Technical manual [PDF] (84 pages)
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VT200/220
Weight Indicator
Technical Manual
AND Protocol
Revision 1.00.01 November 2008
Doc # TM-VT200/220-EN
Table of Contents
VT200/220 Technical Manual, Rev 1.00.01
ii
Doc # TM-VT200/220-EN
Table of Contents
TABLE OF CONTENTS ................................................................................II
TABLE OF FIGURES .................................................................................. VI
LEGAL NOTICE ........................................................................................VII
WARRANTY........................................................................................... VIII
SAFETY INSTRUCTIONS ........................................................................... IX
DECLARATION OF CONFORMITY .............................................................. XI
ABOUT THIS DOCUMENT.........................................................................XII
1
TECHNICAL SPECIFICATIONS......................................................... 14
1.1
GENERAL ........................................................................................... 14
1.2
ANALOG INPUT .................................................................................... 15
1.3
ANALOG OUTPUT (OPTIONAL)................................................................... 15
1.4
DIGITAL INPUT .................................................................................... 16
1.5
DIGITAL OUTPUTS ................................................................................ 16
2
INSTALLATION .............................................................................. 17
2.1
SITE REQUIREMENTS ............................................................................. 17
2.2
MOUNTING THE INDICATOR ...................................................................... 17
2.2.1 Desktop Model (Aluminum Enclosure) .................................................. 17
2.2.2 Wall-Mount Model (Stainless Steel Enclosure) ....................................... 18
2.3
CONNECTING LOAD CELLS ....................................................................... 19
2.3.1 Desktop Model (Aluminum Enclosure) .................................................. 19
2.3.2 Wall-Mount Model (Stainless Steel) ..................................................... 20
2.3.3 Load Cell Operating Parameters .......................................................... 20
2.4
SERIAL CONNECTIONS............................................................................ 21
2.4.1 Printer and PC Cables ........................................................................ 21
2.4.2 RS485 Cable Connections .................................................................. 21
2.5
CONNECTING POWER ............................................................................. 22
3
DISPLAY, KEYS AND MENUS........................................................... 23
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3.1
THE DISPLAY ...................................................................................... 23
3.1.1 Status Annunciators .......................................................................... 24
3.1.2 Common Messages Shown on the Display ............................................ 24
3.2
FRONT PANEL KEYS............................................................................... 25
3.2.1 Using Keys to Perform Operations ....................................................... 25
3.2.2 Using Keys to Navigate and Enter Information ...................................... 26
3.2.3 Editing Multiple Digits........................................................................ 26
3.3
THE FUNCTION MENU............................................................................. 26
3.3.1 Using the Function Menu.................................................................... 27
3.3.2 Function Summary............................................................................ 27
3.4
SETUP MENUS ..................................................................................... 31
3.4.1 Accessing and Navigating Setup Menus................................................ 31
3.4.2 Menu Structure ................................................................................ 32
3.4.3 Parameter Summary ......................................................................... 32
SETUP > SETUP 1 (General Operating Parameters)............................................................ 32
SETUP > SETUP 2 (Com 1 Settings)................................................................................. 33
SETUP > SETUP 3 (Com 2 Settings)................................................................................. 34
SETUP > SETUP 4 (Tilt Switch)........................................................................................ 35
SETUP > SETUP 5 (Setpoints) ......................................................................................... 35
SETUP > SETUP 6 (Lock Keys) ........................................................................................ 36
ACAL (Analog Output).................................................................................................... 37
4
CALIBRATION ................................................................................ 38
4.1
CALIBRATION WITH STANDARD WEIGHTS (S-CAL) .......................................... 38
4.1.1 Zero (Dead-Load) Calibration ............................................................. 38
4.1.2 Span Calibration ............................................................................... 39
4.2
ELECTRONIC CALIBRATION (E-CAL) ........................................................... 39
4.2.1 Calculating Calibration Values............................................................. 40
4.2.2 Setting Zero Calibration (Dead-Load) Value .......................................... 40
4.2.3 Span (Max. Capacity) Calibration ........................................................ 41
4.3
STORING CALIBRATION DATA ................................................................... 41
4.4
LOCKING AND UNLOCKING CALIBRATION....................................................... 41
4.4.1 Sealing Indicator Enclosure with Stickers.............................................. 42
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4.4.2
Securing Load Receptor ..................................................................... 44
4.4.3 Checking Seal Status and Audit Trail Counter........................................ 44
5
GENERAL SYSTEM PARAMETERS..................................................... 45
5.1
PAR MENU......................................................................................... 45
5.1.1 Accessing the Menu and Editing Parameters.......................................... 45
5.1.2 PAR Menu Parameters ....................................................................... 46
5.1.3 Dual-scale Connecting And Parameter Settings ..................................... 47
5.2
SETUP 1 (INSIDE SETUP MENU) ............................................................. 47
5.2.1 Accessing the Menu and Editing Parameters.......................................... 47
5.2.2 SETUP 1 Parameters ......................................................................... 48
6
SERIAL COMMUNICATION.............................................................. 49
6.1
SERIAL PORTS CONFIGURATION................................................................. 49
6.1.1 RS232 Serial Port ............................................................................. 49
6.1.2 RS485 Serial Port ............................................................................. 49
6.2
SETTING PORT OUTPUT PARAMETERS .......................................................... 50
6.2.1 Setting Port 1 Output ........................................................................ 50
6.2.2 Setting Port 2 Output ........................................................................ 50
6.3
OUTPUT TYPES .................................................................................... 50
6.3.1 Local Printer..................................................................................... 50
6.3.2 Continuous Weight Output ................................................................. 50
Continuous Weight Data Block Composition LEO Format..................................................... 51
Continuous Weight Data Block Composition AND Format ................................................... 51
Two-Scale Operation...................................................................................................... 52
6.3.3 Continuous Weight With Tare ............................................................. 52
Data Block Composition.................................................................................................. 53
When Display Indication is Not Weight ............................................................................. 53
6.3.4 Print on Demand............................................................................... 53
6.3.5 Alibi Transmit................................................................................... 54
6.3.6 Alibi Mode Commands ....................................................................... 54
Transmit Displayed Weight ............................................................................................. 54
Command “ZERO” ......................................................................................................... 54
Print on Demand Character............................................................................................. 54
6.3.7 EDP Protocol Output.......................................................................... 55
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