Xylem SI Analytics TO 7280 Operating Manual page 39

Once the worklist is set up and started, the following action prompt appears (Fig. 71).
Fig. 71
You have the following options:
 «Change 0 –via»:
 «0 – vial in oven»:
 «Insert sample
(use last 0 – vial value)»:
1) Add the 0 – Vial
The following window (Fig. 72) is only displayed if the «Change 0 –via» option is selected and a new background
drift is to be recorded. After confirmation, the gas supply is switched off and the needle head moves up.
Fig. 72
The vial in the oven is removed, the new 0 – Vial is inserted and confirmed with <OK>. The needle head is
moved down and the gas supply is switched on again. The status of the sample changes from «Active» to
«Conditioning».
2) Conditioning phase
If the «0 – vial in oven» option is selected, the vial in the oven is used for the conditioning phase that now
follows.
Fig. 73
As soon as the start parameters are observed, the gas supply is switched off and the needle head is moved
upwards.
A vial is in the furnace and is to be exchanged for a new 0 - vial.
Go to point 1 of the following process description.
There is a 0 - vial in the furnace, which is used for the next conditioning.
Go to point 2 of the following process description.
No new determination of the basic drift is made.
The last measured base drift is taken over for the next measurement.
Go to point 3 of the following process description.
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