Voltage measurement transducer MB-1U-1

Voltage measurement transducer MB-1U-1


With Modbus RTU.
The transmitter MB-1U-1 is designed to measure the voltage and exchange data using the RS-485 port in accordance to MODBUS RTU protocol.

The module measures the value of input voltage (AC or DC voltage circuit). Reading the value of the input voltage and setting all parameters of communication are realised  by the user via RS-485, using MODBUS RTU communication protocol.
Switching power supply voltage is indicated by a green LED U. The correct exchange of data between the module and the second device is indicated by a yellow LED Tx.
The transmitter measures the RMS voltage TrueRMS, which ensures high measurement accuracy even with distorted waveforms.

Reset communication settings
Under cover is available code switch.
Details of resetting available in the instructions below.

Power supply voltage9├Ě30 V DC
WE-WY breakthrough voltage3 kV
Communication protocolMODBUS RTU
The type of workSLAVE
Speed ??- adjustable1200├Ě115200 bit/s
Data bits8
Stop bits02-sty
Bits of parityEVEN / ODD / NONE
Maximum measuring error0,50%
Processing error┬▒0,5%
Measurement range TrueRMS - alternating AC voltage0├Ě285 V
Measurement range TrueRMS - DC voltage0├Ě400 V
Maximum power consumption50 mA
Precision of reading the register1 V
Sampling frequency10 Hz
Relative air humidity (for 3085%
terminalscrew terminals 2,5 mm┬▓
Tightening torque0,4 Nm
dimensions1 module (18 mm)
Assemblyon rail 35 mm
Level of securityIP20
Description of inputs/outputs

Module in RS-485 network

Network address setup

Reset communication settings

Parameters of MODBUS RTU protocol