1. Features of the Detector:

(1) Provides a 2.5V power supply to the sensor.

(2) Converts gas concentration into an electrical signal.

(3) Converts analog signals into digital signals.

(4) Performs concentration value conversion and generates alarm and fault flags through judgment.

(5) Uploads concentration values and flag bits for the ALH7000 gas alarm controller to judge, display, record, print, etc.

(6) Under the control of the ALH7000 controller, it allows setting, modifying, and querying the number and range of gas concentration alarm setpoints.

(7) Under the control of the ALH7000 controller, it enables rewriting of its own address code.

2. Technical Specifications of the Detector

(1) Test gases: Methane, Propane, Isobutane

(2) Measuring range:

(3) Alarm setpoint:

(4) Power supply: DC24V

(5) Power consumption: 1.2W

(6) Environment (outdoor type)

Temperature: -40℃ to 70℃

Humidity: ≤95%RH

(7) Atmospheric pressure: 86KPa to 106KPa  

(8) Insulation resistance: ≥100MΩ under normal conditions

≥1MΩ at 94%RH humidity

(9) Operating mode: Continuous

(10) Explosion-proof method: Flameproof

(11) Sampling method: Diffusion

(12) Storage

Temperature: -50℃ to 80℃ Humidity: ≤95%RH

(13) Lifespan: Three years

(14) M-bus signal transmission distance <1200m (twisted pair, wire diameter ≥0.75mm2)