Instruction Manual
HI 9124 HI 9125
Portable Waterproof
pH Meters
www.hannainst.com
1
Dear Customer,
Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before using these instruments.
This manual will provide you with the necessary information for correct
use of these instruments, as well as a precise idea of their versatility.
If you need additional technical information, do not hesitate to e-mail
us at tech@hannainst.com.
WARRANTYWARRANTY
WARRANTY
WARRANTYWARRANTY
HI 9124 & HI 9125 are guaranteed for two years against defects in
workmanship and materials when used for their intended purpose
and maintained according to instructions. Electrodes and probes are
guaranteed for six months. This warranty is limited to repair or
replacement free of charge.
Damage due to accidents, misuse, tampering or lack of prescribed
maintenance is not covered.
If service is required, contact the dealer from whom you purchased
these instruments. If under warranty, report the model number, date
of purchase, serial number and the nature of the problem. If the
repair is not covered by the warranty, you will be notified of the
charges incurred. If these instruments are to be returned to Hanna
Instruments, first obtain a Returned Goods Authorization number
from the Technical Service department and then send it with shipping
costs prepaid. When shipping any instrument, make sure it is
properly packed for complete protection.
WARRANTY
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
WARRANTY .................................................................................. 2
PRELIMINARY EXAMINATION ......................................................... 3
GENERAL DESCRIPTION ................................................................. 3
LCD MESSAGE GUIDE .................................................................... 4
FUNCTIONAL DESCRIPTION ........................................................... 5
SPECIFICATIONS...........................................................................6
OPERATIONAL GUIDE.................................................................... 7
pH CALIBRATION ....................................................................... 10
pH BUFFER TEMPERATURE DEPENDENCE ....................................... 13
SETUP MENU ............................................................................. 14
mV CALIBRATION (HI 9125 only) ................................................ 15
TEMPERATURE CALIBRATION ....................................................... 15
BATTERIES REPLACEMENT ............................................................ 16
TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS ................ 18
ELECTRODE CONDITIONING & MAINTENANCE ................................ 19
TROUBLESHOOTING GUIDE ......................................................... 21
ACCESSORIES ............................................................................. 22
2
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
Remove the instrument 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.
Each meter is supplied with:
• HI 1230B non refillable combination double-junction pH electrode
with gelled electrolyte.
• HI 7662 stainless steel temperature probe with 1 m (3.3’’) cable
• pH 4.01 & pH 7.01 buffer solutions, 20 mL sachet
• 100 mL plastic beaker
• 3 x 1.5V AAA, batteries
• 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.
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
The HI 9124 and HI 9125 are state-of-the-art rugged waterproof,
hand held pH meters designed to provide laboratory results and
accuracy under harsh industrial conditions.
A large multi-level LCD, with clear indications related to the electrode
and instrument status, pH and temperature displayed simultaneously,
and user friendly symbols and text instructions during calibration.
The pH calibration procedure is automatic with 5 auto recognized
buffers (4.01, 6.86, 7.01, 9.18 and 10.01) and automatic temperature
compensation.
The HI 9125 can be used with ORP (Oxidation Reduction Potential)
electrodes. mV measurements automatically change from 0.1 to 1 mV
resolution when the reading reaches 700 mV.
3
LCD MESSAGE GUIDELCD MESSAGE GUIDE
LCD MESSAGE GUIDE
LCD MESSAGE GUIDELCD MESSAGE GUIDE
TAGS & SYMBOLS
• Mode tags lights up for indicating the corresponding active
mode, and blinks for warning the user.
MEASURE on: measurement mode.
SETUP on: SETUP menu mode has been entered.
CALIBRATION on: calibration mode has been entered.
MEMORIZE on: measurement stored in the internal memory and
frozen on the display
RECALL MEMORIZED on: stored value recalled.
• Battery symbol blinking: low battery condition. Batteries should
be replaced.
• Calibration messages.
WAIT NOT READY blinking: buffer has been recognized, but
reading is not stable.
READY on: buffer has been recognized and reading is stable.
WRONG and WRONG blinking alternatively: wrong
buffer, value not recognized.
• Main active key messages light up for indicating the
corresponding active key.
CFM blinking: ask for confirmation of calibration or set value.
MR on: MR key available.
MEM on: MEM key available.
CAL on: CAL key available.
RANGE on: RANGE key available. (HI 9125 only)
SETUP on: SETUP key available.
