is switched off. Selecting
measurement channel 3 is only possible for GRAPHIX THREE.
7.1.16
Sensor Switch-off Value (T-Off)
This parameter can only be changed provided the sensor switch-off type has been set for
Channel 1, Channel 2 or Channel 3 ( Chapter 7.1.15 Sensor Switch-off Type (Sensor
Off), page 73).
With the aid of parameter Sensor switch-off value T-Off you may define a switch-off value
for this sensor. When the pressure in the affected measurement channel exceeds the
switch-off value, the sensor is switched off.
7.1.17
Entering the Characteristics for Further Sensors
The GRAPHIX controller offers the possibility of connecting besides the sensors detailed in
“Chapter 3.2 Suitable Sensors”, page 15 further sensors by entering a variable analogue
logarithmic or analogue linear characteristic.
This parameter can only be changed when sensor detection has been set to Manual (
Chapter 7.1.2 Sensor Detection (Detection), page 67).
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7.1.17.1 Curve Type
First, define through the parameter Type of characteristic, the specific type of characteristic
needed.
Display
Explanation
Analog Log
Characteristic of the sensor is analogue logarithmic.
Analog Lin
Characteristic of the sensor is analogue linear.
Table 20 – Values for the parameter Type of Characteristic
7.1.17.2 Characteristic Curve (U-Start, p-Start, U-End, p-End, F-Start, F-End)
You configure the sensor characteristic by entering the following data for the characteristic
specifying the relationship between voltage (data in V) and pressure (pressure value in the
current display unit). In addition, the error limits are defined.
U-Start
Voltage at the lower end of the characteristic. This voltage value defines the start point of
the characteristic at the lower end.
p-Start
Pressure at the lower end of the characteristic. This pressure value defines the start point
of the characteristic at the lower end.
U-End
Voltage at the upper end of the characteristic. This voltage value defines the endpoint of the
characteristic at the upper end.
p-End
Pressure at the upper end of the characteristic. This pressure value defines the endpoint of
the characteristic at the upper end.
F-Start
Error voltage at the lower end of the characteristic. When the voltage drops below the
voltage defined here, the error signal for the sensor is output.
F-End
Error voltage at the upper end of the characteristic. When the voltage exceeds the voltage
defined here, the error signal for this sensor is output.
Figure 71 – Configuration for the specific
characteristics of further sensors
p
Pressure [display unit]
U
Voltage [V]
U-Start
Voltage lower characteristic end
p-Start
Pressure lower characteristic end
U-End
Voltage upper characteristic end
p-End
Pressure upper characteristic end
F-Start
Error voltage lower characteristic end
F-End
Error voltage upper characteristic end
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75
7.2
Setpoints
In this parameter group, you may configure the switching functions. The GRAPHIX controller
is equipped with the following switching function parameters:
SP1-On to SP6-On
SP1-Off to SP6-Off
7.2.1
Basic Terms
Switching Functions
The GRAPHIX controller provides a total of six switching function relays, which may be freely
assigned to the three measurement channels maximum. The relays switch over depending
on the measured pressure. The contacts of the relays are floating and may be used through
the connection marked Relay Output for switching purposes ( Chapter 5.3.5 Relay
Output, page 28).
Threshold Values
The switching action of the individual relays is defined through two parameters in each case:
the lower threshold value and the upper threshold value of the switching function.
Lower Threshold Value SPx-On
The lower threshold value controls switching on of the related switching function. When the
pressure drops below the lower threshold value, the relay switches on. The common contact
of the relay is then connected to the normally open contact.
Upper Threshold Value SPx-Off
The upper threshold value controls switching off of the related switching function. When the
pressure exceeds the upper threshold value, the relay switches off. The common contact of
the relay is then connected to the normally closed contact.
Hysteresis
In the pressure range between the two threshold values, the current relay status is
maintained. Within this range, the relay will not switch over and the relay status will depend
on the previous switching function ( Figure 72, page 75).
Figure 72 – Response of the switching function in
case of pressure changes
p
Pressure]
t
Time
NO
Normally open contact
COM
Common contact
NC
Normally closed contact
The range between the lower and the upper threshold value produces a certain degree of
hysteresis between switching on and switching off of the relay. Hysteresis prevents rapid
cycling between on and off when the pressure is close to a switching threshold.
GA300550402_002_C1 – 10/2016
7.2.2
Configuring the Switching Functions
Proceed as follows to configure the switching thresholds:
In the measurement mode, touch the touchscreen surface for approximately 1 second.
o You will now see the main menu with an overview of the parameter groups.
