Hanna Instruments HI 2214 User manual

pH/mV/°C
Bench Meter
with Custom Buffers
and Interval Logging
HI 2214 HI 2215
Instruction Manual
www.hannainst.com
Printed in ROMANIA MAN2215 07/14
Hanna Instruments Inc.
Highland Industrial Park
584 Park East Drive
Woonsocket, RI 02895 USA
Technical Support for Customers
Tel. [phone]
Fax [phone]
E-mail [email protected]
www.hannainst.com
Local Sales and Customer Service Office

WARRANTY
HI 2214 and HI 2215 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.
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 [email protected] or view our worldwide contact list at
www.hannainst.com.
TABLE OF CONTENTS
WARRANTY ............................................................................................. 2
PRELIMINARY EXAMINATION ...................................................................... 3
GENERAL DESCRIPTION ............................................................................ 3
FUNCTIONAL DESCRIPTION ........................................................................ 4
HI 2214 SPECIFICATIONS ........................................................................ 5
HI 2215 SPECIFICATIONS ........................................................................ 6
OPERATIONAL GUIDE ................................................................................ 7
pH CALIBRATION ...................................................................................... 9
pH BUFFER TEMPERATURE DEPENDENCE ................................................. 15
RELATIVE mV CALIBRATION .................................................................... 16
GOOD LABORATORY PRACTICE (GLP) ........................................................ 17
LOGGING FUNCTION ............................................................................... 21
SETUP .................................................................................................. 26
TEMPERATURE CALIBRATION (for technical personnel only) .......................... 30
mV CALIBRATION (for technical personnel only) .......................................... 31
PC INTERFACE ....................................................................................... 32
ELECTRODE CONDITIONING AND MAINTENANCE ......................................... 36
TROUBLESHOOTING GUIDE ..................................................................... 39
TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS ............................. 40
ACCESSORIES ........................................................................................ 41
Hanna Instruments reserves the right to modify the design,
construction or appearance of its products without advance notice.
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner.
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.

3
PRELIMINARY EXAMINATION
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 with 1 m (3.3')
Cable
•HI 7662 Temperature Probe
•HI 76404N Electrode Holder
•pH 4.01 & 7.01 Buffer Solutions (20 mL each)
•HI 7082 Electrolyte Solution
•HI 700661 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.
The HANNA HI 2214 and HI 2215 are microprocessor-based pH and
Temperature bench meters.
HI 2215 can also measure Oxidation Reduction Potential (ORP) in mV
range. Relative mV feature is also provided.
pH measurements are compensated for temperature effect manually or
automatically with the HI 7662temperature probe.
Up to a five-point pH calibration can be performed using seven standard
buffers. In addition, two custom buffers can be used during calibration.
The GLP feature provides data consistency.
A calibration due alarm can be set to alert the user that too much time
elapsed since the last pH calibration.
Data can be stored in the meter’s memory for later retrieval.
The meter’s memory can hold 100 manually logged points and 500 lot
logging points (HI 2215 only).
A USB connection ensures communication with a PC.
GENERAL DESCRIPTION
46
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 African plug)
HI 710014 Voltage adapter from 230 VAC to 12 VDC
(Australian plug)
HI 76404N 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 7662 Temperature probe with 1 m (3.3') cable
HI 92000 Windows®compatible software
Windows®is registered Trademark of "Microsoft Co."

4
1) Liquid Crystal Display (LCD)
2) CAL key, to enter and exit calibration mode
3) CFM/GLP key, to confirm calibration, different values or to display
Good Laboratory Practice information
4) ºC key, to manually increase temperature value or other parameters
5) ºC key, to manually decrease temperature value or other parameters
6) SETUP key, to enter/exit SETUP mode
7) RANGE key, to select measurement range, switch to focused data in
SETUP or toggle between buffer value and temperature during
calibration
8) LOG/CLR key, to store a value into memory, to clear pH calibration,
or to delete log records
9) RCL key, memory recall
10) ON/OFFswitch
11) Power supply socket
12) USB connector
13) BNC electrode connector
14) Temperature probe socket
15) Electrode reference socket
FUNCTIONAL DESCRIPTION
Front Panel
Rear Panel
45
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 (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 more electrodes with screw-type or
BNC connectors.

5
HI 2214 SPECIFICATIONS
EGNAR
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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.

6
HI 2215 SPECIFICATIONS
EGNAR
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Hp000.61ot000.2–
)PRO&ESI(Vm9.999±
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43
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 (PES), double junction, gel-filled, combination pH electrode.
Use: general, field.
HI 2031B
Glass-body, semimicro, conic, refillable, combination pHelectrode.
Use: semisolid products.
HI 1332B
Plastic-body (PES), double junction, refillable, combination pH electrode.
Use: general purpose.

7
3 cm
(1¼")
OPERATIONAL GUIDE
POWER CONNECTION
Plug the 12 VDC adapter into the power supply socket.
Notes:•This instrument uses 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 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-UP
•Turn the instrument on by pressing the ON/OFF switch located on
the rear panel.
•All LCD tags are displayed and a beep is sounded while the instruments
perform a self test.
•The instrument will display “LoAd” message and
“” blinking until initialization is complete.
pH MEASUREMENTS
Make sure the instrument has been calibrated before
taking pH measurements.
•Submerse the electrode tip and the temperature
probe approximately 3 cm (1¼”) 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 reading is out of range, the closest full-scale value will be
displayed blinking on the primary LCD.
42
ORP PRETREATMENT SOLUTIONS
HI 7091L Reducing Pretreatment Solution, 500 mL
HI 7092L Oxidizing Pretreatment Solution, 500 mL
pH ELECTRODES
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, double junction, refillable, combination pH electrode.
Use: general purpose.

