WIKA CPH8000, Руководство по эксплуатации, Страница: 79 / 85

6 Commissioning, operation
WIKA Operating Instruction, Model Pascal ET, ET-P, ET/IS, ET-P/IS 79
GB
Figure 87
– Display instrument setup
6.9 Calibration Examples
6.9.1 Example 1
– Calibration of 2-wire pressure transmitters
Pascal ET, ET-P, ET/IS, ET-P/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 88
– Pressure transmitter calibration example
A typical configuration of Pascal100 for the calibration of a pressure transmitter is illustrated in the
following figure:

Set a channel for pressure values reading, assigned as REF

Set a channel for mA reading at the inputs IN A or IN B (if present), assigned as DUT

Enable the 24 V power supply by pressing the button from the side bar

Make the connections as indicated on the picture above