Weidmuller Portacal 275 - Signal source and loop calibrator - Manual (Page 13)

13
4-20 mA range adjustment
1. Set the ‘current range select’ switch to -0 mA.
. Set the ‘output level select’ switch to 0 %.
3. Set the ‘voltage/millivolt select’ switch to 00 mV.
. Set the ‘source/sink mode’ switch to Source.
5. Adjust potentiometer A until the output is ±0.001 mA.
6. Set the ‘output level select’ switch to 100 %.
7. Adjust potentiometer B until the output is 0 ±0.001 mA.
8. Repeat the procedure until both readings are correct.
Voltage ranges
The adjustment of the current ranges will ensure that the voltage
ranges are correct.