www.milwaukeeinst.com
11
CALIBRATION PROCEDURE
Calibration should be performed daily, before measurements are made, when the
battery has been replaced, between a long series of measurements, or if environmental
changes have occured since the last calibration.
1. Press the
ON/OFF
key, then release. Two instrument test screens will be displayed
briefly; all LCD segments followed by the percentage of remaining battery life. When
the LCD displays dashes, the instrument is ready.
2. Using a plastic pipette, fill the sample well with distilled or deionized water. Make
sure the prism is completely covered.
Note
: If the ZERO sample is subject to intense light such as sunlight or another strong
source, cover the sample well with your hand or other shade during the
calibration.
3. Press the
ZERO
key. If no error messages appear, your unit is calibrated.
(For a description of ERROR MESSAGES see page 17).
Note
: The 0.0 screen will remain until a sample is measured or the power is turned off.