Figure 73 – Opening the main menu
Tap in the main menu on the parameter group Setpoints.
Figure 74 – Selection of parameter group Setpoints
Tap on the entry window on the right beside the parameter SP1 – SP6, in order to
assign the corresponding switching threshold to a channel.
o The selection list for the channel assignments opens.
Figure 75 – Selection of the parameter Channel
To select from the list, use the buttons
and
or directly enter the value for the
desired sensor.
o The in each case selected value is displayed with a green background..
To save, tap the button
.
The setup value is saved.
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77
Figure 76 – Selection of the desired channel
To accept, tap the button
.
o Now the parameter selection display is displayed again.
o In the entry windows for the parameters SP-ON and SP-OFF automatically the
smallest possible values for these parameters are displayed corresponding to the
connected sensor.
Tap on the entry window in order to configure the values for the parameters SP-ON
and SP-OFF according to your requirements.
o The window for entering the values for the switching thresholds opens.
Figure 77 – Selection for parameter SP-On / SP-
Off
Enter the value by way of numbers and characters.
o The entered value is displayed in the upper area of the display field.
To delete the entire value tap the button CLR.
o The displayed value is deleted.
To delete the last character, which was entered, tap the button DEL.
o The last character is deleted.
To save and accept, tap the button OK.
o The set up value is saved.
o The parameter selection menu is displayed again.
To exit without saving, tap the button ESC.
o The initially set up value is retained.
o The parameter selection menu is displayed again.
GA300550402_002_C1 – 10/2016
Figure 78 – Selection of the switching threshold
value
To exit the parameter selection menu, tap the button
.
o The main menu with an overview of the parameter groups is displayed again.
To exit the main menu, tap the button
.
o You are now returned to the previously selected measured value display type of the
measurement mode.
o The configured switching threshold is displayed in the left at the top of the display
field for the in each case assigned measurement channel.
Figure 79 – Display switching threshold
NOTICE:
In case of a sensor fault or a connection fault between sensor and GRAPHIX
controller, the switching thresholds assigned to the sensor, respectively
channel are disabled. The pressure values for the parameters SP-On and SP-
Off persist in the instrument’s memory.
When reassigning these switching thresholds to a channel, the saved values
for the parameters SP-On and SP-Off are automatically taken over provided
these are within the adjustment range for the type of sensor connected to the
channel. Otherwise values are proposed which match the adjustment range
of the sensor type.
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7.2.3
Adjustment Range
The lower and the upper threshold value may be selected depending on the sensor. The
possible entry range ( Table 21 to Table 28, page 79 to 81) results automatically
through the connected sensor. Hysteresis amounts to at least 10% of the lower threshold
value for sensors with a logarithmic characteristic and 0.1% of the FS for sensors with a
linear characteristic.
Sensor type
Lower threshold value
[Data in mbar]
Upper threshold value
[Data in mbar]
TTR81N
5.50e-04
9.00e+02
TTR90
5.50e-04
9.00e+02
TTR91
5.50e-04
9.00e+02
TTR91N
5.50e-04
9.00e+02
TTR96
5.50e-04
9.00e+02
TTR96N
5.50e-04
9.00e+02
TTR211
5.50e-04
9.00e+02
TTR216
5.50e-04
9.00e+02
TTR911
5.50e-04
9.00e+02
TTR911N
5.50e-04
9.00e+02
TTR911N (RS232)
5,50e-04
9,00e+02
TTR916
5.50e-04
9.00e+02
TTR916N
5.50e-04
9.00e+02
Table 21 – Adjustment range for the threshold value of THERMOVAC sensors
Sensor type
Lower threshold value
[Data in mbar]
Upper threshold value
[Data in mbar]
TTR100
5.50e-04
1.35e+03
