CHEMOTRONIC III
49
Cloudpoint measurements are incorrect:
Possible causes:
·
Wrong type of solvent: to increase the
cloudpoint select a less aromatic
solvent.
·
Glass fibre tips are dirty: clean the tips
with a brush and check the intensity of
the infrared light beam.
·
Cloudpoint is outside the calibrated
range: readjust min. and max.
turbidity settings.
·
The set delta Temp is to small.
Generally near the dwell temperature
the bubble generation is very strong. If
the cloud point measurement is
activated at this point just an apparent
cloud point can be detected caused by
the bubbles. The real cloud point may
be much more lower. Set delta Temp
to higher values f. i. 20 K.
Turbidity calibration fails:
·
Check the reference liquids and grant a
wide turbidity range.
·
The pollution of sensor system is too
strong, clean up the system.
Hint:
Observe the variation of the absolute light
absorption equivalent at the temperature
display during the calibration procedure.
The time and date are lost
after switching off:
The capacity of lithium cell is exhausted.
Replace it, as described in chapter 10.1.
Printing troubles:
Replace ink ribbon cassette and/or paper
roll. Make sure the paper roll can spin by
removing some of the paper before
inserting the roll. To avoid tension on the
paper, always use the form feed button.
Содержание HEMOTRONIC III
Страница 54: ...CHEMOTRONIC III 54 Appendix...
