HANNA LITERATURE
Hanna publishes a wide range of catalogs and handbooks
for an equally wide range of applications.
The reference literature currently covers areas such as:
Instruction Manual
HI 8014 - HI 8314
HI 8424 - HI 8915
• Water Treatment
• Process
• Swimming Pools
• Agriculture
• Food
• Laboratory
• Thermometry
and many others. New reference material is constantly
being added to the library.
For these and other catalogs, handbooks and leaflets,
contact your dealer or the Hanna Customer Service Center
nearest to you. To find the Hanna Office in your vicinity,
check our home page at www.hannainst.com.
HI 9214 - HI 931000
HI 9622
Portable pH Meters
www.hannainst.com
MANPHCFMR3
06/02
Manufacturers since 1978
These Instruments are in
Compliance with the CE Directives
Dear Customer,
Thank you for choosing a Hanna product.
Please read this instruction manual carefully before using the meter.
This manual will provide you with the necessary information for a
correct use of the instrument, as well as a more precise idea of its
versatility.
If you need additional technical information, do not hesitate to e-mail
us at tech@hannainst.com.
These instruments are in compliance with the directives.
TABLE OF CONTENTS
PRELIMINARY EXAMINATION ........................................................ 3
GENERAL DESCRIPTION ................................................................3
FUNCTIONAL DESCRIPTION HI 8014............................................. 5
SPECIFICATIONS HI 8014 ............................................................ 6
FUNCTIONAL DESCRIPTION HI 8314............................................. 7
SPECIFICATIONS HI 8314 ............................................................ 8
FUNCTIONAL DESCRIPTION HI 8915............................................. 9
SPECIFICATIONS HI 8915 .......................................................... 10
FUNCTIONAL DESCRIPTION HI 9214........................................... 11
SPECIFICATIONS HI 9214 .......................................................... 12
FUNCTIONAL DESCRIPTION HI 8424........................................... 13
SPECIFICATIONS HI 8424 .......................................................... 14
FUNCTIONAL DESCRIPTION HI 931000 .......................................15
SPECIFICATIONS HI 931000 ...................................................... 16
FUNCTIONAL DESCRIPTION HI 9622........................................... 17
SPECIFICATIONS HI 9622 .......................................................... 18
OPERATIONAL GUIDE ................................................................. 19
pH CALIBRATION .......................................................................25
pH VALUES AT VARIOUS TEMPERATURES................................... 35
TEMPERATURE CALIBRATION ...................................................... 36
mV OUTPUT .............................................................................. 36
TROUBLESHOOTING GUIDE ........................................................37
ELECTRODE CONDITIONING AND MAINTENANCE ........................... 39
TAKING REDOX MEASUREMENTS................................................. 42
BATTERY REPLACEMENT .............................................................. 43
DISPLAY CODES GUIDE............................................................... 44
ACCESSORIES ............................................................................. 45
ELECTRODE APPLICATION REFERENCE GUIDE ................................ 52
WARRANTY ................................................................................ 53
OTHER PRODUCTS FROM HANNA ............................................... 54
CE DECLARATION OF CONFORMITY.............................................. 55
2
CE DECLARATION OF CONFORMITY
Recommendations for Users
Before using these products, make sure that they are entirely suitable for the environment in which
they are used.
Operation of these instruments in residential areas could cause unacceptable interferences to radio and
TV equipment.
The glass bulb at the end of the 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 24VAC or 60VDC.
For HI 8424 and HI 9622: the position of the probes' cable (the pH electrode and the temperature
probe) could effect the measurements. In order to minimize these effects due to external electromagnetic fields, it is recommended to keep parallel the cables of the two probes and as close as possible
to the instrument.
In particular cases HI 8915 could change its operating mode. In such cases, press any key to return to
normal operating conditions.
In particular cases, HI 8314 and HI 9214 could turn off. In such cases, turn the meters on by pressing
the ON/OFF key.
To avoid damages or burns, do not perform any measurement in microwave ovens.
55
OTHER PRODUCTS FROM HANNA
PRELIMINARY EXAMINATION
• CALIBRATION AND MAINTENANCE SOLUTIONS
• CHEMICAL TEST KITS
• CHLORINE METERS
• CONDUCTIVITY/TDS METERS
• DISSOLVED OXYGEN METERS
• HYGROMETERS
• ION SPECIFIC METERS (Colorimeters)
• MAGNETIC STIRRERS
• Na/NaCl METERS
• pH/ORP/Na ELECTRODES
• PROBES (DO, µS/cm, RH, T, TDS)
• PUMPS
• REAGENTS
• SOFTWARE
• THERMOMETERS
• TITRATORS
• TRANSMITTERS
• TURBIDITY METERS
• Wide Range of Accessories
Most Hanna meters are available in the following formats:
• BENCH-TOP METERS
• POCKET-SIZED METERS
• PORTABLE METERS
• PRINTING/LOGGING METERS
• PROCESS METERS (Panel and Wall-mounted)
• WATERPROOF METERS
• METERS FOR FOOD INDUSTRY
For additional information, contact your dealer or the nearest Hanna
Customer Service Center. You can also e-mail us at:
tech@hannainst.com.
54
Remove the instrument from the packing material and examine it
carefully to make sure that no damage has occurred during shipment. If noticeable damage is found, notify your Dealer or the nearest
Hanna Customer Service Center.
Note: Save all packing material until you are sure that the
instrument functions correctly. Any defective item must be
returned in the original packing together with the supplied
accessories.
