Hydro-Logic
®
Flexi Logger 300Ex
User Manual
22 August 2018
Page 28 of 74
Outdoor siting
The Hydro-Logic
®
Flexi Logger 300Ex is designed for mounting in underground
chambers, close to the surface and just below the lid.
If the Hydro-Logic
®
Flexi Logger 300Ex is sited outdoors, it
must be mounted in
an enclosure
to protect it from vandalism, theft and prolonged direct exposure to
the environment. The external enclosure does not need to be sealed but should
be sturdy and lockable or close and mount with security fasteners.
Antennas
The Hydro-Logic
®
Flexi Logger 300 has an
internal antenna,
which under
normal conditions is the best choice.
There is also a connector for an external antenna which can be used in more
challenging signal conditions. The external antenna must be mounted outside of
all enclosures, in a protected position above ground.
Examples of conditions that may require an external antenna:
•
Installing the logger in a metal enclosure, kiosk or cabinet.
•
Installation in remote sites with weak network coverage.
External antennas for metal enclosures
If the logger is inside a metal enclosure, a low-
profile “teacake” antenna (part no
PDA9100.3315
) is recommended, which mounts in a
25mm diameter
hole in the
top of the enclosure. It is secure and tamper resistant if mounted correctly.
Содержание Hydro-Logic Flexi Logger 300Ex
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Страница 70: ...Hydro Logic Flexi Logger 300Ex User Manual 22 August 2018 Page 70 of 74 Appendix 2 ATEX Certificate ...
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