Auto-Off
From measurement mode, press and hold the ON/OFF button.
The LCD will show "OFF", "CAL" followed by "d08" (default
setting, 8 minutes). Release the ON/OFF button. A single press
on the ON/OFF button will change the auto-off timer to "d60"
(60 minutes). To disable the auto-off feature press the ON/
OFF button again, LCD will show "d--". Press and hold to exit.
Clear Calibration
To clear the user calibration and restore the tester to factory
default. From calibration mode, press and hold the ON/OFF
button, the LCD will show "CLr".
“Err” Message
In calibration mode, if the probe is in the correct buffer
solution and the "Err" message is displayed, the probe
should be cleaned. Soak the probe in cleaning solution for 20
minutes. Rinse with water and hydrate electrode in storage
solution for a minimum of 30 minutes before calibrating.
Battery Indicator
When the battery level is low, the tag on the LCD will blink.
When the battery is depleted the "Erb" message is displayed
and the tester is powered off.
Care & Maintenance
General Information
Please read the information below, to ensure the highest possible accuracy:
• Fresh buffer should be used for each calibration, once the sachets are opened the
buffer value can change over time.
• For improved accuracy a two-point calibration is recommended.
• If the electrode is slow or sluggish, soak it in cleaning solution for 20 minutes.
Rinse with water and hydrate the electrode in storage solution for a minimum of
30 minutes before calibrating.
• If measurements are taken successively, rinse the probe thoroughly in distilled or
deionized water to eliminate cross-contamination.
• When not in use, add a few drops of storage solution to the protective cap to keep
the glass tip and the junction hydrated. If storage solution is not available, pH 4.01
or pH 7.01 buffer can be used. Never store the probe in distilled or deionized water.
• The outer junction sleeve can be removed and cleaned with purified water. Once
cleaned a small amount of supplied gel electrolyte should be added to refresh the
junction and improve the pH measurement.
Note: Never immerse the tester over the maximum immersion level.
Refilling the Electrode
• To remove the electrode sleeve, rotate it carefully and slide it off the probe body, keeping
it parallel to the pH electrode.
Note: Handle the probe with care, the
pH electrode stem is made of glass.
• Rinse off any traces of electrolyte gel
from the sleeve. Soak the tip of the pH
electrode in HI70061 General purpose
cleaning solution (or HI700661,
HI700663, HI700664) for 20 minutes.
Rinse with distilled or deionized water.
• Refill the reference well with HI9071
Gelled bridge electrolyte.
• Replace the sleeve making sure that the black O ring is fixed
inside the electrode.
• Rinse off excess gel with distilled or deionized water.
• Shake the probe down as you would do with a clinical
thermometer to eliminate any trapped air bubbles.
• Soak the probe in HI70300 Electrode storage solution for a
minimum of 30 minutes before calibrating.
Accessories
pH Buffer Solution
HI70004G GroLine pH 4.01 buffer solution, 20 mL sachet (25 pcs.)
HI70007G GroLine pH 7.01 buffer solution, 20 mL sachet (25 pcs.)
HI77400P pH 4.01 & 7.01 buffer solution, 20 mL sachet (10 pcs., 5 each)
Electrode Cleaning Solution
HI70061G GroLine general purpose cleaning solution, 20 mL sachet (25 pcs.)
HI700661P General purpose cleaning solution for agriculture, 20 mL sachet (25 pcs.)
HI700663P Cleaning solution for soil deposits, 20 mL sachet (25 pcs.)
HI700664P Cleaning solution for humus deposits, 20 mL sachet (25 pcs.)
Electrode Storage Solution
HI70300G GroLine electrode storage solution, 20 mL sachet (25 pcs.)
HI70300-023 GroLine electrode storage solution, 230 mL
HI9072 Electrode storage solution, 13 mL dropper
Electrode Fill Solution
HI9071 Gelled bridge electrolyte
Other Accessories
HI721319 Soil auger
HI7051M Soil preparation solution, 230 mL
Battery Replacement
To change the CR2032 lithium-ion battery, turn
the battery cover located on the back of the tester
counterclockwise to unlock. Remove cover and replace
the battery with positive (+) side facing out.
Note: Only use the battery type specified in the
manual. Old batteries should be disposed in
accordance with local regulations.
Warranty
HI981030 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 instrument 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
instrument, make sure it is properly packaged for complete protection.
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 tester’s performance. For yours and the
tester’s safety do not use or store the tester in hazardous environments.
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, the place of purchase or go
to www.hannainst.com.
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.
IST981030 10/19
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