Xylem WTW ColorVis 705 IQ, Руководство по эксплуатации, Страница: 26 / 56

Measurement / Operation
ColorVis 705 IQ
26 ba77260e01 06/2021
sensor. A zero adjustment can be required if, for example, the
Sensor check
(H2O dest.)
is not successful even after the sensor was thoroughly cleaned.
If the
Zero adjustment
is not successful, the sensor is blocked for measurement.
A successful
Zero adjustment
is required for the determination of measured val
-
ues.
Sensor check
(standard)
Use the
Sensor check (standard)
to check the sensor with a standard solution
(see chapter 6 S
PARE PARTS
,
MAINTENANCE EQUIPMENT
,
ACCESSORIES
). During
the check, the recorded spectrum is compared to a reference spectrum of the
standard solution stored in the sensor.
The sensor should always be very thoroughly cleaned prior to a zero
adjustment.