Labom PASCAL CV4 Operating Instruction
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Operating instruction for pressure transmitter PASCAL CV4
4...20 mA, Type series CV3... with switching module
LABOM Mess- und Regeltechnik GmbH Im Gewerbepark 13 27798 Hude Germany
Hotline: +45 4408 804-444 Fax: +49 4408 804-100 e-mail: [email protected] www.labom.com
Operating instruction BA_029_2019-08_10.00
Page 1/6
Further information required? Hotline +49 (0) 4408 804-444
Operating Instructions for pressure transmitter
PASCAL CV, 4...20 mA, Type Series CV 3 . . . with switching module
Basic modules
PROFIBUS PA
Display module
HART® module
switching module
4...20 mA
Function modules
Various modules can easily be added to PASCAL CV (see table page 5).
www.pascal-cv.com
Features
■ Modular pressure transmitter
Output signal:
4..20 mA, optional with HART® protocol
■ Function modules
● Multifunctional display with 5-segment digital display
and bar graph
● Switching module with 2 floating channels, maximum
0.5 A switching current, electrically isolated at all
sides, without additional auxiliary power
■ Function module replacement on site without recali-
bration "plug and measure"
■ Watchdog for electronics modules and measuring cell
■ Classfication per SIL 2
■ Accuracy: ≤ 0,15 %
■ Turndown 5:1
■ Degree of protection IP 66
■ Piezoresistive measuring cell directly aerated, fully
welded, without inside gasket
Operating Instruction BA_029_2019-08_10.00 Pressure transmitter PASCAL CV
Page 2/6
BTA-No. 029 1J2 Page 2
General
Switched outputs
These operating instructions refer to installation, commissioning,
servicing and adjustment. Statutory regulations, valid standards,
additional technical details in the relevant data sheet, details of the
type plate and any additional certificates are to be observed along
with these operating instructions.
Installation, operation and maintenance of the instrument may be
executed
by
authorized
personnel,
only,
using
suitable
equipment.
Warning: If the instrument is used incorrectly it is possible that
serious injuries or damage can occur!
Prior to the disassembly of the pressure transmitter the impulse
ducts between the measuring transmitter and the process have to
be locked and relieved from pressure.
The standard nominal pressure rating and the permissible
operating temperature of the gasket should be observed for all
process connections. Operation outside the allowed nominal
pressure rating, especially with clamp connections, is only
possible with suitable clamps. In this case, note DIN 32676 for
stipulations on heat resistance.
Pressure transmitters that are mechanically defective can cause
injuries or give rise to process faults. Suitable precautions should
be taken to avoid this.
The CE marking on the instruments certifies compliance with valid
EU directives for bringing products to market within the European
Union. The following directives are met:
EMC directives
EMC
2004/108/EC
Pressure Equipment Directive
PED
97/23/EC
Before mounting the instrument ensure that pressure range,
overpressure resistance, media compatibility, thermostability and
pressure port are suitable for the process at hand.
Conduct process installation before electrical installation.
Measuring instruments that should not have any oil or grease
residues in the pressure port are marked „Free of oil and grease“.
Gaskets must be chosen that are suited to the process
connection and resistant to the measured medium.
Check for pressure tightness when commissioning the
transmitter.
Do not insulate the temperature decoupler, as this would reduce
the decoupling effect. Follow DIN 32676.
Wire up the instrument with power switched off.
The housing in protection class IP 66 consists of a two chamber
system in which the measuring cell is aerated directly in relation
to the environment by means of a PTFE filter system.
The instrument can only be protected against electromagnetic
interference (EMC) when the conditions for screening, earthing,
wiring and potential isolation are met during installation.
The mounting position should be taken into consideration when
checking the zero output. Standard transmitters are adjusted at
the factory for vertical mounting. Changes to the mounting
position can cause zero shifts at pressure ranges < 2 bar. These
drifts can be corrected by adjustment on site.
When the instrument is opened any contact with the electrical
connections can affect the signals. This situation can be avoided
by switching off the supply voltage or by disconnecting the signal
circuit.
