Hanna Instruments pH 211, pH 212, pH 213 Instruction Manual

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Instruction Manual

Microprocessor-based

pH/mV/°C

Bench Meters

pH 210 pH 211
pH 212 pH 213

www.hannainst.com

23

pH 210, pH 211, pH 212 and pH 213 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 the instrument.
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 the instrument is 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.

The Hanna pH 210, pH 211, pH 212 and pH 213 are microprocessor-
based pH and Temperature bench meters.

pH 211 and pH 213 can also measure ion concentration (ISE) and
Oxidation Reduction Potential (ORP) in the mV range.

pH measurements are compensated for temperature effect manually or
automatically with the HI 7669/2W temperature probe.

The instrument is equipped with a large easy-to-read LCD which shows
the pH (or mV) and temperature simultaneously, together with graphic
symbols.

The calibration process is guided step by step through clear indications on
the LCD. A stability indicator makes the calibration procedure error-free.

Through the RS232 serial port data can be transferred to a PC
(pH 212 and pH 213 only).

Remove the instrument from the packing material and examine it
carefully 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 instrument is supplied with:

• HI 1131B Glass-body Combination pH Electrode

• HI 7669/2W Temperature Probe

• HI 76404 Electrode Holder

• pH 4.01 & 7.01 Buffer Solutions, 20 mL each

• HI 7071S Electrolyte Solution

• 12VDC Power Adapter

• Instruction Manual

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.

WARRANTY .................................................................................. 2

PRELIMINARY EXAMINATION ........................................................ 3

GENERAL DESCRIPTION ................................................................ 3

FUNCTIONAL DESCRIPTION pH 210 AND pH 211......................... 4

pH 210 AND pH 211 SPECIFICATIONS ........................................ 5

FUNCTIONAL DESCRIPTION pH 212 AND pH 213......................... 6

pH 212 AND pH 213 SPECIFICATIONS ........................................ 7

OPERATIONAL GUIDE ................................................................... 8

pH CALIBRATION ....................................................................... 11

TEMPERATURE CALIBRATION (for technical personnel only)........... 14

mV CALIBRATION (pH 213 only) (for technical personnel only) .... 16

PC INTERFACE (pH 212 & pH 213 only) .................................... 17

pH BUFFER TEMPERATURE DEPENDENCE...................................... 19

ELECTRODE CONDITIONING & MAINTENANCE............................... 20

TROUBLESHOOTING GUIDE ........................................................ 23

TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS ................. 24

ACCESSORIES ............................................................................. 25

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

Dear Customer,
Thank you for choosing a Hanna Instruments product.

Please read this instruction manual carefully before using the instruments.
This manual will provide you with the necessary information for correct use of
the instruments, as well as a precise idea of their versatility.
If you need additional technical information, do not hesitate to e-mail us at
[e-mail] or turn the back cover for our worldwide contact list.

These instruments are in compliance with directives.

WARRANTYWARRANTY

WARRANTYWARRANTY

WARRANTY

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

Hanna Instruments reserves the right to modify the design,

construction and appearance of its products without advance notice.

45

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H 210 AND H 210 AND

H 210 AND H 210 AND

H 210 AND

pp

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H 211H 211

H 211H 211

H 211

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

pp

pp

p

HH

HH

H

210 AND 210 AND

210 AND 210 AND

210 AND

pp

pp

p

HH

HH

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211 211

211 211

211

1) Liquid Crystal Display (LCD).

2) CFM key, to confirm different values.

3) CAL key, to enter or exit/escape calibration mode.

4) °C key, to manually decrease temperature or select pH buffer.

5) °C key, to manually increase temperature or select pH buffer.

6) MR key, to recall the stored value.

7) MEM key, to store a value into memory.

8) RANGE key, to select measurement range (pH 211 only).

9) ON/OFF switch.

10) Power adapter socket.

11) BNC electrode connector.

12) Electrode reference socket.

13) Temperature probe socket.

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Primary LCD

Secondary LCD

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Rear Panel

POWER
12VDC

INPUT TEMPREF

10

121311

Functions pH Calibration

pH 211

Microprocessor pH Meter

Confirm2 Buffer

nd

CFM

Select2 Buffer

nd

/

Confirm1 Buffer

st

CFM

/

Select1 Buffer

st

StartCalibration

CAL

MR

MemoryRecall

SelectpH / ORP

RANGE

MEM

MemorizeReading

MR

MEM

CC

RANGE

CFM

CAL

pH

C

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212 AND 212 AND

212 AND 212 AND

212 AND

pp

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213213

213213

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SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

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212 AND 212 AND

212 AND 212 AND

212 AND

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213213

213213

213

1) Liquid Crystal Display (LCD).

2) CFM key, to confirm different values.

3) CAL key, to enter or exit/escape calibration mode.

4) °C key, to manually decrease temperature or select pH buffer.

5) °C key, to manually increase temperature or select pH buffer.

6) MR key, to recall the stored value.

7) MEM key, to store a value into memory.

8) COMM key, to set the baud rate and the command prefix.

9) RANGE key, to select measurement range.

10) ON/OFF switch.

11) Power adapter socket.

12) BNC electrode connector.

13) Electrode reference socket.

14) Temperature probe socket.

15) RS232 serial communication connector.

Front Panel

Primary LCD

Secondary LCD

1

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3

2

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8

Rear Panel

POWER
12VDC

INPUT TEMP

RS232

REF

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13

14 15

12

Functions pH Calibration

pH 213

Microprocessor pH Meter

Confirm2 Buffer

nd

CFM

Select2 Buffer

nd

/

Confirm1 Buffer

st

CFM

/

Select1 Buffer

st

StartCalibration

CAL

COMM

RS232Communication

MR

MemoryRecall

SelectpH / ORP

RANGE

MEM

MemorizeReading

MR

MEM

COMM

CC

RANGE

CFM

CAL

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89

POWER CONNECTIONPOWER CONNECTION

POWER CONNECTIONPOWER CONNECTION

POWER CONNECTION

Plug the 12 VDC adapter into the power supply socket.

Notes: • These instruments use non volatile memory to retain the

pH, mV, temperature calibrations and all other settings,
even when unplugged.

• Make sure a fuse protects the main line.

ELECTRODE AND PROBE CONNECTIONSELECTRODE AND PROBE CONNECTIONS

ELECTRODE AND PROBE CONNECTIONSELECTRODE AND PROBE CONNECTIONS

ELECTRODE AND PROBE CONNECTIONS

For pH or ORP measurements connect an electrode with internal
reference to the BNC connector on the back of the instrument.

For electrodes with a separate reference connect the electrode’s BNC to the
BNC connector and the reference electrode plug to the reference socket.

For temperature measurements and automatic temperature compen­sation connect the temperature probe to the appropriate socket.

INSTRUMENT START-UPINSTRUMENT START-UP

INSTRUMENT START-UPINSTRUMENT START-UP

INSTRUMENT START-UP

• Turn the instrument on by pressing the ON/OFF
switch.

• All LCD tags are displayed and a beep is heard
while the instruments perform a self test (pH 212
and pH 213 only).

pH 210 & pH 211

pH 212 & pH 213

pH MEASUREMENTSpH MEASUREMENTS

pH MEASUREMENTSpH MEASUREMENTS

pH MEASUREMENTS

Make sure the instrument has been calibrated before
taking pH measurements.

• Submerge the electrode tip and the temperature
probe approximately 4 cm (1½”) into the sample
to be tested and stir gently. Allow time for the
electrode to stabilize.

C

• The pH is displayed on the primary LCD and the temperature on
the secondary LCD.

• If the pH reading is out of range, “----” will be displayed on the
LCD.

If measurements are taken successively in different samples, it is
recommended to rinse the electrode thoroughly with deionized water
or tap water and then with some of the next sample in order to
prevent cross-contamination.

The pH reading is affected by temperature. In order to measure the
pH accurately, the temperature effect must be compensated for.
To use the Automatic Temperature Compensation feature, connect
and submerge the HI 7669/2W temperature probe into the sample
as close as possible to the electrode and wait for a few seconds.

If the temperature of the sample is known,simple manual temperature
compensation can be performed by disconnecting the temperature probe.

The display will then show the default temperature
of 25 °C or the last recorded temperature reading
with the “°C” tag blinking. The temperature can now
be adjusted with the ARROW keys (from -9.9 °C to

120.0 °C).

ORP MEASUREMENTS (ORP MEASUREMENTS (

ORP MEASUREMENTS (ORP MEASUREMENTS (

ORP MEASUREMENTS (

pp

pp

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H 211H 211

H 211H 211

H 211

and p and p

and p and p

and p

H 213 H 213

H 213 H 213

H 213

onlyonly

onlyonly

only

))

))

)

An optional ORP electrode must be used to perform ORP measurements
(see Accessories).

Oxidation-reduction potential (REDOX) measurements provide the
quantification of the oxidizing or reducing power of the tested sample.

To correctly perform a redox measurement, the surface
of the ORP electrode must be clean and smooth.

• Press RANGE to enter mV range.

• Submerge the tip of the ORP electrode (4 cm/
1½") into the sample to be tested and allow a
few seconds for the reading to stabilize.

OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDEOPERATIONAL GUIDE

OPERATIONAL GUIDE

C

C

pH

C

10 11

pp

pp

p

H CALIBRATIONH CALIBRATION

H CALIBRATIONH CALIBRATION

H CALIBRATION

• The instrument displays the mV reading on the primary LCD and
the temperature on the secondary LCD.

• If the reading is out of range, “----” will be displayed on the
LCD.

TEMPERATURE MEASUREMENTSTEMPERATURE MEASUREMENTS

TEMPERATURE MEASUREMENTSTEMPERATURE MEASUREMENTS

TEMPERATURE MEASUREMENTS

Connect the HI 7669/2W

temperature probe to the

appropriate socket and turn the instrument on.
Immerse the temperature

probe

into the sample and

allow the reading on the secondary LCD to stabilize.

MEMORY FUNCTIONMEMORY FUNCTION

MEMORY FUNCTIONMEMORY FUNCTION

MEMORY FUNCTION

Press and hold down MEM. The last reading will appear on the LCD
along with “MEM” tag until MEM is released.

Press MR and the previously memorized reading will be displayed
with “MEM” tag on the LCD.

BEEP SETTINGBEEP SETTING

BEEP SETTINGBEEP SETTING

BEEP SETTING

((

((

(

pp

pp

p

H 212 H 212

H 212 H 212

H 212

andand

andand

and

pp

pp

p

H 213 H 213

H 213 H 213

H 213

onlyonly

onlyonly

only

))

))

)

Press and hold down °C and MEM keys and then power on the
instrument. After about 5 seconds the meter will display BEEP setting
menu. Use the ARROW keys to change the current setting. Press
CFM to confirm or CAL to escape without saving.

MR

Calibrate the instrument often, especially if high accuracy is required.
The instrument should be recalibrated:

• Whenever the pH electrode is replaced.

• At least once a week.

• After testing aggressive chemicals.

PREPARATIONPREPARATION

PREPARATIONPREPARATION

PREPARATION

Pour small quantities of the buffer solutions into clean beakers. If
possible use plastic or glass beakers to minimize any EMC interferences.
For accurate calibration and to minimize cross-contamination, use two

beakers for each buffer solution: one for rinsing the electrode and one for
calibration.

If you are measuring in the acidic range, use pH 7.01 as first buffer
and pH 4.01 as second buffer. If you are measuring in the alkaline
range, use pH 7.01 as first buffer and pH 10.01 or pH 9.18 as
second buffer.

PROCEDUREPROCEDURE

PROCEDUREPROCEDURE

PROCEDURE

Calibration has a choice of five memorized buffers: pH 4.01, 6.86,

7.01, 9.18 and 10.01.
It is recommended to perform a two-point calibration. However, one-

point calibration is also provided by the instruments.

TWO-POINT CALIBRATIONTWO-POINT CALIBRATION

TWO-POINT CALIBRATIONTWO-POINT CALIBRATION

TWO-POINT CALIBRATION

• Submerge the pH electrode and the tempera­ture probe approximately 4 cm (1½") into a
buffer solution and stir gently. The temperature
probe should be close to the pH electrode.

• Press CAL. The “CAL” and “

” tags will appear and “7.01”

buffer will be displayed on the secondary LCD.

• If necessary, press the ARROW keys to select a different buffer value.

• The “ ” tag will blink on the LCD until the reading is stable.

CAL

1

BUF

BUFFER pH

CAL

pH

mV

C

MEM

C

C

12 13

• When the reading is stable and close to the selected buffer,
“READY” tag will appear and “CFM” tag will blink.

• Press CFM to confirm calibration.

• The calibrated value is then displayed on the
primary LCD and the secondary LCD will display
the second expected buffer value.

Note: The instruments will automatically skip the buffer used for the

first point. It also skips 6.86 if 7.01 buffer was used and
viceversa. Likewise, it will skip 9.18 if 10.01 buffer was used and
viceversa.

• After the first calibration point is confirmed,
immerse the pH electrode and the temperature
probe approximately 4 cm (1½”) into the
second buffer solution and stir gently. The
temperature probe should be close to the pH
electrode.

• If necessary, press the ARROW keys to select a different buffer value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable, “READY” tag will appear and “CFM”
tag will blink.

• Press CFM to confirm calibration. The instrument
will return to measurement mode.

Notes: • If the value measured by the meter is not close to the

selected buffer, “WRONG ” and “WRONG ” tags will
blink alternately. In this case check if the correct buffer
has been used, or regenerate the electrode by following
the cleaning procedure (see page 22). If necessary,
change the buffer or the electrode.

• The “WRONG” tag and temperature value are displayed
blinking if the temperature reading is out of the defined
temperature range of the buffer. Calibration cannot be
confirmed in this situation.

C

C

• Press RANGE to display the tem­perature reading on the LCD during
calibration (pH 211, pH 212, pH
213 only).

ONE-POINT CALIBRATIONONE-POINT CALIBRATION

ONE-POINT CALIBRATIONONE-POINT CALIBRATION

ONE-POINT CALIBRATION

• Proceed as described in “Two-point calibration” section.

• Press CAL after the first calibration point
was confirmed.

The instrument will return to measurement mode
and will memorize the one-point calibration data.

Note: Press and hold down CFM and then press CAL. The instrument

sets default calibration parameters, displays “CLR” message for a
few seconds and then returns to normal measurement mode.

CFM

CFM

CAL

CAL

2

BUF

pH

BUFFER pH

14 15

TEMPERATURE CALIBRATIONTEMPERATURE CALIBRATION

TEMPERATURE CALIBRATIONTEMPERATURE CALIBRATION

TEMPERATURE CALIBRATION

((

((

(

for technical personnel onlyfor technical personnel only

for technical personnel onlyfor technical personnel only

for technical personnel only

))

))

)

C

C

C

C

CFM

CAL

C

CAL

C

CFM

All the instruments are factory calibrated for temperature.
Hanna’s temperature probes are interchangeable and no tempera-

ture calibration is needed when they are replaced.
If the temperature measurements are inaccurate, temperature

recalibration should be performed.
For an accurate recalibration, contact your dealer or the nearest
Hanna Customer Service Center, or follow the instructions bellow.

• Prepare a vessel containing ice and water and another one
containing hot water (at a temperature of around 50 ºC). Place
insulation material around the vessels to minimize temperature
changes.

• Use a calibrated thermometer with a resolution of 0.1 ºC as a
reference thermometer.

• With the instrument off, press and hold down the CAL&MEM
keys, then power on the instrument. The “CAL” tag will appear
and the secondary LCD will show 0.0 ºC.

• Immerse the temperature probe in the vessel with ice and water
as near as possible to the reference thermometer. Allow a few
seconds for the probe to stabilize.

• Use the ARROW keys to set the reading on the secondary LCD to
that of ice and water, measured by the reference thermometer.

• When the reading is stable and close to the selected calibration
point, “READY” tag will appear and “CFM” tag will blink.

• Press CFM to confirm. The secondary LCD will show 50.0 ºC.

• Immerse the temperature probe in the second vessel as near as
possible to the reference thermometer. Allow a few seconds for the
probe to stabilize.

• Use the ARROW keys to set the reading on the secondary LCD to
that of the hot water.

• When the reading is stable and close to the selected calibration

point, “READY” tag will appear and “CFM” tag will blink.

• Press CFM to confirm. The instrument returns
to measurement mode.

Note: If the reading is not close to the selected

calibration point, “WRONG” tag will blink.
Change the temperature probe and restart
calibration.

16 17

Data transmission from the instrument to the PC can be done with
the HI 92000 Windows® compatible software (optional). HI 92000
also offers graphing and on-line help feature.

Data can be exported to the most popular spreadsheet programs for
further analysis.

To connect your instrument to a PC, use the optional Hanna HI 920010
cable connector. Make sure that your instrument is switched off and
plug one connector to the instrument RS232C socket and the other into
the serial port of your PC.

Notes: • Other cables than HI 920010 may use a different

configuration. In this case communication between in­strument and PC may not be possible.

• If you are not using Hanna Instruments HI 92000
software, please see the following instructions.

SETTING THE BAUD RATE AND THE COMMANDSETTING THE BAUD RATE AND THE COMMAND

SETTING THE BAUD RATE AND THE COMMANDSETTING THE BAUD RATE AND THE COMMAND

SETTING THE BAUD RATE AND THE COMMAND
PREFIXPREFIX

PREFIXPREFIX

PREFIX

• To set the instrument baud rate, press COMM
while in measurement mode. The primary LCD
will show the current baud rate.

• Use the ARROW keys to change the displayed value (150; 300;
600; 1200; 2400 – factory setting; 4800; 9600).

• Press CFM to confirm. The primary LCD will show the current
command prefix (factory setting is 16).

• Use the ARROW keys to change the displayed value (between 0
and 47).

• Press CFM to confirm. The meter returns to
measurement mode.

Note: The command prefix must not be changed if

HI 92000 PC software is used.

PC INTERFACEPC INTERFACE

PC INTERFACEPC INTERFACE

PC INTERFACE

(p(p

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(p

H 212 & H 212 &

H 212 & H 212 &

H 212 &

pp

pp

p

H 213 H 213

H 213 H 213

H 213

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mm

mm

m

V CALIBRATION (V CALIBRATION (

V CALIBRATION (V CALIBRATION (

V CALIBRATION (

pp

pp

p

H 213 H 213

H 213 H 213

H 213

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(for technical personnel only)

C

C

CFM

COMM

All the instruments are factory calibrated for mV.
Hanna’s ORP electrodes are interchangeable and no mV calibration

is needed when they are replaced.
If the mV measurements are inaccurate, mV recalibration should be

performed.
For an accurate recalibration, contact your dealer or the nearest

Hanna Customer Service Center, or follow the instructions below.
A two or three-point calibration can be performed at 0.0 mV, 600.0

mV and 1800.0 mV.

• Attach to the BNC connector a mV simulator with an accuracy of
±0.1 mV.

• With the instrument off, press and hold down the MR&CFM
keys, then power on the instrument. The “CAL” tag will appear
and the secondary LCD will show 0.0 mV.

• Set 0.0 mV on the simulator.
When the reading is stable and close to the selected calibration

point, “READY” tag will appear and “CFM” tag will blink.

• Press CFM to confirm. The secondary LCD will display 600 mV.

• Set 600.0 mV on the simulator.
When the reading is stable and close to the selected calibration

point, “READY” tag will appear and “CFM” tag will blink.

• Press CFM to confirm. The secondary LCD will display 1800 mV.

• Set 1800.0 mV on the simulator.
When the reading is stable and close to the selected calibration

point, “READY” tag will appear and “CFM” tag will blink.

• Press CFM to confirm. The instrument returns to measurement
mode.

Notes: • If the reading is not close to the selected calibration point,

“WRONG” tag will blink. Verify calibration condition or
contact your vendor if you can not calibrate.

• Press CAL in any moment of the calibration process. The
instrument will return to measurement mode. If calibra­tion process is stopped after 600 mV is confirmed, the
600 mV range is calibrated and calibration parameters
are memorized.

18 19

SENDING COMMANDS FROM PCSENDING COMMANDS FROM PC

SENDING COMMANDS FROM PCSENDING COMMANDS FROM PC

SENDING COMMANDS FROM PC

It is also possible to remotely control the instrument with any
terminal program. Use HI 920010 cable to connect the instrument to
a PC, start the terminal program and set the communication options
as follows: 8, N, 1, no flow control.

COMMAND TYPESCOMMAND TYPES

COMMAND TYPESCOMMAND TYPES

COMMAND TYPES

To send a command to the instrument, follow the next scheme:

<DLE> <

command>

<CR>

This line makes the computer send a Data Link Escape character, the
command expressed as a 3-character sequence and a CR character.

Note: All the terminal programs that support the ANSI escape

sequence, represent the DLE character by the string '^P' and
the CR character by the string '^M'.

SIMPLE COMMANDSSIMPLE COMMANDS

SIMPLE COMMANDSSIMPLE COMMANDS

SIMPLE COMMANDS

PHR sets the range to pH
MVR sets the range to mV (pH 213 only)
CAL is equivalent to pressing CAL
CFM is equivalent to pressing CFM
UPC is equivalent to pressing the °C key
DWC is equivalent to pressing the °C key
MEM is equivalent to pressing MEM
MRR is equivalent to pressing MR
COM is equivalent to pressing COMM

COMMANDS REQUIRING AN ANSWERCOMMANDS REQUIRING AN ANSWER

COMMANDS REQUIRING AN ANSWERCOMMANDS REQUIRING AN ANSWER

COMMANDS REQUIRING AN ANSWER

pH? Causes the instrument to send the pH reading ("Err 1" is sent

if out of range). If the range is set to mV, "Err 6" is sent.

MV? Causes the instrument to send the mV reading ("Err 2" is sent

if out of range). If the range is set to pH, "Err 6" is sent.

TM? Causes the instrument to send the temperature reading

("Err 3" is sent if out of range).

Notes: • Either small or capital letters can be used.

• The characters sent by the meter

are always capital letters.

• A “CAN” character (ASCII Code 24) is sent when the
instrument receives an unknown or a corrupted command.

Note: Invalid commands will be ignored.

The 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 ºC.

pp

pp

p

H BUFFER TEMPERATUREH BUFFER TEMPERATURE

H BUFFER TEMPERATUREH BUFFER TEMPERATURE

H BUFFER TEMPERATURE

DEPENDENCEDEPENDENCE

DEPENDENCEDEPENDENCE

DEPENDENCE

PMETSREFFUBHp

CºFº10.468.610.781.910.01

023 10.489.631.764.923.01

514 00.459.601.793.942.01

0105 00.429.670.733.981.01

5195 00.409.650.772.921.01

0286 00.488.630.722.960.01

5277 10.468.610.781.910.01

0368 20.458.600.741.969.9

5359 30.448.699.611.929.9

04401 40.448.689.670.988.9

54311 50.438.689.640.958.9

05221 60.438.689.610.928.9

55131 80.448.689.699.897.9

06041 90.448.689.679.877.9

56941 11.448.699.659.867.9

07851 21.458.699.639.857.9

57761 41.468.600.719.847.9

08671 61.478.610.798.847.9

58581 71.478.620.778.847.9

09491 91.488.630.758.857.9

59302 02.498.640.738.867.9

20 21

ELECTRODE CONDITIONING &ELECTRODE CONDITIONING &

ELECTRODE CONDITIONING &ELECTRODE CONDITIONING &

ELECTRODE CONDITIONING &

MAINTENANCEMAINTENANCE

MAINTENANCEMAINTENANCE

MAINTENANCE

For refillable electrodes:For refillable electrodes:

For refillable electrodes:For refillable electrodes:

For refillable electrodes:

If the filling solution (electrolyte) is more than 2½ cm (1") below the
fill hole, add HI 7082 or HI 8082 3.5M KCl Electrolyte Solution for
double junction or HI 7071 or HI 8071 3.5M KCl+AgCl Electrolyte
Solution for single junction electrodes.

For faster response, unscrew the fill hole screw during measurements.

For AmpHelFor AmpHel

For AmpHelFor AmpHel

For AmpHel

®®

®®

®

electrodes: electrodes:

electrodes: electrodes:

electrodes:

If the electrode does not respond to pH changes, the battery is run
down and the electrode should be replaced.

MEASUREMENTMEASUREMENT

MEASUREMENTMEASUREMENT

MEASUREMENT

Rinse the electrode tip with distilled water. Immerse the tip (bottom
4 cm /1½”) 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 a few drops of the solution to be tested,
before taking measurements.

STORAGE STORAGE

STORAGE STORAGE

STORAGE

PROCEDUREPROCEDURE

PROCEDUREPROCEDURE

PROCEDURE

To minimize clogging and assure a quick response time, the glass bulb
and the junction should be kept moist and not allowed to dry out.

Replace the solution in the protective cap with a few drops of HI 70300
or HI 80300 Storage Solution or, in its absence, Filling Solution
(HI 7071 or HI 8071 for single junction and HI 7082 or HI 8082 for
double junction electrodes). Follow the Preparation Procedure on page
20 before taking measurements.

Note: NEVER STORE THE ELECTRODE IN DISTILLED OR DEIONIZED

WATER.

PERIODIC MAINTENANCEPERIODIC MAINTENANCE

PERIODIC MAINTENANCEPERIODIC MAINTENANCE

PERIODIC MAINTENANCE

Inspect the electrode and the cable. The cable used for connection to
the instrument must be intact and there must be no points of broken
insulation on the cable or cracks on the electrode stem or bulb.
Connectors must be perfectly clean and dry. If any scratches or cracks
are present, replace the electrode. Rinse off any salt deposits with
water.

For refillable electrodes:For refillable electrodes:

For refillable electrodes:For refillable electrodes:

For refillable electrodes:

Refill the reference chamber with fresh electrolyte (HI 7071 or HI 8071
for single junction or HI 7082 or HI 8082 for double junction
electrodes). Allow the electrode to stand upright for 1 hour.

Follow the Storage Procedure above.

PREPARATION PROCEDUREPREPARATION PROCEDURE

PREPARATION PROCEDUREPREPARATION PROCEDURE

PREPARATION PROCEDURE

Remove the protective cap of the pH electrode.
DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal

with electrodes. They will disappear when rinsed with water.
During transport, tiny bubbles of air may form inside the glass bulb

affecting proper functioning of the electrode. These bubbles can be
removed by “shaking down” the electrode as you would do with a
glass thermometer.

If the bulb and/or junction is dry, soak the electrode in HI 70300 or

HI 80300

Storage Solution for at least one hour.

22 23

CLEANING PROCEDURECLEANING PROCEDURE

CLEANING PROCEDURECLEANING PROCEDURE

CLEANING PROCEDURE

•

General

Soak in Hanna HI 7061 or HI 8061 General
Cleaning Solution for approximately ½ hour.

•

Protein

Soak in Hanna HI 7073 or HI 8073 Protein
Cleaning Solution for 15 minutes.

•

Inorganic

Soak in Hanna HI 7074 Inorganic Cleaning
Solution for 15 minutes.

•

Oil/grease

Rinse with Hanna HI 7077 or HI 8077 Oil and
Fat Cleaning Solution.

IMPORTANT: After performing any of the cleaning procedures, rinse
the electrode thoroughly with distilled water, refill the reference
chamber with fresh electrolyte (not necessary for gel-filled electrodes)
and soak the electrode in HI 70300 or HI 80300 Storage Solution for
at least 1 hour before taking measurements.

TROUBLESHOOTING GUIDETROUBLESHOOTING GUIDE

TROUBLESHOOTING GUIDETROUBLESHOOTING GUIDE

TROUBLESHOOTING GUIDE

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24 25

ACCESSORIESACCESSORIES

ACCESSORIESACCESSORIES

ACCESSORIES

pH BUFFER SOLUTIONS

HI 70004P pH 4.01 Buffer Sachets, 20 mL, 25 pcs
HI 70007P pH 7.01 Buffer Sachets, 20 mL, 25 pcs
HI 70010P pH 10.01 Buffer Sachets, 20 mL, 25 pcs
HI 7004L pH 4.01 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 8004L pH 4.01 Buffer Sol. in FDA approved bottle, 500 mL
HI 8006L pH 6.86 Buffer Sol. in FDA approved bottle, 500 mL
HI 8007L pH 7.01 Buffer Sol. in FDA approved bottle, 500 mL
HI 8009L pH 9.18 Buffer Sol. in FDA approved bottle, 500 mL
HI 8010L pH 10.01 Buffer Sol. in FDA approved bottle, 500 mL

ELECTRODE STORAGE SOLUTIONS

HI 70300L Storage Solution, 460 mL bottle
HI 80300L Storage Solution in FDA approved bottle, 460 mL

ELECTRODE CLEANING SOLUTIONS

HI 70000P Electrode Rinse Sachets, 20 mL, 25 pcs
HI 7061L General Cleaning Solution, 460 mL bottle
HI 7073L Protein Cleaning Solution, 460 mL bottle
HI 7074L Inorganic Cleaning Solution, 460 mL bottle
HI 7077L Oil & Fat Cleaning Solution, 460 mL bottle
HI 8061L General Cleaning Sol. in FDA approved bottle, 460 mL
HI 8073L Protein Cleaning Solution in FDA approved bottle, 460 mL
HI 8077L Oil & Fat Cleaning Sol. in FDA approved bottle, 460 mL

ELECTRODE REFILL ELECTROLYTE SOLUTIONS

HI 7071 3.5M KCl+AgCl Electrolyte, 4x50 mL, for single junction

electrodes

HI 7072 1M KNO3 Electrolyte, 4x50 mL
HI 7082 3.5M KCl Electrolyte, 4x50 mL, for double junction

electrodes

HI 8071 3.5M KCl+AgCl Electrolyte in FDA approved bottle,

4x50 mL, for single junction electrodes

HI 8072 1M KNO3 Electrolyte in FDA approved bottle, 4x50 mL
HI 8082 3.5M KCl Electrolyte in FDA approved bottle, 4x50 mL

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 interfe-rence is called
alkaline error and causes the pH to be underestimated. Hanna’s glass
formulations have the indicated characteristics.

1.0 Mol L-1 Na

+

0.1 Mol L-1 Na

+

Sodium Ion Correction for Glass at 20-25 °C
Concentration pH Error

13.00

13.50

14.00

12.50

13.00

13.50

14.00

0.10

0.14

0.20

0.10

0.18

0.29

0.40

The resistance of glass electrodes partially depends on the 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 are 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.

TEMPERATURE CORRELATIONTEMPERATURE CORRELATION

TEMPERATURE CORRELATIONTEMPERATURE CORRELATION

TEMPERATURE CORRELATION

FOR FOR

FOR FOR

FOR

pp

pp

p

H SENSITIVE GLASSH SENSITIVE GLASS

H SENSITIVE GLASSH SENSITIVE GLASS

H SENSITIVE GLASS

26 27

HI 1330B

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 (Ultem®), 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 (Ultem®), double junction, refillable, combination pH
electrode. Use: general purpose.

120 mm

4.7"

5mm

0.2"

5mm DIA

0.2"

"S" VERSION

HI 1330

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

ORP PRETREATMENT SOLUTIONS

HI 7091L Reducing Pretreatment Solution, 460 mL bottle
HI 7092L Oxidizing Pretreatment Solution, 460 mL bottle

pH ELECTRODES

All electrodes part numbers ending with B are supplied with 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.

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

28 29

Kynar® is registered Trademark of "Pennwalt Corp."

Ultem® is registered Trademark of "General Electric Co."

HI 1413B

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 (Ultem®), gel-filled, combination platinum ORP elec-
trode. Use: general purpose.

HI 4430B

Plastic-body (Ultem®), gel-filled, combination gold ORP electrode.
Use: general purpose.

Consult the Hanna General Catalog for more electrodes with screw­type or BNC connectors.

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

FC 100B

Plastic-body (Kynar®), double junction, refillable, combination pH
electrode. Use: general purpose for food industry.

FC 200B

Plastic-body (Kynar®), 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 (Kynar®), double junction, refillable with built-in ampli­fier, combination pH electrode. Use: very high humidity.

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

30 31

EXTENSION CABLE FOR SCREW-TYPE ELECTRODES
(SCREW TO BNC ADAPTER)

HI 7855/1 Extension cable 1 m (3.3') long
HI 7855/3 Extension cable 3 m (9.9') long

OTHER ACCESSORIES

HI 710005 Voltage adapter from 115 VAC to 12 VDC (USA plug)
HI 710006 Voltage adapter from 230 VAC to 12 VDC (European plug)
HI 710012 Voltage adapter from 240 VAC to 12 VDC (UK plug)

HI 710013 Voltage adapter from 230 VAC to 12 VDC (South Africa plug)

HI 710014 Voltage adapter from 230 VAC to 12 VDC (Australia plug)
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

HI 7669/2WTemperature probe with 1 m (3.3') cable
HI 92000 Windows® compatible software application
HI 920010 9 to 9-pin RS232 cable

CONNECT TO
SCREW TYPE

ELECTRODES

CONNECT TO THE

BNC SOCKET

OF THE METER

HI 7855 SERIES CABLE CONNECTORS

CONNECTOR AND 3.0 mm (0.12") CABLE WITH BNC

Windows® is registered Trademark of "Microsoft Co."

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 instrument’s 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.

32

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 a complete list of Sales and
Technical offices, please see www.hannainst.com

.

SALES AND TECHNICAL SERVICE CONTACTS

MAN213

12/06