4
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
1) Liquid Crystal Display (LCD).
2) RANGE key, to select pH or mV (HI 9125 only).
3) ON/OFF key, to turn the meter ON and OFF.
4) CAL key, to enter or exit calibration mode.
5) SETUP/CFM key, to enter SETUP mode or to confirm calibration.
6) Battery compartment cap.
7) Temperature probe socket.
8) BNC electrode connector.
9) MR key, to recall stored value from memory.
10) MEM key, to store reading in memory.
11)p and q keys, for manual temperature setting, or selecting
pH buffer value.
12) Secondary display.
13) Primary display.
5
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SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
6
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDE
OPERATIONAL GUIDEOPERATIONAL GUIDE
INITIAL PREPARATION
The instrument is supplied with batteries. In order to place the
batteries inside the instrument follow the instructions from page 16.
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 can be used independently to
take temperature measurements, or it can be used in conjunction
with the pH electrode to utilize Automatic Temperature Compensation
(ATC) mode. If the probe is disconnected, temperature can also be set
manually with the ARROW keys.
Turn the instrument ON by pressing ON/OFF.
At start-up the display will show all the LCD segments and then the
battery percentage while the instrument performs a self check (or as
long as the button is held).
The meter automatically enters measurement mode.
After measurement, switch the meter off. Clean the electrode and store
it with a few drops of HI 70300 storage solution in the protective cap.
To save batteries, 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 14.
pH MEASUREMENTS
Calibrate the meter and pH electrode before
taking measurements. See page 10 for details.
To take a pH measurement remove the electrode’s
protective cap, rinse off pH sensing tip. Submerse
the electrode and the temperature probe 3 cm
(1¼”) into the sample and stir gently.
If necessary, press the RANGE key until the
display shows pH mode (HI 9125 only).
Allow time for the reading to stabilize.
7
3 cm
(1¼”)
The LCD will show the pH measurement and the temperature of the
sample.
If several measurements are taken successively in different samples,
rinse the electrode thoroughly with deionized or tap water and a
small amount of the sample to be measured.
The pH value of the sample is directly affected by temperature. In
order for the meter to measure the pH accurately, the value must be
compensated for temperature. If the sample temperature is different
from the temperature at which the pH electrode was kept, allow a
few minutes for thermal equilibrium.
To use the meter's Automatic Temperature Compensation feature,
submerse the temperature probe into the sample as close to the
electrode as possible and wait for a few minutes.
If manual temperature compensation 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” (or “°F”) indicator blinking.
The temperature can now be adjusted with the ARROW keys. Set the
value at the sample temperature.
Notes: • When the 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.
8
ORP MEASUREMENTS (HI 9125 only)
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.
Submerse the ORP electrode 3 cm (1¼”) into the sample to be tested
and wait 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.
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).
MEM & MR FUNCTIONS
The instrument allows the user to store the current measurement (pH
and temperature, or mV and temperature) into internal memory by
pressing the MEM key. The “MEMORIZE” tag lights up on display.
Stored values can be recalled by pressing MR: the display will show
the values and the “RECALL MEMORIZED” tag as long as the
button is pressed.
9
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H CALIBRATIONH CALIBRATION
p
H CALIBRATION
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H CALIBRATIONH 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 or temperature probe is replaced.
• At least once a week.
• After testing aggressive chemicals.
• When extreme accuracy is required.
PREPARATION
Pour a small quantity of buffer solution 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.
PROCEDURE
In order to perform pH calibration:
• Make sure that the meter is in the pH mode (HI 9125 only).
• Remove the protective cap and rinse the electrode with some of
the buffer solution to be used for the first calibration point.
There is a choice of 5 memorized buffers: 4.01, 6.86, 7.01, 9.18 and
10.01 pH.
TWO-POINT CALIBRATION
• Press the CAL key. The “CAL” and “ ” indicators will be
displayed. The secondary LCD will display buffer “7.01”. If a
different calibration buffer is desired (e.g. “6.86”), use the
ARROW keys to change the displayed value.
or
• Submerse the electrode approx. 3 cm (1¼”) into the solution,
place the temperature probe as close as possible to the electrode
and stir gently.
10
• The LCD will flash the “WAIT NOT READY” message.
• Once the reading is stable, if it is not close to the selected buffer,
“WRONG “ and “WRONG “ will blink alternatively; if it is
close to the selected buffer the display will change to “READY”
and blinking “Press: CFM to confirm calibration point”.