The types of protection IP66 are only achieved, when the
threaded
ring
has
been
screwed
tight
after
electrical
connection/parameterization.
The instrument requires no maintenance.
When connecting circuits to the contacts be sure the polarity
(+ and - as indicated) is correct.
To avoid high electrical currents only connect the circuits when
the supply voltage is switched off.
Do not exceed the specified maximum voltage 30 V DC!
When the installation is properly carried out the contacts
cannot be damaged by overloading. (Thermal fuses)
The thermal fuses will automatically reset themselves when
Safety instructions
fault-free operations have been reinstated.
Be sure to follow the instructions on page 4 of this
manual!
Instructions for the operation with diaphragm seal
To avoid soiling and damage remove protective cap or wrapping
in front of the separating diaphragm before mounting.
Do not touch the flush mounted separating diaphragm, as there is
a danger of deformation at measuring ranges to 10 bar / 150 psi.
Instrument zero point and measuring characteristics could also be
affected.
Measuring instrument and diaphragm seal are a closed
system and should not be separated.
Avoid overtightening the process screw joints as this can result in
zero displacements at the pressure transmitter (fixing error).
When using systems with capillary for vacuum measurements
always mount the pressure transmitter underneath the diaphragm
seal. The instruments are set at the factory with pressure
transmitter and diaphragm seal at the same height. Correct any
differences in height between diaphragm seal and pressure
transmitter arising from conditions on site on the pressure
transmitter when placing the instrument into operation (see
“Setting the measuring range”). When correcting for elevation be
aware of the adjustment limits.
CE marking
Be sure to install and securely fasten the capillary to avoid
vibrations. Roll up overlengths with a minimum radius of 50 cm.
Shock and changes in temperature can impact on measurements.
Process
and
ambient
temperatures
can
cause
zero
displacements at the pressure transmitter with some system
designs. We can supply you with an error analysis.
Mounting and operating
Functional safety
per IEC 61508 SIL 2
Operating Instruction BA_029_2019-08_10.00 Pressure transmitter PASCAL CV
Page 3/6
BTA-No. 029 1J2 Page 3
Connection diagram
Basic module 4...20 mA
Note on the electrical connection of the switching module
Two terminals (+ and -) are available for connecting the two direct current switching outp
The switching outputs are galvanically isolated from each other and from the other transm
The switching output can never be destroyed if the maximum switching voltage 30 VDC i
The internal resistance of the switching output is approx. 0.3 Ohm (when IS = 0.5 A) in s
In the event of reversed voltage, the switching output is switched (internal diode).
If the switched current exceeds the nominal current 500 mA then an automatically resetti
current establishes itself which depends on the level of the voltage applied.
The fuse only resumes its low Ohmic state when the current drops dramatically below the
output has been switched off/ disconnected or the power supply on the switched circuit h
If the switching output is correctly connected (not reversed) the “FUSE S1” and “FUSE S
activated. This requires a minimum power supply of 3 V on the switched circuit.
Connection diagram
Modules may only be
exchanged/added
when the power
supply has been
switched off!
Switching module
Modules may only be
exchanged/added
when the power
supply has been
switched off!
cable gland design: remove switching module to connect basic module!
max. switching rate
6 Hz
setting range of switch point:
within limits of meas. range
seeting range of hysteresis:
within limits of meas. range
hysteresis:
rising or falling
malfunction indication (Uk > 3V)
LED red, overload or short circuit
device off circuit
contact open
electrical connection
M12 x 1, 8 channels, or screwed
terminal 1 mm²
Hysteresis functions
falling hysteresis (factory-set)
rising hysteresis
Connection diagram
Basic module 4...20 mA
Note on the electrical connection of the switching module
Two terminals (+ and -) are available for connecting the two direct current switching outputs.
The switching outputs are galvanically isolated from each other and from the other transmitter (500 VAC).
The switching output can never be destroyed if the maximum switching voltage 30 VDC is observed.
