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ADOS GmbH
Instrumentation and Control
Trierer Strasse 23-25
52078 Aachen, FRG
Phone: +49 (0)241 / 9769 - 0
Fax: +49 (0)241 / 9769 - 16
E-mail: info@ados.de
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MWS 906 CP
| Multi-Channel Gas Warning System
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
Monitoring of:
Heating systems
Garages and tunnels
Liquid gas storage plants
Laboratories
Cold-storage depots
Plastic processing workshops
Chemical industries
Paint varnish manufacturers
Concentration measurement of O
2
and many more
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
Two monitoring areas (levels)
Five alarm thresholds for each sensor, independently
adjustable from 5-100% of the measurement range,
also possible to from half-hourly average values
8 floating outputs for driving additional warning and
control devices
Floating change-over contact for sirens and warning
banners for each level
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
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.
Product data sheet
MWS 906 CP
Examples of measurable gases
Gas
Formula
Carbon monoxide
CO
Nitrogen dioxide
NO
2
Petrol
Methane (natural gas)
CH
4
LPG
C
3
H
8
C
4
H
10
Hydrogen
H
2
Technical Data
Sensor inputs:
16 two- or three-line sensors
(e.g. ADOS GTR 196)
with current interface
4 – 20mA
Sensor supply:
24 V= / 1A
Measurement ranges:
CO 0–300 ppm
NO
2
0–30 ppm
Petrol 0–100 % LEL
CH
4
0–100 % LEL
LPG 0–100 % LEL
H
2
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:
230 V / 50 Hz
115 V / 60 Hz (optional)
24 V= (optional)
Power consumption:
max. 30 VA
Ambient temperature:
-10 °C to +45 °C
Dimensions (WxHxD):
360 x 265 x 160 mm
Weight:
approx. 4 kg
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
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