Xylem MPP 350 User Manual
Page 27
MPP 350
Technical data
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07/2005
Measurement
conditions
Measuring ranges at 20 °C
0 ... 50 mg/l D.O.
0 ... 600 % D.O. saturation
0 ... 1250 mbar D.O. partial pressure
Polarization time
min. 30 ... 50 min after changing the electro-
lyte,
it is not necessary to connect the sensor to
the meter for polarization
Temperature range
0 ... 50 °C
Max. allowed overpressure
10
6
Pa (10 bar)
Depth of immersion with
conductivity basic module
min. 130 mm (with protective hood and sink-
er)
max. 100 m (depending on the cable length)
Operating position
any
Approach flow
> 3 cm/s at 10 % measurement accuracy
10 cm/s at 5 % measurement accuracy
18 cm/s at 1 % measurement accuracy
Storage
conditions
Recommended storing
method
in the OxiCal
®
-CX calibration vessel (moist-
ened)
Storage temperature
0 ... 50 °C
Characteristic data
on delivery
Zero signal
< 0.1 % of the saturation value
Response time at 20 °C
t
90
(90 % of the final value display after)
< 10 s
t
95
(95 % of the final value display after)
< 16 s
t
99
(99 % of the final value display after)
< 60 s
Own consumption of oxy-
gen at 20 °C
0.008
µg·h
-1
(mg/l)
-1
Drift
approx. 3 % per month in the operating con-
dition
Working life
min. 6 months with one electrolyte filling