Wika CPH65I0 Manuel d'utilisateur télécharger pdf (Page 39)

39WIKA operating instructions, model CPH65I0

14061681.02 03/2013 GB/D

6. Commissioning, operation

9. Select the "NEW TEST" option to clear the data and perform another test.

10. Select the "DONE" option to end the test and return to the standard pressure

setting.

The previous example uses a normally closed switch. The basic

procedure is eectively the same for a normally open switch, the display

will simply read "OPEN" instead of "CLOSE".

6.11 Calibrating transmitters

6.11.1 Using the mA measurement function

WARNING!

Observe the connection parameters prior to making a connection to the

instrument.

The mA function enables to read out the 4 ... 20 mA output from the instrument being

calibrated. This is achieved passively - meaning the test item generates the 4 ... 20 mA

directly. This value is read by the calibrator.

8. Select the "NEXT" option to display the pressure at which the switch closed and the

hysteresis "SW DEADBAND" .

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 99 100

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Wika CPH65I0 Manuel d'utilisateur Page 39