Lovibond CheckitDirect, Instruction Manual

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34 CheckitDirect_Cl-Br-pH-CyA-TA-CaH_2 09/2010
GB
Methods
CyA-TEST (Cyanuric acid) with Tablet
0 – 160 mg/l
Fill a clean vial (24 mm Ø) with 5 ml of the water sample and 5 ml
deionised water
(Note 1), close tightly with the cap.
Place the vial in the sample chamber making sure that the marks
are aligned.
Press the [ZERO/TEST] key.
The method symbol flashes for approx. 8 seconds.
Add one CyA-TEST tablet straight from the foil to the prepared 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 (Notes 2, 3).
Place the vial in the sample chamber making sure that the marks
are aligned.
Press the [ZERO/TEST] key.
The method symbol flashes for approx. 3 seconds.
The result is shown in the display in mg/l Cyanuric acid.
Tolerances:
0 – 50 mg/l: ± 10 mg/l
50 – 100 mg/l: ± 15 mg/l
100 – 160 mg/l: ± 20 mg/l
0.0.0
Zero
Test
Zero
Test
RESULT
Notes:
1. Use deionised water or tap water free of Cyanuric acid.
2. If Cyanuric acid is present a cloudy solution will occur.
Small single particles are not necessarily caused by Cyanuric acid.
3. Dissolve the tablet completely (therefore swirl the vial approx. 1 minute).
Un-dissolved particles of the tablet can cause results that are too high.
CyA
CyA