10
3. Place the sample in the test chamber lining up the two
white lines and close the lid.
4. Press and hold the
ZERO
button until ZERO appears on
the LCD and release the button.
5. The screen will display 0.0 NTU.
6. All readings will be offset by the zero value until the meter
is recalibrated or zeroed with the 0NTU standard.
Data Hold
The Minimum/Maximum functions on the meter are disabled
during data hold. Also, new readings cannot be taken.
1. Press
HOLD
to freeze the reading on the display. “Hold”
appears at the top of the LCD and the reading remains on
the display until hold is disabled.
2. Press
HOLD
to return to Normal Mode.
