Hanna Instruments HI 2211 User manual

1
Instruction Manual
Microprocessor-based
pH/mV/°C
Bench Meters
HI 2210 HI 2211
www.hannainst.com

23
HI 2210 and HI 2211 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.
WARRANTY .................................................................................. 3
PRELIMINARY EXAMINATION ........................................................ 4
GENERAL DESCRIPTION ................................................................ 4
FUNCTIONAL DESCRIPTION .......................................................... 5
SPECIFICATIONS........................................................................... 6
OPERATIONAL GUIDE ................................................................... 7
pH CALIBRATION ....................................................................... 10
TEMPERATURE CALIBRATION (for technical personnel only)........... 13
pH BUFFER TEMPERATURE DEPENDENCE...................................... 15
ELECTRODE CONDITIONING & MAINTENANCE ............................... 16
TROUBLESHOOTING GUIDE ........................................................ 19
TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS ................. 20
ACCESSORIES ............................................................................. 21
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
[email protected] or view our worldwide contact list at www.hannainst.com.
These instruments are in compliance with directives.
WARRANTYWARRANTY
WARRANTYWARRANTY
WARRANTY

45
Front PanelFront Panel
Front PanelFront Panel
Front Panel
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION
FUNCTIONAL DESCRIPTION
1) Liquid Crystal Display (LCD).
2) CAL key, to enter or exit/escape calibration mode.
3) CFM key, to confirm different values.
4) °C key and °C keys, to manually increase/decrease tem-
perature or select pH buffer.
5) RANGE key, to select measurement range (HI 2211 only).
6) MEM key, to store a value into memory.
7) MR key, to recall the stored value.
8) Secondary LCD.
9) Primary LCD.
10) ON/OFF switch.
11) Power adapter socket.
12) BNC electrode connector.
13) Temperature probe socket.
14) Electrode reference socket.
The Hanna HI 2210 and HI 2211 are microprocessor-based pH and
temperature bench meters.
HI 2211 can also be used for 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 7662 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.
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 7662 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.
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.
Rear PanelRear Panel
Rear PanelRear Panel
Rear Panel

67
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 combination electrode connect 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 compen-
sation 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 located
on the rear panel.
• All LCD segments are displayed while the instrument performs a
self test.
pH MEASUREMENTSpH MEASUREMENTS
pH MEASUREMENTSpH MEASUREMENTS
pH MEASUREMENTS
Make sure the electrode and the instrument have been
calibrated together before taking pH measurements.
• Submerge the electrode and the temperature
probe approximately 4 cm (1½”) into the sample
to be tested and stir gently. Allow time for the
electrode to stabilize.
• 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.
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDE
pH
C
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
EGNAR
Hp00.61ot00.2–
±)ylno1122IH(Vm9.993
±)ylno1122IH(Vm0002
C°0.021ot9.9–
NOITULOSER
Hp10.0
)ylno1122IH(Vm1.0
)ylno1122IH(Vm1
C°1.0
YCARUCCA
F°86/C°02@
±Hp10.0
±)ylno1122IH(Vm2.0
±)ylno1122IH(Vm1
±)C°0.001–0.0(C°5.0
1± )edistuo(C°
)rorreeborpgnidulcxe(
noitarbilaCHp
sreffub5,noitarbilactniop2ro1
elbaliava
)10.01,81.9,10.7,68.6,10.4(
noitasnepmocerutarepmeT :morfcitamotuArolaunaM
)F°0.842ot2.41(C°0.021ot9.9–
edortcelEHp)dedulcni(B1311IH
eborperutarepmeT)dedulcni(2667IH
ecnadepmitupnI01
21
smho
ylppusrewoP)dedulcni(retpadaCDV21
snoisnemiD)”9.2x1.7x4.9(mm47x281x042
thgieW ;)bl5.2(gK1.1
)bl5.5(gK5.2redlohhtiwtik
tnemnorivnE )F°221ot23(C°05ot0
gnisnednoc-nonHR%59.xam
ytnarraWsraey2

89
TEMPERATURE MEASUREMENTSTEMPERATURE MEASUREMENTS
TEMPERATURE MEASUREMENTSTEMPERATURE MEASUREMENTS
TEMPERATURE MEASUREMENTS
Connect the HI 7662 temperature probe to the TEMP
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.
C
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 7662 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, 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 (HORP MEASUREMENTS (H
ORP MEASUREMENTS (HORP MEASUREMENTS (H
ORP MEASUREMENTS (HII
II
I22
22
2
22
22
21111
1111
11 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.
• 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.
mV C

10 11
• When the reading is stable and close to the selected buffer,
“READY” message will appear and “CFM” message 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 vice
versa. Likewise, it will skip 9.18 if 10.01 buffer was used and
vice versa.
• 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 “ ” symbol will blink on the LCD until the reading is stable.
• When the reading is stable, “READY” message will appear and
“CFM” message 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 ” messages
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 18). If necessary, change the
buffer or the electrode.
• The “WRONG” message and temperature value are dis-
played blinking if the temperature reading is out of the
defined temperature range of the buffer. Calibration cannot
be confirmed in this situation.
CAL
2
BUF
pH
BUFFER pH
pp
pp
pH CALIBRATIONH CALIBRATION
H CALIBRATIONH CALIBRATION
H CALIBRATION
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 permitted by the instruments.
TWO-POINT CALIBRATIONTWO-POINT CALIBRATION
TWO-POINT CALIBRATIONTWO-POINT CALIBRATION
TWO-POINT CALIBRATION
• Submerge the pH electrode and the tempera-
ture 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 “ ” messages 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 “ ” symbol will blink on the LCD until the reading is stable.
CAL
1
BUF
BUFFER pH
CAL
pH

12 13
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))
))
)
CAL
C
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” message 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” message will appear and “CFM” message will blink.
• To confirm press CFM. The secondary LCD will show 50.0 ºC.
• Press RANGE to display the tem-
perature reading on the LCD during
calibration (HI 2211 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
CAL
C

14 15
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
pH BUFFER TEMPERATUREH BUFFER TEMPERATURE
H BUFFER TEMPERATUREH BUFFER TEMPERATURE
H BUFFER TEMPERATURE
DEPENDENCEDEPENDENCE
DEPENDENCEDEPENDENCE
DEPENDENCE
PMETSREFFUBHp
CºFº10.468.610.781.910.01
02310.489.631.764.923.01
51400.459.601.793.942.01
010500.429.670.733.981.01
519500.409.650.772.921.01
028600.488.630.722.960.01
527710.468.610.781.910.01
036820.458.600.741.969.9
535930.448.699.611.929.9
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
• 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
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.
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 dead
and the electrode should be replaced.
MEASUREMENTMEASUREMENT
MEASUREMENTMEASUREMENT
MEASUREMENT
Rinse the electrode tip with distilled water. Immerse the tip (bottom
4 cm /1½”) into 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.
STORAGESTORAGE
STORAGESTORAGE
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, Fill 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
16 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 must be intact and
well connected. No cracks should be seen 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.
ELECTRODE CONDITIONING &ELECTRODE CONDITIONING &
ELECTRODE CONDITIONING &ELECTRODE CONDITIONING &
ELECTRODE CONDITIONING &
MAINTENANCEMAINTENANCE
MAINTENANCEMAINTENANCE
MAINTENANCE
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.

18 19
TROUBLESHOOTING GUIDETROUBLESHOOTING GUIDE
TROUBLESHOOTING GUIDETROUBLESHOOTING GUIDE
TROUBLESHOOTING GUIDE
SMOTPMYSMELBORPNOITULOS
evissecxe/esnoperwolS
.tfird
.edortceleHpytriDdnaedortceleehtnaelC
IHnipitehtkaosneht
noitulos1608IHro1607
.setunim03rof
puetautculfsgnidaeR
.)esion(nwoddna
.noitcnujytrid/deggolC
leveletylortcelewoL
sedortceleelballifer(
.)ylno
.edortceleehtnaelC
noituloshserfhtiwllifeR
sedortceleelballiferrof(
dnaelbackcehC.)ylno
.rotcennoc
ehtniegnarfotuO
.elacsVm
yrD
.noitcnuj/enarbmem
ro00307IHnikaoS
egarots00308IH
dnaelbackcehC.noitulos
.rotcennoc
tonseodretemehT
reffubehttpecca
rofnoitulos
.noitarbilac
.degamadedortceleHp
.desureffubgnorW
gninaelcehtwolloF
onllitsfI.erudecorp
ehtecalper,stluser
.reffuBecalpeR.edortcele
swohsyalpsidehT
."----"dna"Hp"
HpehtniegnarfotuO
.elacs
edortceleehttahtyfireV)a
.detcennocsi
ehttahtyfireV)b
neebsahpacgnippihs
.devomer
.retemehtetarbilaceR)c
HpehterusekaM)d
deificepsehtnisielpmas
.egnar
etylortceleehtkcehC)e
larenegehtdnalevel
.edortceleehtfoetats
swohsyalpsidehT
."----"dna"Vm"
ehtniegnarfotuO
.elacsVm
edortceleehttahtyfireV
.detcennocsi
tonseodretemehT
ehthtiwkrow
.eborperutarepmet
erutarepmetnekorB
.eborp
erutarepmetgnorW
.desueborp
erutarepmetehtecalpeR
.eborp
otsliafretemehT
sevigroetarbilac
.sgnidaerytluaf
.edortceleHpnekorB.edortceleehtecalpeR
retemehtputratstA
sgatDCLllasyalpsid
.yltnenamrep
sisyekehtfoenO
.kcuts
rodraobyekehtkcehC
.rodnevehttcatnoc
egassemrorre"xxrrE"
.deyalpsid
.rorrelanretnIdnaretemehtfforewoP
ehtfI.notirewopneht
ehttcatnoc,stsisreprorre
.rodnev
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.