Hanna Instruments HI 9026V User Manual
Instruction Manual
HI 9026V
Complete Portable Kit
for pH, mV & Temperature
Measurements in
Wine and Must
with Calibration-Check
TM
www.hannainst.com
1
Dear Customer,
Thank you for choosing a Hanna product.
Please read this instruction manual carefully before using the instrument.
This manual will provide you with the necessary information for correct use of the
instrument, as well as a more precise idea of its versatility.
If you need additional technical information, do not hesitate to e-mail us at
tech@hannainst.com or contact the nearest technical office.
This instrument is in compliance with the directives.
WARRANTY
All Hanna Instruments meters are warranted for two years against defects in workmanship
and materials when used for their intended purpose and maintained according to instructions.
Electrodes and probes are warranted for 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.
First obtain a Returned Goods Authorization number from the Customer Service department, then
return the instrument with the Authorization # included along with shipment costs prepaid. If the
repair is not covered by the warranty, you will be notified of the charges. When shipping any
instrument, make sure it is properly packaged for complete protection.
PRELIMINARY EXAMINATION
Remove the kit from the packing material and examine it to make sure that no
damage has occurred during shipping. If there is any damage, notify your
dealer or the nearest Hanna Customer Service Center.
The kit includes:
• HI 9026 waterproof pH meter with Cal-Check
• HI 1048B double junction, refillable pH electrode
• HI 7662 stainless steel temperature probe
• pH 3.00 and pH 7.01 buffer solutions, 20 mL each
• HI 700635 and HI 700636 specific cleaning solutions, 20 mL each
• HI 7082 electrode refilling solution (30 mL) and syringe
• 100 mL plastic beaker
• 1.5V AA alkaline batteries (4 pcs)
• instruction manual
• rugged carrying case.
Note: Save all packing material until you are sure that the instrument
functions correctly. All defective items must be returned in the original
packing with the supplied accessories.
TM
TABLE OF CONTENTS
PRELIMINARY EXAMINATION ..................................................................... 3
GENERAL DESCRIPTION ............................................................................. 3
FUNCTIONAL DESCRIPTION .......................................................................4
SPECIFICATIONS........................................................................................ 5
OPERATIONAL GUIDE ................................................................................ 6
SETUP MENU ........................................................................................... 9
CALIBRATION ..........................................................................................10
pH BUFFER TEMPERATURE DEPENDENCE................................................... 14
LCD MESSAGE GUIDE............................................................................... 15
TROUBLESHOOTING GUIDE ..................................................................... 16
BATTERY REPLACEMENT ........................................................................... 16
pH ELECTRODE MAINTENANCE ................................................................. 17
ACCESSORIES .......................................................................................... 19
23
GENERAL DESCRIPTION
HI 9026 is an advanced pH/ORP meter specifically designed to provide affordable
and very precise results under harsh industrial conditions. The meter also features
a backlit display for clear readings in the darkest environments.
You can choose from 7 memorized buffer values (pH 1.68, 4.01, 6.86, 7.01,
9.18, 10.01 and 12.45) for pH calibration. In addition, the user can program
2 custom buffer values, in order to best fit the characteristics of the sample.
For example, if you are going to measure wine and must, you can enter the pH
3.00 buffer value for calibration.
When calibration is complete, the electrode condition is displayed, so the user
can be sure the electrode is working properly or that it needs to be cleaned or
replaced.
The supplied HI 1048B electrode features the innovative CPS
Prevention System), ideal for pH measurements in wine and must.
With proper electrodes, HI 9026 can also measure ORP with a resolution up to
0.1 mV.