• Press the CFM key to confirm the calibration: the meter stores the
offset calibration point. The calibrated reading is then displayed
on the primary LCD while the secondary LCD will show the second
buffer to be used for calibration (pH 4.01).
• After the first calibration point is confirmed, submerse the electrode
into the second buffer (pH 4.01, 10.01 or 9.18) and stir gently.
Choose pH 4.01 for acidic samples, and pH 10.01 or 9.18 for
alkaline solutions.
• Submerse the electrode approx. 3 cm (1¼”) into the solution,
place the temperature probe as close as possible to the electrode
and stir gently.
• Select the second buffer value on the secondary display by
pressing the ARROW keys.
11
• If the reading is not close to the selected buffer, “WRONG ”
and “WRONG ” will blink alternatively;
• If the reading is close to the selected buffer and the reading is
stable, the “READY” symbol is displayed and the “CFM” symbol
starts blinking on the LCD, asking for confirmation.
• Press the CFM key: the value is stored into memory and the meter
returns to normal mode.
Notes: • 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).
• During calibration, the secondary LCD shows the selected
buffer value. For the HI 9125 model, it is possible to
display the buffer temperature during calibration by
pressing RANGE.
• To clear a previous calibration and return to the default
values, in calibration mode press CFM, then CAL before
the first buffer is accepted. The LCD will show “CLr CAL”
for one second, and then will return to normal mode.
ONE-POINT CALIBRATION
For optimum accuracy it is always recommended to perform a
two-point calibration, but for a faster operation a single-point
calibration can be used. pH 7.01 or pH 6.86 (NIST) are normally
used for this purpose, even though the meters can be calibrated with
any of the 5 memorized calibration values.
After calibrating the first point (see above), press the CAL key to end
the calibration procedure.
12
PMET SREFFUBHp
Cº Fº 10.4 68.6 10.7 81.9 10.01
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H BUFFER TEMPERATUREH BUFFER TEMPERATURE
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H BUFFER TEMPERATUREH BUFFER TEMPERATURE
DEPENDENCEDEPENDENCE
DEPENDENCE
DEPENDENCEDEPENDENCE
Temperature has an effect on pH. The calibration buffer solutions are
affected by temperature changes to a lesser degree than normal
solutions. During calibration the instrument will automatically calibrate
to the pH value corresponding to the measured or set temperature.
During calibration the instrument will display the pH buffer value at
25 °C.
13
SETUP MENUSETUP MENU
SETUP MENU
SETUP MENUSETUP MENU
Instrument allows the user to configure several parameters through
the Setup Menu.
To enter the SETUP mode, while in measurement mode, press and
hold the SETUP key for about 5 seconds. When the key is released
the first parameter will be displayed.
Once the menu is entered, 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.
1. Audible signal: On (default) or Off
2. Auto-off feature: 20 minutes (default) or disabled
3. Temperature measure unit: ºC (default) or ºF
After setting the last parameter, pressing the CFM key will confirm
the value and return to measurement mode.
14
mm
V CALIBRATION (HI 9125 V CALIBRATION (HI 9125
m
V CALIBRATION (HI 9125
mm
V CALIBRATION (HI 9125 V CALIBRATION (HI 9125
HI 9125 has been precalibrated for mV range at the factory.
For optimum accuracy, it is recommended to recalibrate the meter for
mV readings at least once a year. Contact your Dealer or the nearest
Hanna Customer Service Center for more information.
TEMPERATURE CALIBRATIONTEMPERATURE CALIBRATION
TEMPERATURE CALIBRATION
TEMPERATURE CALIBRATIONTEMPERATURE CALIBRATION
HI 9124 & HI 9125 have been precalibrated for temperature at the
factory.
For optimum accuracy, it is recommended to recalibrate the meter for
temperature at least once a year. Contact your Dealer or the nearest
Hanna Customer Service Center for more information.
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15
BATTERIES REPLACEMENTBATTERIES REPLACEMENT
BATTERIES REPLACEMENT
BATTERIES REPLACEMENTBATTERIES REPLACEMENT
The instrument is supplied with batteries. First time you start working
with the instrument, insert the supplied batteries in the battery
compartment observing the correct polarity (see page 17).
At start-up the battery percentage is displayed.
If the batteries become weak, the display will flash the battery
symbol to advise the user that approximately 1 hour of working time
remains. It is recommended to change the batteries as soon as the
battery symbol appears blinking.
