Madsen zodiac Reference Manual page 117

Note If the test environment changes, for instance if there is an increase in humidity or if you are going to test
•
at a different altitude, make a probe check to verify that the system measures correctly.
You can calibrate Zodiac from the device or from OTOsuite.
Standard equipment
• Multi-frequency cavity kit (0.5 cc, 2.0 cc, 5.0 cc, HF)
Performing Probe Admittance Calibration
from Zodiac
1. Use a new probe tip, or make sure that the
probe tip has been cleaned and disinfected,
before you place it in the test cavity. This is to
make sure that the probe tip does not influ-
ence the probe test, and that the test cavity is
not contaminated.
2. To access Probe Admittance Calibration from
MADSEN Zodiac, switch on the device and
Special
select
tance
.
3. Select the probe type you wish to cal-
ibrate:Quick Check or Diagnostic.
4. When the probe light indicator shows that the
probe is active, place the probe in the 0.5 cc
test cavity of the multi-frequency cavity kit.
The calibration starts automatically.
5. A progress bar shows when the first calibration
is done, and the probe light indicator turns
green.
6. Remove the probe from the cavity and wait
until the probe light indicator shows that the
probe is active.
7. Repeat the procedure with the 2.0 cc and the
5.0 cc cavities.
If you are calibrating a Quick Check probe, do
not calibrate the probe in the HF cavity.
When the probe has been measured in all four cav-
ities, the admittance has been calibrated for the
applicable frequencies.
Otometrics - MADSEN Zodiac
Calibration Probe Admit-
> >
17 Service and maintenance
117