GWA 2000

  Go


GWA 2000 | Single-channel Gas Warning Unit


Application  

The single-channel gas warning unit GWA 2000 continuously monitors the ambient air and provides an early warning of hazardous, explosive and non-combustible gases and vapours.
Fields of Application  

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

  • 6-section keybord and illuminated 4-line LC-Display for indicating actual values, half-hourly average values and fault messages, all clear text encoded
  • Ready, fault and gas warning display
  • Menu-assisted settings for the equipment parameters, via 6-section keyboard
  • Two alarm thresholds for each sensor, independently adjustable from 5 to 100% of the measurement range; facility for forming half-hourly average value
  • A maximum of 12 floating alarm outputs for controlling extra warning and control devices
  • Floating change-over contacts for fault, siren and warning banners
  • Serial interface output RS 232 for connecting a printer or PC
  • 4–20 mA current interface
  • Plastic, wall-mounted housing (IP 54)
  • High operational reliability
  • Low current consumption
  • Easy installation
  • USP unit available
Accessories  

Signal horn (siren), warning light, warning banner, test meters, plotter, Stand-by power supply UPS 2000-24 V.

Additional accessories will be offered, according to the system required. An early warning of dangerous, explosive and non-combustible gases and vapours.
Product data sheet  

Examples of measurable gases  

Gas Formula
Acetylene C2H2
Ether C4H10O
Alcohol e.g. C2H6O
Ammonia NH3
Petrol
Butane C4H10
Chloroform CHCl3
Hydrogen chloride HCl
Helium He
Carbon dioxide CO2
Carbon monoxide CO
Methane (natural gas) CH4
Neon Ne
Propane C3H8
Oxygene O2
Carbon tetrachloride CCl4
Toluene C7H8
Hydrogen H2
Xylene C8H10

Technical Data  

Sensors: - Infrared sensor
- Semiconductor sensor
- Heat reaction sensor
- Thermal conductivity sensor
- Chemical sensor
Ranges: CO   0 - 300 ppm
NO2  0 - 30 ppm
CH4  0 - 100 % LEL
CO2  0 - 10 Vol %
further ranges on request
Accuracy: < 3 % f.s.d.
Ambient temperature: +14 °F to +113 °F
Temperature effects: < 3 % for ± 20 °C variation
Setting time (t90): < 60 s
Installation: Wall-mounting
Protection type: IP 54
Output signal: RS 232 interface
3 Alarm relays
1 Fault relay
Analog output 4(0) - 20 mA
Relay rating: 230 V, 450 VA
other voltages on request
Voltage supply: 115 V, 60 Hz
230 V, 50 Hz (optional)
24 V / DC (optional)
Consumption: 14 VA
Dimension (WxHxD): 7.9 x 6.3 x 3.54 inch
Weight: approx. 3.52 lbs