Hanna Instruments Checker HI772 - User Manual

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
tech@hannainst.com
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

Summary

Product Introduction and Overview

Thank You

Expression of gratitude for purchasing the Hanna Instruments product and advice to read the manual.

Preliminary Examination

Instructions for checking the product for damage and verifying supplied components.

Specifications

Detailed technical specifications of the H1772 Marine Alkalinity checker.

Functional Description

Description of the instrument's main components and their functions.

Errors and Warnings

Explanation of various error codes and warning indicators displayed by the instrument.

Operating Instructions

Measurement Procedure

Step-by-step guide on how to perform an alkalinity measurement using the instrument.

Tips for Accurate Measurement

Advice on factors affecting measurement accuracy, such as sample cleanliness and bubbles.

Battery Management

Information on battery life, low battery indication, and replacement procedure.

Product Support and Information

Accessories

List of available spare parts and accessories for the H1772 checker.

Warranty

Details of the product's warranty period and conditions.

Recommendations for Users

General advice for users regarding safe and effective use of the instrument.

Hanna Instruments Checker HI772 Specifications

General

Brand	Hanna Instruments
Model	Checker HI772
Category	Measuring Instruments
Language	English