Omega ISA- BUS MULTI-FUNCTIONAL BOARD OME-A822PG - Manual (Page 37)

Figure
4
R is a shunt resistor. A 250 Ω shunt resistor converts 4-20mA to 1-5Vdc.
Signal Shielding
z
The signal shielding is the same for the connections shown in Figure 1 to Figure 4
z Use a single connection to frame ground (not A.GND or D.GND)
Vin
Frame Ground
OME-A-822PGL/PGH
A.GND
D.GND
OME-A-822PGL/PGH Hardware Manual ---- 35