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Introduction
Site Considerations
Electronics Enclosure
Location
Installation
To ensure safe and reliable operation of the AT868, the system must
be installed and programmed in accordance with the guidelines
established by GE. Those guidelines are explained in detail in this
chapter.
Be sure to follow all applicable local safety codes and
regulations for installing electrical equipment. Consult
company safety personnel or local safety authorities to
verify the safety of any procedure or practice.
!ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables must be installed
as described later in this chapter.
Because the relative location of the flowcell and the electronics
enclosure is important, use the guidelines in this section to plan the
AT868 installation.
The standard AT868 electronics enclosure is a powder-coated
aluminum NEMA 4X, IP66 weatherproof enclosure (see Figure 1-4
on page 1-15). Typically, the enclosure is mounted as close as
possible to the transducers. When choosing a site, make sure the
location permits easy access to the electronics enclosure for
programming, maintenance and service.
Note: For compliance with the European Union's Low Voltage
Directive (73/23/EEC), this unit requires an external power
disconnect device such as a switch or circuit breaker. The
disconnect device must be marked as such, clearly visible,
directly accessible, and located within 1.8 m (6 ft) of the unit.
!WARNING!
September 2004
1-1
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