Wiring
Page 7
June 2017
VRX-UM-02233-EN-02
WIRING
The transmitter ships with a cable that has a connector on one end and flying leads with 4 or 5 wires on the other end . Use
this cable to wire the power and outputs . The transmitter is available with two output options:
• 4…20 mA/pulse output; uses a 4-wire cable
• Modbus RTU; uses a 5-wire output
Display Only (No Output)
Black wire
24 VDC
Blue wire
Ground
Pulse Output
Black wire
24 VDC
Blue wire
Ground
Brown wire
Pulse DC power
White wire
Pulse output
Modbus Output
Black wire
24 VDC
Blue wire
Ground
Gray wire
Data +
Pink wire
Data -
White wire
Signal Ground (only connect if needed)
4…20 mA Output, Loop Powered Black wire
10…36 VDC
Blue wire
4…20 mA signal
Table 1: Wiring
Grounding
Ground the power supply to DC ground or good earth ground . DO NOT connect to AC ground .
Tnalog Version, 4…20 mT
To wire for power, use 24 gauge with multi-pin power connector supplied with meter . Do not run the wire over transformers,
motors, or any other magnetic field generating devices . Connect the end of wire to 24V DC for loop powering the device .
24V DC
Power Supply
Data Logger or PLC
4 . . . 20 mA
Analog Input
Positive
Negative
Input
Negative/
Common
+
_
_
_
BLACK Wire (Positive)
BLUE Wire
Flow Meter
+
-
Figure 3: Analog version wiring diagram
