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Appendix, A.1 4-20 ma current loop option – American Magnetics 187 Self-Compensating Liquid Level Controller User Manual

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Appendix

A.1 4-20 mA Current Loop Option

The 4-20 mA output utilizes pins 2 and 4 of connector J8. When the Model
187 is configured for the 4-20 mA current loop option, the 0-10 VDC analog
output from connector J8 is not available. The figure below shows the
wiring diagram for the receiver. The 4-20 mA output has a maximum
compliance of 11.5 VDC.

Receiver

Model 187
Instrument

R

L

I

LOOP

+

_

J8 pin 2 (

I

OUT

)

J8 pin 4 (common)