The instrument is also provided with the BEPS (Battery Error Prevention
System) feature which automatically turns the instrument off when
the battery level is too low to ensure reliable readings. At start-up the
display will show “0 batt” for few seconds, then the instrument
automatically turns off.
16
To replace the batteries, follow the next steps:
• Turn the instrument OFF.
• Open the battery compartment cap (located on the top of the
instrument).
• Remove old batteries.
• Insert three new 1.5V AAA batteries in the battery compartment,
observing the polarity on the rear of the instrument.
• Reattach the battery compartment cap.
17
TEMPERATURE CORRELATIONTEMPERATURE CORRELATION
TEMPERATURE CORRELATION
TEMPERATURE CORRELATIONTEMPERATURE CORRELATION
FOR FOR
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The resistance of glass electrodes partially depends on temperature. The
lower the temperature, the higher the resistance. It takes more time for
the reading to stabilize if the resistance is higher. In addition, the response
time will suffer to a greater degree at temperatures below 25 °C.
Since the resistance of the pH electrode is in the range of 50 – 200
Mohms, the current across the membrane is in the pico Ampere range.
Large currents can disturb the calibration of the electrode for many
hours.
For these reasons high humidity environments, short circuits and static
discharges can be detrimental to a stable pH reading.
The pH electrode’s life also depends on the temperature. If constantly
used at high temperatures, the electrode life is drastically reduced.
Typical Electrode Life
Ambient Temperature 1 – 3 years
90 °C Less than 4 months
120 °C Less than 1 month
Alkaline Error
High concentrations of sodium ions interfere with readings in alkaline
solutions. The pH at which the interference starts to be significant
depends upon the composition of the glass. This interference is called
alkaline error and causes the pH to be underestimated. Hanna’s glass
formulations have the indicated characteristics.
Sodium Ion Correction for Glass at 20-25 °C
Concentration pH Error
0.1 Mol L-1 Na
1.0 Mol L-1 Na
H SENSITIVE GLASSH SENSITIVE GLASS
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H SENSITIVE GLASS
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14.00
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13.00
13.50
14.00
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0.14
0.20
0.10
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0.29
0.40
18
EE
LECTRODE CONDITIONING & MAINTENANCELECTRODE CONDITIONING & MAINTENANCE
E
LECTRODE CONDITIONING & MAINTENANCE
EE
LECTRODE CONDITIONING & MAINTENANCELECTRODE CONDITIONING & MAINTENANCE
Not present in gel electrodes.
PREPARATION PROCEDURE
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.
If the bulb and/or junction are dry, soak the electrode in HI 70300
Storage Solution for at least one hour or longer.
19
For refillable electrodes, if the refill solution (electrolyte) is more than 2½
cm (1”) below the fill hole, add the appropriate Electrolyte Solution.
MEASUREMENT
Rinse the electrode tip with distilled water, submerse it 3 cm (1¼”) in
the sample and stir gently for a few seconds.
For a faster response and to avoid cross contamination of the samples,
rinse the electrode tip with the solution to be tested, before taking
any measurements.
STORAGE PROCEDURE
To minimize clogging and ensure a quick response time, the glass
bulb and the junction should always be kept moist.
When not in use, store it with a few drops of HI 70300 storage
solution in the protective cap.
NEVER STORE THE ELECTRODE IN DISTILLED OR DEIONIZED
WATER.
PERIODIC MAINTENANCE
Inspect electrode and cable. The cable must be intact. No cracks
should be seen on the electrode stem or bulb. If any scratches or
cracks are present, replace the electrode. Rinse off any salt deposits
with water.
Connectors must be perfectly clean and dry.
For refillable electrodes:
Refill the electrode with fresh electrolyte (see the electrode’s specifications
to select the correct refilling solution). Allow the electrode to stand
upright for 1 hour. Follow the Storage Procedure above.
For nonrefillable electrodes:
Do not be concerned if crystals form in the gel. This will not effect pH
electrode response.
CLEANING PROCEDURE
• General Soak in Hanna HI 7061 General Cleaning
Solution for approximately ½ hour.
• Protein Soak in Hanna HI 7073 Protein Cleaning
Solution for 15 min.
• Inorganic Soak in Hanna HI 7074 Inorganic
CleaningSolution for 15 min.
• Oil/grease Rinse with Hanna HI 7077 Oil & Fat Cleaning
Solution for 1 min.
