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Current output, Cable screen, F - ufm – Dwyer UFM User Manual

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F - UFM

Issue 1.4

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4.8 Current Output

The isolated 4-20 mA is a current source and can drive into a maximum load of 620

Ω.


The 4-20 mA current output is available at the Red and Black wires. The polarities are shown
in Figure 8.

The alarm current due to a flow outside the range specified or due to a loss of signal is set at
3.5 mA.

4.9 Cable Screen

For full immunity to electrical interference the screen of the cable should be connected to
Earth.