ProSoft Technology BM-1000-PM1K - Manual (Page 25)

Wiring Diagrams
ProSoft Technology, Inc. Page 25 of 36
June 10, 2015
5.3 Analog 4-20 mA Module
(BM-A420-122 Shown)
VS/External Power (min) = 10 + Max Current (Amp) * R
loop
R
loop
= Total Loop Impedance
Use Solid / Stranded (AWG) 28-12 Wire Gauge
4-20 mA I/O Module does not share a common ground with RS485 Module.
All inputs and outputs on I/O Modules provide field isolation.