GENERAL DESCRIPTION
HI 8014, HI 8314, HI 8424, HI 8915, HI 931000 and HI 9622 are
hand-held pH/mV meters. HI 9214 is a compact stick pH meter
designed to be carried anywhere.
Common features are: interchangeable plastic-body electrodes, simple
controls on the front panel, low battery detector, large easy-to-read
LCD display, simple calibration procedure and lightweight ABS plastic
housing.
• HI 8014 is an affordable portable pH/mV meter. The pH or mV
ranges are easily selected with a rotary knob. A °C range is also
provided for manual temperature compensation. HI 8014 comes
supplied with: HI 1332B combination, double-junction, refillable
pH electrode, a 9V battery and a calibration screwdriver.
• HI 8314 is a pH/mV/°C meter designed for simplicity of use in
taking pH, mV (ORP) and temperature measurements. The pH,
mV and °C ranges are easily selected through a membrane
keyboard on the front panel. Temperature compensation of pH is
automatic when the temperature probe is connected and calibration adjustments are easily made with two trimmers on the front
panel. HI 8314 comes supplied with: HI 1230B combination,
double-junction, gel pH electrode, HI 7669AW temperature probe,
a 9V battery and a calibration screwdriver.
• HI 8424 is a portable microprocessor-based pH/mV/°C meter. It
features a user-friendly membrane keyboard, automatic calibration and error codes to guide the user in calibration and
troubleshooting. The meter has three memorized buffer values:
pH 4.01, 7.01 and 10.01. It can also be used for ISE and ORP
3
measurements with automatic range switching when readings
exceed ±399.9 mV. HI 8424 comes supplied with: HI 1230B
combination, double-junction, gel pH electrode, HI 7669AW temperature probe and a 9V battery.
• HI 8915 is a portable pH/mV/°C meter that combines accurate
pH measurements with a recorder output capability and automatic temperature compensation. Two recorder output terminals
make it possible to attach a plotter or recorder directly to the
meter for a hard copy of the measurements. Pressing the HOLD
key will freeze the reading on the display. Calibration is performed using the two trimmers on the front panel. HI 8915
comes supplied with: HI 1230B combination, double-junction,
gel pH electrode, HI 7669AW temperature probe, a 9V battery
and a calibration screwdriver.
• HI 9214 is a compact microprocessor-based pH/°C meter. The
electrode has a built-in temperature sensor for quick and accurate
temperature measurements and temperature compensation. The
meter has three memorized buffer values (pH 4.01, 7.01, and
10.01) and automatic buffer recognition to avoid errors during
calibration. HI 9214 comes supplied with: HI 1217S screw-type
combination gel pH/°C electrode, a 9V battery and HI 710003
soft carrying case.
• HI 931000 is a compact, microprocessor-based pH/°C meter
with a 4-in-1 pH electrode (pH/°C electrode with built-in temperature sensor and signal amplifier). Optional shockproof
rubberboots are also available to prolong the life of the meter
and to prevent damage (see page 51). HI 931000 comes
supplied with: HI 1217D combination gel pH/°C electrode, with a
built-in temperature sensor and signal amplifier, a 9V battery
and HI 710004 soft carrying case.
• HI 9622 is a portable microprocessor-based pH/mV/°C meter
which meets the GLP (Good Laboratory Practice) requirements
and memorizes the last calibration date. The meter has three
memorized buffer values: pH 4.01, 7.01 and 10.01. The meter
can also be used for ISE and ORP measurements with automatic
range switching when readings exceed ±399.9 mV. HI 9622
comes supplied with: HI 1230B combination, double-junction, gel
pH electrode, HI 7669/2W temperature probe and a 9V battery.
WARRANTY
All Hanna Instruments meters are warranted for two years
against defects in workmanship and materials when used for their
intended purpose and maintained according to instructions. The
electrodes and the probes are warranted for a period of six
months. This warranty is limited to repair or replacement free of
charge.
Damages due to accident, misuse, tampering or lack of prescribed
maintenance are not covered.
If service is required, contact the dealer from whom you purchased the
instrument. If under warranty, report the model number, date of
purchase, serial number and the nature of the failure. 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 Customer Service department and then send it with shipping costs
prepaid. When shipping any instrument, make sure it is properly
packaged for complete protection.
All rights are reserved. Reproduction in whole or in part is
prohibited without the written consent of the copyright owner,
Hanna Instruments Inc., 584 Park East Drive, Woonsocket, Rhode
Island, 02895 , USA.
Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice.