The internal resistance of the switching output is approx. 0.3 Ohm (when IS = 0.5 A) in switched status.
In the event of reversed voltage, the switching output is switched (internal diode).
If the switched current exceeds the nominal current 500 mA then an automatically resetting thermal fuse is activated. A holding
current establishes itself which depends on the level of the voltage applied.
The fuse only resumes its low Ohmic state when the current drops dramatically below the holding current because the switching
output has been switched off/ disconnected or the power supply on the switched circuit has been switched off/ reduced.
If the switching output is correctly connected (not reversed) the “FUSE S1” and “FUSE S2” LEDs indicate that the fuse has been
activated. This requires a minimum power supply of 3 V on the switched circuit.
BTA-No. 029 Rev. 0F3
Connection diagram
color code as Binder series 763
Modules may only be
exchanged/added
when the power
supply has been
switched off!
P. 4
Switching module
color code as Binder series 763
Modules may only be
exchanged/added
when the power
supply has been
switched off!
cable gland design: remove switching module to connect basic module!
Note on the electrical connection of the switching module
Two terminals (+ and -) are available for connecting the two direct current switching outputs.
The switching outputs are galvanically isolated from each other and from the other transmitter (500 VAC).
The switching output can never be destroyed if the maximum switching voltage 30 VDC is observed.
The internal resistance of the switching output is approx. 0.3 Ohm (when IS = 0.5 A) in switched status.
In the event of reversed voltage, the switching output is switched (internal diode).
If the switched current exceeds the nominal current 500 mA then an automatically resetting thermal fuse is activated. A holding
current establishes itself which depends on the level of the voltage applied.
The fuse only resumes its low Ohmic state when the current drops dramatically below the holding current because the switching
output has been switched off/ disconnected or the power supply on the switched circuit has been switched off/ reduced.
If the switching output is correctly connected (not reversed) the “FUSE S1” and “FUSE S2” LEDs indicate that the fuse has been
activated. This requires a minimum power supply of 3 V on the switched circuit.
BTA-No. 029 Rev. 0F3
P. 4
Switching module
color code as Binder series 763
Modules may only be
exchanged/added
when the power
supply has been
switched off!
cable gland design: remove switching module to connect basic module!
e
direct current switching outputs.
er and from the other transmitter (500 VAC).
switching voltage 30 VDC is observed.
Ohm (when IS = 0.5 A) in switched status.
hed (internal diode).
hen an automatically resetting thermal fuse is activated. A holding
oltage applied.
drops dramatically below the holding current because the switching
ply on the switched circuit has been switched off/ reduced.
he “FUSE S1” and “FUSE S2” LEDs indicate that the fuse has been
he switched circuit.
BTA-No. 029 Rev. 0F3
pply has been
tched off!
P. 4
color code as Binder series 763
dules may only be
changed/added
en the power
pply has been
tched off!
asic module!
Note on the electrical connection of the switching module
Two terminals (+ and -) are available for connecting the two direct current switching outputs.
The switching outputs are galvanically isolated from each other and from the other transmitter (500 VAC).
The switching output can never be destroyed if the maximum switching voltage 30 VDC is observed.
The internal resistance of the switching output is approx. 0.3 Ohm (when IS = 0.5 A) in switched status.
In the event of reversed voltage, the switching output is switched (internal diode).
If the switched current exceeds the nominal current 500 mA then an automatically resetting thermal fuse is activated. A holding
current establishes itself which depends on the level of the voltage applied.
The fuse only resumes its low Ohmic state when the current drops dramatically below the holding current because the switching
output has been switched off/ disconnected or the power supply on the switched circuit has been switched off/ reduced.
If the switching output is correctly connected (not reversed) the “FUSE S1” and “FUSE S2” LEDs indicate that the fuse has been
activated. This requires a minimum power supply of 3 V on the switched circuit.
Connection diagram
Operating Instruction BA_029_2019-08_10.00 Pressure transmitter PASCAL CV
Page 4/6
BTA-No. 029 1J2 Page 4
Operation of pressure transmitter PASCAL CV with Switching Module
The standard factory setting for the basic module and the switching module can be found in the table on page 5.
