• 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
HI729S
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.
8 mL
8 mL
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.
Cover
Cuvette with cap
Cuvette holder
LCD Liquid Crystal Display
Operation Button
Functional Description
Errors and Warnings
Measurement Procedure
Hanna Instruments reserves the right to modify the design, construction or appearance of
its products without advance notice.
Thank You
Thank you for choosing a Hanna Instruments product. Please read this instruction
manual carefully before using the instrument.
For more information about Hanna Instruments and our products, visit
www.hannainst.com.
For technical support, contact your local Hanna Instruments Office or e-mail us at
[email protected].
Find your local Hanna Instruments Office on www.hannainst.com.
Please examine this product carefully. Make sure that the instrument is not damaged. If
any damage occurred during shipment, please contact your local Hanna Instruments Office.
Each
HI729
meter is supplied complete with:
• Sample Cuvettes and Caps (2 pcs.)
• Reagent for 6 tests
• 1 mL syringe with tip
• 1.5V AAA Battery (1 pc.)
• Instruction Manual and Quick Reference Guide
Preliminary Examination
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, 18
th
edition, SPADNS method.
Environment
0 to 50 °C (32 to 122 °F); max 95% RH non-condesing
Battery Type
1.5V AAA (1 pc.)
Auto-Shut off
After 10 minutes of non-use and 2 minutes after reading
Dimensions
86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”)
Weight
52 g (1.84 oz.)
Specifications