Battery Replacement
Battery life percentage indicator is displayed at power on. If the
battery level drops below 5%, the symbol lights up indicating
that the batteries should be replaced soon.
If the battery level is not adequate to guarantee an accurate reading,
the tester automatically turns off.
To replace the batteries, follow the next steps:
1. Turn OFF the tester.
2. Remove the four screws on the top of the tester to open the battery
compartment (figure 1).
3. Remove the old batteries.
4. Insert four new 1.5V AA batteries in the battery compartment
while paying attention to the correct polarity (figure 2).
5. Close the battery compartment using the four screws.
fig. 1
fig. 2
Note:
Only use the battery type specified in the manual. Old
batteries should be disposed in accordance with local regulations.
Accessories
Electrode
HI73127
Replaceable pH electrode
HI73128
Electrode removal tool
pH Buffer Solution
HI70004P
pH 4.01 buffer solution, 20 mL sachet (25 pcs.)
HI70006P
pH 6.86 buffer solution, 20 mL sachet (25 pcs.)
HI70007P
pH 7.01 buffer solution, 20 mL sachet (25 pcs.)
HI70009P
pH 9.18 buffer solution, 20 mL sachet (25 pcs.)
HI70010P
pH 10.01 buffer solution, 20 mL sachet (25 pcs.)
HI77400P
pH 4.01 & 7.01 buffer solution, 20 mL sachet
(10 pcs., 5 each)
HI770710P
pH 10.01 & 7.01 buffer solution, 20 mL sachet
(10 pcs., 5 each)
ORP Test Solution
HI7021M
ORP test solution (240 mV), 230 mL
HI7022M
ORP test solution (470 mV), 230 mL
Pretreatment Solution
HI7091L
Pretreatment reducing solution
HI7092M
Pretreatment oxidizing solution, 230 mL
Electrode Cleaning Solution
HI7061M
General purpose cleaning solution, 230 mL
Electrode Storage Solution
HI70300M
Electrode storage solution, 230 mL
Other Accessories
HI740026P
Replacement 1.5 V Batteries (12 pcs.)
pH Measurement
Press SET/HOLD to select pH mode. Place
the electrode in the solution to be tested
while stirring gently. The measurement
should be taken after the stability tag
has disappeared. The pH value is displayed on the first LCD line and
the temperature on the second LCD line.
Note:
Before taking any pH measurement make sure the tester
has been calibrated (“CAL“ tag is displayed).
ORP Measurement
Use SET/HOLD to select ORP mode. Place
the electrode in the solution to be tested.
The measurement should be taken after the
stability tag has disappeared.
The ORP (mV) value is displayed on the first LCD line and the
temperature on the second LCD line.
Maintenance
Please read the information below to ensure the highest possible
accuracy.
• Fresh buffer solution should be used for each calibration.
• For improved accuracy a two-point calibration is recommended.
• If measurements are taken successively, rinse the probe thoroughly
in distilled or deionized water to eliminate cross-contamination.
• Clean the electrode monthly using pH and ORP cleaning solution.
Keep the electrode in
HI700601
- pH and ORP electrode cleaning
Solution for 30 minutes and rinse the probe thoroughly with water.
• When not in use, add a few drops of
HI70300
Storage solution to
the protective cap. Never store the probe in distilled or deionized
water.
Electrode Replacement
Use supplied removal tool (
HI73128
) to replace the pH electrode.
Insert the tool into the
probe cavity.
Rotate the tool
counterclockwise.
Pull the electrode out by
using the other side of
the tool.
Insert a new pH electrode following the above instructions in reverse
order.
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.
Recommendations for Users
Before using this tester, make sure that it is entirely suitable for
your specific application and for the environment in which it is used.
The glass bulb at the end of the electrode is sensitive to electrostatic
discharges. Avoid touching the glass bulb and the ORP electrode at all
times. 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.
Warranty
HI98121
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. The electrode is warranted for a
period of six months. 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 Office,
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.
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.
IST98121 09/19
HI98121
Waterproof pH, ORP
& Temperature Tester
INSTRUCTION MANUAL