Internal module
plug connection
x)
x) Various function modules can easily be added to PASCAL CV for displaying or communicating purposes
(see table p. 5).
Setting lower range value (Operating menu: Zero Point)
1.
Create a stable pressure at which 4 mA is to be set.
2.
Hold down the left button (ZERO) for about 3 seconds.
3.
The change to the lower range value is acknowledged after you release the button by a flashing “ZERO”
LED.
Note:
The measuring span is always retained when the lower range value is changed if this is permitted by the
sensor. A completed change is acknowledged by a flashing “ZERO” LED.
If the pressure transmitter is set outside the permissible measuring range limits (nominal range ±5 %, smallest
measuring span) then the values will not be applied and the LED will not be acknowledged.
Setting upper range value (Operating menu: Measuring Span)
1.
Create a stable pressure at which 20 mA is to be set.
2.
Hold down the right button (SPAN) for about 3 seconds.
3.
The change to upper range value is acknowledged after you release the button by a flashing “SPAN”
LED.
Note:
The lower range value is always retained when upper range value is changed. A completed change is
acknowledged by a flashing “SPAN” LED.
If the pressure transmitter is set outside the permissible measuring range limits (nominal range ±5 %, smallest
measuring span) then the values will not be applied and the LED will not be acknowledged.
Channel 1
1.
Apply the pressure at which the switch is to be activated.
2.
Hold down the left button “ZERO” (for switching channel 1) for about 10 seconds. The “ZERO” LED then lights up
continuously.
Abort: press the “ZERO” button again for about 10 seconds. Alternatively, wait for an automatic abort after about 5
minutes.
3.
If the pressure is stable, press the “ZERO” button for a short time.
4.
The switching point is accepted and the “ZERO” LED stops flashing.
Channel 2
1.
Apply the pressure at which the switch is to be activated.
2.
Hold down the right button “SPAN” (for switching channel 2) for about 10 seconds. The “SPAN” LED then lights up
continuously.
Abort: press the “SPAN” button again for about 10 seconds. Alternatively, wait for an automatic abort after about 5
minutes.
3.
If the pressure is stable, press the “SPAN” button for a short time.
4.
The switching point is accepted and the “SPAN” LED stops flashing.
Setting the measuring range
BTA-No. 029 Rev. 0F3
P. 6
Module mounting
LED „SPAN“
acknowledgement
Button “SPAN” for
setting upper range
value and switch
point channel 2
LED „ZERO“
acknowledgement
Button “ZERO” for
setting lower range
value and switch
point channel 1
Overload indicator
for channel 2
Terminals
Module mounting
Overload indicator
for channel 1
Setting the switch points (Operating Menu: Switch Points)
Operating Instruction BA_029_2019-08_10.00 Pressure transmitter PASCAL CV
Page 5/6
BTA-No. 029 1J2 Page 5
After all parameters have been entered, subsequent operation can be disabled as follows:
-
Press the "ZERO" and "SPAN" buttons at the same time (approx. 10 seconds).
After write protection has been activated, the “ZERO” and “SPAN” LEDS flash in synchrony four
times in succession.
Deactivating write protection:
-
Press the "ZERO" and "SPAN" buttons at the same time (approx. 10 seconds).
After deactivation, the “ZERO” and “SPAN” LEDS flash in synchrony.
Parameterizing of Switching Module
Description of further function modules
Please check the following table for further information concerning the operating menu of the switching module (grey marked).
Various function modules can easily be added to PASCAL CV (see table).
These modules for display and communicating can be exchanged or extended with ease on site without having to recalibrate or
remove the device from the process (“plug and measure”). Automatic module detection renders programming redundant.
