Temperature Control Modules

I. Overview

The LU-924M04Y four-channel (LU-924M02Y two-channel) measurement and control module is a high-performance, highly reliable intelligent industrial measurement and control instrument with a brand-new design concept. It is designed to be connected with level, pressure and temperature sensors and transmitters to form level, temperature and pressure measurement and control systems of various ranges and specifications. It is widely used in semiconductor, photovoltaic, petrochemical, ceramics, metallurgy, petrochemical and heat treatment industries.

Main features:

Adopts an advanced ARM processor for fast processing; the interface components are simple and reliability and stability are high.

It covers signals such as thermocouples of various common graduation numbers, RTDs, standard voltages and standard currents; the fast and accurate nonlinear correction algorithm ensures the accuracy of digital sampling.

Abundant alarm outputs, with 4 alarm registers that can be freely combined.

Standard analog transmitter output function; the transmitter data source, transmitter type and transmitter range are freely configurable.

Dual-row 4-digit digital tube display; the human-machine interaction is simple and easy to use.

Plug-and-play modular structure and abundant output specifications, suitable for various application needs.

Standard RS485 communication, adopting the standard MODBUS communication protocol, with strong universality and high reliability.

Strong anti-interference performance; meets the requirements of industrial level 3 and above electromagnetic compatibility testing.

II Main technical specifications

• Input specifications and range:

Thermocouple: S (-50~1768), R (-50~1768), B (250~1820), K (-200~1372), N (-200~1300),

E(-200~1000),J(-200~1200),T(-200~400)

RTD: PT100 (-200~800), Cu50 (-50~150), Cu100 (-50~150),

Standard millivolt signal: custom 0~100mV

Standard resistance signal: custom 0~500 ohm

Standard voltage signal: 0~10V, 0~5V, 1~5V, custom 0~10V

Standard current signal: 4~20mA, 0~10mA, custom 0~20mA

• Measurement accuracy: class 0.2 (±0.2%FS±1 digit)

• Cold junction compensation: ±1°C

• Sampling resolution: 1°C or 0.1°C

• Sampling period: 0.5 second

• Thermocouple break, RTD break and over-range detection, displaying 5b

• Output mode: relay contact output

0~10mA current output (load capacity <1000 ohm)

4~20mA current output (load capacity <500 ohm)

• Alarm function: 5 alarm registers

           5 selectable alarm modes (single-sided hysteresis high alarm, single-sided hysteresis low alarm, double-sided hysteresis high alarm, double-sided hysteresis low alarm, fault alarm)

• Power supply: 18-52VDC

• Overall power consumption: less than 4W

• Operating environment: temperature -10~+60°C, humidity 0~80%RH