Product overview
The Branch-Line Gas Alarm Controller is a wall-mounted, industrial control panel designed to work with combustible and toxic gas detectors. It supports 1–4 channels, enabling real-time monitoring, dual-level alarms, and relay linkage to fans, valves, or emergency shutoff devices. A clear digital-tube display and intuitive button control simplify on-site operation, while 24/7 continuous duty ensures reliable protection in factories, warehouses, plant rooms, and utility corridors.
Each channel provides two configurable alarm thresholds with sound & light alarms (≥80 dB) and NO/NC relay outputs for on-site interlocks. The controller accepts AC 220 V, 50 Hz power and operates from -20 °C to 50 °C in high-humidity environments (≤95% RH). Standard 165 mm mounting hole spacing with Φ6 mm apertures supports quick installation and maintenance.
1–4 channels for combustible/toxic gas detectors
Dual alarm thresholds per channel (AL1/AL2)
≥80 dB sounder + red strobe for clear on-site indication
NO/NC relay outputs for fans/valves/shutoff interlocks
24/7 continuous operation with stable power design
Digital-tube display + tactile buttons for quick setup
Wall-mount design (165 mm spacing, Φ6 mm mounting holes)
| Parameter | Specification |
|---|---|
| Detection Targets | Combustible / Toxic Gas (via external detectors) |
| Channels | 1–4 detectors (branch-line) |
| Detection Range* | 0–100%LEL (combustible), 0–N μmol/mol, 0–N% Vol (sensor-dependent) |
| Basic Error | < ±5% FS |
| Display | Digital tube (numeric + status) |
| Alarm Mode | Sound & light alarms (≥ 80 dB) |
| Alarm Output | Two-stage relays per channel (AL1 / AL2), NO/NC |
| Relay Contact Rating | 5 A @ 250 VAC |
| Power Supply | AC 220 V, 50 Hz |
| Operating Temperature | −20 °C to +50 °C |
| Operating Humidity | ≤ 95% RH (non-condensing) |
| Installation | Wall-mounted, 165 mm hole spacing, Φ6 mm apertures |