Note: Modules may only be exchanged/added when the power supply has been switched off!
parameter
basic module
function modules
variability
standard
4...20 mA PROFIBUS
switching
module
display
module
HART®-
module
x = configurable
w = factory setting
BTA-No. 029 Rev. 0F3
Modifications reserved
P. 7
zero point
RANGE / Zero
see instrument ranges
nominal range
x
x
x
x
x
ng span
RANGE / Span
see instrument ranges
nominal range
x
x
x
x
x
ng
DAMP
0.0...120.0 sec.
0.0 sec.
w
x
——
x
x
n-max-values
HI / LO
pressure and temperature
ressetable
——
——
x
——
x
x
aracteristic
FUNC
linear, table
linear
w
——
——
x
x
nit
UNIT
bar, mbar, kPa, MPa, mmH2O,
mH2O, kg/cm², psi
bar
w
x
——
x
x
ng circuit
est
LOOP
3.55...22 mA
——
——
——
——
x
x
larm state
ALARM
< 3.6 mA, > 21.0 mA
< 3.6 mA
w
——
——
x
x
urrent trimming
I-CAL
-2 %...+ 5 %
——
——
——
——
x
x
imming P-CAL
zero point -50...+50% o.n.range
span -10...+10 % of nom. range
——
——
x
——
x
x
able function
TABLE
2...31 points in table
0 % = 4 mA
100 % = 20 mA
——
——
——
x
x
ystem info
INFO
software, serial number
revision level
——
——
x
——
x
x
actory data reset
RESET
——
——
——
x
——
x
x
witch points
SWCH1(2)
0.0...100.0 % of nominal range
50 %
——
x
x
x
x
steresis
SWCH1(2)/Hyst.
0.0...100.0 % of nominal range
0,1 %
hyster.falling
——
x
w
x
x
witching function SWCH1(2)/SwTyp
breaker, maker
breaker
——
x
w
x
x
write protection
——
ON, OFF
OFF
x
x
x
x
x
erating menus display of display
module
op
measuri
dampi
mi
ch
pressure u
measuri
t
a
c
pressure tr
t
s
f
s
hy
s
Setting and resetting the write protection (Operating menu: Write Protection)
Error code description
System Errors
W-DOG
ERROR
FLASH
ERROR
BrdGE
ERROR
SnSr
Error in sensor module or this basic module cannot
nmbr
access the sensor.
bASE
The sensor module has been replaced or there is an error
ChkEr
in the basic module.
SnSr
ChkEr
r-Digit Error Code Display
0
0
0
Device software not running correctly.
Device parameters invalid.
Bridge is faulty.
Error in sensor module (compensation table/ set-up data)
Operating Instruction BA_029_2019-08_10.00 Pressure transmitter PASCAL CV
Page 6/6
BTA-No. 029 1J2 Page 6
Error code description
SnSr
Error in sensor module or this basic module cannot
nmbr
access the sensor.
bASE
The sensor module has been replaced or there is an error
ChkEr
in the basic module.
SnSr
ChkEr
Four-Digit Error Code Display
0
0
0
0
Fourth Digit in Error Code in PASCAL CV Display Module
0
No error.
1
Pressure outside nominal measuring range.
2
Temperature outside specified range.
3
Pressure outside nominal measuring range and temperature outside specified range.
4
Analog output limited to current value.
5
Pressure outside nominal measuring range and analog output limited to current value.
6
Temperature outside specified range and analog output limited to current value.
7
Pressure outside nominal measuring range; temperature outside specified range;
and analog output limited to current value.
Third Digit in Error Code in PASCAL CV Display Module
0
No error.
8
General device error (always shown with other errors)
Second Digit in Error Code in PASCAL CV Display Module
0
No error.
2
A memory cell in the microprocessor is faulty.
First Digit in Error Code in PASCAL CV Display Module
0
No error.
1
Data in sensor module invalid.
2
Data in basic module invalid.
3
Data in sensor and basic module invalid or do not match.
4
Connected sensor not detected by basic module.
8
Measuring bridge / pressure sensor faulty.
Digits on a gray background indicate errors that can only be remedied by the manufacturer.
All other issues can be remedied by the customer.
Error in sensor module (compensation table/ set-up data)