Technical Section
Maintenance and Repair Parts
The EverWatch monitor is almost maintenance free. An occasional sensor cleaning and periodic
calibration checks are all that are needed to ensure that the EverWatch monitor is operating at
optimum performance.
Calibration
EverWatch monitor should be calibrated annually. Refer to “Calibration” section instructions. The
velocity sensor should be cleaned prior to calibration.
Velocity Sensor Cleaning
Significant build-up of dust or dirt on the velocity sensor can degrade its performance. It is
recommended that the velocity sensor be periodically inspected for accumulation of
contaminants. The frequency of these inspections is dependent upon the quality of the room air
drawn across the sensor. Quite simply, if the air in the room is dirty, the sensor will require more
frequent examinations and cleaning.
Caution:
Turn power to EVERWATCH monitor off prior to cleaning the velocity sensor. Do not use
compressed air to clean the velocity sensor.
Accumulations of dust or dirt can be removed with a soft-bristled brush (such as an artist's
brush). Alcohol, acetone, or trichlorethane may be used as a solvent to remove other
contaminants if required.
WARNING:
Do not attempt to scrape contaminants from the velocity sensor. The velocity sensors are quite
durable, however scraping will cause mechanical damage and possibly break the sensor.
Mechanical damage due to scraping voids the velocity sensor warranty.
Replacement Parts
All components of the EverWatch monitor are field replaceable. Contact TSI at (651) 490-2811 or
your nearest authorized TSI manufacturer's representative for replacement part pricing and
delivery.
Velocity Monitor, English
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