Labom CV3 Series Operating Instruction 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.
LED „ZERO"
acknowledgement
Button "ZERO" for
setting lower range
value and switch
point channel 1
Module mounting
Overload indicator
for channel 1
x) Various function modules can easily be added to PASCAL CV for displaying or communicating purposes
(see table p. 5).
Setting the measuring range
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.
Setting the switch points (Operating Menu: Switch Points)
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.
Operating Instruction BA_029_2019-08_10.00 Pressure transmitter PASCAL CV
Internal module
x)
plug connection
Terminals
LED „SPAN"
acknowledgement
Button "SPAN" for
setting upper range
value and switch
point channel 2
Module mounting
Overload indicator
for channel 2
BTA-No. 029 Rev. 0F3
BTA-No. 029 1J2 Page 4
P. 6
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