Endress+Hauser SS1000, Hardware Installation And Maintenance Manual

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Installation
Hardware Installation and Maintenance Manual 3
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5
The electrical power for the 2-Pack is connected to the analyzer through the
conduit hub(s) located at the bottom right and left of the electronics
enclosures. Refer to Appendix A for system drawings.
Units with an enclosure heater will have an additional power connection
through a conduit hub located at the bottom right of the sample conditioning
system (SCS) enclosure (refer to “Connecting Electrical Power to the SCS
Enclosure Heater” on page 3-9).
Protective chassis and ground connections
Before connecting any electrical signal or power, the protective and chassis
grounds must be connected. Requirements for the protective and chassis
grounds are as follows:
•
The protective and chassis grounds must be of equal or greater size
than any other current carrying conductors, including the heater
located in the sample conditioning system
•
The protective and chassis grounds must remain connected until all
other wiring is removed
•
If the protective and chassis ground is insulated, it must use the
green/yellow color
Refer to Figure 1–5 on page 1–10 for the chassis ground location and Figure
1–6 on page 1–11 and Figure 1–7 on page 1–12 for the protective ground
location.
Interconnection of the analyzer enclosure and cell enclosure shall
be accomplished using wiring methods approved for Class 1,
Division 2 hazardous locations as per the Canadian Electrical Code
(CEC) Appendix J and the National Electric Code (NEC) Article
501, or methods described in the Standard IEC/EN 60079-0 and
IEC/EN 60079-14. The installer is responsible for complying with
all local installation codes.
Careful consideration should be taken when grounding. Properly
ground the unit by connecting ground leads to the grounding
studs provided throughout the system that are labeled with the
ground symbol .
The 120/240 VAC power option is designed for single-phase
electric power only. The single pole input fuse protection is not
designed for split-phase electric power input.
Careful consideration should be taken when grounding. Properly
ground the unit by connecting ground leads to the grounding
studs provided throughout the system that are labeled with the
ground symbol . Failure to properly ground the system
may create a high-voltage shock hazard.