Temperature Transmitters

I. Overview

The LU-GCL12 one-input two-output smart transmitter is a high-performance, high-reliability intelligent industrial controller built on an entirely new design concept. It is widely used in automatic control systems for temperature, flow, pressure and level in the semiconductor/photovoltaic, chemical, ceramics, metallurgy, petrochemical and heat treatment industries.

Main features:

Equipped with an advanced ARM processor, it offers fast processing speed, simple interface circuitry, and high reliability and stability.

It covers signals from thermocouples and RTDs of all common graduation types as well as standard voltage and standard current signals; the fast and accurate nonlinear correction algorithm ensures the accuracy of digital sampling.

It provides a standard analog transmitter output function, with the transmitter type and transmitter range freely configurable.

Dual-row 4-digit LED display for simple and easy human-machine operation; the input signal type can be switched freely.

Excellent immunity to interference; complies with the industrial level-3 EMC test requirements.

2. 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

Other technical parameters:

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 s

Open thermocouple/open RTD and over-range detection: displays 5b

Output modes: 0~10mA current output (load capability < 1000 ohm), 4~20mA current output (load capability < 500 ohm), 0~20mA current output (load capability < 500 ohm)

Power supply: 20-35VDC / 85~265VAC

Overall power consumption: less than 4W

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