GW 399

The 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.

• Use of various types of measurement sensor
• Direct warning status recognition, via different colors of the LC-Display background illumination
• Menu-aided operation, via 2 keys
• Three alarm thresholds individually adjustable from 5-100% of test range
• Three floating alarm outputs for driving additional warning and control systems
• Floating relay contacts
• Serial output, RS 232 or RS 485 LON®-interface
• 4-20 mA current output
• Different housings are available e. g. 19" rack, 
  panel mounting, wall-mounted housing
• Up to 10 units per rack
• 1 control unit configurable as master, for supervision of central alarms and communication control systems
• High degree of reliability
• Low current consumption
• Possibility of uninterruptible power supply

• Monitoring of heating systems
• Garages and tunnels
• Liquid gas rooms
• Laboratories
• Cold storage houses and air conditioning plants
• Plastic processing plants
• Chemical industries
• Paint manufacturing plants
• Concentration measurement of O2
• and many more

Signal horn, warning light, warning banner, ventilation control, test meters, plotter. 
Additional accessories are available, depending on the system ordered.