The AT-EM02 Addressable Explosion-Proof Manual Call Point is designed for manual fire alarm activation in hazardous industrial areas. When a fire is confirmed, the user presses the operating element, and the device sends an alarm signal to the ANWETECH addressable fire alarm control panel through the addressable loop.
The control panel receives the alarm signal, displays the coded address, and indicates the alarm location of the manual call point. With electronic addressing, polarity-insensitive two-wire loop connection, and explosion-proof enclosure design, the AT-EM02 is suitable for industrial fire alarm projects requiring reliable manual alarm activation in hazardous areas.
It is suitable for Zone 1 and Zone 2 explosive gas atmospheres, as well as Zone 21 and Zone 22 combustible dust environments.
Manual fire alarm activation for hazardous-area applications
Addressable two-wire loop device for intelligent fire alarm systems
Explosion-proof enclosure for gas and dust hazardous environments
Electronic addressing with one loop address within 1–324
Reusable operating element, no glass replacement required
Special key reset after manual alarm activation
Suitable for wall mounting or post mounting installation
Optional rain shield and anti-tamper shield for harsh environments
Addressable manual call point for intelligent fire alarm control systems
Explosion-proof design for hazardous-area fire alarm applications
Polarity-insensitive two-wire addressable loop connection
Electronically addressed for easy installation and commissioning
Self-locking alarm mechanism after pressing operation
Red alarm indication when the device is activated
Manual reset by special key
Compatible with hazardous-area installation requirements
Suitable for oil & gas, chemical, fuel storage, industrial and dust environments
Rain Shield
Anti-Tamper Shield
Explosion-Proof Cable Gland
Post Mounting Bracket / Mounting Pole
| Item | Specification |
|---|---|
| Model | AT-EM02 |
| Product Type | Addressable Explosion-Proof Manual Call Point |
| Explosion-Proof Rating | Ex db IIC T6 Gb / Ex tb IIIC T85°C Db |
| Applicable Hazardous Area | Zone 1 and Zone 2 explosive gas atmospheres; Zone 21 and Zone 22 combustible dust atmospheres |
| Operating Voltage | Loop 24V DC, 18V–28V |
| Standby Current | < 0.3 mA |
| Alarm Current | < 2 mA |
| Addressing Method | Electronically addressed |
| Address Range | One address within 1–324 |
| Wiring | Polarity-insensitive two-wire addressable loop |
| Initiating Mode | Manual pressing operation |
| Reset Mode | Manually reset by special key |
| Indicator | Normal: polling/location indication; Alarm: red alarm indication remains lit |
| Ingress Protection | IP45 / IP65 |
| Operating Temperature | -20°C to +50°C |
| Operating Relative Humidity | ≤95% RH, non-condensing |
| Operating Atmospheric Pressure | 80 kPa to 110 kPa |
| Conduit Entry Thread | G 3/4" |
| Weight | Approx. 1 kg |
| Mounting Method | Wall mounting or post mounting |
The AT-EM02 connects directly to the addressable loop of the ANWETECH intelligent fire alarm control panel. The loop connection is polarity-insensitive and carries both power and communication for the manual call point.
Each AT-EM02 occupies one address on the addressable loop. During commissioning, the device should be assigned one valid address within the 1–324 address range, registered on the fire alarm control panel, and tested to confirm alarm address display, device type, location text, indicator status, and event record.
External equipment such as pumps, fans, solenoid valves, sounders, BMS or PLC signals should not be connected directly to the manual call point. These devices should be controlled through the fire alarm control panel and suitable input/output modules according to project design.
Oil and gas facilities
Chemical plants
Petrochemical process areas
Fuel storage areas
Loading and unloading areas
Paint spray booths
Coating workshops
Hazardous material warehouses
Battery rooms
Industrial utility areas with hazardous classification
Combustible dust environments
Hazardous-area fire alarm systems
Explosion-proof fire alarm projects