IMPORTANT: After performing any of the cleaning procedures, rinse
the electrode thoroughly with distilled water and soak it in HI 70300
Storage Solution for at least 1 hour before taking measurements.
20
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TROUBLESHOOTING GUIDETROUBLESHOOTING GUIDE
TROUBLESHOOTING GUIDE
TROUBLESHOOTING GUIDETROUBLESHOOTING GUIDE
21
ACCESSORIESACCESSORIES
ACCESSORIES
ACCESSORIESACCESSORIES
pH CALIBRATION SOLUTIONS
HI 70004P pH 4.01 Buffer Solution, 20 mL sachet, 25 pcs
HI 70007P pH 7.01 Buffer Solution, 20 mL sachet, 25 pcs
HI 70010P pH 10.01 Buffer Solution, 20 mL sachet, 25 pcs
HI 7004L pH 4.01 Buffer Solution, 500 mL bottle
HI 7004M pH 4.01 Buffer Solution, 230 mL bottle
HI 7006L pH 6.86 Buffer Solution, 500 mL bottle
HI 7006M pH 6.86 Buffer Solution, 230 mL bottle
HI 7007M pH 7.01 Buffer Solution, 500 mL bottle
HI 7007M pH 7.01 Buffer Solution, 230 mL bottle
HI 7009L pH 9.18 Buffer Solution, 500 mL bottle
HI 7009M pH 9.18 Buffer Solution, 230 mL bottle
HI 7010L pH 10.01 Buffer Solution, 500 mL bottle
HI 7010M pH 10.01 Buffer Solution, 230 mL bottle
ELECTRODE STORAGE SOLUTION
HI 70300L Storage Solution, 500 mL bottle
HI 70300M Storage Solution, 230 mL bottle
ELECTRODE CLEANING SOLUTIONS
HI 70000P Electrode Rinse Solution, 20 mL sachet, 25 pcs
HI 7061L General Cleaning Solution, 500 mL bottle
HI 7061M General Cleaning Solution, 230 mL bottle
HI 7073L Protein Cleaning Solution, 500 mL bottle
HI 7073M Protein Cleaning Solution, 230 mL bottle
HI 7074L Inorganic Cleaning Solution, 500 mL bottle
HI 7074M Inorganic Cleaning Solution, 230 mL bottle
HI 7077L Oil & Fat Cleaning Solution, 500 mL bottle
HI 7077M Oil & Fat Cleaning Solution, 230 mL bottle
REFILLING ELECTROLYTE SOLUTIONS (50 mL, 4 pcs)
HI 7071 3.5M KCl+AgCl Electrolyte for single junction electrodes
HI 7072 1M KNO3 Electrolyte
HI 7082 3.5M KCl Electrolyte for double junction electrodes
HI 8093 1M KCl+AgCl Electrolyte
ORP PRETREATMENT SOLUTIONS
HI 7091L Reducing Pretreatment Solution, 500 mL bottle
HI 7091M Reducing Pretreatment Solution, 230 mL bottle
HI 7092L Oxidizing Pretreatment Solution, 500 mL bottle
HI 7092M Oxidizing Pretreatment Solution, 230 mL bottle
ORP SOLUTIONS
HI 7020L Test Solution 200-275 mV, 500 mL bottle
HI 7020M Test Solution 200-275 mV, 230 mL bottle
HI 7021L Test Solution 240 mV, 500 mL bottle
HI 7021M Test Solution 240 mV, 230 mL bottle
HI 7022L Test Solution 470 mV, 500 mL bottle
HI 7022M Test Solution 470 mV, 230 mL bottle
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pH ELECTRODES
120 mm
4.7"
12 mm
0.5"
9.5mm DIA
0.37"
"S" VERSION
HI 1043
120 mm
4.7"
12 mm
0.5"
"S" VERSION
HI 1053
120 mm
12 mm
0.5"
5 mm
0.2"
3 mm
0.12"
3.0 mm DIA
0.12"
HI 1083
120 mm
4.7"
12 mm
0.5"
9.5mm DIA
0.37"
"S" VERSION
HI 1131
All electrodes part numbers ending in B are supplied with a BNC
connector and 1 m (3.3') cable, as shown below:
HI 1043B
Glass-body, double junction, refillable, combination pH electrode.
Use: strong acid/alkali.
HI 1053B
Glass-body, triple ceramic, conic shape, refillable, combination pH
electrode.