TM
(Clogging
FUNCTIONAL DESCRIPTION
1) BNC plug for pH and ORP electrodes
2) Temperature probe socket
3) Liquid Crystal Display
4) RANGE key, to select pH or mV
5) ON/OFF key, to turn the meter ON and OFF
6) CAL key, to enter/exit calibration mode
7) SETUP/CFM key, to enter setup mode or to confirm calibration
8) UP and DOWN arrow keys, for manual temperature setting, entering
menu parameters or changing buffer values
9) MR/CUSTOM BUF key, to recall stored value from memory or to enter
custom buffer values
10) MEM/CLR key, to store the reading in memory or clear calibration
11) LIGHT key, to toggle display backlighting
SPECIFICATIONS
Range -2.00 to 16.00 pH
±699.9 mV / ±1999 mV
-20.0 to 120.0 °C / -4.0 to 248.0 °F
Resolution 0.01 pH / 0.1 mV / 1 mV / 0.1 °C / 0.1 °F
Accuracy ±0.01 pH / ±0.2 mV / ±1 mV
±0.4 °C / ±0.8 °F (excluding probe error)
Typical EMC Deviation ±0.02 pH
±0.2 mV / ±1 mV
±0.4 °C / ±0.8 °F
Temperature Compensation Automatic or Manual
pH Calibration
Automatic, 1 or 2 point with 7 memorized buffer values
(pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45) + 2 custom buffers
Offset Calibration ±1 pH
Slope Calibration 80 to 108 %
Temperature Compensation
Automatic, -20 to 120°C (-4 to 248°F),
or manual without temperature probe
pH Electrode HI 1048B (included)
Temperature Probe HI 7662 (included)
Input Impedance 1012 Ohm
Battery Type 4 x 1.5V AA, alkaline
Battery Life Approx. 500 hours of continuous use (BL off)
Auto-off User selectable: 20 minutes or disabled
Environment 0 to 50°C (32 to 122°F); RH max 100%
Dimensions (meter only) 196 x 80 x 60 mm (7.7 x 3.1 x 2.4")
Weight (meter only) 500 g (1.1 lb.)
45
OPERATIONAL GUIDE
INITIAL PREPARATION
The meter is supplied complete with batteries. Remove the back cover, unwrap
the batteries and install them while paying attention to their polarity.
To prepare the instrument for use, connect the pH electrode and the temperature probe to the BNC and temperature sockets on the top of the instrument.
The temperature probe is used in conjunction with the pH electrode to utilize
the meter's ATC capability, but it can also be used independently to take
temperature measurements. If the probe is disconnected, temperature can also
be set manually with the UP and DOWN arrow keys (see further on for details).
Turn the instrument ON by pressing ON/OFF.
At start-up the display will show all the used segments for a few seconds (or
while the button is held), followed by the percentage indication of the
remaining battery charge, then enters measurement mode.
The pH reading is directly affected by temperature. In order for the meter to
measure the pH accurately, temperature must be taken in consideration. If the
sample temperature is quite different from the temperature at which the pH
electrode was kept, allow a few minutes for a perfect thermal equilibrium
between them.
To use the meter's Automatic Temperature Compensation feature, submerge the
temperature probe into the sample as close to the electrode as possible and wait
for a couple of minutes.
If manual temperature compensation (MTC) is desired, the temperature
probe must be disconnected from the instrument.
The display will show the default temperature of 25°C or the last temperature
set with the "°C" indicator blinking.
The MTC tag and up & down arrows symbols light
up on the LCD to indicate that the meter is in
MTC mode and the arrow keys can be used to
enter the desired temperature value.
Note: When in MTC the user can press and hold the arrow keys, and the meter
will start incrementing/decrementing the temperature value. The meter
keeps measuring and the display is updated every second.
After measurement switch the meter off, clean the electrode and store it with a
few drops of HI 70300 storage solution in the protection cap.
The auto-off feature turns the meter off after 20 minutes with no button
pressed. To disable this feature, see “Setup Menu” section on page 9.
pH MEASUREMENTS
To take a pH measurement remove the electrode
protective cap, unscrew the refilling hole cap, and
submerge the tip (at least 4cm/1½") of the
electrode and the temperature probe into the
sample to be tested.
If necessary, press the RANGE key until the display
changes to the pH mode.
Allow for the electrode to adjust and reading to
stabilize (hourglass symbol turns off).
The LCD will show the pH measurement together
with the temperature of the sample.
In order to take more accurate pH measurements, make sure that the
instrument is calibrated (see “Calibration” section for details).
It is recommended that the electrode is always kept wet and rinsed thoroughly
with the sample to be measured before use.
67
ORP MEASUREMENTS
To perform ORP measurements, connect an optional ORP electrode (see "Accessories" section) to the meter and turn it ON.
If necessary, enter the "mV" mode by pressing RANGE until the display changes
to mV.
Submerge the ORP electrode tip (4cm/1½") into the sample to be tested and
allow a few minutes for the reading to stabilize.
Measurements within the ±699.9 mV range are displayed with 0.1 mV
resolution, while outside this range the resolution automatically switches to 1
mV.
The ATC (or MTC) tag is turned off because mV readings are not temperature
compensated.
For accurate ORP measurements, the surface of the electrode must be clean and
smooth. Pretreatment solutions are available to condition the electrode and
improve its response time (see “Accessories” section).
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