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Hanna Instruments reserves the right to modify the design, con-
struction and appearance of its products without advance notice.
WARRANTY
HI 98120 is warranted for one year against defects
in workmanship and materials when used for its
intended purpose and maintained according to in-
structions. The electrode is warranted for a period
of six months. This warranty is limited to repair or
replacement free of charge.
Damages due to accidents, misuse, tampering or lack
of prescribed maintenance are not covered.
If service is required, contact the dealer from whom
you purchased the instrument. If under warranty,
report the model number, date of purchase, serial
number and the nature of the failure. If the repair is
not covered by the warranty, you will be notified of
the charges incurred. If the instrument is to be re-
turned to Hanna Instruments, first obtain a Returned
Goods Authorization Number from the Customer
Service department and then send it with shipment
costs prepaid. When shipping any instrument, make
sure it is properly packaged for complete protection.
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.
Instruction Manual
HI 98120
Waterproof
ORP & Temperature Meter
Remove the instrument from the packing material
and examine it carefully. If any damage has
occurred during shipment, immediately notify your
Dealer or the nearest Hanna Customer Service
Center.
Each meter is supplied with:
• HI 73120 ORP electrode
• HI 73128 Electrode removal tool
• 4 x 1.5V batteries
Note: Conserve all packing material until the in-
strument has been observed to function
correctly. Any defective item must be re-
turned in its original packing.
PRELIMINARY EXAMINATION
HI 98120 is a waterproof ORP and temperature
meter. The housing has been completely sealed
against humidity and designed to float.
The temperature values can be displayed in °C or
°F units.
The meter is factory calibrated and measurements
are highly accurate with a unique stability indicator
right on the LCD.
This meter is also provided with battery level
indication at start-up, and with a low battery sym-
bol which warns the user when the batteries need
to be replaced. In addition the Battery Error Preven-
tion System (BEPS) avoids erroneous reading caused
by low voltage level by turning the meter off.
The HI 73120 ORP electrode, supplied with the
meter, is interchangeable and can be easily re-
placed by the user.
The stainless steel encapsulated temperature sen-
sor facilitates faster and more accurate temperature
measurement.
GENERAL DESCRIPTION
FUNCTIONAL DESCRIPTION
1. Battery compartment
2. Liquid Crystal Display (LCD)
3. ON/OFF/MODE button
4. HI 73120 ORP electrode
5. Temperature sensor
6. SET/HOLD button
This Instrument is
in Compliance with
CE Directives
CE DECLARATION OF CONFORMITY
Recommendations for Users
Before using this product, make sure that it is
entirely suitable for the environment in which it is
used.
Avoid touching the electrode at all times.
Any variation introduced by the user to the supplied
equipment may degrade the instrument’s EMC per-
formance.
To avoid electrical shock, do not use this instrument
when voltages at the measurement surface exceed
24 VAC or 60 VDC. To avoid damages or burns, do
not perform any measurement in microwave ovens.
ISTR98120 03/03
1. Stability indicator
2. Battery life percentage indicator
3. Low battery indicator
4. Secondary display
5. Primary display
6. Measuring unit for primary display
US DESIGN PATENT
D462,024
Dear Customer,
Thank you for choosing a Hanna product. This
manual will provide you with the necessary informa-
tion for correct operation. Please read it carefully
before using the meter.
If you need additional technical information, do not
hesitate to e-mail us at tech@hannainst.com.
This instrument is in compliance with the direc-
tives.