YOKOGAWA WN100, Руководство пользователя

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<2. Notes on Handling>
2-3
IM 01W07D01-01EN

Rain and Other Liquid Substances
NOTE
Keep the all-weather protector dry and clean for
correct sound level measurement. Preferably,
install WN100 under a roof or a protection
against rain.
The attached all-weather protector can protect
the microphone from the rain and other liquid
substance, while sound level measurement is
affected by liquid absorption in the windscreen
part of the protector.
In the case that WN100 is exposed to the heavy
rain, it takes more than 2 hours to recover normal
measurement condition after the rain stops.
IMPORTANT
Exposure to oils and organic solvents should be
avoided to prevent damage to the windscreen
material.
Refer to 8.4.5 for more information about
maintenance of the windscreen.

Ambient Temperature
It is preferable not to expose the instrument to
extreme temperatures or temperature fluctuations.
If WN100 is exposed to radiation of heat a thermal
protection system or appropriate ventilation is
recommended.

Ambient Atmosphere
Do not allow the instrument to be installed in a
location that is exposed to corrosive atmospheric
conditions. If there is suspect of existing any
corrosive substances, make sure that the location is
well ventilated so no effect on the equipment.

Impact and Vibration
It is highly recommended that the WN100 be
installed in a location that is subject to a minimum
amount of impact and vibration. The equipment is
so sensitive to the vibration that it may be affected
if installed in a place that is vibrating. In this case
measured sound pressure level might be greater
than the actual sound pressure level.
Use of the antivibration stage is highly
recommended.

Installation of Explosion Protected Products
An explosion protected products is certified for
installation in a hazardous area containing specific
gas types. Refer to subsection 2.6 “Installation of an
Explosion Protected Instrument”.
2.5 Use of a Transceiver
IMPORTANT
Avoid using radio transceivers close to the
WN100.
WN100 is so designed and tested that immune
to electromagnetic interferences to adequate
level, but in case your transceiver creates greater
disturbances than the equipment is tolerant,
the equipment will be affected. If you are to use
transceivers, make sure that there is no risk of
affection to the equipment’s performance. Start
out from a distance of several meters and slowly
approach the WN100 and watch that the “PV.
VALUE” and “DIAG_STATUS” are not affected
while transmitting signal from your transceiver.
If affected, do not use the transceiver within the
range.
2.6 Installation of an Explosion
Protected Instrument
If a customer makes a repair or modification to an
intrinsically safe instrument and the instrument is
not restored to its original condition, its intrinsically
safe construction may be compromised and the
instrument may be hazardous to operate. Please
contact Yokogawa before making any repair or
modification to an instrument.
CAUTION
This instrument has been tested and certified
as being intrinsically safe. Please note that
severe restrictions apply to this instrument’s
construction, installation, external wiring,
Maintenance and repair. A failure to abide by
these restrictions could make the instrument a
hazard to operate.