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

[e-mail] 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).

Notes:

• When reading is out of range, the display will flash the closest full-scale
value.

• If using pH electrode while in mV mode, the meter will measure the mV
generated by the pH electrode.

MEM and MR FUNCTIONS

From normal measurement mode, pressing the MEM key will freeze readings on
display and store into internal memory the current values (pH and tempera­ture, or mV and temperature) together with “condition” and buffer segments.

The MEM tag blinks and the display remains frozen until the MEM key is
pressed again.

SETUP MENU

The instrument allows the user to program several parameters though a Setup
Menu.

To enter the Menu mode, while in normal measurement mode, press and hold
the SETUP key for about 5 seconds.

Once entered the Menu, each parameter can be changed by using the arrow
keys; then pressing the CFM key will confirm the value and scroll to the next
parameter.

The sequence of programmable parameters is as follows:

1. Acoustic signal: On (default) or Off

Note: While in MEM mode, the user can switch between pH and mV by

pressing the RANGE key.

Stored value can be recalled by pressing MR: the display will show the value,
together with the RCL & MEM tags, as long as the MR key is pressed.

Note: Pressing MR, only the range that was active at the time MEM was

pressed is shown.

BACKLIGHT FEATURE

The meter is provided with a Backlight feature, which
can be easily toggled on and off through the key­board by pressing the LIGHT key.

Note: The backlight automatically shuts off after approximately 1 minute with

no buttons pressed.

2. Auto-off feature: 20 minutes (default) or disabled

3. Temperature measure unit: °C (default) or °F

4. Calibration segments: On (default) or Off

5. Calibration time-out: 1 (default) to 14 days or disabled (0 days)

After setting the last parameter, pressing the CFM key will confirm the value
and return to normal measurement mode.

89

CALIBRATION

HI 9026 is factory calibrated for ORP and temperature ranges. If
recalibration is needed, please contact your dealer or the nearest
Hanna Service Center.

pH CALIBRATION

It is recommended to calibrate the instrument frequently, especially if high
accuracy is required.

The pH range should be recalibrated whenever the pH electrode is replaced,
when the calibration time-out is expired (if feature is enabled), and at least
once a month.

The meter offers a choice of 7 memorized buffers (1.68, 4.01, 6.86, 7.01, 9.18,

10.01 and 12.45 pH) and also allows the user to enter two more pH values for

calibration, C1 and C2 (see “Custom Buffer Selection” section on page 12 for
details).

• Pour small quantities of selected buffer solutions into clean beakers. For accurate

calibration use two beakers for each buffer solution, the first one for rinsing the
electrode and the second one for calibration.

• Remove the protective cap and rinse the electrode with some of the buffer

solution to be used for the first calibration point.

Two-point calibration

• Enter the calibration mode by pressing the CAL key, then select the first

desired buffer with the arrow keys (standard memorized values) and/or the
CUSTOM BUF key (custom values).

• Submerge the electrode approximately 4 cm (1½") into the solution, place

the temperature probe as close as possible to the electrode and stir gently.

• The LCD will flash "NOT READY" for 12 sec-

onds, then: if the reading is not close to the
selected buffer, "WRONG " and "WRONG

" will blink alternatively;
if it is close to the selected buffer the meter
will advise the user with an acoustic signal (if
enabled) when the measure becomes stable
and the display will change to "READY" and
blinking "CFM".

• Press CFM to confirm the calibration: the
meter stores the first calibration point; the
primary LCD will show the first buffer value,
while the secondary LCD will show the second
buffer to be used for calibration (pH 4.01).

If you’re going to calibrate with a different buffer, select the desired value
by pressing the arrow keys.

• Submerge the electrode approximately 4 cm (1½") into the second buffer
solution, place the temperature probe as close as possible to the electrode
and stir gently.

