Wika CPH7600 Manuel d'utilisateur Page 37
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37WIKA operating instructions, model CPH7600
14051628.01 11/2012 GB/D
GB
6. Commissioning, operation
Figure 6: CPH7600 with a pressure transmitter with %-Error function
6.11.4 %-Error function
The calibrator features a special function which can calculate the error in the pressure
value from the mA value as a percentage of the 4 ... 20 mA span. The %-Error mode
uses all three screens and has a special menu structure. It displays pressure, mA and
%-Error simultaneously.
Example:
Suppose a pressure transmitter under test has a full scale range (measuring range) of
20 bar and gives a corresponding 4 ... 20 mA output signal. The user can programme in
a 0 ... 20 bar pressure span into the calibrator and the calibrator will then calculate and
display the deviation or %-Error value from the 4 ... 20 mA output. This then eliminates
manual calculations of the test item deviation.
Use small-volume hose lines, as for as
possible
- Wally Box III model CPH7600 1
- Wally Box III Typ CPH7600 1
- Contents 3
- 1. General information 4
- 2. Safety 5
- 3. Specications 10
- 4. Design and function 13
- 14051628.01 11/2012 GB/D 16
- 6. Commissioning, operation 17
- 8. Faults 42
- 10. Accessories 44
- 1. Allgemeines 48
- 2. Sicherheit 49
- 3. Technische Daten 54
- 4. Aufbau und Funktion 57
- 6. Inbetriebnahme, Betrieb 61
- 8. Störungen 86
- 10. Zubehör 88
- WIKA global 90
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