Acid Demand, With Tablet - EVOQUA WALLACE & TIERNAN P7 ADVANCED Mode D'emploi

P7 Advanced
Acid demand to pH 4.3 with Tablet
S:4.3
0.1 – 4 mmol/l
Fill a clean vial (24 mm Ø) with 10 ml of the water sample and
0.0.0
perform zero calibration (see "Operation").
Add one ALKA-M-PHOTOMETER tablet straight from the foil to
the 10 ml water sample and crush the tablet using a clean stirring rod.
Close the vial tightly with the cap and swirl gently several times until
the tablet is dissolved.
Place the vial in the sample chamber making sure that the
are aligned.
Zero
Press the [ZERO/TEST] key.
Test
The method symbol flashes for approx. 3 seconds.
S:4.3
The result is shown in the display as Acid demand to pH 4.3
RESULT
in mmol/l.
Tolerance: ± 0.2 mmol/l
Notes:
1. The terms total Alkalinity, Alkalinity-m, m-Value and Alkalinity to pH 4.3 are identical.
2. For accurate results exactly 10 ml of water sample must be taken for the test.
3. Conversion table:
Acid demand
to pH 4.3 Calciumcarbonate
in mmol/l
x Factor = Result
* Carbonate hardness (reference = Hydrogencarbonate-anions)
Example: 2.5 mmol/l · 2.8 = 7.0° german Hardness (°dH)
48
CaCO °dH*
3
german Hardness
Factor Factor
50 2.8
°fH* °eH*
french Hardness english Hardness
Factor Factor
5.0 3.5
WT.050.311.000.DM.IM.0119
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