User Manual
KS-TB-100 | Portable Turbidity
Meter
Kensington Scientific
22a Cavan Rd, Dry Creek
South Australia, 5094
[email protected]
www.kensingtonscientific.com.au
SINGLE MEASUREMENT FOR HIGH TURBIDITY SAMPLES
1. The high turbidity samples (>1100 NTU) must be diluted before measurement.
2. The dilution water can be obtained by filtering deionized water through a <0.45µm filter membrane.
3. Repeat steps 1.1 to 1.7 above and record the measured value.
4. Calculate the true turbidity of the original sample using the following formula:
Where: T = True turbidity of the original sample, Td= Measured value, Vs= Volume of the original sample (mL), Vd=
Volume of the dilution water (mL).
CONTINUOUS MEASUREMENTS
1. Select the continuous measurement mode in the setup menu (Refer to page 10 "Selecting the measurement
mode").
2. Fill the vial with the sample. Cap the vial.
3. Gently invert the vial several times to mix the sample.
4. Wipe the vial with the lint-free cloth to remove waterdrops and fingerprints. Ensure that the outside of the vial is dry
and clean.
5. Place the vial in the sample chamber. Align the mark on the vial with the arrow on the meter.
6.
Close the light shield lid. Press MEAS key, the “Measure” icon begins flashing.
7. Press and hold the power button to turn off the meter and exit continuous calibration mode.
SPECIFICATIONS
Measurement Method
ISO 7027 nephelometric method (90°)
Measurement Range
0~1100 NTU/FNU, 0~275 EBC, 0~9999 ASBC
Resolution
0.01 (0~100 NTU), 0.1 (100~999 NTU), 1 (999~1100 NTU)
Accuracy
± 2% (0~500 NTU), ± 3% (501~1100 NTU)
Default Calibration
Standards
0.02 NTU, 10.00 NTU, 200 NTU, 500 NTU, 1000 NTU or User-Defined
Light Source
Infrared-emitting diode (850 nm wavelength)
Detector
Silicon Photodiode
Stray Light
< 0.02 NTU
Sample Vials
60(H) × 25(Dia)mm
Power Off
Manual or Automatic (15 minutes)
Reset Function
Yes
Memory
Stores up to 100 data sets
Output
USB Communication Interface
Operating Temperature 0
0~60°C
Power Requirements
1× 9V Battery
Dimensions
180(L)× 85(W)× 70(H)mm