4
53
ELECTRODE APPLICATION
REFERENCE GUIDE
App lic ati on Electrodes *
1. Aquarium HI 1332B, HI1312S
2. Bath-water HI 1130B, HI1110S
3. Beer HI 1131B, HI 1111S
4. Bread HI 2031B, FC200B, HI 2020S, FC200S
5. Cheese FC 200B, FC200S
6. Dairy products FC 911B, FC100B
7. Dirty water HI1230B, HI 1210S
8. Emulsions HI 1053B, HI1050S
9. Environment HI 1230B, HI1210S
10. Flasks HI 1331B, HI1310S
11. Food industry general use FC 911B, FC100B
12. Fruit FC 200B, FC220B, FC 200S
13. Fruit juices, organic FC210B
14. Galvanizing waste solution HI 1130B, HI1110S
15. High purity water HI 1053B, HI1050S
16. Horticulture HI 1053B, FC200B, HI 1050S, FC200S
17. Laboratory general use HI 1131B, HI1230B, HI 1332B, HI1330B
18. Leather HI1413B, HI1410S
19. Lemon juice FC100B
20. Meat FC200B, HI 2031B, FC200S, HI 2020S
21. Micro plate sampling of less than HI1083B
100 mL
22. Milk and Yogurt FC210B
23. Paints HI1053B, HI 1050S
24. Paper HI 1413B, HI1410S
25. Photographic chemicals HI 1230B, HI1210S
26. Quality control HI 1332B, HI1312S
27. Sausages FC 200B, HI2031B, FC 200S, HI2020S
28. Semi-solid products HI 2031B, HI2020S
29. Skin HI 1413B, HI1410S
30. Soil samples HI 1230B, HI1210S
31. Solvents HI 1043B, HI1040S
32. Strong acid HI 1043B, HI1040S
33. Submersion application HI 1130B, HI1110S
34. Surface measurements HI 1413B, HI1410S
35. Swimming pool H I1130B, HI2114P/2
36. Titrations with constant HI 1131B, HI 1111S
temperature range
37. Titrations with wide temperature HI 1131B, HI1111S
range
38. Very high humidity FC911B
39. Vials and test tube HI 1330B, HI1310S
40. Wine processing FC220B
B = BNC-type connector S = Screw-type connector
* All electrodes ending with "B" are supplied with 1m (3") cable
and BNC Connector
HI1111S, HI1210S, HI1312S, HI1310S
FUNCTIONAL DESCRIPTION HI 8014
1
2
3
4
1) BNC socket for combination pH electrodes.
2) Liquid Crystal Display (LCD).
3) Rotary Knob with the following selectable positions:
OFF To switch the meter off (in any other position the
instrument is on).
°C To display the manual temperature setting (through
°C trimmer).
pH To display the pH value.
mV To display the mV (ORP) readings when using an
ORP electrode or the mV equivalent to the pH values
when using a pH electrode.
4) Trimmers:
°C To set temperature manually.
mV/pH For SLOPE calibration of pH.
AP For OFFSET calibration of pH.
pH
pH meter
°C
OFF
°C mV/pH
HI 8014
pH
ins rum n
mV
AP
s
52
5
SPECIFICATIONS HI 8014
HI 8014
Range pH 0.00 to 14.00
mV ±1999
Resolution pH 0.01
mV 1
Accuracy pH ±0.01
(@20°C/68°F) mV ±1
Typical EMC pH ±0.05
Deviation mV ±8
pH Calibration Manual 2 point through
offset and slope trimmers
Offset Calibration ±1 pH
Slope Calibration from 85 to 105%
Temperature Manual from 0 to 100°C
Compensation (32 to 212°F)
Electrode HI 1332B combination, double-junction,
refillable pH electrode with BNC connector
and 1 m (3.3') cable (included)
Input Impedance 1012 ohm
Battery Type 1 x 9 volt
Life 100 hours of continuous use
Environment 0 to 50°C (32 to 122°F);
max 95% RH non-condensing
Dimensions 185 x 82 x 45 mm
(7.3 x 3.2 x 1.8")
Weight 520 g (1.1 lb.)
EXTENSION CABLES FOR SCREW-TYPE ELECTRODES
(SCREW TO BNC CONNECTOR)
HI 7855 SERIES CABLE CONNECTORS
CONNECTOR AND 3.0 mm (0.12") CABLE WITH BNC
CONNECT TO
SCREW TYPE
ELECTRODES
CONNECT TO THE
BNC SOCKET
OF THE METER
HI 7855/1 Extension cable 1 m (3.3') long
HI 7855/3 Extension cable 3 m (9.9') long
OTHER ACCESSORIES
HI 710001 Soft carrying case for HI 8014, HI 8314, HI 8424,
HI 8915 and HI 9622
HI 710003 Soft carrying case for HI 9214
HI 710004 Soft carrying case for HI 931000, (instrument only)
ChecktempC Pocket-size thermometer (range -50.0 to 150.0°C)
HI 76405 Electrode holder
HI 731326 Small screwdrivers (20 each) for calibration (HI 8014,
HI 8314, HI 8915)
HI 7669AW Temperature probe with 1 m (3.3') screened cable
(HI 8314, HI 8915, HI 8424)
HI 7669/2W Temperature probe with 1 m (3.3') screened cable
(HI 9622)
HI 721311 Rugged carrying case for HI 8014, HI 8314, HI 8915
with pH 4.01 and pH 7.01 solutions and screwdriver
HI 721312 Rugged carrying case for HI 8424 with pH 4.01 and
pH 7.01 solutions
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 710007 Shockproof, blue rubberboot for HI 931000
HI 710008 Shockproof, orange rubberboot for HI 931000
HI 710009 Blue rubberboot (except for HI 931000)
HI 710010 Orange rubberboot (except for HI 931000)
HI 710031 General-purpose rugged carrying case
6
51
HI 1413B
Glass-body, single junction, flat tip, Viscolene, non-refillable combination pH electrode. Use: surface measurement.
12 mm
0.5"
FUNCTIONAL DESCRIPTION HI 8314
1
5
HI 1413
110 mm
4.3"
ORP ELECTRODES
HI 3131B / HI 3111S
Glass-body, refillable, combination platinum ORP electrode.
Use: titration.
HI 3131
150 mm
"S" VERSION
5.9"
HI 3230B / HI 3210S
Plastic-body (Ultem®), gel-filled, combination platinum ORP elec-
trode. Use: general purpose.
