Flow Calibration - WIKA Obsolete CPH65I0 Betriebsanleitung

6 Commissioning, operation
Setting 5:
The upper display is set to [P1], the middle display is set to [P2] and the lower display is set to
"RTD".

6.13 Flow calibration

WARNING!
Check entity parameters before making any connections to this device.
The CPH65I0 is ideal for flow computer calibration. Every manufacturer of flow computers has a
different calibration procedure, but most call for calibration of three parameters: static pressure,
differential pressure and temperature. To facilitate these measurements recall setting 5 on the
CPH65I0.
1) Connect the calibrator to your static and differential pressures. ([P1], [P2]) Then connect
the resistance thermometer to the calibrator.
2) Using the reading of your resistance thermometer, static, and differential pressures make
sure the flow computer has the correct reading. If not, adjust the flow computer as
necessary.
WIKA Operating Instruction, Model CPH65I0
GB
35