wtw pHotoFlex, Operating Manual

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Technical data pHotoFlex / pHotoFlex Turb
96 ba75491e05 04/2009
7.3 pH value / ORP voltage
7.4 Turbidity
Measuring ranges,
resolution
Variable Measuring range Resolution
pH - 2.00 ... + 16.00 0.01
U [mV] - 1000 ... + 1000 1
T [°C] - 5.0 ... + 100.0 0.1
T [°F] - 23.0 ... + 212.0 0.1
Manual
temperature input
Variable Range Increment
T
manual
[°C] - 20 ... + 100 1
Accuracy (± 1 digit) Variable Accuracy Temperature of the test
sample
pH * ± 0.01 + 15 °C ... + 35 °C
U [mV] ± 1 + 15 °C ... + 35 °C
T [°C] ± 0.3 0 °C ... + 55 °C
T [°F] ± 0.54 0 °C ... + 55 °C
* when measuring in a range of ± 2 pH around a calibration point
Measuring principle Nephelometric measurement according to DIN EN ISO 7027
Light source Infrared LED
Measuring range 0.01 ... 1100 NTU/FNU
Resolution in the range
0.01 ... 9.99
max 0.01 NTU/FNU
in the range
10.0 ... 99.9
max 0.1 NTU/FNU
in the range
100 ... 1100
max 1 NTU/FNU
Accuracy in the range
0 ... 1000 NTU/FNU ± 2% of the measured value
or ± 0.01 NTU/FNU
Measuring time 4 seconds
Calibration Automatic 3-point calibration