Page 10 of 27
WITT-GASETECHNIK GmbH & Co KG
Salinger Feld 4-8
: +49 (0)2302 89010
www.wittgas.com
Gas Safety- & Control Equipment
D-58454 Witten
Fax: +49 (0)2302 89013
4
Description
4.1
Types
The MG series comprises as standard the types MG 50, MG 100, MG 200 and MG 500. The differ-
ences between the types lie in the mixed gas outputs.
The gas mixer is specified in more detail by further additions. Please see the information in the en-
closed technical data for the specification of your gas mixer (see Section 9).
MG
50
100
200
500
-2
-3
-4
ME
GB
PvDu
PmDü
A
Ex
Ex
Ex-Version (ATEX)
A
Analysis
GB
Inlet pressure monitoring,
solenoid valve closes on alarm
PvDu Inlet pressure monitoring
PmDü Pilot pressure monitoring
ME
elec. pressure switch / solenoid valve
combination
Number of gases
Mixed gas output
Big gas mixer (Gross-Mischer)