HANNA HI780 Marine pH Colorimeter Instruction Manual
- June 4, 2024
- HANNA
Table of Contents
HANNA HI780 Marine pH Colorimeter
Recommendations for Users
Before using this product, make sure it is entirely suitable for your specific
application and for the environment in which it is used. Any variation
introduced by the user to the supplied equipment may degrade the checker’s
performance. For your and the checker’s safety do not use or store it in
hazardous environments.
Warranty
HI780 Checker HC is warranted for a period of one year against defects in
workmanship and materials when used for its intended purpose and maintained
according to instructions. This warranty is limited to repair or replacement
free of charge. Damage due to accidents, misuse, tampering or lack of
prescribed maintenance is not covered. If service is required, contact your
local Hanna Instruments® office. If under warranty, report the model number,
date of purchase, serial number and the nature of the problem. If the repair
is not covered by the warranty, you will be notified of the charges incurred.
If the checker is to be returned to Hanna Instruments, first obtain a Returned
Goods Authorization (RGA) number from the Technical Service department and
then send it with shipping costs prepaid. When shipping any product, make sure
it is properly packaged for complete protection.
Hanna Instruments reserves the right to modify the design, construction, or
appearance of its products without advance notice.
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.
Accessories
Certification
All Hanna® instruments conform to the CE European Directives. Disposal of
Electrical & Electronic Equipment. The product should not be treated as
household waste. Instead, hand it over to the appropriate collection point for
the recycling of electrical and electronic equipment, which will conserve
natural resources.
Disposal of waste batteries. This product contains batteries, do not dispose
of them with other household waste. Hand them over to the appropriate
collection point for recycling.
Ensuring proper product and battery disposal prevents potential negative
consequences for the environment and human health. For more information,
contact your city, your local household waste disposal service, or the place
of purchase.
Tips for an Accurate Measurement
- Ensure the sample does not contain any debris.
- Whenever the cuvette is placed into the checker, it must be dry outside and free of fingerprints, oil and dirt.
- Wipe the cuvette thoroughly with HI731318 microfiber cleaning cloth or a lint-free cloth prior to insertion.
- Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette.
- Do not let the reacted sample stand too long after reagent has been added, as accuracy will be affected.
- Discard the sample immediately after the reading has been taken or the glass might become permanently stained.
Battery Replacement
To save the battery, the checker shuts down after 10 minutes of non-use.
A fresh battery lasts for a minimum of 5000 measurements. When the battery is
drained, the instrument displays “bAd” then ”bAt”, and turns off.
To replace the battery, follow the next steps:
- Press and hold the ON/OFF button to turn the checker off.
- Turn the instrument upside down and use a screwdriver to unfasten the screw and remove the battery cover.
- Remove the old battery, replace it with a new 1.5V AAA battery, inserting the negative end first.
- Replace the battery cover, fasten and tighten the screw.
Dear Customer,
Thank you for choosing a Hanna Instruments® product. Please read this
instruction manual carefully before using the Checker®HC handheld colorimeter.
For more information about Hanna Instruments and our products, visit
www.hannainst.com or e-mail us at
sales@hannainst.com. For technical support, contact
your local Hanna Instruments office or e-mail us at
tech@hannainst.com.
Preliminary Examination
Remove the Checker HC handheld colorimeter and accessories from the packing
material and examine it carefully. If you require any further information,
please contact Hanna Instruments technical support team.
Each HI780 is delivered in a case with custom insert and is supplied with:
- Sample cuvette and cap (2 pcs.)
- Marine pH reagent starter kit
- 1.5V AAA Alkaline battery (1 pc.)
- Instruction manual
Note: Save all packing material until you are sure that the Checker HC handheld colorimeter works correctly. Any damaged or defective item must be returned in its original packing material with the supplied accessories.
General Description & Intended Use
- HI780 Marine pH handheld checker is designed to accurately determine pH levels in saltwater aquariums and marine biology applications.
- HI780 features a single-button operation system and is easy to use.
- The large LCD is easy to read and the auto shut-off feature assures the battery will not be drained.
Specifications
Functional Description & LCD Display
Measurement Procedure
- Press the ON/OFF button to turn the checker on. All segments will be displayed for a few seconds, followed by “Add”, “C.1” with “Press” blinking.
- Fill the cuvette with 10 mL of unreacted sample and replace the cap. Insert the cuvette into the checker and close the cap.
- Press the ON/OFF button. When the display shows “Add”, “C.2” with “Press” blinking, the checker is zeroed.
- Remove the cuvette. Unscrew the cap and add 5 drops of HI780-0 pH reagent indicator. Replace the cap and invert 5 times to mix.
- Insert the cuvette into the checker and close the cap. Press the ON/OFF button. The instrument displays the result in pH. The checker automatically turns off 10 minutes after reading.
Errors & Warnings
The checker shows clear warning messages when erroneous conditions appear and when measured values are outside the expected range. The information below provides an explanation of the errors and warnings, and the recommended action to be taken.
- Light High: There is an excess amount of ambient light reaching the detector. 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 cuvettes are inverted. Swap the cuvettes and repeat the measurement.
- Under Range: A blinking “6.3” indicates that the sample absorbs less light than the lower range limit. Check the measurement procedure and make sure to use the same cuvette for reference (zero) and measurement.
- Over Range: Maximum concentration value displayed blinking indicates the measured value is outside the limits of the method. Verify that the sample does not contain any debris. Dilute the sample and repeat the measurement.
- Battery Low: Battery level is too low for the checker to function properly. Replace the battery with a new one.
- Drained Battery: The battery is drained and must be replaced. Replace the battery with a new one and restart the checker.
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>