73022344 o 
 
Position of the type indication: 
The main type label with the most impor- 
tant details is located above the sample  
gas inlets on the right-hand rear base area. 
This information must be noted and ob- 
eyed in all circumstances.  
If the main type label cannot provide suffi-
cient space for all the details, the additi- 
onal details can be read off an additional 
 type label which is also affixed to the  
housing base.  
The figure shows the positions  
of the type labels.  
 
 
Figure 11.1: Positions of the type labels