Ados

MWS 906 CP

Multi-Channel Gas Warning System
MWS 906 CP

Application

The multi-channel gas warning equipment MWS 906 CP continuously monitors the ambient air and issues an early warning of gases and vapours that are dangerous to health, or when there is a danger of explosion, for noncombustible gases and vapours. In conjunction with the ADOS TOX 592 CO gas measurement sensor, the MWS 906 CP satisfies all requirements of the VDI-guideline 2053.

Fields of Application

  • Heating systems
  • Garages and tunnels
  • Liquid gas storage plants
  • Laboratories
  • Cold-storage depots
  • Plastic processing workshops
  • Chemical industries
  • Paint varnish manufacturers
  • Concentration measurement of O2
  • and many more

Examples of measurable gases

Gas Formula
Carbon monoxide CO
Nitrogen dioxide NO2
Petrol  
Methane (natural gas) CH4
LPG C3H8   C4H10
Hydrogen H2

Features

  • 6-section keyboard and backlit 4-line LC-display for displaying actual values, half-hourly average values and fault messages in cleartext
  • Ready for operation, fault and gas warning indicators
  • Menu-assisted adjustment of equipment parameters via 6-section keyboard
  • Three alarm thresholds for each sensor, independently adjustable from 5-100% of the measurement range, also possible to from half-hourly average values
  • A maximum of 48 floating outputs for driving additional warning and control devices
  • Floating change-over contact for faults, sirens and warning banners
  • Serial output RS 232, for connecting a printer or PC
  • 4-20 mA current interface as output signal
  • Plastic, wall-mounting housing (IP 54)
  • High degree of service reliability
  • Low power consumption
  • Easy installation
  • Un-interruptible power supply (UPS) can be used

Technical data

Sensor inputs: 16 two- or three-line sensors
(e.g. ADOS GTR 196)
with current interface
4 – 20mA
Sensor supply: 24 V= / 100 mA
Measurement ranges: CO    0–300 ppm
NO2  0–30 ppm
Petrol 0–100 % LEL
CH4   0–100 % LEL
LPG   0–100 % LEL
H2      0–100 % LEL
other ranges by request
Digital inputs: 1 input for cancelling the horn
(siren)
Digital outputs: upto 2 alarm levels, each with
6 relays, of which, for each level:
3 average values
1 instantaneous value
1 horn
1 warning banner
1 fault relay
1 service relay
All outputs have floating
change-over contacts
rated at max. 250 V / 4 A
Standard output signals: Analog output 4 – 20 mA
Serial interface RS 232
Voltage supply: 115 V / 60 Hz
230 V / 50 Hz (optional)
24 V / DC (optional)
Power consumption: max. 30 VA
Ambient temperature: +14 °F to +113 °F
Dimensions (WxHxD): 14.2 x 10.4 x 6.3 inch
Weight: approx. 8.8 lbs
Protection type: IP 54 to DIN 40050
Accumulator operating time: >10 h for a real ”mains fault“
display
with UPS 2000-24V/4 Ah: >1 h optional, retaining all
equipment functions
Test certificate: German Technical Inspectorate
approval, according to VDI 2053 in conjunction with ADOS
TOX 592 CO

Accessories

Signal horn, warning lights, warning banner, plotter, stand-by power supply unit UPS 2000 24 V.
Further accessories will be available, according to the proposed measurement tasks.