HI 3230
120 mm
"S" VERSION
4.7"
HI 4430B / HI 4410S
Plastic-body (Ultem®), gel-filled, combination gold ORP electrode.
Use: general purpose.
HI 4430
120 mm
"S" VERSION
4.7"
12 mm
0.5"
12 mm
0.5"
12 mm
0.5"
2
3
4
pH
HI 8314
membrane
pHmeter
mV
STD
1nd
Calibration at pH
6.86 or 7.01
CALIBRATION
ON
OFF
pH
°C
SLOPE
2nd
Calibration at pH
4.01 or 10.01
6
7
8
9
1) BNC socket for combination pH or ORP electrodes.
2) Liquid Crystal Display (LCD).
3) mV to display the mV (ORP) readings when using an ORP
electrode; or the mV equivalent to pH values when using a
pH electrode.
4) STD trimmer for OFFSET calibration of pH.
5) Phono plug socket for HI 7669AW temperature probe.
6) ON/OFF to switch the instrument on or off.
7) pH to display the pH value.
8) °C to display the temperature measurement (when the
temperature probe is disconnected, the LCD will show 25°C).
9) SLOPE trimmer for SLOPE calibration of pH.
Ultem® is registered Trademark of "General Electrics Co."
50
7
SPECIFICATIONS HI 8314
HI 8314
Range pH 0.00 to 14.00
mV ±1999
°C 0.0 to 100.0
Resolution pH 0.01
mV 1
°C 0.1
Accuracy pH ±0.01
(@20°C/68°F) mV ±1
°C ±0.4
Typical EMC pH ±0.05
Deviation mV ±5
°C ±1
pH Calibration Manual 2 point through
offset and slope trimmers
Offset Calibration ±1 pH
Slope Calibration from 85 to 105%
Temperature Automatic from 0 to 70°C (32 to 158°F)
Compensation or fixed at 25°C (77°F)
with temperature probe detached
Electrode HI 1230B combination, double-junction,
gel-filled pH electrode with BNC connector
and 1 m (3.3') cable (included)
Temperature HI 7669AW (included)
Probe
Input Impedance 1012 ohm
Battery Type 1 x 9 volt
Life 100 hours of continuous use
Environment 0 to 50°C (32 to 122°F);
max 95% RH non-condensing
Dimensions 185 x 82 x 45 mm
(7.3 x 3.2 x 1.8")
Weight 570 g (1.3 lb.)
FC 100B
Plastic-body (Kynar®), double junction, refillable, combination pH
electrode. Use: general purpose for food industry.
12 mm
0.5"
FC 100
120 mm
4.7"
FC 200B / FC 200S
Plastic-body (Kynar®), single junction, conic, Viscolene, non-refillable,
combination pH electrode. Use: meat & cheese.
6 mm
0.25"
FC 200
75 mm
2.95"
FC 210B
Glass-body, double junction, conic, Viscolene, non-refillable combination pH electrode. Use: milk, yogurt.
12 mm
0.5"
FC 210
120 mm
4.7"
FC 220B
Glass-body, triple ceramic, single junction, refillable, combination pH
electrode. Use: food processing.
12 mm
0.5"
FC 220
9.5mm DIA
120 mm
4.7"
0.37"
FC 911B
Plastic-body (Kynar®), double junction, refillable with built-in amplifier, combination pH electrode. Use: very high humidity.
12 mm
0.5"
FC 911
110 mm
4.3"
Kynar® is registered Trademark of "Pennwalt Corp."
8
49
HI 1330B / HI 1310S
Glass-body, semimicro, single junction, refillable, combination pH
electrode. Use: laboratory.
HI 1330
"S" VERSION
120 mm
4.7"
5mm DIA
0.2"
5mm
0.2"
HI 1331B / HI 1311S
Glass-body, semimicro, single junction, refillable, combination pH
electrode. Use: flasks.
HI 1331
"S" VERSION
8 mm
0.3"
7.5mm DIA
210 mm
8.25"
0.29"
HI 1230B / HI 1210S
Plastic-body (Ultem®), double junction, gel-filled, combination pH
electrode. Use: general purpose.
12 mm
0.5"
HI 1230
120 mm
"
"
4.7"
HI 2031B / HI 2020S
Glass-body, semimicro, conic, refillable, combination pH electrode. Use:
semisolid products.
6 mm
0.25"
HI 2031
75 mm
"
"
2.95"
HI 1332B / HI 1312S
Plastic-body (Ultem®), double junction, refillable, combination pH
electrode. Use: general purpose.
12 mm
0.5"
FUNCTIONAL DESCRIPTION HI 8915
1
2
3
4
5
6
pH
HI 8915
ATC
pHmeter
HOLD
mV
OFFSET
+-
6.86
7.00
mV OUTPUT
CALIBRATION
ON
OFF
pH
°C
SLOPE
4.01
10.01
1) BNC socket for combination pH or ORP electrodes.
2) Liquid Crystal Dysplay (LCD).
3) HOLD to freeze the reading on the display.
4) mV to display the mV (ORP) readings when using an ORP
electrode; or the mV equivalent to the pH values when
using a pH electrode.
5) OFFSET trimmer for OFFSET calibration of pH
6) + recorder output (mV output, positive connection).
7) Phono plug socket for HI 7669AW temperature probe.
8) ON/OFF to switch the instrument on or off.
