Measurement / Operation
NitraVis 70x IQ
28
ba75951e03
05/2017
4.3.3 Sensor check/
Zero adjustment
NOTE
The sensor check or Zero adjustment must be carried out under absolutely
clean conditions. If you do not work carefully enough the Zero adjustment can
deteriorate the measuring quality.
Ultrapure water
(H2O dist.)
As ultrapure water exclusively use distilled or deionized water that is suitable for
analysis purposes.
Storage location of
the
Zero adjustment
data
The data of the sensor checks are not stored.
The data of the user zero adjustment are stored in the sensor.
Outlet A successful
Sensor check (H2O dest.)
is the prerequisite for a valid user cali
-
bration. After each
Sensor check (H2O dest.)
the sensor is evaluated.
A changed sensor evaluation proves that the cleaning was effective.
The steps of the sensor check or
Zero adjustment
are identical except for the
used check solutions (ultrapure water or standard solution) and are described
together below. The sensor check and
Zero adjustment
are carried out with the
aid of the sensor sleeve.
