After the reaction period is finished proceed as
follows:
9. Rinse the vial (24 mm Ø) with the coloured sample from
the beaker and fill with 10 ml of the sample.
10. Press TEST key.
The batch related method blank is saved.
Press [
] key,
to go back to mode menu.
Notes:
1. If a new batch of CALCIO tablets is used a calibration of the method blank has to be
performed to optimise the results.
2. Deionised or tap water
3. If no water free of Calcium is available these ions can be masked by using EDTA.
Preparation: Add 50 mg (a spatula-tipful) EDTA to 100 ml water and dissolve.
4. To achieve the most accurate method blank it is important to adhere exactly to the
sample volume of 100 ml.
Calcium Hardness Method 191 –
Reset method blank to factory calibration
Press [MODE], [Shift] + [4] [0] keys.
Confirm with [
] key.
The display shows:
Press [Shift] + [2] keys.
The display shows:
<Calibration>
M191 Calcium Hardness 2T
Reset ?
YES: 1, NO: 0
<Calibration>
1: M191 Ca-Hardness 2
2: M191 0 Jus. Reset
3: M170 Fluoride L
prepare TEST
press TEST
stored
Mode
04
2
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