Installing the Gas Analyzer  41 
 
Installing the Gas Connections 
NOTES 
We strongly recommend that you install the gas connections before the 
gas analyzer is installed, since the gas ports are now easily accessible.  
The fittings must be clean and free of residue! Contaminants can enter 
the analyzer and damage it or lead to false measurement results! 
Do not use sealing compound to seal the gas connections! Constituents 
of the sealing compound can lead to false measurement results! Use 
PTFE sealing tape! 
Follow the manufacturer's installation instructions for the fittings! 
Position and Layout of the Gas Connections 
Uras26  Model EL3020 (see page 42)  Model EL3040 (see page 44) 
Uras26 with Magnos206  Model EL3020 (see page 46)  Model EL3040 (see page 48) 
Ura
s26 with Caldos27  Model EL3020 (see page 50)  Model EL3040 (see page 52) 
Limas23 
Model EL3020 (see page 54)  Model EL3040 (see page 55) 
Limas23 with 
Magnos206  Model EL3020 (see page 56)  Model EL3040 (see page 57) 
Magno
s27  Model EL3020 (see page 60) – 
Magno
s27 with Uras26  Model EL3020 (see page 61) – 
Magno
s206  Model EL3020 (see page 58)  Model EL3040 (see page 59) 
ZO23 
Model EL3020 (see page 62)  Model EL3040 (see page 63) 
Cald
os27  Model EL3020 (see page 64)  Model EL3040 (see page 65) 
Fidas24 
Model EL3020 (see page 66)  Model EL3040 (see page 67) 
Requisite Material 
Screwed fittings with nozzles (supplied) or threaded connections with 1/8 
NPT threads and PTFE sealing tape 
Installing the Gas Connections 
Screw out the yellow plastic screwing caps (5 mm hexagon socket) from 
the connectors. Tightly wind two layers of PTFE sealing tape around the 
thread of the screwed fittings or threaded connections in a clockwise 
direction and screw into the gas ports. Approx. 2 threads usually remain 
visible after the assembly. 
NOTE 
Screw in the fittings carefully and not too tightly!  
Checking the Seal Integrity of the Sample Gas Feed Path 
The tightness of the sample gas feed path was checked in the factory. 
However since it may have been affected during transport of the gas 
analyzer (e.g. by strong vibrations), we recommend that it is checked 
(see page 119) before the instrument is commissioned at the installation 
s
ite. 
NOTE 
We strongly recommend that the tightness of the sample gas feed path is 
checked before the gas analyzer is mounted, since the housing must be 
opened in the event of a leak.