TSI Instruments ALNOR MicroManometer AXD 550, Руководство пользователя, Страница: 13 / 26

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Symptom
Possible Cause and Corrective Action
Measurement is erratic The input is not steady. Change your time constant setting to a
higher value.
Check to see that your Pitot probe is held steady.
Erroneous readings Make sure that your Pitot probe is perpendicular to the air flow
you are measuring.
Change the value of your time constant. It may be inappropriate
for your current application.
Clean your Pitot probe-----it may be dirty.
Take measurements at a different location.
Verify your correction factor setting.
Meter does not download to computer Make sure the serial port on the meter is enabled. Review the
stored date. There must be data stored for printing.
If any of these problems persist, call TSI for assistance.
Maintenance
Periodic maintenance should be performed on the
meter.
Batteries should be replaced when the low
battery indication is on or when the unit turns
itself off after power-up.
Batteries should be removed from the meter if
it will not be used for two (2) months or
longer.
Calibration checks are recommended every 12
months.
Keep the meter clean by using a mild
detergent on its case. Do
not use abrasives or
solvents. Also, Do not allow liquids to enter
the meter’s case. Dry thoroughly after
cleaning.
Use an eyeglass cleaner and lens paper to
clean the LCD window.