Description
Features:
- Accurate and stable measurement
- Compact housing providing optimal airflow
- Visual and acoustic alarms
- Two relays for alarm / ventilation control
- Two analog outputs settable to 4-20 mA or 0-10 V
- RS485 Modbus RTU digital interface
Specifications:
Calibration: Methane CH4
Sensing method: long-life metal-oxide gas sensor
Sampling method: diffusion
Detection range: 0…100% LEL (0…5 %vol) CH4
Resolution: 0,1 %LEL (50 ppm) CH4
Accuracy: ± 2 %LEL (± 0,1 %vol) CH4
Signal update: every 1 second
Response time: ~15 seconds
Maintenance interval: 12 months
Sensor lifetime: > 10 years
Self-diagnostics: full functionality check at start-up
Warm-up time: ≤ 1 min
Power supply: 11…30 VDC or 90…265 VAC
Power consumption: < 2 W
Digital interface: RS485, Modbus RTU protocol
Alarms: blinking LED, buzzer 85 dBi
Analog outputs: 2 × 4-20 mA / 0-10 V, user settable
Output relays: 2 × SPST relays (closing contact), 250 VAC / 30 VDC, 5 A max
Default alarm set-points: 20 %LEL / 50%LEL
Enclosure: ABS plastic with ventilation slots, wall mount, protection class IP20
Dimensions: H85 × W85 × D37 mm
Operating environment: residential, business and industrial indoor spaces
Operating conditions: -30…+70 °C, <95 %RH, without condensation
