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
HI772
meter is supplied complete with:
• Sample Cuvettes and Caps (2 pcs.)
• Reagents for 25 tests
• 1 mL syringe with tip
• 1.5V AAA Battery (1 pc.)
• Instruction Manual and Quick Reference
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
“0.0”
indicates that the sample absorbs less
light than the zero reference. Check the procedure and make sure you use
the same cuvette for reference (zero) and measurement.
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.
For more details about spare parts and accessories see “Accessories”.
HI772
Marine Alkalinity
INSTRUCTION MANUAL
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]
Preliminary Examination
Specifications
Range
0.0 to 20.0 dKH
Resolution
0.1 dKH
Accuracy
±0.3 dKH ±5% of reading @ 25 ˚C / 77 ˚F
Light Source
light emitting diode @ 610 nm
Light Detector
silicon photocell
Method
Colorimetric method. The reaction causes a distinctive range of
colors from yellow to green to greenish blue to develop
Environment
0 to 50 °C (32 to 122 °F); RH max 95% non-condensing
Battery Type
1.5V AAA (1 pc.)
Auto-off
after 10 minutes of non-use
Dimensions
86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”)
Weight
64 g (2.3 oz)
Functional Description
Cover
Cuvette with cap
Cuvette holder
LCD Liquid Crystal Display
Operation Button
Errors and Warnings
