PrimeLab 1.0 MULTITEST User Manual page 211

Ozone
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B) Measurement procedure for "Ozone without chlorine"
1) Fill 10ml of the sample water into a clean 24mm cuvette.
One-Time-Zero:
Measure new ZERO
Use last ZERO
1 2 3
!
2) Replace the screw lid on the cuvette and insert it into the PrimeLab
sampling chamber. Align the arrow on the front of the cuvette. Press
4
ZERO.
3) Remove the cuvette from the chamber and unscrew the lid.
4) Empty the cuvette except for a few drops. Add a "DPD N° 1
Photometer" tablet to the sample in the cuvette.
5) Add a "DPD N° 3 Photometer" tablet in the same cuvette.
6) Crush both tablets with a clean stirrer until these have dissolved
completely.
7) Fill sample water into the same cuvette up to the 10ml level.
8) Replace the lid on the cuvette, swirl it carefully and insert it into the
sampling chamber of the PrimeLab. Align the arrow on the front of the
4
cuvette. Press TEST.
9) After the lapse of a 2 minute countdown the determined result is
displayed. Press button 4 to save this together with date and time in the
4
device.
!
Assessment of the measurement value relative to the ideal range defined by you.
Measurement value for this parameter is outside the value range of this method.
178
0 - 5.4 mg/l
Name on device: 37-Ozone-tab
If after switching on the device you have already performed the
ZERO (baseline) adjustment for the same type, the following
message is displayed:
-> Measure new ZERO
-> Use last ZERO
4
For the sake of precision select "Use last ZERO" only
if the stored ZERO value is used with the
same cuvette and the same water sample for the test!
Possible messages in the line below the measurement value:
"low! / high! / good!":
"Overrange! / underrange!":
(O )
3
= continue with step 2)
= continue with step 4)
Tablet
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178