WIKA CPH65I0 Betriebsanleitung Seite 41

6. Commissioning, operation
6.11.3 %-Error function
WARNING!
Observe the connection parameters prior to making a connection to the
instrument.
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.
Figure 6: CPH65I0 with a pressure transmitter with %-Error function
Example:
Suppose a pressure transmitter under test has a full scale range of 0 ... 20 bar and gives
a corresponding 4 ... 20 mA output signal. The user can programme in a 0 ... 20 bar
WIKA operating instructions, model CPH65I0
CPH65I0
psi
[P1]
0.00
mA 0.00%
4.000 mA
% ERROR
0.00 %
CONFIG LOWER MORE
F1 F2 F3
ON
ZERO
OFF
30V
24mA
max
P1 P2
SIGNAL
–
+
TEST
GB
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