ApplicationThe multi-channel gas warning system GW 399 continuously monitors the ambient air and provides an early warning of hazardous, explosive and non-combustible gases and vapours. FeaturesUse of various types of measurement sensorDirect warning status recognition, via different colors of the LC-Display background illuminationMenu-aided operation, via 2 keysThree alarm thresholds individually adjustable from 5-100% of test rangeThree floating alarm outputs for driving additional warning and control systemsFloating relay contactsSerial output, RS 232 or RS 485 LON-interface4-20 mA current outputDifferent housings are available e. g. 19" rack, panel mounting, wall-mounted housingUp to 10 units per rack1 control unit configurable as master, for supervision of central alarms and communication control systemsHigh degree of reliabilityLow current consumptionPossibility of uninterruptible power supplyFields of ApplicationMonitoring of heating systemsGarages and tunnelsLiquid gas roomsLaboratoriesCold storage houses and air conditioning plantsPlastic processing plantsChemical industriesPaint manufacturing plantsConcentration measurement of O2and many more