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...4 MECHANICAL INSTALLATION
4.2 Sample Gas Interconnections
Warning. A hazardous mixture of hydrogen in air could develop in the event of leakage from the sample gas system.
Katharometer analyser panels should be located in a ventilated area.
The sample pressure must not exceed the value given in Section 13.
The incoming sample gas temperature must not exceed the temperature given in Section 13. Ideally the sample gas temperature
should be allowed to reach ambient temperature before entry to the Katharometer unit.
If there is a risk of significant particle contamination, a suitable 1µm filter unit should be incorporated in the system before the sample
gas enters the analyser system.
Compression couplings are supplied at the sample inlet and outlet to the katharometer panel. These couplings are suitable for
connecting 8 mm (Model 006540 203) or 6 mm (Model 006548 000) outside diameter metal tube. It is recommended that stainless
steel tube is used.
The complete tubing system should be tested for leaks in accordance with the requirements of the responsible authority.
Power Supply
Unit 1
Terminal Block
12
Earth Point (Ground)
Cable Glands for cable
terminations in
Hazardous areas
Fig. 4.5 Location of Main Components on Cubicle Backplate
Cable Glands for
cable terminations in
Safe areas
Power Supply
Unit 2
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