Xylem WTW CellOx 325, Operating Manual

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CellOx 325 Measuring / Operation
7 ba25301e06 12/2017
4 Measuring / Operation
4.1 Calibration
Note
For calibration, please refer to the operating manual of the measuring
instrument.
4.2 Measuring
Note the required minimum depth of immersion and minimum approach flow
(see chapter 7 T
ECHNICAL DATA
).
The minimum flow can be provided in different ways, e. g.:

The flow of the water to be measured is sufficient (aeration tank, water
pipe, stream)

Slowly pull the sensor through the water by hand (lake, container), or

Use a flow aid such as a magnetic stirrer with stirring device (see
chapter 8 W
EAR PARTS AND ACCESSORIES
)
4.3 Storage
Always store the sensor in the calibration and storage vessel at a
temperature in the range 0 ... +50 °C (32 ... 122 °F). Make sure that the
sponge in the calibration and storage vessel is always moist.
OxiCal
®
-SL
calibration and
storage vessel
Moisten the sponge:

Remove the cap (1).

Take out the sponge (2), wet it, then slightly squeeze it out.

Insert the sponge again and close the calibration and storage vessel with
the lid.
1 2