9) pH to display the pH value.
10) °C to display the temperature measurement (when the
temperature probe is disconnected, the LCD will show 25°C).
11) SLOPE trimmer for SLOPE calibration of pH.
12) - recorder output (mV output, negative connection).
7
8
9
10
11
12
HI 1332
"S" VERSION
Ultem® is registered Trademark of "General Electrics Co."
48
120 mm
4.7"
9
SPECIFICATIONS HI 8915
HI 8915
Range pH 0.00 to 14.00
mV ±1999
°C 0.0 to 100.0
Resolution pH 0.01
mV 1
°C 0.1
Accuracy pH ±0.01
(@20°C/68°F) mV ±1
°C ±0.5
Typical EMC pH ±0.02
Deviation mV ±1
°C ±0.8
pH Calibration Manual 2 point through
offset and slope trimmers
Offset Calibration ±1 pH
Slope Calibration from 85 to 105%
Temperature Automatic from 0 to 70°C (32 to 158°F)
Compensation or fixed at 25°C (77°F)
with temperature probe detached
Electrode HI 1230B combination, double-junction,
gel-filled pH electrode with BNC connector
and 1 m (3.3') cable (included)
Temperature HI 7669AW (included)
Probe
Input Impedance 1012 ohm
Recorder Output 100 mV/pH
1mV/mV
10mV/°C
Battery Type 1 x 9 volt
Life 100 hours of continuous use
Environment 0 to 50°C (32 to 122°F);
max 95% RH non-condensing
Dimensions 185 x 82 x 45 mm
(7.3 x 3.2 x 1.8")
Weight 570 g (1.3 lb.)
pH ELECTRODES
B = BNC CONNECTION PLUG + 1 m (3.3’) CABLE
S = SCREW-TYPE CONNECTOR
HI 1043B / HI 1040S
Glass-body, double junction, refillable, combination pH electrode.
Use: strong acid/alkali.
9.5mm DIA
0.37"
HI 1043
120 mm
"S" VERSION
4.7"
HI 1053B / HI 1050S
Glass-body, triple ceramic, conic shape, refillable, combination pH
electrode. Use: emulsions.
HI 1053
"S" VERSION
120 mm
4.7"
HI 1083B
Glass-body, micro, Viscolene, non-refillable, combination pH electrode.
Use: biotechnology, micro titration.
HI 1083
12 mm
0.5"
5 mm
0.2"
120 mm
3 mm
0.12"
"
HI 1131B / HI 1111S
Glass-body, single junction, refillable, combination pH electrode.
Use: general purpose.
9.5mm DIA
0.37"
HI 1131
120 mm
"S" VERSION
4.7"
12 mm
0.5"
12 mm
0.5"
3.0 mm DIA
0.12"
12 mm
0.5"
10
47
HI 7074M Inorganic Cleaning Solution, 230 mL
HI 7074L Inorganic Cleaning Solution, 460 mL
HI 7077M Oil & Fat Cleaning Solution, 230 mL
HI 7077L Oil & Fat Cleaning Solution, 460 mL
FUNCTIONAL DESCRIPTION HI 9214
1
ELECTRODE CLEANING SOLUTIONS IN FDA APPROVED
BOTTLE
HI 8061M General Cleaning Solution, 230 mL
HI 8061L General Cleaning Solution, 460 mL
HI 8073M Protein Cleaning Solution, 230 mL
HI 8073L Protein Cleaning Solution, 230 mL
HI 8077M Oil & Fat Cleaning Solution, 230 mL
HI 8077L Oil & Fat Cleaning Solution, 460 mL
REFILLING ELECTROLYTE SOLUTIONS
HI 7071 3.5M KCl + AgCl Electrolyte, 4 x 50 mL, for single
junction electrodes
HI 7072 1M KNO3 Electrolyte, 4 x 50 mL
HI 7082 3.5M KCl Electrolyte, 4 x 50 mL, for double junction
electrodes
REFILLING ELECTROLYTE SOLUTIONS IN FDA APPROVED
BOTTLE
HI 8071 3.5M KCl + AgCl Electrolyte, 4 x 50 mL, for single
junction electrodes
HI 8072 1M KNO3 Electrolyte, 4 x 50 mL
HI 8082 3.5M KCl Electrolyte, 4 x 50 mL, for double junction
electrodes
ORP PRETREATMENT SOLUTIONS
HI 7091M Reducing Pretreatment Solution, 230 mL
HI 7091L Reducing Pretreatment Solution, 460 mL
HI 7092M Oxidizing Pretreatment Solution, 230 mL
HI 7092L Oxidizing Pretreatment Solution, 460 mL
HI 7020M Test Solution, 200 - 275 mV, 230 mL
HI 7020L Test Solution, 200 - 275 mV, 460 mL
s
n
rum
ins
2
e
3
4
5
6
CFM
CAL
ON
OFF
H
p
HI 9214 stick pHmeter
1) °C button, located on the top of the meter, to display
temperature measurements.
2) CFM to confirm calibration values.
3) CAL to enter calibration mode or to select buffer.
4) ON/OFF to switch the instrument on or off.
5) Liquid Crystal Display (LCD).
6) Screw-type socket for combination pH electrode with built-in
temperature sensor.