TTR101
5.50e-04
1.35e+03
TTR101N
5.50e-04
1.35e+03
TTR101N (RS232)
5,50e-04
1,35e+03
TTR200N (RS232)
5,50e-04
1,35e+03
Table 22 – Adjustment range for the threshold value of THERMOVAC sensors (combination sensors)
Sensor type
Lower threshold value
[Data in mbar]
Upper threshold value
[Data in mbar]
ITR90/N
5.50e-10
9,00e+02
ITR200/N
5.50e-10
9,00e+02
Table 23 – Adjustment range for the threshold value of IONIVAC sensors (combination sensors)
GA300550402_002_C1 – 10/2016
Sensor type
Lower threshold value
[Data in mbar]
Upper threshold value
[Data in mbar]
PTR81N
1.10e-09
9.00e-03
PTR225
1.10e-09
9.00e-03
PTR225N
1.10e-09
9.00e-03
PTR225N (RS232)
1,10e-09
9,00e-03
PTR237
1.10e-09
9.00e-03
PTR237N
1.10e-09
9.00e-03
Table 24 – Adjustment range for the threshold value of PENNINGVAC sensors
Sensor type
Lower threshold value
[Data in mbar]
Upper threshold value
[Data in mbar]
PTR82N
1.10e-08
9.00e+02
PTR90
5.50e-09
9.00e+02
PTR90N
5.50e-09
9.00e+02
PTR90N (RS232)
5,50e-09
9,00e+02
PTR200N (RS232)
5,50e-09
9,00e+02
Table 25 – Adjustment range for the threshold value of PENNINGVAC sensors (combination sensors)
Sensor type
Lower threshold value
[Data in mbar]
Upper threshold value
[Data in mbar]
CTR90-1000
CTR91-1000
CTR100/N-1000
CTR101/N-1000
1.300e-01
1.320e+03
CTR91-100
CTR91-100
CTR100/N-100
CTR101/N-100
1.300e-02
1.320e+02
CTR90-20
CTR91-20
CTR100/N-20
CTR101/N-20
2.700e-03
2.640e+01
CTR90-10
CTR91-10
CTR100/N-10
CTR101/N-10
1.300e-03
1.320e+01
CTR90-1
CTR91-1
CTR100/N-1
CTR101/N-1
1.300e-04
1.320e+00
CTR90-0.1
CTR91-0.1
CTR100/N-0.1
CTR101/N-0.1
1.300e-05
1.320e-01
Table 26 – Adjustment range for the threshold value of CERAVAC sensors
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81
Sensor type
Lower threshold value
[Data in mbar]
Upper threshold value
[Data in mbar]
DU200
2.00e-01
1.98e+02
DU201
2.00e-01
1.98e+02
DU2000
2.00e+00
1.98e+03
DU2001
2.00e+00
1.98e+03
DU2001 rel.
-9.00e+02
9.90e+02
Table 27 – Adjustment range for the threshold value of DU sensors
Sensor type
Lower threshold value
[Data in mbar]
Upper threshold value
[Data in mbar]
CUSTOM
1.00e±xx
1.00e±xx
Table 28 – Adjustment range for the threshold value of further sensors
CAUTION:
Entering a value outside the input range will give rise to an error message.
7.3
System
Through the parameters of this parameter group you may generally configure your
instrument. The parameters apply to all measurement channels.
7.3.1
Displayed Unit of Measurement (Unit)
This parameter defines the unit of measurement for displayed pressure values, threshold
values etc.
Display
Explanation
mbar
Unit of measurement mbar
Torr
Unit of measurement Torr
Pascal
Unit of measurement Pascal
psi
Unit of measurement psi
Micron
Unit of measurement Micron
Table 29 – Values for the parameter Unit
The unit of measurement is in each case displayed in the right upper field of the display field
for the meas. channel directly after the measured value ( Figure 15, E, page 31).
GA300550402_002_C1 – 10/2016
7.3.2
Key Tone
Through this parameter you define whether or not an audible signal shall be output when
operating a button.
Display
Explanation
Off
Key tone Off
On
Key tone On
Table 30 – Values for the parameter Key Tone
7.3.3
Error Relay
With the aid of this parameter you define for which error type the error signal relay shall
switch. Select the required relay output: no separate labelling = N.O. (Normally Open) or
N.C. (Normally Closed).
Display
Explanation
All
All errors
Only Device
Device errors only
Channel 1 & Device
Sensor at Channel 1 and device error
Channel 2 & Device
Sensor at Channel 2 and device error
(for GRAPHIX TWO and THREE only)
Channel 3 & Device
Sensor at Channel 3 and device error
(for GRAPHIX THREE only)
All N.C.
All errors
Only Device N.C.
Device errors only
Channel 1 & Device N.C.
Sensor at Channel 1 and device error
Channel 2 & Device N.C.
Sensor at Channel 2 and device error
(for GRAPHIX TWO and THREE only)
Channel 3 & Device N.C.
