wtw AmmoLyt Plus 700 IQ, Руководство по эксплуатации, Страница: 41 / 62

AmmoLyt
® Plus
700 IQ Measuring
5 - 1 ba75651e03 08/2009
5 Measuring
5.1 Measuring operation
Note the data given in section 9.2 A
PPLICATION CONDITIONS
, especially
the minimum immersion depth of the sensor (> 50 mm with mounted
protective hood).
Note
To keep the sensor clean, we recommend to use the CH cleaning head
(see chapter 7 R
EPLACEMENT PARTS AND ACCESSORIES
).
5.2 Factors affecting the measured value
Caution
Greases, oils, certain tensides and similar substances can
shorten the operational lifetime of the electrodes. Therefore, they
should not be present in the test sample.
Ammonium measurement with the AmmoLyt
® Plus
700 IQ can be
affected by the following variables:
z
pH value
z
Potassium ions
Note
The effects of influencing variables on measurement and
compensating actions are described in detail in the WTW primer, I
ON
SELECTIVE MEASUREMENT IN ONLINE ANALYSIS
.