WIKA Pascal 100 - Manual (Page 82)

6 Commissioning, operation
82 WIKA Operating Instruction, Pascal 100 and Pascal 100/IS
GB
6.10 Calibration Examples
6.10.1 Example 1
– Calibration of two wires pressure transmitters
Pascal 100 or Pascal 100/IS generates 24 V d.c. power supply to the transmitter. The 4-20 mA
output signal from the transmitter is sent to be measured to an electrical input signals card IN A or
IN B.
The pressure reference value to the transmitter is generated by the hand pump and by the fine
volumetric regulator, both present in the calibrator, and measured as REF by the calibrator itself.
The figure below shows how to connect the transmitter to the calibrator.
Figure 105 – Pressure transmitter calibration example
A typical configuration of Pascal100 for the calibration of a pressure transmitter is illustrated in the
following figure:
Figure 106 – Pressure transmitter calibration configuration
Device Under Test
Error Bargraph
Phyiscal module
connection
Error value
Sensor full scale
Reference