Water I.D. Primelab 2.0, Manual

Page: 171 / 301

(161)
Manganese VLR
0.000 - 0.030 mg/l (Mn)
Tablet
Internal Name: 161-Manganese-VLR
10ml
Manganese VLR N°1 Photometer
(TbsHMagVLR1)
Manganese VLR N°2 Photometer
(TbsPMagVLR2)
Measurement procedure:
1 Fill 10 ml test water into a clean 24 mm cuvette.
2 Screw the lid back on the cuvette.
3 Insert the cuvette into the PrimeLab. Pay attention to the arrow on the front of the cuvette.
4 Start ZERO measurement.
5 Remove the cuvette again.
6 Unscrew the lid from the cuvette.
7 Add 1 Manganese VLR N°1 tablet(s) to the test water in the cuvette.
8 Crush the tablet with a clean stirring rod.
9 Add 1 Manganese VLR N°2 tablet(s) to the test water in the cuvette.
10 Crush the tablet with a clean stirring rod.
11 Stir with the stirring rod for about 20 seconds until the reagent is completely dissolved.
12 Screw the lid back on the cuvette.
13 Gently swirl the cuvette to mix the liquid well.
14 Insert the cuvette into the PrimeLab. Pay attention to the arrow on the front of the cuvette.
15 Tap TEST to start a 20:00 minute(s) countdown.
16 After the lapse of a 20:00 minute(s) countdown the measured value is displayed.
Notes:
Colour formation is extremely temperature sensitive. A temperature of 20 °C +/- 1 °C gives the
optimum test results.
For optimum test results, the sample needs a standing period of 20 min +/- 1 minute. Further
colour change and colour development after this time should be ignored.
T116/204 T116/204