Xylem MPP 350 - Manual (Page 6)

Overview MPP 350
6 ba75434e02 07/2005
The basic module is the basic component of the operable sensor. It can be
used as a stand-alone conductivity measuring cell with temperature sensor.
By mounting the D. O. module and/or pH electrode the basic module can be
extended to form a multi parameter probe for pH, dissolved oxygen, conduc-
tivity and temperature.
The D.O. module is connected to the basic module via a watertight, three-
pole plug connection. The conductivity measuring cell measures the temper-
ature, which is required for the determination of the D.O. content. For this
reason the D.O. module only works in conjunction with the basic module.
The pH electrode is electrically connected to the basic module via an S7 plug-
in connection. It is mechanically fixed with the aid of the protective hood.
Recommended
fields of
application
! On site measurements in rivers, lakes, sea water and brackish water as
well as waste water
! Measurements in boreholes (up to a diameter of two inches) up to 100 m
depth
! Fishfarming
! Measurements in ground water and spring water
! Applications in water laboratories
1.2 Instrument identification
A series number is printed on every module. Keep these numbers ready if
you have questions to ask the WTW service department.
The series numbers contain the following information:
Basic module The number is imprinted on the shaft of the conductivity measuring cell.
Dissolved oxygen
(D.O.) module
The number is imprinted on the cap nut.
pH electrode For notes concerning the series number of the electrode refer to the electrode
operating manual.
1 Manufacturing year 20... (example: 2004)
2 Calendar week of manufacturing (CW 36)
3 Sequential batch number (0013)
04360013
1 2 3
1 Manufacturing year 20... (example: 2004)
2 Calendar week of manufacturing (CW 42)
3 Sensor type (type A)
4 Sequential batch number (007)
0442A007
1 2 3 4