Maintenance
85
Replace the anhydrone as follows:
1. Turn the analyzer to Position 0 on the main switch or
switch to the induction furnace mode in the ELEMENTS
software.
The analyzer must not generate any vacuum in the
HTFr.
2. Open the machine door (
1
) on the front of the HTFr.
3. Loosen the two screws on the clamping device (
2
) so
that the reagent tube (
4
) can be moved easily.
Turn the reagent tube (
4
) when the O-ring is firmly in
place.
4. Slide the reagent tube (
4
) carefully upwards and tilt the
bottom end of the reagent tube forwards.
5. Pull the reagent tube (
4
) out from below.
6. Remove the used filling from the reagent tube.
7. Dispose of the reagent tube filling in accordance with
local regulations and provisions.
8. Fill the bottom section of the tube to a length of approx.
5 cm with glass wool (Part No. 90032).
9. Apply as much magnesium perchlorate (Part No. 90200)
to the glass wool as is needed for the distance between
the magnesium perchlorate filling and the top O-ring (
3
)
to be approx. 2 cm.
Do not apply any glass or quartz wool to the
upper end of the reagent tube, because this
can distort the sulphur readings due to
condensation.
10. Grease the bottom O-ring (
5
) with high vacuum silicon
grease (Part No. 92610).
The top O-ring (
3
) must remain free from
grease because it may otherwise become stuck
to the holding mechanism or the glass.
11. Hold the filled reagent tube at a slight angle and guide it
over the top O-ring (
3
) onto the support.
12. Align the reagent tube vertically above the bottom O-
ring (
5
) and slide it down until the reagent tube is resting
on the bottom of the support.
13. Tighten the screws on the clamping device (
2
) again.
14. Close the machine door.
15. Turn the analyzer to the desired setting.
16. Wait until the HTFr is operational.
The anhydrone has been replaced.
2cm
90200
5cm
90032
O-ring
(3)