Sensor at Channel 3 and device error
(for GRAPHIX THREE only)
Table 31 – Values for the parameter Error Relay
7.3.4
Baud Rate (Data Rate)
The baud rate defines the communication speed for the serial interface.
Display
Explanation
9600
9600 Baud
19200
19200 Baud
38400
38400 Baud
Table 32 – Values for the parameter Data Rate
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7.3.5
Com Port
Selection of interface type.
Display
Explanation
RS232
Com port RS232
RS485
Com port RS485
Center
Com port compatible with RS232 interface of the
multi-channel measuring instruments CENTER TWO
and THREE
Table 33 – Values for the parameter Com Port
NOTICE: Utilising the Com port Center
When using the Com port Centre please observe the information given in
Chapter 6 Computer Interface, page 57 in the Operating Instructions GA
09.035/7.01 of the multi-channel measuring instruments CENTER TWO and
THREE.
7.3.6
Address
This parameter can only be changed when the parameter Interface has been set to RS485
( Chapter 7.3.5 Com Port, page 83).
You may assign any address within the range from 1 to 126 for the RS485 Interface.
7.3.7
Clock (Time)
Set the time in the format hh:mm:ss (h = hour, m = minute, s = second ).
7.3.8
Date
Set the date in the format YY:MM:DD (YY = year, M = month, D = day).
7.3.9
System Information
In this window you receive important information to the device. The following system
information are shown to you:
Description
Part Number
Serial Number
Version
NOTICE:
Use these information, if in case of service the information of the label is not
available.
GA300550402_002_C1 – 10/2016
7.4
Display
7.4.1
Display Mode
This parameter controls the way in which data is displayed.
Display
Explanation
Normal
Measured values and status display
Big
Large display of measured data
Chart
Graph of the pressure history
Leak Test
Leak rate determination
Speedo Channel 1
Speedometer-shaped display of channel 1 pressure
Speedo Channel 2
Speedometer-shaped display of channel 2 pressure
Speedo Channel 3
Speedometer-shaped display of channel 3 pressure
Table 34 – Values for the parameter Display mode
7.4.2
Resolution
This parameter controls the resolution for the measured values display.
Display
Explanation
Standard
Default resolution
High
High resolution
Table 35 – Values for the parameter Display digits
7.4.3
Brightness
This parameter controls the brightness of the display.
Display
Explanation
Low
Low display brightness
Medium
Medium display brightness
High
High display brightness
Table 36 – Values for the parameter Brightness
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7.5
Logging
Through this parameter group you can configure the rules controlling the way in which data
are logged. For this, a suitable storage device must be connected to the USB interface (
Figure 13, B, page 30). The memory requirements depend on the specified interval and the
file size. For a logging interval of 1 s and a file size of 24 h the memory requirements are
approx. 4 MB. In this case you can record the data of 250 days with a storage device of 1
GB.
7.5.1
Interval (s)
This parameter defines the data logging interval.
The value is here entered in seconds. You may set up a data recording interval in the range
between 1 – 900 seconds. The default setting is one second.
7.5.2
File Size (h)
This parameter restricts the length of the recorded data per created file.
The value is here entered in hours. You may set up a data recording length in the range
between 1 – 999 hours. The default setting is 24 hours.
NOTICE:
After reaching the value entered for this parameter, a new file is created
automatically which will then hold data for the given time span.
7.5.3
Enable / Disable Logging
Start to record data by tapping the button Start.
o The directory DATALOG is created on the storage device connected to the USB
interface.
o Measured values and important data relating to the recording of data are saved in a
file having the format YYYYMMDD_hhmmss_snXXXXXX.txt
(Y = year, M = month, D = day, h = hour, m = minute, s = second,
snXXXXXX = 6-digit serial number) to the USB memory in the directory
DATALOG.
Stop the recording of data by tapping the button Stop.
The file created, respectively saved to the USB storage device will then be available for
further data processing.
Figure 80 – Sample file of recorded data
GA300550402_002_C1 – 10/2016
7.6
Recorder
The chart recorder output is a programmable analogue output. The voltage at the chart
recorder output is a function of the pressure at the sensor. The relationship between
pressure and voltage is termed output characteristic. It may be selected through the
parameter Analogue mode.
7.6.1
Analog Mode
Through the parameter Analog Mode you can define at which pressure value the maximum
voltage shall be reached. In the following, the available output characteristics are described.
Here information is provided in each case how the pressure p (in mbar) is calculated from
the output voltage U (in Volt).