46
11
SPECIFICATIONS HI 9214
HI 9214
Range pH 0.00 to 14.00
°C 0.0 to 70.0
Resolution pH 0.01
°C 0.1
Accuracy pH ±0.02
(@20°C/68°F) °C ±0.5
Typical EMC pH ±0.08
Deviation °C ±1
pH Calibration Automatic 2 point with
3 memorized standard buffers
(pH 7.01, 4.01 or 10.01)
Offset Calibration ±1 pH
Slope Calibration from 85 to 105%
Temperature Automatic from 0 to 70°C
Compensation (32 to 158°F)
Electrode HI 1217S gel combination
pH/°C (included)
Input Impedance 1012 ohm
Battery Type 1 x 9 volt
Life 100 hours of continuous use
Auto-off after 8 minutes of non-use
Environment 0 to 50°C (32 to 122°F);
max 95% RH non-condensing
Dimensions 185 x 42 x 26 mm
(7.3 x 1.6 x 1.0")
Weight 350 g (12.3 oz.)
ACCESSORIES
pH CALIBRATION SOLUTIONS
HI 70004P pH 4.01 Buffer Sachets, 25 x 20 mL
HI 7004M pH 4.01 Buffer Solution, 230 mL
HI 7004L pH 4.01 Buffer Solution, 500 mL
HI 7006M pH 6.86 Buffer Solution, 230 mL
HI 7006L pH 6.86 Buffer Solution, 500 mL
HI 70007P pH 7.01 Buffer Sachets, 25 x 20 mL
HI 7007M pH 7.01 Buffer Solution, 230 mL
HI 7007L pH 7.01 Buffer Solution, 500 mL
HI 7009M pH 9.18 Buffer Solution, 230 mL
HI 7009L pH 9.18 Buffer Solution, 500 mL
HI 70010P pH 10.01 Buffer Sachets, 25 x 20 mL
HI 7010M pH 10.01 Buffer Solution, 230 mL
HI 7010L pH 10.01 Buffer Solution, 500 mL
pH CALIBRATION SOLUTIONS IN FDA APPROVED
BOTTLE
HI 8004L pH 4.01 Buffer Solution, 500 mL
HI 8006L pH 6.86 Buffer Solution, 500 mL
HI 8007L pH 7.01 Buffer Solution, 500 mL
HI 8009L pH 9.18 Buffer Solution, 500 mL
HI 8010L pH 10.01 Buffer Solution, 500 mL
ELECTRODE STORAGE SOLUTIONS
HI 70300M Storage Solution, 230 mL
HI 70300L Storage Solution, 460 mL
ELECTRODE STORAGE SOLUTIONS IN FDA APPROVED
BOTTLE
HI 80300M Storage Solution, 230 mL
HI 80300L Storage Solution, 460 mL
12
ELECTRODE CLEANING SOLUTIONS
HI 70000P Electrode Rinsing Sachets, 25 x 20 mL
HI 7061M General Cleaning Solution, 230 mL
HI 7061L General Cleaning Solution, 460 mL
HI 7073M Protein Cleaning Solution, 230 mL
HI 7073L Protein Cleaning Solution, 460 mL
45
DISPLAY CODE GUIDE
HI 8014, HI 8314, HI 8424, HI 8915, HI 9214 AND
HI 9622
°C Symbol indicates the meter is in temperature mode. A flashing
°C symbol in HI 8424 and HI 9622 means that the temperature probe is not connected or the cable is damaged
pH Symbol indicates the meter is in pH mode.
HI 8014, HI 8314, HI 8424, HI 8915 AND HI 9622
mV Symbol indicates the meter is in mV mode.
HI 8424
E1 Out of range in pH scale
E2 Out of range in °C scale
E3 Out of range in mV scale
E4 Erroneous buffer solution used for offset calibration or out of order
electrode
E5 Erroneous buffer solution used for slope calibration or out of order
electrode
HI 8915
S Symbol to indicate the display is frozen (Hold function).
HI 9214 AND HI 931000
∆∆
∆ Stability indicator
∆∆
Ec Wrong buffer: Change the buffer solution;
Unfit electrode: Clean and condition the electrode.
Eb Low battery: Replace the battery.
Er Over-Range: Dry electrode, repeat conditioning.
HI 9622
pH---- Out of range in pH scale
mV---- Out of range in mV scale
Er-7 Erroneous pH 7 buffer solution used for offset calibration or
out of order electrode
Er-4 Erroneous pH 4 buffer solution used for slope calibration or
out of order electrode
Er-10 Erroneous pH 10 buffer solution used for slope calibration or
out of order electrode
BAT Low battery
FUNCTIONAL DESCRIPTION HI 8424
1) BNC socket for combination pH or ORP electrodes.
2) Liquid Crystal display (LCD).
3) RANGE to select the pH, °C or mV range.
4) UP arrow to set temperature manually when temperature
probe is disconnected.
5) CAL to enter calibration mode.
6) Phono plug socket for temperature probe HI 7669AW.
7) ON/OFF to switch the instrument on or off.
8) DOWN arrow to set temperature manually when
temperature probe is disconnected.
9) CFM to confirm calibration data.
