Xylem MPP 350 - Manual (Page 9)

MPP 350 Commissioning
9 ba75434e02 07/2005
3.2 Getting the sensor ready for measuring
3.2.1 Measurements without D. O. module
Make sure that the plug connector of the conductivity measuring cell is tightly
closed with the suitable closing cap. When mounted, the closing cap (1) must
be screwed on up to the stop.
Before screwing on the closing cap, check the following points:
! The sealing (2) must be clean and evenly positioned in the groove.
! The plug connection and the inside of the closing cap must be clean and
dry.
3.2.2 Measurements without pH electrode
Make sure the electrode receptacle on the basic module (1) is tightly closed
with the plug (2) and the protective hood (4) is screwed on up to the stop. Be-
fore plugging in, check whether the sealing (3) of the plug is clean and cor-
rectly positioned. The sealing should always be slightly greased (with the O
ring grease of the pH electrode).
5 Small parts (adapters etc...) 12 Polishing film
6 MPP 350 with OxiCal
®
-MPP 13 pH/cond calibration vessel
7 Connection cable
Caution
Never operate the MPP 350 without the protective
hood. The protective hood fixes the pH electrode or
plug in the electrode receptacle and guarantees a pres-
sure-resistant sealing. It especially protects the pH
electrode from mechanical damage.
1
2
3
2
4
1