INSTRUCTION MANUAL
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 05/18-1
To obtain the highest accuracy for measurements it is important to follow these tips:
• Fresh buffer should be used for each calibration. Calibration is only as good as the
buffer being used. The pH buffer values change over time once the sachets are opened.
• The probe should be rinsed with purified water each time before placing in buffer or
sample to be tested.
• When the meter is not in use it is important to add several drops of storage solution to
the protective cap to keep the probe hydrated. If storage solution is not available, pH
4.01 or pH 7.01 buffer can be used.
• For improved accuracy it is recommended to calibrate in two buffers.
• It is important to calibrate and measure samples at the same temperature as there
is no temperature compensation. A dramatic change in temperature between buffer
solutions and samples to be tested will give inaccurate readings.
Refilling the Electrode
• If fouled, remove the sleeve and rinse sleeve and sensor tip with purified water.
Turn over the probe, remove the sleeve by carefully rotating it and pull straight
along the axis of the electrode. Use
care as the pH stem is made of glass.
Rinse off any traces of electrolyte gel.
• Soak the sensor tip in HI70061G,
HI700661P, HI700663P or HI700664P
cleaning solution for 20 minutes then
rinse with purified water.
• Refill the reference well with HI9071
Gelled Bridge Electrolyte.
• Replace the reference sleeve: insert and
push the sleeve onto the electrode. Make
sure the black O-ring is fixed inside the
electrode body. Any excess of gel will be
expelled from the end of the electrode through the open junction.
• Rinse any excess gel off with purified water and gently dry off
body with a soft cloth or tissue.
• Soak assembled probe in Electrode storage solution for a
minimum of 30 minutes.
• Rinse probe with purified water.
• Shake the electrode down as you would do with a clinical
thermometer to eliminate any air bubbles inside the glass bulb.
• Calibrate in fresh buffers before using for measurements.
Care and Maintenance
To change the CR2032 Li-ion battery, turn the battery cover located on the back of the meter
counterclockwise to unlock. Remove cover and replace the battery with + side facing up.
Note: Batteries should only be replaced in a safe area using the battery
type specified in this instruction manual. Old batteries should be disposed in
accordance with local regulations.
Battery Indicator
The meter features a low battery indicator. When
the battery is running low, the tag will blink on
screen. When the battery has been depleted,
“Erb” will appear on screen and the meter will
turn off.
Clear Calibration
Place meter in calibration mode. Press and hold
ON/OFF until “CLr” is displayed. The meter will
now be at default calibration.
“Err” Message
In calibration mode, if the meter displays an
“Err” message when in the correct fresh buffer
solution then the probe should be cleaned.
Place the probe in the
cleaning solution for
20 minutes. Rinse with purified water and place
in storage solution for a minimum of 30 minutes
before calibrating.
Battery Replacement
Auto-off
From measurement mode, press and hold the
ON/OFF button. The meter will cycle through
“OFF,” “CAL,” then current auto-off setting.
The default setting is 8 minutes (“d08”). Press
ON/OFF button to change. “d60” is auto-off after
60 minutes, and “d--” disables the auto-off
feature. Press and hold the button to exit the
menu.
Electrode Cleaning Solutions
Code
Description
HI70061G
GroLine general purpose cleaning solution, 20 mL sachets (25 pcs.)
HI700661P
General purpose cleaning solution for agriculture, 20 mL sachets (25 pcs.)
HI700663P
Cleaning solution for soil deposits, 20 mL sachets (25 pcs.)
HI700664P
Cleaning solution for humus deposits, 20 mL sachets (25 pcs.)
pH Buffer Solution
Code
Description
HI70004G
GroLine pH 4.01 buffer solution, 20 mL sachets (25 pcs.)
HI70007G
GroLine pH 7.01 buffer solution, 20 mL sachets (25 pcs.)
HI77400P
pH 4.01 & 7.01 buffer solution, 20 mL sachets (10 pcs., 5 ea.)
Accessories
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 meters’ performance. For yours and the meter’s safety do not use or store the meter in
hazardous environments.
Warranty
The meter is warranted for a period of one year against defects in workmanship and materials when
used for their 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.
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
.
RoHS
compliant
HI981030
Soil pH Tester
Other Accessories
Code
Description
HI721319
Soil auger
HI7051M
Soil preparation solution, 230 mL bottle
Electrode Storage Solutions
Code
Description
HI70300G
GroLine electrode storage solution, 20 mL sachets (25 pcs.)
HI70300-023
GroLine electrode storage solution, 230 mL bottle
HI9072
Electrode storage solution, 13 mL dropper
Electrode Fill Solution
Code
Description
HI9071
Gelled Bridge Electrolyte
