GT21R Paperless Recorder

With the rapid development of microelectronics technology, computer technology and communication technology, the technical update of display and record control instrument used in industry is more and more rapid, the old control room instrument is replaced by new, more reliable, more powerful and more convenient control room instrument.our company has successfully launched a series of meters to meet the needs of various users in different occasions. This series of instrument has the characteristics of small daily maintenance workload, low operating cost, good reliability, flexible application and so on, and is suitable for modern automatic control. Characteristics ● 4-channel input ● Compatible with multiple signals ● Various display interfaces ● Data can be exported and viewed
  • Specification

Technical Specifications & Engineering Parameters

Display Panel Monochrome Blue-mode LCD screen (128×64 dot matrix with white LED backlight)
Input Channels 1 to 4 universal isolated input channels
Supported Sensors Pt100, Cu50, K, S, E, T, J, 4-20mA, 0-10mA, 0-5V, 1-5V
Recording Accuracy ±0.2% F.S.
Data Retention Internal non-volatile Flash memory (Data safely preserved for 10+ years without backup battery)
Export Functionality Dedicated USB flash drive interface for history file copy and PC reporting
Alarm Outputs Up to 4 relay alarm contacts (250V AC / 3A)
Auxiliary Power Supply Integrated 24V DC / 30mA sensor distribution loop
Serial Port RS485 communication supporting standard Modbus-RTU protocol
Operating Power 100-240V AC 50/60Hz or 24V DC
Dimensions 96×96×105mm (Panel cutout 92×92mm)


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