A-96.250.231 / 130421
AMI Turbitrack
Maintenance
40
6
Screw the screw cover with the new humidity absorber flask into
the measuring cell.
7
Tighten it well.
Note:
After replacing the humidity absorber, the dew point
decreases only slowly. It may take several days until the dew
point is below 3 °C again.
Check O-ring
When replacing the humidity absorber, also check the bayonet lock
cover for leaks.
1
Remove the bayonet lock cover and check the O-ring for
damage.
2
Replace the O-ring if it is damaged.
6.5. Verification
The following two test units are available:
Verification kit Turbi Zero (~ 50 mFNU)
Verification kit Turbi Low (~ 5 FNU)
The test unit consists of a cover with a bayonet lock and a cylinder
with 3 plain areas on it. The plain areas are arranged at an angle of
90°.
The test unit is calibrated for a sample temperature of 25 °C. If your
sample has a temperature other than 25 °C, you have to measure
the sample temperature externally and convert the nominal value
to the corresponding temperature. The variation is +0.3 to + 0.4%
per °C. That means, the lower the temperature, the smaller the
scattering.
If the deviation of the measured value is larger than ±10% compared
to the nominal value of the test unit, try again. If the deviation is
again too large, clean the measuring chamber, see
.
