wtw Turb 350 IR, Operating Manual, Page: 35 / 42

Technical data
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7 Technical data
Measuring principle Nephelometric acc. to ISO 7027 / DIN EN 27027
Light source Infrared LED
Measuring range 0.01 - 1100 NTU
Resolution
Accuracy
(± 1 digit)
Response time 6 to 16 seconds
Calibration Automatic 1 - 4-point calibration
Ambient
temperature
Sample temperature 0 °C - 40 °C
Power supply
Within the range
0.01 - 9.99 NTU
Max 0.01 NTU
Within the range
10.0 - 100.0 NTU
Max 0.1 NTU
Within the range
0 - 500 NTU ± 2 % of the measured value
or ± last decimal place
Within the range
500 - 1100 NTU ± 3 % of the measured value
Storage - 25 °C ... + 65 °C
Operation 0 °C ... + 50 °C
Batteries 4 alkali-manganese
batteries, type AAA/Micro
Lifetime Approx. 1000 measurements