產(chǎn)品名稱：GTC-520F控制器（韓國），如下圖：
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GTC-520F控制器，韓國gastron隔爆型單通道氣體報警控制器（匹配在GASTRON各種規(guī)格的氣體檢測儀上面）
GTC-520F
? Integrated flame proof receiver with built-in Microprocessor
? Usable in explosion hazardous area with flame proof structure
? Connectable with various types of gas detectors
? Easy installation with a wall mount type
? Gas concentration display with 4-digit & 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 communication (Option)
? Programmable alarm setting (Level, Time delay)
? Peak hold
? Self diagnosis
? Integrated flame proof receiver with built-in Microprocessor
? Usable in explosion hazardous area with flame proof structure
? Connectable with various types of gas detectors
? Easy installation with a wall mount type
? Gas concentration display with 4-digit & 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 communication (Option)
? Programmable alarm setting (Level, Time delay)
? Peak hold
? Self diagnosis
| EXPLOSION PROOF TYPE TYPE GAS DETECTOR RECEIVER GTC-520F SERIES | |
| Model | GTC-520F |
| Operation display | 6-LED (Power, 3-stage alarm, Trouble, Stand-by) |
| Measuring display | 4-Digit FND & Bar-graph |
| Measuring range | 1-9999(programmable) / %LEL, ppm, %Vol |
| Alarm display | Visual 3-stage alarm, Trouble LED |
| Audible : buzzer | |
| Alarm output signal | 3-Stage Alarm, Trouble / AC250V 5A relay contact (SPDT) |
| Shut-off valve control signal (DC 12V) | |
| Alarm level set | Programmable within 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 | |
| Relay output on/off | |
| Operating temperature | -20℃ ~ +50℃ |
| Operating humidity | 5~99%RH(non-condensing) |
| Operating power | Standard : AC90V~250V / 12W max |
| 24V DC (Option) / 280mA max | |
| Dimensions | 290x347x137 (WxHxD)mm |
| Weight | 12kg |
| Approval | Explosion proof type (Ex d IIB+H2 T6 IP65) KCs |
廠家品牌：韓國品牌 GASTRON氣體探測器
資質(zhì)編號：GT-AG0755-CN02
產(chǎn)品系列：氣體探測器，氣體檢測儀（可燃?xì)怏w、有毒氣體等）
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