44
13
SPECIFICATIONS HI 8424
BATTERY REPLACEMENT
HI 8424
Range pH 0.00 to 14.00
mV ±399.9 mV
±400 to ±1999 mV
°C 0.0 to 100.0
Resolution pH 0.01
mV 0.1mV / 1mV
°C 0.1
Accuracy pH ±0.01
(@20°C/68°F) mV ±0.2mV / ±1mV
°C ±0.4
Typical EMC pH ±0.02
Deviation mV ±0.2 / ±1
°C ±0.4
pH Calibration Automatic 2 point with
3 memorized standard buffers
(pH 7.01, 4.01 or 10.01)
Offset Calibration ±1.0 pH
Slope Calibration from 70 to 108%
Temperature Automatic from 0 to 100°C (32 to 212°F)
Compensation or manual without temperature probe
Electrode HI 1230B combination, double-junction,
gel pH electrode with BNC connector
and 1 m (3.3') cable (included)
Temperature HI 7669AW (included)
Probe
Input Impedance 1012 ohm
Battery Type 1 x 9 volt
Life 100 hours of continuous use
Environment 0 to 50°C (32 to 122°F);
max 95% RH non-condensing
Dimensions 185 x 82 x 45 mm
(7.3 x 3.2 x 1.8")
Weight 520 g (1.1 lb.)
All meters are powered by a 9V battery that is located on the rear of
the instrument.
The meters provide the following, when the battery becomes weak:
- HI 8014, reaching a certain minimum threshold, automatically
switches the LCD off.
- HI 8314, HI 8915, HI 8424 display a blink-
ing additional decimal point on the bottom
left hand side of the LCD.
- HI 9214 and HI 931000 display "Eb".
- HI 9622 displays "BAT" on the bottom left
hand side of the LCD.
pH
BAT
When the low battery indicator appears only a few hours of battery
life is remaining. It is recommended that the battery be replaced
immediately, since a low battery may also result in loss of calibration
data or unreliable measurements.
Replacement must only take place in a non-hazardous area using an
alkaline 9V battery.
To access the battery, remove the battery cover by applying pressure
in the direction indicated below. Replace the old battery with a new
one, while paying attention to its polarity.
Note: The instrument should be recalibrated after changing the
battery.
HI 8014 - HI 8314
HI 8424 - HI 8915
HI 9622
HI 8014
HI 8314
HI 8424
HI 8915
HI 9214
HI 8114
HI 8414
HI 9214
HI 931000
9 VOLT BATTERY
SLIDE
14
BATTERY
43
Note: For field applications, it is always recommended to keep a
spare electrode handy. When anomalies are not resolved with
a simple maintenance, change the electrode (and recalibrate
the meter) to see if the problem is alleviated.
FUNCTIONAL DESCRIPTION HI 931000
1
s
ins rum n
2
ON
OFF
3
TAKING REDOX MEASUREMENTS
HI 8014, HI 8314, HI 8424, HI 8915 and HI 9622 have the capa-
bility to take ORP measurements. An optional ORP electrode must be
used to perform these measurements.
Oxidation-reduction potential (REDOX) measurements provide the
quantification of the oxidizing or reducing power of the sample tested.
To correctly perform a redox measurement, the surface of the ORP
electrode must be clean and smooth.
When not in use, the tip of the electrode should be kept moist and
safe from any mechanical stress which might cause damage to the
glass/platinum junction.
°C
4
5
CAL
CFM
HI 931000
6
1) DIN socket for combination pH/°C electrode.
2) Liquid Crystal Display (LCD).
3) ON/OFF to switch the instrument on or off.
4) °C to display the measured temperature (press and hold).
5) CAL to enter calibration mode.
6) CFM to confirm calibration data.
42
15
SPECIFICATIONS HI 931000
HI 931000
Range pH 0.00 to 14.00
°C 0.0 to 70.0
Resolution pH 0.01
°C 0.1
Accuracy pH ±0.01
(@20°C/68°F) °C ±0.5
Typical EMC pH ±0.30
Deviation °C ±1
pH Calibration Automatic 2 point with
3 memorized standard buffers
(pH 7.01, 4.01, 10.01)
Temperature Automatic from 0 to 70°C
Compensation (32 to 158°F)
Electrode HI 1217D combination 4-in-1 gel
pH electrode with built-in temperature
sensor and amplifier (included)
Battery Type 1 x 9 volt
Life 300 hours of continuous use
Auto-off after 8 minutes of non-use
Environment 0 to 50°C (32 to 122°F);
max 95% RH non-condensing
Dimensions 143 x 80 x 38 mm
(5.6 x 3.2 x 1.5")
Weight 360 g (12.7 oz.)
16
CLEANING PROCEDURE
General Soak in Hanna HI 7061 General Cleaning Solu-
tion for approximately ½ hour.
Removal of films, dirt or deposits on the membrane/junction:
Protein Soak in Hanna HI 7073 Protein Cleaning Solu-
tion for 15 minutes.
Inorganic Soak in Hanna HI 7074 Inorganic Cleaning
Solution for 15 minutes.
Oil /grease Rinse with Hanna HI 7077 Oil and Fat Cleaning
Solution.
IMPORTANT: After performing any of the cleaning procedures rinse
the electrode thoroughly with distilled water, drain and refill the
reference chamber with fresh electrolyte, (not necessary for gel-filled
electrodes) and soak the electrode in HI 70300 Storage Solution for
at least 1 hour before taking a measurement.
TROUBLESHOOTING
Evaluate your electrode performance based on the following.
• Noise (Readings fluctuate up and down) could be due to:
- Clogged/Dirty Junction: Refer to the Cleaning Procedure
above.
- Loss of shielding due to low electrolyte level (in refillable
electrodes only): refill with HI 7071 for single junction or
HI 7082 for double junction electrodes.
• Dry Membrane/Junction: Soak in Storage Solution HI 70300
for at least 1 hour.
