The main function of this product is to centralized measurement convert multi-channel standard DC transmission signal into digital signal output, can measure 8 channels of current and 4 channels of voltage input signals. Multi - channel DC intelligent transmitter can be widely used in a variety of industrial control and measurement systems, and mainly measure the 4 ~ 20mA or 0 ~ 10V output signal of a variety of pressure, temperature, flow and power transducer. Output communication interface is RS485 or RS232, wide range of power supply DC 9 ~ 30V, using the standard MODBUS-RTU communication protocol.

Input signal
Input: 8 channels of 0-20mA current and 4 channels of 0-10V voltage.
Overload: overload 1.2 times the range can be measured correctly, overload 2 times the range of input 1S is not damaged;
Current Channel: the input impedance is 110Ω;
Voltage Channel: the input impedance is > 100KΩ;
Data update cycle: 800mS；
Communication output
Output interface: RS-485 (twisted pair line) ±15KV ESD protection, or RS-232 interface ±2KV ESD protection;
Communication protocol: standard MODBUS-RTU protocol;
Baud rate: 1200, 2400, 4800, 9600(default), 19200 bps;
Parity: Odd parity, even parity, no parity (default), set by software;
Address: 01H to FFH, factory default 01, set by software;
Isolation: voltage and current input are isolated from power supply and communication, the isolation voltage is 2500V DC;

Parameter Name	Parameter Value
Signal type	analog
Associated function	transmitter isolator
Other characteristics	DIN rail RS485 digital