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  9. Hanna Instruments HI 729 User manual

Hanna Instruments HI 729 User manual

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Fluoride Low Range 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 729 meter is supplied complete with:
• Two Sample Cuvettes and Caps
• One bottle of Fluoride Low Range Reagent
• 1 mL syringe with tip
• 1 x 1.5V AAA Battery
• Instruction Manual
HI 729
Functional description:
Errors and warnings:
Light High: There is too much light to perform a measurement.
Please check the preparation of the zero cuvette.
Light Low: There is not enough light to perform a measurement.
Please check the preparation of the zero cuvette.
Inverted Cuvettes: The sample and the zero cuvette are inverted.
Under Range: A blinking “0.00” indicates that the sample absorbs
more light than the zero reference. Check the procedure and make
sure that the sample and zero cuvette are not inverted.
Over Range: A flashing value of the maximum concentration indicates
the reading is over range. Dilute the sample and re-run the test.
Battery Low: The battery must be replaced soon.
Dead Battery: This indicates that the battery is dead and must be
replaced. Once this indication is displayed, normal operation of the
instrument will be interrupted. Change the battery and restart the
meter.
1. Dust cover.
2. Cuvette with cap.
3. Cuvette holder.
4. Liquid Crystal Display.
5. Button.
For more details about spare parts and accessories
see “Accessories”.
www.hannainst.com
Technical specifications:
Range 0.00 to 2.00 ppm
Resolution 0.01 ppm
Accuracy ±0.10 ppm ±5 % of reading @ 25 °C / 77 °F
Light Source Light Emitting Diode @ 575 nm
Light Detector Silicon Photocell
Method Adaptation of the
Standard Methods for the Examination
of Water and Wastewater, 18th edition
, SPADNS method.
Environment 0 to 50 °C (32 to 122 °F);
max 95% RH non-condensing
Battery Type 1 x 1.5V AAA
Auto-Shut off After 2minutes of non-use
Dimensions 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight 64 g (2.25 oz.)
Dear Customer,
Thank you for choosing a Hanna Instruments Product.
Please read this instruction manual carefully before using the instrument. If you need
additional technical information, do not hesitate to e-mail us at [email protected]
or view our worldwide contact list at www.hannainst.com.
•Turn the meter on by pressing the button.
All segments will be displayed. When the
display shows “Add”, “C.1” with “Press”
blinking, the meter is ready.
•Using supplied syringe add 2 mL of HI 729S
SPADNS reagent to both cuvettes.
•Fill the first cuvette to the line with 8 mL of
deionized water and the second cuvette to
the line with 8 mL of sample. Replace the
cap and invert several times to mix.
•Place the first cuvette (deionized water) into
the meter and close the cap.
•Press and hold the button until the timer is
displayed on the LCD (the display will show
the countdown prior to the measurement)
or, alternatively, wait for 2 minutes and
press the button.
•When the display shows “Add”, “C.2” with
“Press” blinking the meter is zeroed.
•Remove the cuvette.
•Insert the second cuvette (sample) into the
instrument and press the button.
•The instrument directly displays the
concentration of fluoride in ppm. The meter
automatically turns off after 2 minutes.
•It is important that the sample does not contain any debris.
•Whenever the cuvette is placed into the measurement cell, it must be dry
outside, and completely free of fingerprints, oil and dirt. Wipe it thoroughly with
HI 731318 or a lint-free cloth prior to insertion.
•Shaking the cuvette can generate bubbles, causing higher readings. To obtain
accurate measurements, remove bubbles by swirling or by gently tapping the
cuvette.
•Do not let the reacted sample stand for too long after reagent is added, as
accuracy will be affected.
•After the reading it is important to immediately discard the sample, otherwise
the glass might become permanently stained.
REAGENT SETS
HI 729-26 Reagent set for 20 Fluoride Low Range tests (4 x HI 729S and a 1 mL
syringe with tip)
OTHER ACCESSORIES
HI 729-11 Fluoride LR Certified Standard Kit
HI 731318 Cloth for wiping cuvettes (4 pcs.)
HI 731321 Glass cuvettes (4 pcs.)
HI 731225 Cuvette black cap for checker HC (4 pcs.)
HI 731353 Cuvette seal cap for checker HC (4 pcs.)
HI 70436 Deionized water (1 gal)
HI 740028 1.5V AAA batteries (4 pcs.)
HI 740142 1 mL graduated syringe
HI 93703-50 Cuvette cleaning solution (230 mL)
Recommendations for Users
Before using this product, make sure that it is entirely suitable for your specific application and for the
environment in which it is used.
Operation of this instrument may cause unacceptable interferences to other electronic equipment, thus
requiring the operator to take all necessary steps to correct interferences.
Any variation introduced by the user to the supplied equipment may degrade the instrument’s EMC
performance.
To avoid damage or burns, do not put the instrument in microwave oven. For the safety of you and the
instrument do not use or store the instrument in hazardous environments.
For additional information, contact your
dealer or the nearest
Hanna Customer Service Center.
To find a Hanna Office in your area,
visit our web site:
www.hannainst.com
Hanna Instruments reserves the right to modify the design, construction or
appearance of its products without advance notice.
Battery management
To save the battery, the instrument shuts down after 2 minutes of non-use.
One fresh battery lasts for a minimum of 5000 measurements. When the battery is dead
the instrument will display “bAd” then ”bAt” for 1 second and then turns off.
To restart the instrument, the battery must be replaced with a new one.
To replace the instrument’s battery:
•Turn the instrument off by holding the button until the meter shuts off.
•Turn the instrument upside down and remove the battery cover with a screwdriver.
•Remove the battery from its location and replace it with a new one, inserting the
negative end first.
•Insert the battery cover and replace the screw with a screwdriver.
IST729 04 /13
Measurement procedure: Accessories:Tips for an accurate measurement
10 mL 10 mL