Thermo Scientific Prima PRO - Hazardous Area Systems; Power Connection; Safe Area Systems

Installation & Interconnection
Cable Connections
5-2 Prima PRO & Sentinel PRO Mass Spectrometers User Guide Thermo Fisher Scientific
Warning! No user electrical connections (power or signal) are
made within the instrument enclosure. Any such connection may
cause a hazard and will invalidate the hazardous area
certification of the instrument. All electrical connections are to be
made to the flameproof box above the main enclosure (or to
additional flameproof boxes in the case of extended I/O). See
Appendix A: Hazardous Area Operation for further details.
Warning!
 If fibre optic communications links have been ordered, the
fibre connection point is within the enclosure and is the only
situation where cable entry to the purged enclosure is
permitted.
 To maintain the factory tested enclosure integrity, the cable
gland(s) used must be Exe or of metal construction and a
minimum IP rating of IP65.
 If conduit or loose core cable is used, a seal must be created
at the gland to prevent loss of purge gas down the conduit /
cable.
 The fibre optic cable should pass through the enclosure wall
and connect directly to the fibre optic converter within the
enclosure.
 Do not use bulkhead connections in the gland plate.
 The installer should maintain a record of the size of the hole
and gland type used so that correct replacements can be
provided should this become necessary at any point.
 Further details of the fibre optic cable requirements are given
in Chapter 3: Site Requirements.
Consult Chapter 3: Site Requirements for details of the power supply
requirements. The power supply cable must be compatible with the
supply current and the relevant local electrical regulations.
The mains power cable should be brought into the enclosure via the
bottom gland plate. Live (hot) and neutral conductors are to be
connected to the isolation switch MAINS IN terminals L1 and L2/N
respectively (see Figure 5–1). The earth conductor MUST be
attached to the Primary Earth stud adjacent to the isolation switch,
identified by the symbol: .
Hazardous Area
Systems
Power
Connection
Safe Area Systems