• The LCD will flash "NOT READY" for 12 seconds, then: if the reading is not
close to the selected buffer, "WRONG " and "WRONG " will blink
alternatively;
if it is close to the selected buffer the meter will
advise the user with an acoustic signal (if
enabled) when the measure becomes stable
and the display will change to "READY" and
blinking "CFM".

• Press the CFM key: the value is stored in memory and the meter returns to
the normal mode. The tags corresponding to the buffers used for calibration
will light up together with the “condition” bargraph.

Note: The meter automatically skips the buffer used for the first calibration point to

avoid erroneous procedure. A difference of at least 1.5 pH unit is required
between the two buffers used for the offset and slope calibration: once
calibrated at either pH 7.01 or 6.86, the instrument automatically ignores
the other value for the second point (same for pH 10.01 and 9.18).

Note: During calibration, the secondary LCD shows the selected buffer value;

press RANGE to display the buffer temperature.

Note: To clear a previous calibration and return to the default values, press

CLR at any time after entering the calibration mode. The LCD will show
“CLr CAL” for one second, and then returns to normal measurement
mode. The LCD will show an empty bargraph and a blinking CAL tag to
warn the user that the meter is not calibrated.

One-point calibration

For optimum accuracy it is always recommended to perform a two-point
calibration, but for a faster operation it is also possible to carry out a single­point procedure.
Buffers at pH 7.01 or pH 6.86 (NIST) are the most appropriate for this
purpose, even though meters can be calibrated with any of the memorized
calibration values.

10 11

After calibrating the first point (see above), press the CAL key to end the
calibration procedure.

Note: With one-point calibration there is not “Condition” and only the frame is

shown. Calibration time-out is active.

CUSTOM BUFFER SELECTION

• For setting the custom buffer values, from pH mode press the CAL key: the
meter will start from pH 7.01 buffer.

• Press the CUSTOM BUF key and use arrows for selecting the desired value for C1.

CONDITION

The display is provided with a 5-dot bargraph (unless the feature is disabled)
which gives indications about the electrode status after calibration as follows:

Bargraph indication Condition value

All 5 dots steady 81 to 100% of life

4 dots steady 61 to 80%

3 dots steady 41 to 60%

2 dots steady 21 to 40%

1 dot steady 1 to 20%

Note: To increase the speed, keep pressed the UP or DOWN arrow key.

• Press again the CUSTOM BUF key to store the
first custom buffer and scroll to the second one.
Enter C2 with the arrow keys, then press again
CUSTOM BUF and the meter will return to the
standard buffers mode

For pH measurements of wine and must, it is recommended to set the
pH 3.00 custom buffer value.

EXPIRED CALIBRATION

The instrument is provided with a real time clock (RTC), in order to monitor the
time elapsed since the last pH calibration.
The real time clock is reset every time the meter is calibrated and the “expired
calibration” status is triggered when the meter detects a calibration time-out.
The CAL tag will start blinking to warn the user that the meter should be
recalibrated.
The calibration time-out can be set (see “Setup menu” section at page 9) from
0 (function disabled) to 14 days.
For example, if a 4 days time-out has been selected the meter would issue the
alarm exactly 4 days after the last calibration.
However, if at any moment the expiration value is changed (e.g. to 7 days),
then the alarm will be immediately recalculated and appear 7 days after the
last calibration.

Notes:

• When the meter is not calibrated or calibration is cleared (default values
loaded) there is no “expired calibration”, and the display always shows a
blinking CAL tag.

• When an abnormal condition in the RTC is detected the meter forces the
“expired calibration” status.

12 13

1 dot blinking 0%

Only frame is ON No info available

The “condition” bargraph remains active for 12 hours after calibration, then
only the frame is shown.

Note: When an abnormal condition in the RTC is detected, the “condition” is

cleared and only the bargraph frame is shown on display.

CLEAN ELECTRODE

Each time the pH calibration is performed, the meter internally compares the
new calibration data with the ones previously stored.

