Siemens ULTRAMAT 23, Manual, Page: 71 / 244

Connecting
5.2 Gas connections and internal gas path
ULTRAMAT 23
Manual, 3/2016, A5E37100388-003
71
5.1.11 Variant with specially cleaned gas path (Cleaned for O2)
In the version with the order suffix -B06 (Cleaned for O
2
), all parts wetted by the sample gas
are cleaned and absolutely grease-free.
CAUTION
Ignition hazard
Because of the danger of ignition, all parts coming into contact with oxygen must be clean.
This means they must be free of loose parts or parts which could become loose during
operation and of foreign particles, especially oil, grease and solvents.
Observe the following when working on analyzers with specially cleaned gas path:
• No clothing which is contaminated by oil or grease may be worn.
•
The installation site must be clean and dust-free.
•
Only parts which are packed and marked accordingly may be assembled.
•
Always wash your hands before commencing work.
•
The cleaned parts must only be handled on the surfaces which do not come into contact
with the sample gas.
•
New filters, new connecting hoses, and oil-free mixing equipment must always be used
to check the analyzer function.
5.2 Gas connections and internal gas path
5.2.1 Gas connections
Sample gas line
A pipe with a outer diameter of 6 mm or 1/4" is present as the gas connection. The materials
used in the gas path must be suitable for the respective measurement.
If you wish to exit the sample gas into a collective exhaust line, observe the following points:
● The exhaust line must be free of rapid changes in pressure. If this is not possible, either a
separate exhaust line must be installed, or a damping vessel with a capacity > >1 l must
be installed between the analyzer and the exhaust line.
● The exhaust gas line must always be routed with a falling gradient away from the device
since moisture can condense in it.