Preliminary Examination
Remove the tester and accessories from the packing material and
examine it carefully. If you require any further information, please contact
Hanna Instruments technical support team at [email protected].
Each
HI98120
is delivered in a cardboard box and is supplied with:
•
HI70022
ORP test solution, 470 mV, 20 mL sachet (6 pcs.)
•
HI73120
ORP electrode
•
HI73128
Electrode removal tool
• 1.5V batteries (4 pcs.)
• Instrument quality certificate
• Instruction manual
Note:
Save all packing material until you are sure that the tester
works correctly. Any damaged or defective item must be returned
in its original packing material with the supplied accessories.
General Description & Intended Use
HI98120
is a compact ORP and temperature tester. It features a
two-buttons operation system and is easy to use. The compact and
waterproof casing is designed to float if accidentally dropped in the
water. The tester is factory calibrated and measures temperature in
both °C and °F. It displays a stability tag that will disappear once the
reading has stabilized.
Battery level and low-battery indicator are clearly displayed on
the LCD to alert the user in the event that low battery power could
adversely affect the readings.
BEPS (Battery Error Prevention System)
The tester will automatically shut off if there is not enough power to
get an accurate reading.
ORP Probe
HI98120
is supplied together with
HI73120
ORP replaceable
electrode.
Temperature Sensor
The stainless steel temperature sensor facilitates faster and more
accurate temperature measurement.
Specifications
Range
±1000 mV
-5.0 to 60 °C / 23.0 to 140.0 °F
Resolution
1 mV
0.1 °C / 0.1 °F
Accuracy
(@25 °C/77 °F)
±2 mV
±0.5 °C / ±1.0 °F
Calibration
Factory calibrated
Electrode
HI73120
ORP electrode (included)
Battery type
1.5 V (4 pcs.)
Battery life
Approx. 300 hours of use
Auto-off
After 8 minutes
Environment
-5 to 50 °C (23 to 122 °F); RH 100%
Dimensions
171 x 41 x 26 mm (6.7 x 1.6 x 1.0“)
Weight
83 g (2.9 oz.)
Functional Description
Liquid Crystal
Display
SET/HOLD
button
Battery
compartment
/MODE
button
Temperature
sensor
HI73120
ORP electrode
LCD Display
1. Stability tag
2. Battery life percentage indicator
3. Low battery indicator
4. Measurement unit
5. First LCD line
6. Second LCD line
Operational Guide
Turning the Tester ON / OFF
Press and hold /MODE. Al LCD segments will be displayed for a
few second followed by battery life percentage indicator (e.g. % 100
BATT).
To turn the tester OFF, from measurement mode, press MODE. “OFF”
will be displayed on the second LCD line and the tester will turn off.
HOLD Mode
From measurement mode, press and hold SET/HOLD until HOLD is
displayed. mV reading will be frozen on the LCD. Press either buttons
to resume measurement mode.
Setup
Setup mode allows the selection of temperature unit.
To enter the Setup mode, press /MODE until “TEMP“ and the
current temperature unit are displayed on the second LCD line (e.g.
“TEMP °C”).
Use SET/HOLD to change the temperature unit, and press /MODE to
return to measurement mode.
Measurement
Place the electrode in the solution to be tested while stirring it gently.
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.
Note:
If measurements are taken successively, rinse the probe
thoroughly in distilled or deionized water to eliminate cross-
contamination. After cleaning, rinse the probe with some of the
sample to be measured.
Maintenance
Please read the information below to ensure the highest possible
accuracy.
• If measurements are taken successively, rinse the probe
thoroughly in distilled or deionized water to eliminate cross-
contamination.
• Clean the electrode monthly using by keeping the electrode in
HI7061
General purpose cleaning solution for 30 minutes and
rinsing 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.
