Sensaphone SCADA 3000 Users manual - Manual (Page 51)

5-5
Chapter 5: Input Wiring
Figure 7: 0-5V Circuit diagram
4–20mA Current Loop Transducers
The inputs on the SCADA 3000 are compatible with transducers that produce an analog out-
put current of 4 to 20mA. Analog 4–20mA output devices sometimes require a 24VDC power
supply to operate. The SCADA 3000 provides a built-in 24VDC power supply for this pur-
pose. The 24VDC power supply has enough capacity to power up to sixteen 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 8: Wiring a 4
–
20mA device using the built-in 24 VDC supply.
The shunt set to the 4-20mA position is reflected in the following circuit diagram.
Figure 9: 4
–
20mA Circuit diagram