Note here that a difference is made between a logarithmic and linear output characteristic.
Using a logarithmic characteristic is preferred when the measurement range extends over
many decades of pressure. In this case, the pressure value is logarithmized and thereafter
scaled suitably. Using a linear characteristic is preferred when the measurement range
extends only over a few pressure decades. In this case, the voltage at the chart recorder
output is proportional to the pressure value.
Log
Logarithmic representation of the entire measurement range.
Sensor
Pressure [mbar]
TTR
p = 10^[U/(10/7) – 4]
TTR100
p = 10^[U/(10/7) – 4]
ITR
p = 10^[U/(10/12) – 9]
PTR
p = 10^[U/(10/7) – 9]
PTR90
p = 10^[U/(10/12) – 9]
CTR
p = 10^[U/(10/4) – 4] * FS
DU
p = 10^[U/(10/4) – 4] * FS
Table 37 – Chart recorder output – Calculation formula for the parameter Log
Log A
Logarithmic representation of the entire measurement range (compatible to A-series).
Sensor
Pressure [mbar]
TTR
p = 10^[U/(10/6) – 3]
TTR100
p = 10^[U/(10/7) – 4]
ITR90
p = 10^[(U – 7.75)/0.75]
ITR200
p = 10^[U – 8]
PTR
p = 10^[U/(9/7) – 9 – 7/9]
PTR90
p = 10^[U/(10/11) – 8]
CTR
p = 10^[U/(10/4) – 4] * FS
DU
p = 10^[U/(10/4) – 4] * FS
Table 38 – Chart recorder output – Calculation formula for the parameter Log A
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Log -6
Logarithmic representation of a partial measurement range (2.5 V/decade).
Sensor
Pressure [mbar]
All sensor types
p = 10^[U/(10/4) – 10]
Table 39 – Chart recorder output – Calculation formula for the parameter Log -6
Log -3
Logarithmic representation of a partial measurement range (2.5 V/decade).
Sensor
Pressure [mbar]
All sensor types
p = 10^[U/(10/4) – 7]
Table 40 – Chart recorder output – Calculation formula for the parameter Log -3
Log +0
Logarithmic representation of a partial measurement range (2.5 V/decade).
Sensor
Pressure [mbar]
All sensor types
p = 10^[U/(10/4) – 4]
Table 41 – Chart recorder output – Calculation formula for the parameter Log +0
Log +3
Logarithmic representation of a partial measurement range (2.5 V/decade).
Sensor
Pressure [mbar]
All sensor types
p = 10^[U/(10/4) – 1]
Table 42 – Chart recorder output – Calculation formula for the parameter Log +3
LogC1
Logarithmic representation for the following combination:
TTR connected to measurement channel 1
PTR connected to measurement channel 2
Sensor
Pressure [mbar]
TTR + PTR
p = 10^[U/(10/12) – 9]
Table 43 – Chart recorder output – Calculation formula for the parameter LogC1
LogC2
Logarithmic representation for the following combination:
CTR or DU connected to measurement channel 1
CTR or DU connected to measurement channel 2
This output characteristic is only preferred when the sensors offer different measurement
ranges. The total measurement range supplied by the combination is displayed in the range
of 0 to 10 V logarithmically. This parameter can only be selected for GRAPHIX TWO and
THREE.
GA300550402_002_C1 – 10/2016
LogC3
Logarithmic representation for the following combination:
CTR or DU connected to measurement channel 1
CTR or DU connected to measurement channel 2
CTR or DU connected to measurement channel 3
This output characteristic is only preferred when the sensors offer different measurement
ranges. The total measurement range supplied by the combination is displayed in the range
of 0 to 10 V logarithmically. This parameter can only be selected for GRAPHIX THREE.
NOTICE:
The three sensors need to be sorted as to the end value of their measurement
range. The sorting sequence may be either increasing or decreasing.
