Dear Customer,
Thank you for choosing a Hanna Instruments product. Please read this
instruction manual carefully before using the tester.
For more information about Hanna Instruments and our products, visit
www.hannainst.com or e-mail us at [email protected].
For technical support, contact your local Hanna Instruments Office or
e-mail us at [email protected].
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
HI981035
is delivered in a cardboard box and is supplied with:
•
HI70004
pH 4.01 buffer solution, 20 mL sachet (2 pcs.)
•
HI70007
pH 7.01 buffer solution, 20 mL sachet (2 pcs.)
•
HI700683
Cleaning solution for sushi, 20 mL sachet (2 pcs.)
•
HI9072
Electrode storage solution, 13 mL dropper
• CR2032 3V Lithium-ion battery
• 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
The
HI981035
Sushi pH Tester is designed to measure the pH of sushi rice
and ensure it meets the food-hygiene and Hazard Analysis Critical Control Point
(HACCP) regulations. It features a single button operation system and is easy to
use. It has a compact and waterproof casing and automatic pH calibration at
one or two points. All readings are automatically compensated for temperature
variations with a built-in temperature sensor. The flat tip of the pH electrode
provides optimal contact between the rice and the sensor. The pH electrode has an
open junction design and utilizes a non-flowing gelled reference electrolyte. The
flat tip allows the pH electrode to equilibrate quickly and reproducibly.
Probe Features
Flat Glass Tip
The flat tip provides optimal
surface contact for sushi rice pH
measurements and for surfaces that
cannot be penetrated.
pH sensitive
glass
Open junction
Open Junction Reference
The open junction design uses a solid gel interface between the sushi rice
sample and internal Ag/AgCl reference. This interface prevents silver from
exiting the junction and makes it impermeable to clogging, resulting in a fast
response and stable reading. This design allows for smaller sample sizes as
there is no junction to submerge.
Titanium Body
Rugged and resilient, the titanium body of the probe works as an electronic shield
protecting against interferences from electrical noise or humidity. The titanium
body is virtually unbreakable, offering protection from accidental breakage.
Specifications
Range
0.00 to 12.00 pH
Resolution
0.01 pH
Accuracy
±0.05 pH
Calibration
Automatic, one or two-point
Temperature compensation
Automatic, 0 to 50 °C
Electrode
Built-in probe for specific application
Battery type
CR2032 Lithium ion (included)
Battery life
Approximately 800 hours of continuous use
Auto-off
8 minutes, 60 minutes or disabled
Environment
0 to 50 °C (32 to 122 °F); RH 95% max
Dimensions
51 x 160 x 21 mm (2.0 x 6.3 x 0.9“)
Weight
57 g (2.0 oz.)
Functional Description & LCD Display
Calibration tags
Liquid Crystal Display (LCD)
ON/OFF button
Maximum immersion level
pH sensitive glass
pH probe
Preparation
• Remove the protective cap. Do not be alarmed if salt deposits are present.
Rinse the probe with water and blot dry.
• If the glass and / or junction are dry, soak the electrode in storage solution for
a minimum of 30 minutes. Rinse with water and blot dry.
• Calibrate the electrode before using. For best results it is recommended to
recalibrate periodically.
Storage
• To ensure a quick response, the glass tip and the junction should be kept moist.
• Replace protective cap with a few drops of storage solution when not in use.
Do not store the electrode in distilled or deionized water.
Operation
Press the ON/OFF button to turn the
tester on. The tester displays all LCD
segments for a few seconds.
The tester will enter measurement
mode, the current reading and
calibrated buffers will be shown.
Calibration
tags
Low battery
indicator
Stability
indicator
Measurement unit
A
One or Two-Point Calibration with pH 7.01
When "7.01" is displayed,
place the tip of the electrode
in pH 7.01 buffer.
When the reading is stable, the
stability icon will disappear.
When "4.01" is displayed, follow
the procedure to the right for a
one or two-point calibration.
One
-P
oint
Press the ON/OFF
button to save
the one-point
calibration.
"Sto" will be
displayed when
the calibration is
saved.
The tester
will return to
measurement
mode and the
calibration
tag will be
displayed.
Two
-P
oint
Place the tip of the
electrode in
pH 4.01 buffer.
The buffer is
automatically
recognized, the
stability indicator
will blink.
Wait until the
measurement is
stable and the
stability indicator
dissapears. “Sto”
will be displayed
when the calibration
is saved.
The tester
will return to
measurement
mode and the
calibration
tags will be
displayed.
One-Point Calibration with pH 4.01
B
When "7.01" is
displayed, place the
tip of the electrode
in pH 4.01 buffer.
The buffer value
will be recognized
automatically and
"4.01" will be
displayed.
When the reading
is stable, the
stability indicator
will disappear.
“Sto” will be
displayed when
the calibration is
saved.
Tester will
return to
measurement
mode and the
calibration
tag will be
displayed.
Calibration
From measurement mode, press and hold the ON/OFF button until “CAL” is
displayed.
For one or two-point calibration using pH 7.01 buffer solution, follow
procedure A.
For one-point calibration using pH 4.01 buffer solution, follow
procedure B.
Note:
It is recommended to calibrate the electrode with buffers at the
temperature it will be used at.
A
B
