9
5. Repeat steps 3 and 4 for all samples. The meter can
analyze up to 50 samples.
6. Press the
MIN/MAX
button when you are finished with
all samples. After pressing the MIN/MAX button, no new
values can be added to the set.
7. Press the
MIN/MAX
button as often as needed to display
the minimum and maximum turbidity values of the data set
in NTU.
8. Press and hold the Min/Max button to exit the Multi-
Point mode.
9. After exiting, all values are cleared. Therefore, the next
time you enter Multi-Point mode, the meter will only
analyze the samples within the new set.
Zero Point Adjustment
This feature is used for low turbidity systems such as well
water, tap water, or surface water from lakes and rivers. This
method is effective for any solutions whose expected value
is <2.0 NTU. The feature allows you to define a custom
standard for the zero value. All successive measurements
will be offset by this zero value.
Note…
The Zero Adjustment is NOT a calibration. Calibration
is performed using the 0NTU and 100NTU solutions as
described on page 6.
1. Obtain a sample of your zero standard. This standard
should be the lowest turbidity seen in your sample sets.
For example, if you were testing a filtration system for
drinking water, you would want to obtain a sample from
the most successful filtration produced.
2. Place your sample in one of the included test bottles,
tighten the cap and ensure the outside of the bottle is free
of fingerprints.
