3M hydrogen gas detector features a status LED, 12-24VAC or VDC, operation, SPDT alarm relay and N.C. trouble relay. Alarm relay set to 10% of the LEL (Lower Explosive Limit) of hydrogen. For use with fire and security alarm systems and suitable for protecting lab safety during hydrogen furnace running
Features
•3M Hydrogen Fixed Gas Detector, HD-11, %LEL, 12-24V, 1 relay •Flush mount design •12-24 VAC or VDC operation, and SPDT alarm relay •Loud alarm sound: approx. 85 db at feet •Mounts in standard 4 x 4 electrical box. •Alarm relay set at 10% of Lower Explosive Level (10% and 25% of LEL on HD-12). •N.O. sealed reed type dry contact relays •Recommended coverage: 900 sf •Easy installation. •No Maintenance or recalibration required. •Supervised system. •One 70W 110V- 240AC to 24 VDC power adaptor is included •One solenoid valve with 1/4" tube swaglok ( inlet abd 1/4 NPS-Female ( outlete ) included . It shall be connect to 24 VDC for operation
