Hach TL23 Serie Basis Bedienungsanleitung Seite 16

5. Hold the tab of
the USEPA filter
assembly so that the
arrows point toward
the front of the
instrument. Push the
filter assembly fully
in the housing.
9. Use the oiling
cloth to apply the oil
equally to the
surface of the vial.
Remove most of the
oil. Make sure that
the vial is almost dry.
16 English
6. Push
Calibration. The
standard values for
the selected
calibration curve
(and verification
standard, if Verify
after Cal is on) show
on the display. To
select a different
calibration curve,
refer to Configure
the calibration
settings on page 14.
10. Carefully and
slowly invert the vial
to fully mix the
standard (do not
invert the <0.1 NTU
vial). Be careful not
to add air bubbles.
7. Get the StablCal
standard that shows
on the display. Clean
the vial with a soft,
lint-free cloth to
remove water spots
and fingerprints.
11. Put the vial in
the sample cell
holder with the
triangle on the vial
aligned with the
reference mark on
the sample cell
holder. Push the lid
closed until a click is
heard.
8. Apply a small
drop of silicone oil
from the top to the
bottom of the vial.
12. Push Read.
Wait 1 minute for the
instrument to
complete the
measurement.