Available Gases and ranges
Gas Range Alarm UK Alarm USand ROW
Flammable 0-100% LEL 20% LEL 10% LEL
Oxygen 0-25% 19.5/23.5% 19.5%
Hydrogen Sulphide 0-50ppm 5ppm 10ppm
Carbon Monoxide 0-500ppm 30ppm 35ppm
Sulphur Dioxide 0-10ppm 1ppm 2ppm
Chlorine 0-5ppm 0.5ppm 0.5ppm
Nitrogen Dioxide 0-10ppm 1ppm 3ppm
Ammonia 0-50ppm 25ppm 25ppm
Ozone 0-1ppm 0,1.ppm 0.1ppm
Hydrogen 0-1000ppm N/A N/A
Hydrogen Cyanide 0-25ppm 5ppm 5ppm
Hydrogen Chloride 0-10ppm 1ppm 1ppm
Hydrogen Fluoride 0-10ppm 5ppm 5ppm
Phosphine 0-5ppm 0.2ppm 0.2ppm
Fluorine 0-1ppm 0.1ppm 0.1ppm
Ethylene Oxide 0-10ppm 5ppm 5ppm
Nitric Oxide 0-100ppm 25ppm 50ppm
Other ranges and alarm levels are available on request. Each unit can have twoinstantaneous alarms levels set. Toxic units also have Time Weighted Averagealarms.Flammable gas calibration is available for methane, propane, butane, pentane,
hydrogen and ethylene as standard.