Sensaphone SCADA 3000 Users manual - Manual (Page 251)

23-7
Chapter 23: Universal Input Module
Figure 10: Wiring a 0–5V transducer
4–20mA Current Loop Transducers
The Universal Input Module is compatible with transducers that produce an analog output
current of 4 to 20mA. You can program High and Low table values from the SCADA 3000
Software to scale the signal to the appropriate values.
Analog 4–20mA output devices typically require a 24VDC power supply to operate. The
Universal Input Module has an internal 24VDC power supply available for this purpose. The
24VDC power supply has enough capacity to power up to eight 4–20mA devices. Follow the
wiring diagrams below for connecting a 4–20mA device. The configuration jumper should be
set to the 4–20mA position as indicated in the following diagrams:
Figure 11: Wiring a 4–20mA device using the internal 24VDC supply