AT-EG01 NH3 Ammonia Gas Detector is designed for fixed ammonia gas monitoring applications. According to the product manual, the detector can be equipped with a corresponding sensor module according to the target gas. The target gas, detection range and alarm setpoints are specified on the product nameplate.
The detector displays real-time gas concentration and alarm status. It can transmit gas concentration and alarm signals through 4-20mA analog output, RS485 Modbus RTU communication and passive relay contact output.
With die-cast aluminum housing, Ex d IIC T6 explosion-proof rating, IP66 protection and DC24V power supply, AT-EG01 NH3 Ammonia Gas Detector is suitable for industrial ammonia leakage monitoring and gas alarm system integration.
Real-time NH3 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 NH3 ammonia 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 structure for wiring and maintenance
Configuration backup and factory reset function
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 | NH3 Ammonia Gas Detector |
| Target Gas | NH3 Ammonia, 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 NH3 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
The relay output can be configured as standard or pulse mode for alarm or linkage signal output according to project design.
The detector must be installed where ammonia leakage is likely to occur.
For gases lighter than air, the detector should be installed near the potential leakage source, at a height of 0.5 to 2 meters above the leakage source. The sensor element should face downward.
General installation notes:
Avoid strong impact, vibration and 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 through internal and external grounding bolts.
Cold storage facilities
Ice manufacturing plants
Industrial refrigeration areas
Refrigeration machine rooms
Compressor rooms
Ammonia valve stations
NH3 pipeline areas
Food processing refrigeration areas
Industrial cooling systems
Gas alarm control panel systems