When this comparison indicates a significant differ­ence, the CLEAN message blinks on the LCD to
advise the user that the pH electrode may need to
be cleaned (see “Electrode Maintenance” section).

After cleaning, perform calibration.
Note: If the calibration data are cleared, the comparison is done with the

default values.

pH BUFFER TEMPERATURE DEPENDENCE

LCD MESSAGE GUIDE

pH readings are strongly affected by temperature. The calibration buffer
solutions are affected by temperature changes to a lesser degree than normal
solutions.

For manual temperature calibration please refer to the following chart.

TEMP pH BUFFER VALUES

°C °F 1.68 3.00 4.01 6.86 7.01 9.18 10.01 12.45

0 32 1.67 3.07 4.00 6.98 7.13 9.46 10.32 13.38
5 41 1.67 3.05 4.00 6.95 7.10 9.39 10.25 13.18
10 50 1.67 3.03 4.00 6.92 7.07 9.33 10.18 12.99
15 59 1.67 3.02 4.00 6.90 7.05 9.27 10.12 12.80
20 68 1.67 3.00 4.00 6.88 7.03 9.22 10.06 12.62
25 77 1.68 3.00 4.01 6.86 7.01 9.18 10.01 12.45
30 86 1.68 3.00 4.02 6.85 7.00 9.14 9.96 12.29
35 95 1.69 3.00 4.03 6.84 6.99 9.11 9.92 12.13
40 104 1.69 2.99 4.04 6.84 6.98 9.07 9.88 11.98
45 113 1.70 2.99 4.05 6.83 6.98 9.04 9.85 11.83
50 122 1.71 2.99 4.06 6.83 6.98 9.01 9.82 11.70
55 131 1.72 2.99 4.08 6.84 6.98 8.99 9.79 11.57
60 140 1.72 2.99 4.09 6.84 6.98 8.97 9.77 11.44
65 149 1.73 2.99 4.11 6.84 6.99 8.95 9.75 11.32
70 158 1.74 3.00 4.12 6.85 6.99 8.93 9.75 11.21
75 167 1.76 3.00 4.14 6.86 7.00 8.91 9.74 11.10
80 176 1.77 3.00 4.16 6.87 7.01 8.89 9.74 11.00
85 185 1.78 3.00 4.17 6.87 7.02 8.87 9.74 10.91
90 195 1.79 3.00 4.18 6.88 7.03 8.85 9.75 10.82
95 203 1.81 3.00 4.20 6.88 7.04 8.83 9.76 10.73

TAGS & SYMBOLS

• Mode tags light up for indicating the corresponding active mode, and blink
for warning the user.

SETUP on: setup menu mode has been entered.
CFM blinking: ask confirmation of calibration value.
CAL on: calibration mode has been entered.
CAL blinking: meter is not calibrated or calibration is expired.
RCL, MEM on: when recalling stored values.
MEM blinking: measurement stored in the internal memory and frozen on

the display.

• Indication of temperature compensation mode:

MTC for manual, ATC for automatic compensation.

• Battery symbol blinking: low battery condition, about 25 hours of

working time left. Batteries should be replaced.

• Calibration messages.
NOT READY blinking: buffer had been recognized, but reading is not

stable.

READY on: buffer has been recognized and reading is stable.
WRONG “BUF” & WRONG “Electrode” blinking alternatively: wrong

buffer, value not recognized.

CLEAN blinking: an abnormal difference between new and previous

calibration has been detected. Electrode cleaning is suggested. Follow the
cleaning procedure described in the “Electrode conditioning & mainte­nance” section.

14 15

TROUBLESHOOTING GUIDE

pH ELECTRODE MAINTENANCE

• Blinking full scale value: reading is out of range.

• Blinking “°C” (or “°F”): MTC mode or temperature probe not connected

or broken.

• Meter shuts off:

- check if auto-off feature is enabled; in this case meter shuts off after 20
minutes of non-use.

- dead battery; replace battery.

