Essential Health & Safety Requirements | 23
• Do not substitute parts as this may impair the analyzer’s suitability for
Class I, Division 2 use.
• If a specific procedure requires the unit to be energized, a hot work
permit may be required; check with your safety consultant.
• Power, input and output wiring (I/O) must be in accordance with
Class I, Division 2 wiring methods [Article 501-4 (b) of the National
Electrical Code, NFPA 70] and in accordance with the authority having
jurisdiction.
Installation Requirements
These components are meant to be permanently connected devices. Qualified installa-
tion personnel must adhere to the nationally recognized standards for power cable type
and building breaker or fusing for use with this type of equipment. These must be in
compliance with the power requirements stated in the CD package and for use in the
intended environment (general purpose or hazardous).
This equipment is designed to operate from local branch circuits (Installation Category
II).
In addition to these requirements, the power connections must have the following char-
acteristics:
• It must include a separate disconnect device, such as a switch or cir-
cuit breaker, included as part of the building installation. The electrical
specifications of this device must accommodate the power and envi-
ronmental requirements of the equipment for the particular applica-
tion.
• This device must be in proximity to the equipment and within easy
reach of an operator.
• This device must be permanently marked as the disconnect device for
the equipment.
Hazardous installation requirements
Zone 1
For Zone 1 sample system installations, no cable glands or strain reliefs are supplied with
the system. Only removable gland plates and junction boxes with threaded entries are
provided. It is the customer’s responsibility to provide for the complete installation of
NOTE
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