Hanna instruments HI 96759C User Manual
Instruction Manual
HI 96759C
Maple Syrup
Transmittance 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
PRINCIPLE OF OPERATION .................................................................................................6
FUNCTIONAL DESCRIPTION ................................................................................................ 7
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 96759 Ion Selective Meter is supplied complete with:
• Six Sample Cuvettes
• One Light Shield Cap
• Two 5 mL Syringes
• 30 mL Glycerol (1 bottle)
• 9V Battery
• Tissue 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 96759 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 a special tungsten lamp and a narrow band interference filter that allows most
accurate and repeatable readings. All instruments are factory calibrated and the electronic and
optical design minimizes the need of frequent calibration.
All instruments are splash waterproof and the lamp and filter units are protected from dust or dirt
by a transparent cup. This makes the instruments fulfill field applications. 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
calibration mode
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. It is designed to fit a cuvette with a
larger neck making it easier to add both sample and reagents. The cuvette is made from special
optical glass to obtain best results.
The HI 96759 measures the percent light transmittance of maple syrup compared to analytical
grade glycerol. The transmittance value allows identification of the syrup quality class.
.
measurement mode
or after 1 hour if left in
ABBREVIATIONS
degree Celsius
°C:
degree Fahrenheit
°F:
milligrams per liter. mg/L is equivalent to ppm (parts per million)
mg/L:
milliliter
mL:
mV:
millivolts
LCD:
Liquid Crystal Display
The primary characteristic for classifying maple syrup is color. When syrup is very light in color,
as matching the minimum light transmittance standards, the grade assigned to syrup is high.
When syrup color is dark, the grade is low. Color classes are expressed in percent of light
transmission as compared to an analytical Glycerol Standard Reference fixed at one hundred
percent transmission. All syrup is considered to be at minimum density, 66.0 degrees Brix at
68 °F (20 °C), and to have no flavors or other characteristics extraneous to pure maple syrup.
Color Class Range (% Tansmittance)
Grade A Light Amber 75.0 to 100.0
Grade A Medium Amber 60.5 to 74.9
Grade A Dark Amber 44.0 to 60.4
Grade B for reprocessing 27.0 to 43.9
Substandard less than 27.0
SPECIFICATIONS
Range 0.0 to 100.0% Transmittance
Resolution 0.1% Transmittance
Accuracy ±3% @ 75.0% Transmittance
Typical EMC Deviation ±0.1% Transmittance
Light Source Tungsten lamp
Light Detector Silicon Photocell with narrow band interference filter @ 560nm
Method Direct Measurement
Environment 0 to 50°C (32 to 122°F); max 95% RH non-condensing
Battery Type 1 x 9 volt
Auto-Shut off After 10' of non-use in
after 1 hour of non-use in
with last reading reminder.
Dimensions 192 x 102 x 67 mm (7.6 x 4 x 2.6")
Weight 290 g (10 oz.).
REQUIRED STANDARD
Description Quantity/test
Glycerol 4 mL
measurement mode
calibration mode
;
;
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