Hanna Instruments HI 96785 User Manual
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MEASUREMENT PROCEDURE
STARTUP
Prepare the instrument for measurement as follows:
• Unpack the instrument by removing the dust protection sleeve from the instrument cuvette
holder.
• Place the battery in the instrument as described in the “BATTERY REPLACEMENT” chapter.
• Place the instrument on a flat table.
• Do not place the instrument under direct sun light.
To compensate the meter for the sample turbidity or color, the measurement takes place in two
phases. First, the meter is calibrated using the glycerol. After the honey is measured.
• Turn the meter on by pressing
ON/OFF.
The display briefly shows all tags on.
• When the beeper sounds briefly and the
LCD displays dashes, the meter is ready.
The blinking
“CAL” indicates that the
instrument needs to be calibrated first.
• Fill one cuvette with 4 mL of Glycerol,
up to 5 mm (0.2’’) below the rim. This
is the Glycerol Standard Reference.
• Place the cuvette into the cuvette holder
paying attention to the direction of the
light indicated by the arrow on the
instrument. Then put the light shield cap
on and ensure that the notch on the cap
is positioned securely into the groove.
• Press
CAL and the lamp, cuvette and
detector icons will appear on the display,
depending on the measurement phase.
• After a few seconds, the display will
show
“-0.0-”. The meter is now calibrated
and ready for measurement.
• Remove the Glycerol cuvette.
• Add to a second clean cuvette about 4 mL
of honey, up to 5 mm (0.2’’) below the
rim. This is the sample.
• Place the sample cuvette into the cuvette
holder paying attention to the direction
of the light indicated by the arrow on the
instrument. Then put the light shield cap
on and ensure that the notch on the cap
is positioned securely into the groove.
• Press
READ and the lamp, cuvette and
detector icons will appear on the display,
depending on the measurement phase.
• At the end of measurement, the instrument
directly displays the honey color intensity
value expressed in mm Pfund, as compared
to analytical grade Glycerol (fixed at
zero Pfund).
WARRANTY
INTERFERENCES
Interference may be caused by air bubbles or turbidity in the sample. Scratched or dirty cuvettes
will also affect readings. Always check clearness of cuvettes prior to use.