GASTRON Single Channel Gas Detector Receiver, GTC-520A

Connectable with various types of gas detectors, Large-scale digital concentration display and warning light can be applied for remote viewing. Gas concentration display with 3-digit, 4-digit,or Bar-graph (32 segment, 3-color LED). 3-color display according to alarm stages (Green, Yellow, Red). 3-stage alarm, 1-trouble LED display and relay contact output. Easy configuration of monitoring system with RS-485 Modbus isolated serial data communication (Option). Programmable alarm setting (Level, Time delay). Peak hold. Self diagnosis.

Specification:
Operation display: 6-LED(Power, 3-stage alarm, Trouble, Stand-by for maintenance)
Measuring display: 4-Digit 0.315”FND Bar-Graph(32 Segment, 3-color LED)
Measuring range: 1~999 (programmable) / %LEL, ppm, %vol
Alarm display: Visual : 3-stage alarm, Trouble LED, Warning Light Audible : buzzer
Alarm output signal: 3-Stage Alarm, Trouble/ AC250V 3A relay contact (SPDT) Shut-off Valve control signal (DC 12V)
Alarm level set: Programmable with in detection range
Input signal: 4-20mA DC(2-wire or 3-wire)
Output signal: 4-20mA DC Isolated RS-485 Communication Modbus (option)
Reset signal: Reset switch and remote control
Program set mode: Alarm value (1,2,3 alarm) Alarm time (instant & delay) 1~30min Alarm dead band Measuring value offset (SAD) Relay output on/off
Operating temperature: -20℃ ~ +60℃
Operating humidity: 5 ~ 99%.RH (non-condensing)
Dimensions: 135(W) x 105(H) x 81(D)mm
Weight: 580g