Lin -9
Linear representation, U = 10 V corresponds to p = 10-10 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 10-10
Table 44 – Chart recorder output – Calculation formula for the parameter Lin -10
Lin -9
Linear representation, U = 10 V corresponds to p = 10-9 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 10-9
Table 45 – Chart recorder output – Calculation formula for the parameter Lin -9
Lin -8
Linear representation, U = 10 V corresponds to p = 10-8 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 10-8
Table 46 – Chart recorder output – Calculation formula for the parameter Lin -8
Lin -7
Linear representation, U = 10 V corresponds to p = 10-7 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 10-7
Table 47 – Chart recorder output – Calculation formula for the parameter Lin -7
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Lin -6
Linear representation, U = 10 V corresponds to p = 10-6 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 10-6
Table 48 – Chart recorder output – Calculation formula for the parameter Lin -6
Lin -5
Linear representation, U = 10 V corresponds to p = 10-5 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 10-5
Table 49 – Chart recorder output – Calculation formula for the parameter Lin -5
Lin -4
Linear representation, U = 10 V corresponds to p = 10-4 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 10-4
Table 50 – Chart recorder output – Calculation formula for the parameter Lin -4
Lin -3
Linear representation, U = 10 V corresponds to p = 10-3 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 10-3
Table 51 – Chart recorder output – Calculation formula for the parameter Lin -3
Lin -2
Linear representation, U = 10 V corresponds to p = 10-2 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 10-2
Table 52 – Chart recorder output – Calculation formula for the parameter Lin -2
Lin -1
Linear representation, U = 10 V corresponds to p = 10-1 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 10-1
Table 53 – Chart recorder output – Calculation formula for the parameter Lin -1
GA300550402_002_C1 – 10/2016
Lin +0
Linear representation, U = 10 V corresponds to p = 100 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 100
Table 54 – Chart recorder output – Calculation formula for the parameter Lin +0
Lin +1
Linear representation, U = 10 V corresponds to p = 101 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 101
Table 55 – Chart recorder output – Calculation formula for the parameter Lin +1
Lin +2
Linear representation, U = 10 V corresponds to p = 102 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 102
Table 56 – Chart recorder output – Calculation formula for the parameter Lin +2
Lin +3
Linear representation, U = 10 V corresponds to p = 103 mbar.
Sensor
Pressure [mbar]
All sensor types
p = U/10 * 103
Table 57 – Chart recorder output – Calculation formula for the parameter Lin +3
IM221
Logarithmic representation IM221 Controller (1 V / decade). U = 8 V corresponds to
p = 10-2 mbar.
Controller
Pressure [mbar]
IM221
p = 10^[U – 10]
Table 58 – Chart recorder output – Calculation formula for the parameter IM221
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LogC4
Logarithmic representation over 12 decades (0.83 V/decade) for the following combination:
TTR100 or TTR101 connected to measurement channel 1
ITR200 connected to measurement channel 2
Sensor
Pressure [mbar]
TTR100 + ITR200
p = 10^[U/(10/12) – 9]
TTR101 + ITR200
p = 10^[U/(10/12) – 9]
Table 59 – Chart recorder output – Calculation formula for the parameter LogC4
U = 10 V corresponds to p = 1000 mbar. The switchover level between the sensors is at 10-
2 mbar. This parameter can only be selected for GRAPHIX TWO and THREE.
PM411
Non-linear output characteristic as for the PM411 plug-in board.
7.6.2
Channel
Through this parameter you define which measurement channel shall be assigned to the
chart recorder output.
Display
Explanation
1
Assigned to measurement channel 1
2
Assigned to measurement channel 2
(GRAPHIX TWO and THREE only)
3
Assigned to measurement channel 3
(GRAPHIX THREE only)
Table 60 – Values for the parameter Channel
GA300550402_002_C1 – 10/2016
7.7
Chart
7.7.1
Interval (s)
This parameter defines the interval for the display of pressure values in the measured values
display mode Chart.
The value here is entered in seconds. You may set up the interval for recording of data within
the range from 1 – 900 seconds. The default setting is one second.
Table 61, page 92 gives an overview for temporally maximally possible representation within
the visible chart range as a function of interval and scaling.
Scale
Interval [s]
1:1
1:2
1:4
1:8
1
00:04:48
00:09:36
00:19:12
00:38:24
30
02:24:00
04:48:00
09:36:00
19:12:00
60
04:48:00
09:36:00
19:12:00
38:24:00
120
09:36:00
19:12:00
38:24:00
76:48:00
300
24:00:00
48:00:00
96:00:00
192:00:00
600
48:00:00
96:00:00
192:00:00
384:00:00
900
72:00:00
144:00:00
288:00:00
576:00:00
Table 61 – Overview for display duration [hh:mm:ss]
7.7.2
Channel 1
Through this parameter you define whether the measured values of measurement channel
1 shall be displayed in the chart.
Display
Explanation
Off
The measured values of measurement channel 1
are not shown in the chart.
