Pulsar Nova® sound level meter user manual
Page 21
Calibration
As strongly recommended in all modes of use, any noise measuring instrument should
be calibrated before use and the Nova® sound level meter knows if you have calibrated
it before it takes the first measurement after turning it on. If you haven’t performed a
calibration when you press Start to commence your measurement it will go to the
Calibration screen. All noise measuring instruments should be calibrated before use
(measurement session), because the microphone is susceptible to minor damage from
even small knocks.
If you do not wish to calibrate your Nova® simply press Cancel and you will still be able
to take your measurement.
The calibration applies corrections (if needed) to ensure that your measurements are as
accurate as possible.
Calibration should also be carried out at the end of a measurement session to make sure
that nothing has happened to the instrument during the session.
To calibrate your Nova®, carefully push the microphone into the cavity at the end of the
calibrator. Ensure the microphone is fully inserted into the cavity and is past the ‘O’ ring
seals.
Ensure that the small pressure equalisatiuon hole next to the microphone cavity on the
calibrator is not blocked, as this could cause damage to the microphone.
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