Xylem MPP 350 - Manual (Page 13)

MPP 350 Measuring / Operation
13 ba75434e02 07/2005
4.2 Measuring
Please always observe the required minimum immersion depth and the
minimum approach flow that is important for D.O. measurements (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, e. g. a magnetic stirrer or the battery-powered stirrer,
BR MPP 350. The battery-powered stirrer BR MPP 350 also serves as a
protective hood at the same time and is screwed on instead of the stan-
dard protective hood.
4.3 Storing
The sensor with the D.O. module must always be stored in the calibration
vessel. Make sure that the sponge in the calibration vessel is always moist.
Note
For further notes concerning the storing of the electrode refer to the electrode
operating manual.
Caution
If the BR 325 MPP is used in salt water (seawater, brack-
ish water), thoroughly rinse and clean with tapwater
(freshwater!) afterwards. Otherwise, corrosion damage
may occur.
Ein
On
Aus
Off
Battery-powered
stirrer,
BR MPP 350