• "Er0, Er1, Er2" message: internal technical problem. Contact your dealer
or the nearest Hanna Service Center.

• "Clr" message, for 1 second at start-up: pH calibration cleared. Contact
your dealer or the nearest Hanna Service Center.

BATTERY REPLACEMENT

If batteries become weak, the display will flash the
battery symbol to advise the user that approximately
25 hours of working time is left. It is recommended to
replace batteries soon.

Moreover, when the battery level is too low to ensure
reliable readings, at start-up the display will show “0
bAtt” for a few seconds, then the meter automatically
turns off.

Battery replacement must only take place in a safe area and using the battery
type specified in this instruction manual.

To replace rundown batteries, remove the rear cover
of the instrument and substitute all four 1.5V AA
alkaline batteries with new ones, while paying atten­tion to the correct polarity. Reattach the cover and
tighten the two screws.

Note: To prevent damage to the electrode, remove the pH electrode from the

sample before turning the meter off. With the meter OFF, detach the
electrode from the meter and immerse it in the storage solution.

Preparation

Remove the electrode protective cap. Do not be alarmed if any salt deposits are
present: this is normal with electrodes and they will disappear when rinsed with
water.
During transport tiny bubbles of air may have formed inside the glass bulb. The
electrode cannot function properly under these conditions. These bubbles can be
removed by "shaking down" the electrode as you would do with a glass
thermometer.

Sensitive bulb

To avoid clogging problems and ensure a fast response, the bulb must be kept
moist at any time. Store the electrode with few drops of HI 70300 storage
solution in the protective cap. NEVER USE DISTILLED OR DEIONIZED WATER FOR
STORING PURPOSES.

Periodic maintenance

Inspect electrode and cable. The cable used for the connection to the meter must
be intact and there must be no points of broken insulation. The connector must
be perfectly clean and dry. If any scratches or cracks are present, replace the
electrode.

Refilling the electrode

ALWAYS VERIFY THE ELECTROLYTE LEVEL.
If the electrolyte level is more than 2 cm below
the refilling hole, unscrew and remove the refill­ing hole cap.
Add the 3.5M KCl electrolyte solution (HI 7082)
by using the supplied syringe. Tighten back the
cap. Wait at least 1 hour before using the
electrode.

16 17

Cleaning procedure
After use, clean the electrode by immersing it in the proper cleaning solution (HI

700635 or HI 700636) for 5 minutes.

If case of slow and unreliable readings, it is recommended to perform the
following procedure for cleaning the junction:

1. Shift upwards the Teflon® collar. If the collar does not shift easily, immerse

it into warm water.

2. Wipe gently the electrode surface with a soft and clean tissue.

3. In case of persistent wine or must residual, wet the tissue with cleaning

solution (HI 700635 or HI 700636).

4. Put back the Teflon® collar in its original position.

Troubleshooting

Evaluate your electrode performance based on the following.

• Noise (Readings fluctuate up and down) could be due to:

– Clogged/Dirty Junction: refer to the cleaning procedure above.
– Loss of shielding due to low electrolyte level (in refillable electrodes

only): refill with fresh HI 7082 solution.

• Dry Membrane/Junction: soak in HI 70300 storage solution for 1 hour.

• Drifting: soak the electrode tip in warm (approx. 50-60°C) HI 7082
solution for one hour and rinse the tip with distilled water. Refill with fresh
HI 7082 solution.

• Low Slope: refer to the cleaning procedure above.

• No Slope: check the electrode for cracks in glass stem or bulb and replace
the electrode.

• Slow Response/Excessive Drift: soak the tip in HI 7061 solution for 30
minutes, rinse thoroughly in distilled water and then follow the cleaning
procedure above.