Use: emulsions.
HI 1083B
Glass-body, micro, Viscolene, non-refillable, combination pH electrode.
Use: biotechnology, micro titration.
HI 1131B
Glass-body, single junction, refillable, combination pH electrode.
Use: general purpose.
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HI 1330B
120 mm
4.7"
12 mm
0.5"
HI 1230
75 mm
2.95"
6 mm
0.25"
HI 2031
120 mm
4.7"
12 mm
0.5"
"S" VERSION
HI 1332
210 mm
8.25"
8 mm
0.3"
7.5mm DIA
0.29"
"S" VERSION
HI 1331
120 mm
4.7"
5mm
0.2"
5mm DIA
0.2"
"S" VERSION
HI 1330
Glass-body, semimicro, single junction, refillable, combination pH
electrode.
Use: laboratory, vials.
HI 1331B
Glass-body, semimicro, single junction, refillable, combination pH
electrode.
Use: flasks.
HI 1230B
Plastic-body (PES), double junction, gel-filled, combination pH
electrode.
Use: general, field.
HI 2031B
Glass-body, semimicro, conic, refillable, combination pH electrode.
Use: semisolid products.
HI 1332B
Plastic-body (PES), double junction, refillable, combination pH
electrode.
Use: general purpose.
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120 mm
4.7"
12 mm
0.5"
FC 100
75 mm
2.95"
6 mm
0.25"
FC 200
120 mm
4.7"
12 mm
0.5"
FC 210
120 mm
4.7"
12 mm
0.5"
9.5mm DIA
0.37"
FC 220
110 mm
4.3"
12 mm
0.5"
FC 911
FC 100B
Plastic-body (PVDF), double junction, refillable, combination pH electrode.
Use: general purpose for food industry.
FC 200B
Plastic-body (PVDF), open junction, conic, Viscolene, non-refillable,
combination pH electrode.
Use: meat & cheese.
FC 210B
Glass-body, double junction, conic, Viscolene, non-refillable, combination
pH electrode.
Use: milk, yogurt.
FC 220B
Glass-body, triple-ceramic, single junction, refillable, combination pH
electrode.
Use: food processing.
FC 911B
Plastic-body (PVDF), double junction, refillable with built-in amplifier,
combination pH electrode. Use: very high humidity.
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HI 1413B
110 mm
4.3"
12 mm
0.5"
HI 1413
150 mm
5.9"
12 mm
0.5"
"S" VERSION
HI 3131
120 mm
4.7"
12 mm
0.5"
HI 3230
"S" VERSION
120 mm
4.7"
12 mm
0.5"
HI 4430
"S" VERSION
Glass-body, single junction, flat tip, Viscolene, non-refillable, combination
pH electrode. Use: surface measurement.
ORP ELECTRODES
HI 3131B
Glass-body, refillable, combination platinum ORP electrode.
Use: titration.
HI 3230B
Plastic-body (PES), gel-filled, combination platinum ORP electrode.
Use: general purpose.
HI 4430B
Plastic-body (PES), gel-filled, combination gold ORP electrode.
Use: general purpose.
Consult the Hanna General Catalog for a complete and wide selection
of electrodes.
OTHER ACCESSORIES
HI 721317 Rugged carrying case
HI 740157 Plastic electrode refilling pipet (20 pcs)
HI 76405 Electrode holder
HI 7662 Temperature probe with 1 m (3.3') screened cable
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
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RECOMMENDATIONS FOR USERS
Before using these products, make sure they are entirely suitable for
the environment in which they are used.
Operation of these instruments in residential areas could cause
unacceptable interferences to radio and TV equipment, requiring the
operator to follow all necessary steps to correct interferences.
The glass bulb at the end of the pH electrode is sensitive to
electrostatic discharges. Avoid touching this glass bulb at all times.
During operation, ESD wrist straps should be worn to avoid possible
damage to the electrode by electrostatic discharges.
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.
Hanna Instruments reserves the right to modify the design,
construction and appearance of its products without advance notice.
27
Hanna Instruments Inc.
Highland Industrial Park
584 Park East Drive
Woonsocket, RI 02895 USA
Technical Support for Customers
Tel. (800) 426 6287
Fax (401) 765 7575
E-mail tech@hannainst.com
www.hannainst.com
Local Sales and Customer Service Office
Printed in EUROPE
(ROMANIA) MAN9125Y 09/10
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