Hanna Instruments HI 96785 User Manual
Instruction Manual
HI 96785C
Honey Color
Analyzer
www.hannainst.com
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Dear Customer,
Thank you for choosing a Hanna product. This manual will provide you with the necessary
information for the correct use of the instrument. Please read it carefully before using the meter. If
you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com.
TABLE OF CONTENTS
PRELIMINARY EXAMINATION ................................................................................................ 3
GENERAL DESCRIPTION ....................................................................................................... 4
ABBREVIATIONS .................................................................................................................. 4
SIGNIFICANCE AND USE ...................................................................................................... 5
SPECIFICATIONS ................................................................................................................... 6
PRINCIPLE OF OPERATION ................................................................................................... 6
FUNCTIONAL DESCRIPTION .................................................................................................. 8
ERRORS AND WARNINGS .................................................................................................... 9
GENERAL TIPS FOR AN ACCURATE MEASUREMENT ............................................................. 11
STARTUP ........................................................................................................................... 12
MEASUREMENT PROCEDURE ............................................................................................. 12
BATTERY MANAGEMENT .................................................................................................... 14
BATTERY REPLACEMENT .................................................................................................... 14
ACCESSORIES ..................................................................................................................... 15
WARRANTY........................................................................................................................ 15
PRELIMINARY EXAMINATION
Please examine this product carefully. Make sure that the instrument is not damaged. If any
damage occurred during shipment, please notify your Dealer.
Each HI 96785 Ion Selective Meter is supplied complete with:
• Five Sample Cuvettes
• One Light Shield Cap
• 30 mL Glycerol (1 bottle)
• 9V Battery
• Cloth for wiping cuvettes
• Instrument quality certificate
• Instruction Manual
• Rigid carrying case
All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner,
Hanna Instruments Inc., Woonsocket, Rhode Island, 02895 , USA.
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Note: Save all packing material until you are sure that the instrument works correctly. Any
defective item must be returned in its original packing.
GENERAL DESCRIPTION
SIGNIFICANCE AND USE
The HI 96785 is an auto diagnostic portable microprocessor meter that benefits from Hanna’s
years of experience as a manufacturer of analytical instruments. It has the advanced optical
system based on two special tungsten lamps and two narrow band interference filters that allows
most accurate and repeatable readings. All instruments are factory calibrated and the electronic
and optical design minimizes the need of frequent calibration.
Display messages aid the user in routine operation. The meter has an auto-shut off feature that
will turn off the instrument after 10 minutes of non use in
The meter uses an exclusive positive-locking system to ensure that the cuvette is in the same
position every time it is placed into the measurement cell.
The HI 96785 measures the percent of light transmittance of honey compared to analytical
reagent grade glycerol. The instrument directly displays the measurement result expressed in
mm Pfund.
measurement mode
.
ABBREVIATIONS
Honey color varies naturally in a wide range of tonalities, ranging from light yellow to amber, dark
amber and black in extreme cases; sometimes green or red hues may also occur.
Color of untreated honey depends on botanical origin: for this reason color is very important for
definition and commercial classification of monofloral honeys. Honey darkens with aging, and other
changes in color may result from beekeeper’s interventions and from the different ways of conservation
(e.g.: use of old honeycombs, contact with metals, high temperatures, exposition to light, etc.).
The primary characteristic for commercial honey classification is color. Color classes are expressed in
millimeters (mm) Pfund grades, compared to an analytical grade Glycerol Standard Reference.
Table 1 reports the USDA classification for honey samples and the related mm Pfund values.
Table 2 shows the color of different monofloral honeys: data are obtained from a statistical set of
honey samples. The table reports for each type of honey: average value of color, standard deviation,
and the minimum and maximum values measured.
USDA Color Standards Designation Color Range Pfund Scale (mm)
Water White 8 or less
Extra White 8 to 17
White 17 to 34
Extra Light Amber 34 to 50
Light Amber 50 to 85
Amber 85 to 114
Dark Amber more than 114
mV:
mL:
LCD:
mm Pfund:
USDA:
millivolts
milliliter
Liquid Crystal Display
milliliters Pfund
US Department of Agriculture
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