wtw Turb 350 IR, Руководство по эксплуатации, Страница: 33 / 42

What to do if...
75
6 What to do if...
Display "
----
"
Display "
-Or- -Or- -Or- -Or-
"
Measured values
that are obviously
too high
Cause Remedy
- The measuring
instrument automatically
switches over the
measuring range.
- Wait for the end of the
measuring range
switchover
- There are air bubbles in
the sample.
- Vent sample (see section
4.1.2)
- There is a foreign body in
the cuvette shaft
- Remove the foreign body
Cause Remedy
- Measuring range
exceeded
- This cannot be remedied.
Sample is not suitable for
the measurement
Cause Remedy
- Cuvette contaminated - Clean the cuvette
- Cuvette scratched - Replace the cuvette
- Cuvette misted up - Adjust the temperature of
the sample before
measuring
- Air bubbles in the cuvette - Remove air bubbles
- Measuring instrument
not correctly calibrated
- Calibrate the measuring
instrument