wtw Oxi 3310, Operating Manual

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Technical data Oxi 3310
52 ba75804e06 03/2012
7.2 Measuring ranges, resolution, accuracy
Note
The accuracy values specified here apply exclusively to the meter. The
accuracy of the D.O. sensors has also to be taken into account.
Measuring ranges,
resolution
Note: The values quoted in brackets apply especially for the
DurOx 325 sensor.
Parameter Measuring range Resolution
D.O. concentration
[mg/l] 0 ... 20.00 (0 ... 20.0)
0 ... 90.0 (0 ... 90) 0.01 (0.1)
0.1 (1)
Saturation [%] 0 ... 200.0 (0 ... 200)
0 ... 600 0.1 (1)
1
D.O. partial pressure
[mbar] 0 ... 200.0 (0 ... 200)
0 ... 1250 0.1 (1)
1
T [°C] 0 ... 50.0 0.1
Accuracy (± 1 digit) Parameter Accuracy
D.O. concentration
[mg/l] ± 0.5 % of measured value
at ambient tempe 5 °C ... + 30 °C
Saturation [%] ± 0.5% of measured value
when measuring in the range of ± 10 K
around the calibration temperature
D.O. partial pressure
[mbar] ± 0.5 % of measured value
at ambient tempe 5 °C ... + 30 °C
T [°C] / temperature sensor
NTC 30 ± 0,1
PT 1000 ± 0,1
Correction functions Temperature
compensation Accuracy better than 2 % at 0 ... + 40 °C
Salinity correction 0 ... 70.0 SAL
Air pressure
correction Automatic through integrated pressure
sensor in the range of 500 ... 1100 mbar