Lower explosive limit gas sensor Pellox

CH4LELcatalytic

This device is designed to detect concentrations with a predetermined 5% threshold of the LEL (Lower Explosive Limit) which is 0.25% by volume for CH4. It is based on a catalytic oxidation sensor expressly designed for the measurement of combustible gases. The use of catalytic sensors has several advantages: 1) Excellent zero stability 2) Linear output 3) Short heating time 4) Longevity The device is equipped with an SPDT output and when an “alarm” is active, a visual alarm (red led on the upper part of the housing) and an acoustic alarm are also activated, with deactivation of the relay output. The relay output is also deactivated if there is a fault in the detector. The Pellox is placed in a small and light box to be fixed on a DIN rail and is also equipped with quick and removable connections for a quick and convenient commissioning. Technical specifications Signaling: acoustic, visual and relay Alarm calibration: at 25% of the LEL (or other calibration upon request) Alarm contact: fail safe n.c. SPDT Power supply: 18-36 VDC Maximum consumption: 5 W Maximum current on relay: 1A @ 24V AC or 1A @ 24Vdc Dimensions: 80x36x125 mm Connections: removable screw-down Features Small size Extreme ease of installation and use Low price Optical, acoustic and relay alarm signaling