Product overview
The AT-FG99 is a wall-mounted multi-gas alarm controller engineered for large industrial systems. It supports up to 99 detectors for flammable, toxic, and oxygen monitoring, delivering fast response (alarm communication within 2 seconds) and robust RS-485 networking with strong anti-interference performance. A clear LCD shows gas type, concentration, event records, and fault/status in real time, while audible & visual alarms (≥80 dB) ensure on-site awareness.
The controller offers 4 configurable relay outputs (NO/NC and pulse) for fans, valves, E-stops, or beacons, and stores up to 1050 events for traceability. Powered by AC 220 V, 50 Hz, the AT-FG99 operates in −20 °C to +50 °C and ≤95% RH environments—ideal for chemical plants, oil & gas facilities, boiler rooms, laboratories, and integrated fire/gas detection systems.
Connects up to 99 detectors (flammable/toxic/oxygen)
Fast alarm comms: ≤ 2 s over RS-485 (anti-interference)
4 configurable relays (NO/NC/pulse) for fans/valves/beacons
LCD with real-time gas type/value, records, and fault indicators
Audible & visual alarms ≥80 dB
Event log up to 1050 records
24/7 industrial duty, wall-mounted, AC 220 V / 50 Hz
| Parameter | Description |
|---|---|
| Detection Gas | Flammable / Toxic / Oxygen (via external detectors) |
| Channels | Up to 99 detectors |
| Detection Range* | 0–100% LEL / 0–N% vol / 0–N μmol/mol (sensor-dependent) |
| Basic Error | < ±5% F.S. |
| Display | LCD (gas type, value, records, fault/status) |
| Alarm Output | 4 relays, configurable NO/NC/pulse, 5 A @ 250 VAC |
| Communication | RS-485 (multi-drop bus) |
| Event Memory | Up to 1050 records |
| Alarm Indication | Audible & visual alarms ≥80 dB |
| Power Supply | AC 220 V, 50 Hz |
| Operating Temp. | −20 °C to +50 °C |
| Operating Humidity | ≤ 95% RH (non-condensing) |
| Installation | Wall-mounted |
