Technical Description
2
Installation Guidelines
2.1
Safety Information
Warning
Certain parts in the ETL carry dangerous voltages. The housing must be earthed and closed
before switching on the instrument.
2.2
General
The ETL3000 /ETLONE monitor should be installed in a place suitable for the type of
application and always
outdoor
so that the sensors contained in the ETL3000 /ETLONE are in
contact with the open air to be monitored.
The ETL3000 /ETLONE is supplied with mounting kit to be installed in a fixed execution (to be
mounted on a pole or on a wall).
The ETLBUS version can be supplied for a fixed installation or to be mounted on board a
vehicle (as a bus) for a “dynamic monitoring.
See chapter 2.5 for instruction on both type of installation.
Note
The
SENS-IT
(TF-MOS – Thick Film Metal Oxide Semiconductor) sensors
included in the ETL
can be “drugged” and damaged by certain substances. In order to avoid any contamination of
the sensors, extremely care must be taken in
NOT using any silicone or silicone compounds
nearby the sensors and inside and outside the ETL
.
Also other compounds could alter the measurements of the TF-MOS SENS-IT sensors as:
- nitric compounds: varnish, solvents, PAN (aromatics ), paints, glues.
Alterations could affect the sensors also in indoor environments.
Furthermore extraordinary events could determine the momentary affection of
measurements due to the influences of the above substances.
DO NOT USE any of the above derived material on any parts of the ETL, or on its accessories
(mounting kit, screws, nuts, etc..)
If necessary ONLY use inert material as PTFE.
DO NEVER expose the sensors in direct contact or nearby substances as silicones, glues,
varnishes or their vapours.
ORION S.r.l.
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