The ethanol concentration alarm, liquid ammonia detection alarm, liquid ammonia detection alarm using a wall-mounted cabinet design, the panel status display directly, simple to install, easy to operate. Detectors using industrial explosion-proof devices, gas sensors using imported components, high sensitivity, wide detection range. Liquid ammonia leak alarm electronic circuits using advanced microcomputer technology, all-digital signal processing, the operation is simple, intuitive; sensor or transmission line failure will automatically detect and fault alarm concentration alarm status can be automatically stored, using the master, prepared dual power ways of working to ensure the continuity of the work. The machine work status is stable and reliable, low power consumption. Ethanol concentration alarm, liquid ammonia detection alarm, gas alarm controller is widely used in metallurgy, petroleum, petrochemical, chemical, light industry, coking, municipal, gas, pharmaceutical, sewage treatment, and many specific industries and areas. Ethanol gas alarm using imported gas sensors, with high precision, reliability; sensor due to the discovery of lead to functional failure detector can automatically identify and police, effectively avoid false negatives. When the ethanol gas alarm to detect gas concentrations in the environment to meet or exceed preset alarm value, the ethanol gas alarm by shielding the cable signal to the controller, the controller immediately audible alarm, the ethanol gas alarm while the startup exhaust devices or closing the solenoid valve to cut off the gas source, in order to achieve the purpose of security. Ethanol the concentration alarm parameters certification ◆ Explosion-Proof: Exd II CT6 ◆ type recognition: Fire Electronic Product Conformity Assessment Center ◆ Application Standard: GB15322.1-2003 Electrical ◆ Power Supply: DC12V-30V ◆ signal: digital signal ◆ terminals : suitable for wire cross section 0.5 ~ 2.5mm2 ◆ connecting cable: four-wire 2 * 1.5mm2 two-color twisted pair (signal) and 2 * 2.5mm2 the color parallel lines (power) ◆ wiring: four-wire ◆ Accuracy: ± 5 % FS ◆ Response time: less than 30s environment ◆ IP rating: IP65 ◆ Temperature range: -40 ° C to 65 ° C (catalytic combustion) | -40 ° C to 65 ° C (electrochemical, non-long-term) ◆ Humidity range: 10 to 95% RH (non-condensing) ◆ Pressure range: 86 ~~ 106KPa ◆ Storage temperature: -40 ℃ ~ +65 ℃ ◆ Transmission distance: ≤ 1200m detection ◆ detect gas:% LEL flammable and explosive | toxic harmful ppm ◆ detection method : the natural diffusion ◆ detection range :12-15m2 ethanol alarm ethanol leakage alarm advance warning of ethanol concentration, to avoid poisoning and casualties. Manufacturers the flexibility to choose according to the specific circumstances of the scene. Using imported ethanol alarm sensor as detection devices, detection speed and high accuracy.