5
Setup
2.1
Wiring
2. Setup
ODO RTU is configured with native Modbus output built around the RS485 standard physical layer. The flying lead cable is
terminated with its ends trimmed and tinned for easy wiring. These ends can be connected to a third party Modbus capable PLC
or data logger.
Wire Color
Purpose
Red
Power
Green
Ground
White
Modbus A
Black
Modbus B
2.2
Power
ODO RTU requires 10-16 VDC with a maximum current of 15 mA. The sensor will pull 0.12 W while powered. Once power is
supplied to the sensor, the probe will complete a 1-2 second power up sequence before it can be queried for a value. Please note,
while the probe can return a value, if the sensor cap is not equilibrated, the returned value may be inaccurate. This is not an issue if
the sensing cap has been continuously submerged in the sample.