8
3 cm
(1¼")
Ifmeasurements 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 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 submerse
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 used by disconnecting the temperature probe.
The display will then show the last temperature
reading with the “ºC” tag blinking.
The temperature can now be adjusted with the
ARROW keys (from –20.0 ºC to 120.0 ºC).
mV/ORP MEASUREMENTS
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.
The surface of the ORP electrode must be clean and
smooth in order to obtain an accurate measurement.
•Press RANGE to enter mV range.
•Submerse the tip of the ORP electrode 3 cm (1¼”) 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, the closest full-scale value will be
displayed blinking on the primary LCD.
41
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 7001L pH 1.68 Buffer Solution, 500 mL
HI 7004L pH 4.01 Buffer Solution, 500 mL
HI 7006L pH 6.86 Buffer Solution, 500 mL
HI 7007L pH 7.01 Buffer Solution, 500 mL
HI 7009L pH 9.18 Buffer Solution, 500 mL
HI 7010L pH 10.01 Buffer Solution, 500 mL
HI 8004L pH 4.01 Buffer Solution in FDA approved bottle, 500 mL
HI 8006L pH 6.86 Buffer Solution in FDA approved bottle, 500 mL
HI 8007L pH 7.01 Buffer Solution in FDA approved bottle, 500 mL
HI 8009L pH 9.18 Buffer Solution in FDA approved bottle, 500 mL
HI 8010L pH 10.01 Buffer Solution in FDA approved bottle, 500 mL
ELECTRODE STORAGE SOLUTIONS
HI 70300L Storage Solution, 500 mL
HI 80300L Storage Solution in FDA approved bottle, 500 mL
ELECTRODE CLEANING SOLUTIONS
HI 70000P Electrode Rinse Sachets, 20 mL, 25 pcs
HI 7061L General Cleaning Solution, 500 mL
HI 7073L Protein Cleaning Solution, 500 mL
HI 7074L Inorganic Cleaning Solution, 500 mL
HI 7077L Oil & Fat Cleaning Solution, 500 mL
HI 8061L General Cleaning Solution in FDA approved bottle, 500 mL
HI 8073L Protein Cleaning Solution in FDA approved bottle, 500 mL
HI 8077L Oil & Fat Cleaning Solution in FDA approved bottle, 500 mL
ELECTRODE REFILL ELECTROLYTE SOLUTIONS
HI 7071 3.5M KCl + AgCl Electrolyte, 4x30 mL, for single junction
electrodes
HI 7072 1M KNO3Electrolyte, 4x30 mL
HI 7082 3.5M KCl Electrolyte, 4x30 mL, for double junction electrodes
HI 8071 3.5M KCl + AgCl Electrolyte in FDA approved bottle, 4x30
mL, for single junction electrodes
HI 8072 1M KNO3Electrolyte in FDA approved bottle, 4x30 mL
HI 8082 3.5M KCl Electrolyte in FDA approved bottle, 4x30 mL, for
double junction electrodes
ACCESSORIES

9
RELATIVE mV MEASUREMENTS
•Press RANGE until “rEL” message and “mV” tag are displayed for
one second. After one second the temperature will be displayed on
the secondary LCD and the “mV” tag will blink.
The reading displayed by the instrument is equal to the difference
between the current mV input value and relative mV offset established in
the relative mV calibration.
TEMPERATURE MEASUREMENTS
Connect the HI 7662 temperature probe to the
appropriate socket and turn the instrument on.
Submerse the temperature probe into the sample
and allow the reading on the secondary LCD to stabilize.
pH CALIBRATION
Calibrate the instrument frequently, 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.
•If “CAL” “INTV” tags are blinking during measurement.
Every time you calibrate the instrument use fresh buffers and perform an
electrode Cleaning Procedure (see page 38).
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 or 6.86 as first
buffer and pH 4.01 as second buffer. If you are measuring in the alkaline
range, use pH 7.01 or 6.86 as first buffer and pH 10.01 or 9.18 as
second buffer.
40
Typical Electrode Life
Ambient Temperature 1 –3 years
90ºCLess than 4 months
120 ºCLess 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.
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 ºC.
Since the resistance of the pH electrode is in the range of 50 –200
Mohm, 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 CORRELATION
FOR pH SENSITIVE GLASS
1.0 Mol L-1 Na+
0.1 Mol L-1 Na+
Sodium Ion Correction for the Glass at 20-25 ºC
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

10
3 cm
(1¼")
PROCEDURE
Calibration can be performed up to five-points.
For accurate measurements a three-point calibration is recommended.
The calibration buffer can be selected from the calibration buffer list that
includes custom buffers and the memorized standard buffers:
•pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01 and 12.45.
The custom buffers allow the user to calibrate in a buffer solution different
from a standard one. Up to two custom buffers can be set in SETUP menu
(see page 26). Each custom buffer value can be changed in a ±1.0 pH
window around the set value, during calibration, when it is selected; the
“BUFFER pH” tag will blink.
The instruments will automatically skip the buffer used during calibration
and the buffers which are in a ±0.2 pH window, around one of the
calibrated buffers.
All new calibrations will override existing stored calibration data in a
±0.2 pH window. The slopes adjacent to the new points will be
reevaluated.
FIVE-POINT CALIBRATION
•Submerse the pH electrode and the temperature
probe approximately 3 cm (1¼”) into a buffer
solution and stir gently. The temperature probe
should be close to the pH electrode.
•Press CAL. The “CAL” and “
BUF
” tags will
appear and the “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.
•When the reading is stable and close to the selected
buffer, the “READY” tag will be displayed and the
“CFM” tag will blink.
•Press CFM to confirm calibration.
39
TROUBLESHOOTING GUIDE
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