AT-EG01 H2S Gas Detector is designed for fixed hydrogen sulfide gas monitoring applications. According to the product manual, the detector is equipped with a corresponding sensor module based on the target gas. Target gas, detection range and alarm setpoints are specified on the product nameplate.
The detector provides real-time gas concentration display and current alarm status indication. It supports 4-20mA analog signal output, RS485 Modbus RTU communication and passive relay output for gas alarm control panel or industrial monitoring system integration.
With die-cast aluminum housing, Ex d IIC T6 explosion-proof rating, IP66 ingress protection and DC24V power supply, AT-EG01 H2S Gas Detector is suitable for industrial gas safety monitoring and hazardous area gas detection applications.
Real-time H2S gas concentration monitoring
Alarm status indication
High-resolution color screen with menu interface
Target gas, detection range and alarm setpoints specified on product nameplate
Sensor module configured according to H2S gas application
DC24V power supply
4-20mA analog output
RS485 Modbus RTU communication
Passive relay contact output, max. 250VAC, 2A
Two-level alarm output
Standard or pulse relay output mode
Multi-point calibration function
Modular design for easier wiring and maintenance
Configuration backup and one-button factory reset
Die-cast aluminum housing
Explosion-proof rating: Ex d IIC T6
Ingress protection: IP66
ATEX certificate available, user-confirmed
Not specified in the source file.
| Item | Specification |
|---|---|
| Model | AT-EG01 |
| Product Type | H2S Gas Detector |
| Target Gas | Hydrogen Sulfide / H2S, as specified on product nameplate |
| Detection Range | As specified on product nameplate |
| Alarm Setpoints | As specified on product nameplate |
| Detection Principle | Catalytic Combustion / Electrochemical / Infrared / Semiconductor / Photoionization PID, according to gas configuration |
| Power Supply | DC 24V |
| Housing Material | Die-cast aluminum |
| Conduit Connection | M20 × 1.5 internal thread |
| Explosion-Proof Rating | Ex d IIC T6 |
| ATEX Certificate | Available, user-confirmed |
| Ingress Protection | IP66 |
| Dimensions | 185 mm × 143 mm × 82 mm |
| Output Signal | 4-20mA analog output, RS485 Modbus RTU, passive relay contact |
| Relay Contact Capacity | Max. 250VAC, 2A |
| Operating Temperature | -40°C to +70°C |
| Relative Humidity | 10% to 93% RH, non-condensing |
| Atmospheric Pressure | 86 kPa to 106 kPa |
| Installation Environment | Area free from significant impact, vibration and corrosive substances |
| Weight | ≤ 1.5 kg |
| Sensor Life | Typically 2–3 years in clean air |
Not specified in the source file.
Detection range, alarm setpoints and H2S sensor configuration should be confirmed according to the product nameplate and project requirement.
4-20mA 3-wire connection: 24V+, 24V-, Signal
RS485 4-wire connection: 24V+, 24V-, A+, B-
Communication settings: 9600 / 4800 baud, 8 data bits, no parity, 1 stop bit, Modbus RTU protocol
Relay output: passive relay contact, max. 250VAC, 2A
Low alarm and high alarm output modes are available.
The detector must be installed where gas leakage is likely to occur.
The optimal mounting position should be selected according to the density of the target gas relative to air and the actual leakage risk. The sensor element should face downward.
General installation notes:
Avoid strong impact and vibration.
Avoid strong electromagnetic interference.
Ensure easy access for maintenance and calibration.
Keep a minimum 0.5 m clearance from surrounding pipes and equipment.
Route the cable through the cable gland.
A sealing operation with 2 cm of epoxy resin potting compound is required at the wiring port.
Do not open the cover when energized.
Use proper grounding.
Wastewater treatment areas
Sewage plant monitoring areas
Pump stations
Industrial gas monitoring areas
Chemical plants
Oil and gas facilities
Gas pipeline areas
Confined industrial spaces
Gas alarm control panel systems
Hazardous industrial areas
