8
Measurement and Calibration
Calibrating the meter
2.1 Press the
Cal
key to enter the calibration mode, the display shows
NTU/
. If necessary, press the
◄
/
►
key to select a
calibration point close to the sample value you are measuring.
2.2 Take out the corresponding calibration standard from carrying case. Wipe the vial with a lint-free cloth to remove fingerprints.
2.3 Hold the vial cap and gently inverting vial several times. Ensure that the calibration standard is homogeneous and no air bubbles.
2.4 Insert the calibration standard into the measurement chamber, the mark on the vial cap aligns with the arrow on the meter. Close the light
shield lid.
2.5 Press the
Enter
key, the meter begins the calibration. The Calibration icon continuously flashing.
2.6 Wait for the reading to stabilize, the meter automatically shows the next calibration point.
2.7 If necessary, press the
►
key to select an applicable calibration point.
2.8 Repeat steps 2.2 through 2.5 until the meter shows
. Calibration is completed.
To exit the calibration mode without saving the calibration, press the
Meas
key.
Turbidity Measurement
Selecting the measurement mode
The TB100 portable turbidity meter contains two measurement modes. If the single measurement mode is enabled, the meter will automatically
recognize a stable reading and lock the measurement. If the continuous measurement mode is enabled, the meter will continuously updating the
measured values. To set this option follow the steps below.
1.
Press and hold the
key for 3 seconds to enter the setup menu.
2.
Press the
►
key until the display shows
/
(Hold/Page 5).
3.
Press the
Enter
key, the display shows
/
indicating that the single measurement mode is selected.
4.
Press the
►
key, the display shows
/
indicating that the continuous measurement mode is selected.
5.
Select one of the above options, press the
Enter
key to confirm.
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