On
The measured values of measurement channel 1
are shown in the chart.
Table 62 – Values for the parameter Channel 1
7.7.3
Channel 2
Through this parameter you define whether the measured values of measurement channel
2 shall be displayed in the chart. Selecting measurement channel 2 is available only for
GRAPHIX TWO and THREE.
Display
Explanation
Off
The measured values of measurement channel 2
are not shown in the chart.
On
The measured values of measurement channel 2
are shown in the chart.
Table 63 – Values for the parameter Channel 2
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7.7.4
Channel 3
Through this parameter you define whether the measured values of measurement channel
3 shall be displayed in the chart. Selecting measurement channel 3 is available only for
GRAPHIX THREE.
Display
Explanation
Off
The measured values of measurement channel 3
are not shown in the chart.
On
The measured values of measurement channel 3
are shown in the chart.
Table 64 – Values for the parameter Channel 3
GA300550402_002_C1 – 10/2016
7.8
Leak Test
The leak test function integrated into the GRAPHIX Controller operates on the principle of
pressure rise method over a known time interval at a known volume.
The leak rate QL in mbar · l
s
calculated as follows: QL = ∆p · V
∆t
Where
Δp is the pressure rise, the difference between the pressure at time te = end of the time
interval and the pressure at the beginning t0
V is the volume
Δt is the time interval te – t0
The device calculates the leak rate using this function after each time interval and displays
the value.
Examble:
Once the vacuum vessel with a volume of 20 l has been isolated from the pump, the pressure
in the apparatus rises from 30 mbar to 40 mbar during a measuring time of 30 minutes (=
1800 seconds). Thus, in accordance with the above-mentioned equation, the leak rate will
be:
QL= (40 - 30) · 20
1800
= 10 · 20
1800 = 1.1·10-1 mbar · l
s
To evaluate the measurement quality, besides the recently determined value ( Figure
19, B, page 34), the two previously determined values ( Figure 19, C, D, page 34) are
also displayed. If the values are continuously dropping, this can be a hint for a variable
contribution to the leak rate through outgassing which adds to the actual leak rate by a leak
(constant value). The result can be improved by waiting until this variable contribution is
becoming small, compared to the actually sought leak rate.
However, if the values are jumpy and perhaps increasing or even negative, this is an
evidence for a too short time interval.
Further usages for the leak test function emerge:
Principally, with a known test leak you can reversely conduct a volume determination.
For this purpose, enter a volume of 1 l and calculate the volume by division of the known
leak rate by the measured leak rate. For the choice of the time interval the afore-
mentioned applies. It is not considered for volume calculation.
For a test volume known to be sufficiently tight you can document the outgassing
behaviour. This can be very helpful, especially for the examination of residual humidity.
When utilising pressure measuring principles with high gas type dependence (e.g.
THERMOVAC sensors in the range > 5 mbar), besides an integral leak test you can also
carry out a local leak detection – with limited possibilities – by external sprinkling of the
suspect spot. However, for this, a certain amount of experience is required.
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Principally, a leak test in the overpressure range would also be possible with the pressure
rise method. The leak rate would then be negative, since the leakage is leaving the test
volume. Because of the principal temperature dependence of the test pressure large
measuring errors can thereby arise, which require an experienced operator, so that all in
all the pressure rise method in the vacuum range is more recommendable.
7.8.1
Interval (min)
Through this parameter you define the duration of the leak test.
The value is entered in minutes. You may set up the interval for leak test within the range
from 1 – 1999 minutes. The default setting is 10 minutes.
7.8.2
Volume (l)
Enter the volume of the test vessel.
The value is entered in liter. You may set up the volume within the range from 0.1 – 100000.0
liter. The default setting is 1.0 liter.
7.8.3
Channel
Through this parameter you define which channel shall be used for the leak test.
Display
Explanation
1
Assigned to measurement channel 1
2
Assigned to measurement channel 2
(GRAPHIX TWO and THREE only)
3
Assigned to measurement channel 3
(GRAPHIX THREE only)
Table 65 – Values for the parameter Channel
GA300550402_002_C1 – 10/2016
7.9
Menu Language (Language)
Always the currently selected menu language is indicated through a symbolic flag typical for
the specific language ( Chapter 6.1.4.1 Symbols for the Controls, page 36).
The desired menu language is selected by tapping the button showing the symbolic flag
typical for the specific language.
