Exhaust Gas Lines; Equipotential Bonding Cable/Grounding; Lightning Protection - Siemens MicroSAM Operating Instructions Manual

Mounting
4.4 Mounting and connecting
4.4.4

Exhaust gas lines

All exhaust gases from the chromatograph must be routed into a common line. The
individual exhaust gas lines must have a downward gradient to the common line. They must
not have a diminishing diameter.
Material of the common exhaust gas line
Stainless steel piping:
● Inner diameter of at least 12 mm (1/2")
● With welded stubs and screwed glands
● With a gradient of at least 10%.
4.4.5

Equipotential bonding cable/grounding

An equipotential bonding cable is required for explosion-proof chromatographs irrespective
of the local installation guidelines. Independent thereof, the chromatograph housing must be
grounded for electromagnetic compatibility reasons.
Procedure
1. Connect the grounding screw (symbol ) at the bottom right on the chromatograph to a
2. It is essential to provide a contact washer between the cable lug and housing. The
4.4.6

Lightning protection

We recommend the installation of appropriate lightning protection equipment for the
protection of personnel and devices!
60
central grounding point. The permissible cable cross-section is 2.5 mm
connection must be made in the following sequence:
– Housing
– Contact washer
– Cable lug
– Washer
– M6 screw
Operating Instructions, 06/2012, C79000-G5376-C560-07
to 6 mm .
2 2
MicroSAM