Metrohm 746 VA Trace Analyzer - Manual (Page 115)

4 Introduction to the operation
746 VA Trace Analyzer / 747 VA Stand
4-30
• The drinking water sample should be acidified immediately after the
sample has been taken by adding 10 µ L conc. hydrochloric acid per
10 mL drinking water.
Owing to the large temperature dependence of the measured values ( ≥ 2%/°C), we
recommend you to use the 6.1418.220 Thermostatable measuring vessel with the
calibration curve method.
4.3.2 Loading the method CALCRV.mth
To load the method CALCRV.mth from the method memory into the working stor-
age, the following steps are necessary:
1 Switch on instrument
• Switch on the 746 VA Trace Analyzer with mains switch 11 11 at the rear of
the instrument. The instrument is initialized. If all is in order, the dialog
page "MONITORING" appears after a few seconds.
2 Switch to dialog page "METHODS"
• Press the yellow key. The "METHODS" dialog page ap-
pears showing the methods stored in the instrument.
3 Selection of the method CALCRV.mth
• Use the cursor keys to select the method CALCRV.mth , which then
becomes black-backed.
4 Copying the method CALCRV.mth to the working storage
• Press the softkey . The softkey bar changes and presents the
destinations for copying the selected method.
• Press the softkey . The method CALCRV.mth is
copied to the working storage.