Display
Explanation
Menu language EN (English)
Menu language DE (German)
Menu language CN (Chinese)
Menu language FR (French)
Menu language IT (Italian)
Menu language JP (Japanese)
Menu language ES (Spanish)
Menu language KN (Korean)
Menu language RU (Russian)
Menu language PL (Polish)
Menu language TR (Turkish)
Table 66 – Values for the parameter Language
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8.
Computer Interface
8.1
Basic Information
8.1.1
Connection
The GRAPHIX controller is capable of communicating with a computer via a serial interface.
Either a RS232 or an RS485 interface is available.
The pin assignment of the corresponding connection socket and the necessary connection
cable are described in Chapter 5.3.7 Interfaces RS232/RS485 (RS232/RS485), page 29.
8.1.2
Nomenclature
To describe the computer interface, the following terms and symbolic notations are used.
Terms
Explanation
Send
Data transfer from the host to the device
Receive
Data transfer from the device to the host
Host
Terminal (Computer)
ASCII
American Standard Code for Information
Interchange
Table 67 – Computer interface terms
Terms
Value
Explanation
‘;‘
0x3B
Separating character
EOT
0x04
End character
SI
0x0F
Read detection
SO
0x0E
Write detection
ACK
0x06
Parameter value is accepted
NACK
0x15
Parameter value is not accepted
Table 68 – Control characters of the computer interface
GA300550402_002_C1 – 10/2016
8.2
Communication
8.2.1
Protocol
The following protocol is used for communication:
8 data bits
No parity bit
1 stop bit
The baud rate is selectable ( Chapter 7.3.4 Baud Rate (Data Rate), page 82).
No hardware handshake is used. Messages are transferred by way of ASCII strings. A
semicolon (0x3B) in the string is processed as a separating character. Space characters
(0x20) or tab stop characters (0x09) may be contained in the string. As to communication,
the computer is always the master. The input buffer of the computer must offer a capacity
of at least 512 bytes.
8.2.2
General String Structure
When using the interfaces RS232 or RS485, the send and receive strings differ inasmuch
when using the RS485 interface the respective string is preceded by the address of the
RS485 interface. For the send string, state the address in hexadecimal notation (for example
address 10 = 0A). You may assign an address from the range of 1 to 126.
8.2.2.1 Send String Structure (as seen from the Master)
Read:
Address
RS485
(Only necessary for
RS485!)
Read
(0x0F) [SI]
Parameter
group
Separating
character
Parameter
No.
CRC
[EOT]
Write:
Address
RS485
(Only necessary for
RS485!)
Write
(0x0E) [SO]
Parameter
group
Separating
character
Parameter
No.
Separating
character
Value
Space
character
CRC
[EOT]
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8.2.2.2 Receiving String Structure (as seen from the Master)
Read:
The requested value is readable.
Address
RS485
(Only necessary for
RS485!)
[ACK]
Value
CRC
[EOT]
The requested value is not readable.
Address
RS485
(Only necessary for
RS485!)
[NACK]
Error No. 1
CRC
[EOT]
1 ( Table 69 – Error numbers of receiving string, page 100)
Write:
Value has been successfully written.
Address
RS485
(Only necessary for
RS485!)
[ACK]
CRC
[EOT]
Value has not been written.
Address
RS485
(Only necessary for
RS485!)
[NACK]
Error No. 1
CRC
[EOT]
1 ( Table 69 – Error numbers of receiving string, page 100)
GA300550402_002_C1 – 10/2016
8.2.2.3 Error Number (Receiving String)
Error-No.
Explanation
-6
CRC sum error
-8
Format error
-9
Group not available
-10
Parameter not available for sensor type
-11
Parameter read-only
-12
Parameter value incorrect
-13
Number of parameter values wrong
-14
Value currently not changeable
-15
Parameter generally not available
-16
Error data handling with USB
Table 69 – Error numbers of receiving string
8.2.2.4 Calculation of the Checksum
The checksum (CRC) consists of an ASCII character, the byte value of which results as
follows from the preceding characters of the send or receive string (without address RS485):
CRC = 255 – [(Byte sum of all preceding characters) mod 256]
If this value is lower than 32 (control character of the ASCII code), then 32 must be added.
Example:
Send string ahead of CRC designating the first channel: [SO]1;5;vacuum[space character]
CRC = 255 – [(14+49+59+53+59+118+97+99+117+117+109+32) mod 256]
= 255 – [923 mod 256]
= 255 – 155
= 100
In this case the checksum character is a “d”.
