Installation & Interconnection
Gas Connections
5-4 Prima PRO & Sentinel PRO Mass Spectrometers User Guide Thermo Fisher Scientific
A separate 3-phase supply is normally required for this option.
Refer to the manual supplied for the specific pump.
Cables used should be compatible with local electrical regulations.
Cabling should be kept as short as possible from cable entry to
connection point.
Cables should be tied down or neatly bundled together and MUST be
kept separate from existing electrical and electronic items (including
cables) in the enclosure.
Cable screens should be terminated at the point of entry.
All external serial connections are made to the local I/O board in the
instrument enclosure. See Figure 5–3. Further details are in
Appendix D: Local I/O.
Safe area systems may be fitted with optional discrete analogue I/O.
Connection are made directly to the individual I/O modules.
Warning!
Signal cables are connected directly to terminals on the
isolation PCB in the flameproof enclosure (see Figure 5–2).
The entry ports in this enclosure are 5× M20 (adapters to 1/2”
NPT are also supplied).
The cable / conduit entry gland used must be Exd certified in
order to maintain the flameproof integrity of the enclosure.
Sample gas, calibration gas, and exhaust gas connections should be
made as specified in Chapter 3: Site Requirements.
Pipe runs should not restrict service access to the instrument.
All gas lines should be leak checked after installation.
Where heat tracing of lines is required, this should be fully tested.
Certain options may require additional services (e.g. compressed air,
nitrogen). These are specified in Chapter 3: Site Requirements.
As stated above, care should be taken with tubing / pipe runs to avoid
restricting service access.
Sentinel PRO Sample
Pump Power
Connection
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