HI98103
pH Tester
INSTRUCTION MANUAL
Preliminary Examination
Specifications
Range
0.0 to 14.0 pH
Resolution
0.1 pH
Accuracy
(@25 °C/77 °F)
±0.2 pH
Calibration
automatic, one or two-point
Electrode
HI1271
(included)
Battery Type
CR2032 Li-ion
Battery Life
approximately 1000 hours of continuous use
Auto-off
8 minutes, 60 minutes or can be disabled
Environment
0 to 50 °C (32 to 122 °F); RH 95% max
Dimensions
50 x 174 x 21 mm (2 x 6.8 x 0.9“)
Weight
50 g (1.8 oz.)
Liquid Crystal
Display
ON/OFF
Button
pH Probe
Maximum
Immersion
Level
Recommended
Immersion
Level 4 cm (1.5”)
Operation
Press the ON/OFF button to turn the
meter on. All tags will be displayed.
The meter will go into measurement
mode: current reading and
calibrated buffers are displayed.
Thank You
Thank you for choosing a Hanna Instruments product. Please read
this instruction manual carefully before using the instrument.
For more information about Hanna Instruments and our products, visit
www.hannainst.com.
For technical support, contact your local Hanna Instruments Office
or email us at [email protected]
Find your local Hanna Instruments Office on www.hannainst.com
Remove the meter from the packing material and examine it carefully to
make sure that no damage has occurred during shipment. If noticeable
damage is evident, contact your local Hanna Instruments Office.
Each meter is supplied with:
• pH 4.01 Buffer Solution Liquid Sachet (2 pcs.)
• pH 7.01 Buffer Solution Liquid Sachet (2 pcs.)
• General purpose cleaning solution (2 pcs.)
• Instruction manual
• Quality Certificate
Note: Save all packing material until you are sure that the instrument
functions correctly. All defective items must be returned in the original
packaging with the supplied accessories.
Preparation:
The pH electrode is shipped dry. Before using the Checker
®
, remove the protective
cap and condition the electrode by soaking the tip (bottom 4 cm (1.5”)) in
pH 7.01 buffer solution for several hours. Then follow the calibration procedure.
• Do not be alarmed if white crystals appear around the cap. This is
normal with pH electrodes and they dissolve when rinsed with water.
• Connect the electrode to the meter.
• Turn the Checker
®
on by pressing ON/OFF button.
• Remove the protective cap and immerse the tip of the electrode in the
sample to be tested.
• Stir gently and wait for a stable reading.
NEVER IMMERSE THE ELECTRODE OVER THE MAXIMUM IMMERSION LEVEL.
THE CONNECTOR MUST ALWAYS BE CLEAN AND DRY.
• After use, rinse the electrode with water and store it with a few drops of
HI70300 storage solution in the protective cap.
• Replace protective cap after each use.
DO NOT USE DISTILLED OR DEIONIZED WATER FOR STORAGE PURPOSES.
Meter Overview
The Checker
®
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.
Place meter in calibration mode.
Press and hold ON/OFF until “CLr”
is displayed. The meter will now be
at default calibration. No tags will
be shown in measurement mode
until calibration is performed.
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
HI700601
cleaning solution for
15 minutes. Rinse with purified
water and place in storage solution
for 1 hour before calibrating. If the
“Err” message persists then the
HI1271
probe should be replaced.
Clear Calibration
“Err” Message
Battery Indicator
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.
Auto-off
