Xylem MPP 350 - Manual (Page 10)

Commissioning MPP 350
10 ba75434e02 07/2005
3.2.3 Mounting the D. O. module
Make sure that the D.O. module and conductivity measuring cell are screwed
together tightly. When mounted, the cap nut of the D.O. module has to be
screwed on up to the stop.
Before screwing on the D.O. module, check the following points:
! The sealing (3) must be clean and evenly positioned in the groove.
! The plug connection must be clean and dry on both sides.
Screwing on the
D.O. module
Position the D.O. module (1) on the conductivity measuring cell and carefully
and with slight pressure turn it until the guiding nib on the D.O. module locks
in place in the corresponding groove on the conductivity measuring cell.
Subsequently tighten the cap nut (2) up to the stop. The thread only snatches
if the D.O. module was correctly positioned.
Unscrewing and
storing the D. O.
module
Unscrew the cap nut and remove the D.O. module from the conductivity basic
module.
For storing, mount the clean and dry closing cap (4) on the D. O. module.
Thus the plug connection will remain optimally protected.
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1
3
Caution
Inappropriate handling can lead to the release of elec-
trolyte solution. When unscrewing the D.O. module
only turn the cap nut (not the membrane cap!).
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