Omega Engineering DPG10L manual Wiring, Typical 4-20 mA Circuit with Open Collector Alarms

DPG10L M3367/0606

• Wiring

Typical 4-20 mA Circuit

Gauge		Process
Connector		Controller
A	+ EXCITATION	+Vin
B	– EXCITATION	R L

C

4-20 mA

DCURRENT

LOOP

E

F

Typical 0-5 VDC Circuit

Gauge

Connector

Typical 4-20 mA Circuit with Open Collector Alarms

Gauge			Process
Connector			Controller
A	+Excitation		+Vin
		4-20mA Loop
	-Excitation
B			R L
C	Dig Gnd
D Alarm 2			DC* Power
		Alarm	Supply
E	Alarm 1	Loads	-

	Gnd		+
F		(Optional but recommended
			*Any voltage up
		for surge protection)
			to 60 VDC @
			160 mA max.

R = 250 ohm for 1-5 V output

A

+ EXCITATION

L

RL = 500 ohm for 2-10 V output

	+	SUPPLY
B	+ OUTPUT	VOLTAGE

C – OUTPUT

–EXCITATION

D

E

F

DO NOT EXCEED 750 OHMS WITH 24 VDC SUPPLY.

NOTE: Alarm loads may be relay coils as shown below. Connect 1 A 400 V diodes to protect from relay "kick".

Alarm 2

To + Power

Alarm 1