Measuring Current; Measuring Temperature With A Resistance Thermometer - WIKA Obsolete CPH65I0 Betriebsanleitung

6 Commissioning, operation
6.7

Measuring current

GB
To measure current, use the input terminals on the front of the calibrator. Select the mA function on
the lower display. Current is measured in mA and percentage of the measuring range. The
measuring range on the calibrator is set to 0 % at 4 mA and 100 % at 20 mA.
Example:
If the current measured is displayed as 75 %, then the value is 16 mA.
6.8

Measuring temperature with a resistance thermometer

For temperature measurement, select the function "RTD" on one of the displays. The correct
resistance thermometer must be used. There are four types of resistance thermometer supported:
"P100-385", "P100-392", "P100-JIS" and "CUSTOM".
26
WARNING!
Check entity parameters before making any connections to this device.
The display will indicate "OL" when the measured current exceeds the nominal
range of current measurement (24 mA).
The factory default type is "P100-385", so if the new CPH65I0 is being used with a
WIKA delivered Pt100 you do not have to reset the resistance thermometer type.
The Pt100 only needs to be connected to the CPH65I0 and the measured
temperature will immediately be displayed. The display will indicate "OL" if the
measured temperature is outside the nominal measurement range of the resistance
thermometer (below -40 °C or above 150 °C).
If a custom resistance thermometer is being used, the entry of R0 and the
coefficients are handled through the serial interface.
WIKA Operating Instruction, Model CPH65I0