GD750 - ATEX Certified Refrigerant Gas Detector for Zone 2 with Display, Bluetooth, and Relays
The GD750 detector is designed for explosive atmospheres (ATEX Zone 2). It supports 4-20mA signals, Modbus, and 3 relays, and integrates Bluetooth for configuration and maintenance without opening the enclosure. Compatible with s… See more...
The GD750 detector is designed for explosive atmospheres (ATEX Zone 2). It supports 4-20mA signals, Modbus, and 3 relays, and integrates Bluetooth for configuration and maintenance without opening the enclosure. Compatible with sensors for refrigerants and CO₂, it features a replaceable sensor cartridge, IP67 protection, and a wide range of outputs. Reliable, compact, and safe.
Standard Specifications
Certification: ATEX Zone 2
Power supply: 12–24 VDC
Outputs:
- Analog: 4–20 mA, 1–5 V, 2–10 V
- Digital: Modbus RS485
- 3 Relays (2 alarm, 1 fault)
Acoustic alarm: 80 dB buzzer at 10 cm
Remote sensor: up to 3 meters distance
Compatible sensors:
- Electrochemical (NH₃)
- Infrared (CO₂, R134a, R404a, R407c, R410a, R507, R449a, R32, R290, R600)
- Pellistor (R290, R600)
- Semiconductor (R134a, R404a, R407c, R410a, R507, R449a, R32)
Measurement ranges:
- Electrochemical: 0–1,000 ppm
- Infrared: up to 50,000 ppm or 5% Vol
- Pellistor: 0–100% LFL
- Semiconductor: 0–1,000 ppm
Operating temperature: –40°C to +60°C (sensor dependent)
Protection rating: IP67
Sensor cartridge: Replaceable
Bluetooth functions:
- Real-time measurement
- Calibration and electrical test
- Relay and Modbus configuration
- Electronic, serial, and firmware data display
Connections: 4 × M20
Options
NH3: GD750EA, GD750EAH
R290/R600: GD750PX (pellistor), GD750I8/I9 (IR)
CO2 (IR): GD750IC25, IC210, IC220, IC250
Semiconductors: GD750S1–S7
Custom versions: GD750IX, SX, PX
Model without display: GD700
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