Dataq DI-2008 - 4-20 Ma Current Loop Measurements

DI-2008 Hardware Manual
Controls, Indicators, and Connections
22
4-20mA Current Loop Measurements
Use the following diagrams for 4-20mA current loop measurement connections.
Set the engineering units as desired and define upper/lower levels in W
INDAQ as 1V = 4mA for the low value and 5V
= 20mA for the high value. For example, when using W
INDAQ Acquisition software, in the EU Settings dialog box:
Enter the following values:
Visit our website at https://www.dataq.com/blog/data-acquisition/4-20-ma-current-loop-measurements/ to address all
popular 4-20mA configurations.
You can also associate these values to a physical measurement such as pressure, load, flow, torque, etc. Read the Help
files for more information regarding Engineering Units Settings.
Vol
t
EU EU Tag
Upper Level 520
mA
Lower Level 14
Analog
Input
+15V
Supply
R250
4-20mA
Sensor
Analog
Input
Analog
Input
R250
4-20mA
Sensor
+15V
Supply
R250
4-20mA
Sensor