Water I.D. Primelab 2.0, Руководство пользователя

Страница: 132 / 301

(09)
Hardness-Calcium HR
50 - 1000 mg/l (CaCO₃)
Tablet
Internal Name: 09-Hard-Cal-HR_tab
10ml
Calcium Hardness Photometer (TbsPCH)
Measurement procedure:
1 Fill 10 ml distilled water into the cuvette.
2 Add 1 Calcium Hardness Photometer tablet(s) to the test water in the cuvette.
3 Crush the tablet with a clean stirring rod.
4 Stir with the stirring rod for about 20 seconds until the reagent is completely dissolved.
5 Screw the lid back on the cuvette.
6 Insert the cuvette into the PrimeLab. Pay attention to the arrow on the front of the cuvette.
7 Wait for 02:00 minute(s).
8 Start ZERO measurement.
9 Remove the cuvette again.
10 Unscrew the lid from the cuvette.
11 Add exactly 2 ml sample water to the same cuvette.
12 Screw the lid back on the cuvette.
13 Swivel the cuvette back and forth for 5 times.
14 Insert the cuvette into the PrimeLab. Pay attention to the arrow on the front of the cuvette.
15 Tap TEST to perform the measurement.
16 The measured value is immediately displayed.
Notes:
The test result can be converted into the following unit(s): °dH, °eH, °fH.
If your reading is towards the upper limit of the test a dilution is recommended.
Deviations within different tablets might lead to different ZERO values. For this reason, the
function One-Time-Zero is not included.
Highly alkaline or acidic samples should be adjusted to pH 4 to 10 by adding 1 mol/l acetic acid
or1 mol/l caustic soda, respectively.
T77/204 T77/204