Xylem CellOx 325 Dissolved oxygen sensor - Manual (Page 6)

Measuring / Operation CellOx 325
22
4 Measuring / Operation
4.1 Calibration
Note
For calibration, please refer to the operating manual of the measuring instru-
ment.
4.2 Measuring
Please note the required minimum immersion depth and minimum flow (see
chapter 7 T
ECHNICAL DATA ).
The minimum flow can be provided in different ways, e. g.:
l
The flow velocity of the water to be measured is sufficient (aeration tank,
water pipe, stream)
l
Slowly pull the sensor through the water by hand (lake, container), or
l
Use a flow aid, e. g. a magnetic stirrer with stirring device (see chapter 8
W
EAR PARTS AND ACCESSORIES )
4.3 Storage
Always store the sensor in the calibration vessel at a temperature of 0 to
+50 °C. Make sure that the sponge in the calibration vessel is always moist.
Calibration vessel,
OxiCal
®
-SL
Moisten the sponge:
l
Remove the cap (1).
l
Take out the sponge (2), wet it, then slightly squeeze it out.
l
Reinsert the sponge and close the calibration vessel with the cap.
1 2