Weidmuller Portacal 275 - Signal source and loop calibrator Manual do Utilizador descarregar pdf (Página 13)

4-20 mA range adjustment

1. Set the ‘current range select’ switch to 4-20 mA.

2. Set the ‘output level select’ switch to 0 %.

3. Set the ‘voltage/millivolt select’ switch to 200 mV.

4. Set the ‘source/sink mode’ switch to Source.

5. Adjust potentiometer A until the output is 4 ±0.001 mA.

6. Set the ‘output level select’ switch to 100 %.

. Adjust potentiometer B until the output is 20 ±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.

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Weidmuller Portacal 275 - Signal source and loop calibrator Manual do Utilizador Página 13