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PRODUCT.產(chǎn)品

Gas monitor unit- MWS 897

The multi-channel gas warning unit ADOS MWS 897 continuously monitors the ambient air and provides an early warning of hazardous, explosive and non-combustible gases and vapours.

It is suitable for the connection of 6?x “2-wire” or 3?x “3-wire” sensors.
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  • 資料下載
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
Oxygen O2
Carbon tetrachloride CCl4
Toluene C7H8
Hydrogen H2
Xylene C8H10



Technical Data
Sensors: Semiconductor sensor
Heat reaction sensor
Thermal conductivity sensor
Fuel cell
Infrared cell
Sensor inputs: 6 two-wire sensors
(e.g. TOX 592)
or 3 three-wire sensors
(e.g. GTR 196)
or 2 three-wire sensors +
4 two-wire sensors
Sensor supply: 19 V = / 200 mA
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: - 10°C to + 40°C
Temperature effects: < 3 % for ±20°C change
Response time (t90): < 60 s
Installation: Wall-mounting
Protection class: IP 54
Output signal: Voltage output, 1 - 5 V
RS 232 interface
3 Alarm relays
1 Fault relay
Relay rating: 230 V, 450 VA
other voltages on request
Voltage supply: 230 V, 50 Hz
115 V, 60 Hz (optional)
24 V / DC (optional)
Consumption: 14 VA
Dimensions (WxHxD): 225 x 180 x 105 mm
Weight: approx. 1,5 kg

  • Use of various types of measurement sensor
  • Ready, fault and gas warning indicators
  • Menu-aided operation, via 2 keys
  • Integrated buzzer, gas half-hourly average value selectable
  • Three alarm thresholds individually adjustable from 0-100 % of test range
  • Three floating alarm outputs for driving additional warning and control systems
  • Floating fault contact
  • Serial output RS232 for connecting a printer or a PC
  • High degree of reliability
  • Low current consumption
  • Plastic, wall-mounting housing
  • Easy installation
  • Straightforward operation
  • Heating systems
  • Garages and tunnels
  • Liquid gas storage rooms
  • Laboratories
  • Cold storage houses
  • Plastic processing plants
  • Chemical industries
  • Paint manufacturing plants
  • Concentration measurement of O2
  • and many more
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