Camlab Lovibond MD 610, Instruction Manual

Page: 194 / 371

188
MD 610_2d 11/2019
Nitrate
with Tube Test
1 – 30 mg/l N
Insert the adapter for 16 mm Ø vials.
1. Open one white capped reaction vial and add 1 ml
deionised water (this is the blank).
2. Open another white capped reaction vial and add 1 ml
of the water sample (this is the sample).
3. Add the contentsof one Vario Nitrate Chromotropic
Powder Pack straight from the foil into each vial.
4. Closethe vialstightly with the capsand and invert gently
severaltimesto mix the contents.
(CAUTION:The vials
will become hot during mixing!)
5. Press[ ] key.
Wait for a reaction period of 5 minutes .
After the reaction period is finished proceed as follows:
6. Placethe vial (the blank) in the samplechamber making
sure that the marks are
l
aligned.
7. Press ZERO key.
8. Removethe vial from the sample chamber.
9. Place the vial (the sample) in the sample chamber
making sure that the marks are
l
aligned.
10. Press TEST key.
The result is shown in the display in mg/l Nitrate.
Ø 16 mm
6 5 2
prepare Zero
press ZERO
1 2
3 4
Zero accepted
prepare Test
press TEST
Countdown 1
5:00
start: