DI-1110 Hardware Manual
Controls, Indicators, and Connections
18
4-20mA Current Loop Measurements
Use the following diagram for 4-20mA current loop measurement connections.
The shunt resistor should be placed on the low side of the circuit as shown below:
Shunt
Resistor
Model
R250
+
-
www
.da
taq.com
+
-
+
-
+
-
+
-
D5
D4
D6
GnD
+5V
Power
Remote
Active
-
+
Ch1
-
+
Ch2
-
+
Ch3
-
+
Ch4
Model DI-1
11
0
Analog Inputs (±10 VFS, ±100 V max)
+
-
+
-
+
-
+
-
Digital Ports (25 V @ 100mA
max.)
Data
Acquisition Starter Kit
Download software
at run.dataq.com
Rate/D2
Cnt/D3
Rcrd/D1
Evnt/D0
-
+
Ch5
-
+
Ch6
-
+
Ch4
-
+
Ch7
-
+
Ch8
Shunt Resistor
I
4-20mA
Current Loop
Transmitter
Loop Power
Supply
To DI-1120
Analog Input Channel
+
-