7
6. Place the 0NTU bottle into the test chamber, lining the
vertical white line of the bottle with the white dot on the
meter. Close the lid and press the TEST/CAL button once.
The meter will ash the word CAL on the screen for up to
ten seconds.
Note…
If the word Test appears on the screen, you did not perform
step 6 fast enough and will need to repeat the process.
7. If the zero point calibration was successful, the meter
will stop blinking and display the number 100, prompting
for the 100NTU standard solution. Again, you will have
20 seconds to perform this step or the meter will exit
calibration mode.
8. Place the 100NTU bottle into the test chamber, lining
the vertical white line of the bottle with the white dot on
the meter. Close the lid and press the TEST/CAL button
once. The meter will ash CAL on the screen for up to
ten seconds.
Note…
If TEST appears on the screen, you did not perform the
100NTU point fast enough and will need to repeat the process.
9. If the calibration was successful, the screen will stop
blinking and display 0.0, indicating that it is ready to
test samples.
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