Chlorine dioxide with tablet 0.02 ... 11
mg/l
Use the
[MODE] key to select [CdO].
1.
In a 24 mm cuvette add a 10 ml
water sample and carry out a
zero correction, see
2.
Remove the cuvette from the
sample chamber and empty the
cuvette down to the last few
drops of the water sample
3.
Insert a
[DPD No. 1] tablet
directly from the foil into the
water sample and crush the
tablet with a stirring rod
4.
Fill the cuvette up to the 10 ml
marking with the water sample
5.
Close the cuvette using the cuv‐
ette lid
6.
Mix the contents of the cuvette
by tipping it back and forth, until
the tablet has dissolved
7.
Position the cuvette in the
sample chamber
ð
Observe the correct posi‐
tioning of the cuvette.
8.
Press the key
[ZERO/TEST]
ð
[METHOD] flashes for
approximately 3 seconds.
The result in mg/l of chlorine
dioxide appears in the dis‐
play.
9.
Measuring tolerances when
determining the chlorine
dioxide content:
–
0 ... 1.9 mg/l: ± 0.1 mg/l
–
> 1.9 ... 3.8 mg/l: ± 0.2
mg/l
–
> 3.8 ... 5.7 mg/l: ± 0.4
mg/l
–
> 5.7 ... 7.6 mg/l: ± 0.6
mg/l
–
> 7.6 ... 11 mg/l: ± 0.8
mg/l
Analysis methods
28