User Guide

GUIDE TO DISPLAY CODES

After TIMER is pressed, a blinking hourglass icon appears and the

display shows a 7 minutes coundown. Also the Zero tag might

blink if no zero measurement has been made before. At the end of

the countdown an acoustic signal alerts the user that the timer is

finished.

Indicates that the instrument is in a ready state and waiting for the

next command (Timer or Zero).

These prompts indicate the type of power supply: “Line” (if the

external power supply is used) or the battery level.

This prompt appears for a few seconds each time the instrument is

turned ON.

The instrument is zeroed and a measurement can be made.

Indicates that the meter is making a measurement.

Batteries voltage is getting low and the batteries need to be

replaced.

Indicates that the meter is performing a zero measurement. The

light intensity is automatically re-adjusted (auto-calibration features)

if necessary.

SAMPLE PREPARATION FOR RED WINE

To remove interference of phenols, samples of Red

Wine must be treated with activated carbon.

• Fill one cuvet with 10 mL of Red Wine.

• Add 2 spoons of HI 93703-59 Charcoal to the

cuvet.

• Cap the cuvet and mix vigorously for 2 minutes.

Then wait for 3 minutes.

• Fold a filter disc twice as shown in the figure.

Separate one side from the other three to form a

cone. Insert the folded filter disc in the funnel.

• Filter the treated wine into an empty cuvet. This

is the wine sample.

Note: if the filtered wine is still red, repeat the

above procedure.

MEASUREMENT PROCEDURE