wtw Turb 430 IR/T, Operating Manual

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Turb 430 IR/T Technical data
59 ba75507e05 07/2016
7.2 Turbidity
7.2.1 Turb 430 IR
7.2.2 Turb 430 T
Measuring principle Nephelometric measurement according to DIN EN ISO 7027
Light source Infrared LED
Measuring range 0.01 ... 1100 FNU/NTU
Resolution in the range
0,01 ... 9,99
max. 0.01 FNU/NTU
in the range
10,0 ... 99,9
max. 0.1 FNU/NTU
in the range
100 ... 1100
max. 1 FNU/NTU
Accuracy in the range
0 ... 1100 FNU/NTU ± 2 % of the measured value
or ± 0.01 FNU/NTU
Reproducibility 0,5% of the measured value
Response time 4 seconds
Calibration Automatic 3-point calibration
Measuring principle Nephelometric measurement according to US EPA 180.1
Light source White light tungsten lamp
Measuring range 0.01 ... 1100 NTU
Resolution in the range
0,01 ... 9,99
max. 0.01 NTU
in the range
10,0 ... 99,9
max. 0.1 NTU
in the range
100 ... 1100
max. 1 NTU
Accuracy in the range
0 ... 500 NTU ± 2 % of the measured value
or ± 0.01 NTU
in the range
500 ... 1100 NTU ± 3 % of the measured value
Reproducibility 1% of the measured value
Response time 7 seconds
Calibration Automatic 3-point calibration