Gas Range Alarm

Combustible 0-100%LEL 10%LEL

Oxygen 0-25% 19.5/23.5%

Hydrogen Sulfide 0-50ppm 10ppm

Carbon Monoxide 0-500ppm 35ppm

Sulfur Dioxide 0-10ppm 2ppm

Chlorine 0-5ppm 0.5ppm

Nitrogen Dioxide 0-10ppm 3ppm

Nitric Oxide 0-100ppm 25ppm

Ammonia 0-50ppm 25 ppm

Ozone 0-1ppm 0.1 ppm

Hydrogen 0-1000ppm N/A

Hydrogen Cyanide 0-25ppm 5 ppm

Hydrogen Chloride 0-10ppm 1 ppm

Hydrogen Fluoride 0-10ppm 1 ppm

Phosphine 0-2ppm 0.2 ppm

Ethylene Oxide 0-10ppm 5ppm

Other ranges and alarm levels are available on request. Each gas channel canhave two instantaneous alarm levels set. Toxic channels also have Time

Weighted Average alarms.

Combustible gas calibration is available for methane, propane, butane,pentane and ethylene as standard.

Typical response times Combustible 20 s, Toxic gas 20 s, Oxygen 10s

Audible Alarms 90 dBA at 1ft

Multiple alarm sounds allow selection of distinctive tones for different alarm levels

Visible Alarms Dual colour red/blue flashing LED pair in gas hazard

Vibrating alarm Internal vibrating alarm

Display Graphic LCD with backlight, giving simultaneous display for all gas channels. Graphic symbols for battery (with proportional indication of remaining operation time), pump operation, healthy operation or fault warning. Start up indication when calibration is due within 30 days, calibration overdue, or service required.