The multi-channel gas warning equipment ADOS
MWS 903 continuously monitors the surrounding air and provides an early warning of dangerous, explosive and non-combustible gases and vapours.
It is possible to connect up to 8 gas transmitters to the unit.
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
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 |