Thermo Scientific Sarasota SG901, User Manual

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Installation
Electrical Considerations
2-2
Sarasota SG901 User Guide Thermo Fisher Scientific
Ideally, the exhaust should be vented at near atmospheric pressure. The
normal method is to exhaust the system to the flare header. If this is not
possible then the system should be exhausted at a pressure of at least 0.4 bar
(6 psi) below the control pressure in the analyzer system.
It may be required to feed the safety vent outlet, where fitted, to a disposal
system or returned to the gas line for environmental reasons.
Note
It is the user’s responsibility to ensure that local requirements are
met.

The cable specification for the Sarasota SG901 analyzer is:
BS5308 part 1 : 1986 : type 2
Polyethylene insulated, bedded, single wire armored, PVC sheathed,
five twisted pairs with individual screens, core size 0.5 mm².
This cable is suitable for underground installation.
Maximum distance for transmission of signal is 1 km.
Other cable types may be used, but they must meet requirements for IS
installation.
When the sample gas is non-flammable and the area is non-hazardous,
standard electrical precautions regarding signal cables should be taken in
order to minimize problems associated with electrical noise.
In hazardous areas, appropriate care must be taken to meet local system
requirements and the certification requirements for the Sarasota SG901
analyzer.
Safety
Electrical
Considerations
Cable Specification
Safe Areas
Hazardous Areas