GFK30空门的开放还是非开放式的国家传感器

GeneralThe GFK30 type mine air door open and closed state sensor is a magnetically driven position switch sensor, and is a product of mine intrinsic safety type. The product can be installed on the air door of the mine laneway of any level to monitor the open and closed state of the air door in the underground environment of the coal mine with methane and dust explosion hazard, and provide the information of the air door state for the ventilation management. The sensor can be used together with the mine monitoring and supervising system, and the passive switch contact signal or the current signal can be directly provided to the mine monitoring and control system for collection and management. Main Technical Specifications1. Explosion-proof type: mine intrinsic safety type ExibI (150 )2. Operating distance: more than 30 mm but less than 70 mm3. Protection level: IP544. Signal output type: conversion contact output type5. Transmission distance of the output signal: ≥ 2 km6. External dimensions: switch component 138 mm × 52 mm × 31 mm7. Material of the trigger magnet: oxide magnet