Xylem 201570, Operating Manual

Page: 16 / 20

Technical data DurOx 325
16 ba25400e04 10/2020
Pin assignment
Measurement
conditions
Measuring ranges at 20 °C
(68 °F) 0 ... 50 mg/l D.O.
0 ... 600 % D.O
.
saturation
0 ... 1250 mbar D.O. partial pressure
Temperature range 0 ... 40 °C (32 ... 104 °F)
Depth of immersion min. 4 cm
max. 6 m (depending on the cable length)
Operating position Any
Approach flow > 2,5 cm/s with 10 % measurement accuracy
5 cm/s
with 5 % measurement accuracy
Storage
conditions
Recommended storing
method in the calibration and storage vessel,
OxiCal
®
-ST (moist)
Storage temperature 0 ... 40 °C (32 ... 104 °F)
Characteristics
when delivered Zero signal < 1 % of the saturation value
Response time of D.O.
measurement at 20 °C
(68 °F) t
90
(90 % of the final value display after) < 25 s
t
95
(95 % of the final value display after) < 40 s
t
99
(99 % of the final value display after)
< 125 s
Own consumption of
oxygen at 20 °C (68 °F) 0.006
μ
g·h
-1
(mg/l)
-1
Drift Approx. 3 % per month in the operating
condition
Response time of
temperature measurement t
99
(99 % of the final value display after) < 60 s
Precision of temperature
measurement ± 0.2 K
Working life min. 6 months with one electrolyte filling
Working electrode
Counter electrode
Auxiliary electrode
Plug (8 Pin)
from the front:
AE
GE
7
5
3
1
8
6
4
2
NTC 1
30 k
Ω
NTC 2
30 k
Ω
not used
Coding
NTC 2
NTC 1
NTC 1
Shield, NTC 2
4
5
7
3 8
2
6
1