Recommendations for Users

Before using these products, make sure that they are entirely suitable for the environment in which they are used. Operation
of these instruments in residential area could cause unacceptable interference to radio and TV equipment, requiring the
operator to take all necessary steps to correct interference. The glass bulb at the end of the electrode is sensitive to
electrostatic discharges. Avoid touching this glass bulb at all times. During calibration of instruments, ESD wrist straps should
be worn to avoid possible damage to the electrode by electrostatic discharge. To maintain the EMC performance of
equipment, the recommended cables noted in the user's manual must be used. Any variation introduced by the user to the
supplied equipment may degrade the instruments' EMC performance. To avoid electrical shock, do not use these instruments
when voltages at the measurement surface exceed 24 Vac or 60 Vdc. To avoid damage or burns, do not perform any
measurement in microwave ovens.

ACCESSORIES

PROBES
HI 1048B Glass body, double junction, refillable pH electrode with

BNC connector and 1 m (3.3') cable

HI 3131B Glass-body, refillable, platinum ORP electrode
HI 7662 Stainless steel temperature probe with 1 m (3.3’) cable

Consult the Hanna General Catalog for a complete and wide selection of
electrodes.

pH BUFFER SOLUTIONS
HI 7001L pH 1.68 buffer solution, 500 mL bottle
HI 5003 pH 3.00 buffer solution, 500 mL bottle
HI 7004L pH 7.01 buffer solution, 500 mL bottle
HI 7006L pH 6.86 buffer solution, 500 mL bottle
HI 7007L pH 7.01 buffer solution, 500 mL bottle
HI 7009L pH 9.18 buffer solution, 500 mL bottle
HI 7010L pH 10.01 buffer solution, 500 mL bottle
HI 5124 pH 12.45 buffer solution, 500 mL bottle

ELECTRODE MAINTENANCE SOLUTIONS
HI 70000P Electrode rinsing solution, 20 mL sachet, 25 pcs
HI 70300L Storage solution, 500 mL bottle
HI 7061L General cleaning solution, 500 mL bottle
HI 70635L Cleaning solution for wine deposits, 500 mL bottle
HI 70636L Cleaning solution for wine stains, 500 mL bottle
HI 7073L Protein cleaning solution, 500 mL bottle
HI 7074L Inorganic cleaning solution, 500 mL bottle
HI 7077L Oil & Fat cleaning solution, 500 mL bottle
HI 7082 3.5M KCl electrolyte solution, 4 x 30 mL, for double junction

electrodes

HI 7091L Reducing pretreatment solution, 500 mL bottle
HI 7092L Oxidizing pretreatment solution, 500 mL bottle

OTHER ACCESSORIES
HI 721317 Rugged carrying case
HI 740157 Plastic electrode refilling pipet (20 pcs)
HI 76405 Electrode holder
HI 8427 pH and ORP electrode simulator with 1 m (3.3') coaxial

cable ending in female BNC connectors

HI 931001 pH and ORP electrode simulator with LCD and 1 m (3.3')

coaxial cable ending in female BNC connectors

18 19

SALES AND TECHNICAL SERVICE CONTACTS

Australia:

Tel. [phone] • Fax [phone]

China:

Tel. [phone] • Fax [phone]

Egypt:

Tel. & Fax [phone]

Germany:

Tel. [phone] • Fax [phone]

Greece:

Tel. [phone] • Fax [phone]

Indonesia:

Tel. [phone] • Fax [phone]

Japan:

Tel. [phone] • Fax [phone]

Korea:

Tel. [phone] • Fax [phone]

Malaysia:

Tel. [phone] • Fax [phone]

Singapore:

Tel. [phone] • Fax [phone]

South Africa:

Tel. [phone] • Fax [phone]

Taiwan:

Tel. [phone] • Fax [phone]

Thailand:

Tel. [phone] • Fax [phone]

United Kingdom:

Tel. [phone] • Fax [phone]

USA:

Tel. [phone] • Fax [phone]

For e-mail contacts and complete list of Sales and Technical
offices, please see www.hannainst.com

MAN9026V 06/05

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