• Drifting: Soak the electrode tip in warm Hanna Solution
HI 7082 for one hour and rinse tip with distilled water (refill with
fresh HI 7071 for single junction electrodes and HI 7082 for
double junction electrodes if necessary).
• Low Slope: Refer to the cleaning procedure above.
• No Slope: - Check the electrode for cracks in glass stem or
bulb (replace the electrode if cracks are found).
- Make sure cable and connections are not damaged nor lying in a pool of water or solution.
• Slow Response/Excessive Drift: Soak the tip in Hanna Solu-
tion HI 7061 for 30 minutes, rinse thoroughly in distilled water
and then follow the Cleaning Procedure above.
• For ORP Electrodes: polish the metal tip with a lightly
abrasive paper (paying attention not to scratch the surface) and
wash thoroughly with water.
41
If the bulb and/or junction are dry, soak the electrode in HI 70300
Storage Solution for at least one hour.
For refillable electrodes:
If the refill solution (electrolyte) is more than 2½ cm (1") below the fill
hole, add HI 7082 3.5M KCl Electrolyte Solution for double junction or
HI 7071 3.5M KCl+AgCl Electrolyte Solution for single junction
electrodes.
For AmpHel® electrodes:
If the electrode does not respond to pH changes, the battery is run
down and the electrode should be replaced.
TEST MEASUREMENT
Rinse the electrode tip with distilled water.
Immerse the tip (bottom 4 cm / 1½") in the sample and stir gently
for approx. 30 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
your measurements.
STORAGE
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.
When not in use, replace the solution in the protective cap with a few
drops of HI 70300 Storage Solution or, in its absence, HI 7007
pH 7.01 Buffer Solution.
Follow the Preparation Procedure above before taking measurements.
Note: NEVER STORE THE ELECTRODE IN DISTILLED OR DEIONIZED
WATER.
PERIODIC MAINTENANCE
Inspect the electrode and the cable. The cable used for the connection
to the meter 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:
Refill the electrode with fresh electrolyte (HI 7071 for single junction or
HI 7082 for double junction electrodes). Allow the electrode to stand
upright for 1 hour. Follow the Storage Procedure above.
AmpHel® is a registered Trademark of "Hanna Instruments"
40
FUNCTIONAL DESCRIPTION HI 9622
1) BNC socket for combination pH or ORP electrode.
2) Liquid Crystal display (LCD).
3) RANGE to select the pH, °C or mV range.
4) UP arrow to set the month and day for calibration data
recall and the temperature for manual compensation (when
temperature probe is disconnected).
5) CAL to enter calibration mode.
6) Socket for temperature probe HI 7669/2W.
7) ON/OFF to switch the instrument on or off.
8) DOWN arrow to set the month and day for calibration data
recall and the temperature for manual compensation (when
temperature probe is disconnected).
9) CFM to confirm calibration data.
17
SPECIFICATIONS HI 9622
HI 9622
Range pH 0.00 to 14.00
ISE ±399.9 mV
ORP ±400 to ±1999 mV
°C 0.0 to 100.0
Resolution pH 0.01
ISE 0.1mV
ORP 1mV
°C 0.1
Accuracy pH ±0.01
(@20°C/68°F) ISE ±0.2mV
ORP ±1mV
°C ±0.4
Typical EMC pH ±0.01
Deviation ISE ±0.2mV
ORP ±1mV
°C ±0.5
pH Calibration Automatic 2 point with
3 memorized standard buffers
(pH 7.01, 4.01 or 10.01)
Offset Calibration ±1.0 pH
Slope Calibration from 70 to 108%
Temperature Automatic from 0 to 100°C (32 to 212°F)
Compensation or manual without temperature probe
Electrode HI 1230B combination gel pH electrode
BNC and 1 m (3.3') cable (included)
Temperature HI 7669/2W (included)
Probe
Input Impedance 1012 ohm
Battery Type 1 x 9 volt
Life 100 hours of continuous use
Environment 0 to 50°C (32 to 122°F);
max 95% RH non-condensing
Dimensions 185 x 82 x 45 mm
(7.3 x 3.2 x 1.8")
Weight 520 g (1.1 lb.)
18
ELECTRODE CONDITIONING AND
MAINTENANCE
* Only available with refillable electrodes.
PREPARATION
Remove the 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.
39
TOP VIEW
BNC
electrode
connector
ins
e
rum ns
ON
OFF
CAL
CFM
pH
HI 9214 stick pHmeter
SYMPTOMS PROBLEM SOLUTION
For HI 8424 only
Display shows "E5"
For HI 9622 only
Display shows "pH----"
Display shows "°C"
blinking
Display shows "mV----"
Display shows "Er-7"
Display shows "Er-4"
Display shows "Er-10"
For HI9214 & HI 931000 only
Ec
Eb
Er
Erroneous buffer solution used for slope
calibration
An out of order pH
electrode
Out of range- pH
scale
No temperature
probe attached
Out of range- mV
scale
Erroneous pH 7 buffer
solution used for offset calibration
An out of order pH
electrode
Erroneous pH 4 buffer
solution used for
slope calibration
An out of order pH
electrode
Erroneous pH 10
buffer solution used
for slope calibration
An out of order pH
electrode
Wrong buffer
Unfit electrode
Low battery
Over-Range
Dry electrode
38
Use fresh buffer solution
Replace the electrode
a) Check the calibration
b) Ensure that the pH value
is between 0 and 14
c) Check the level of electrolyte
and the state of the electrode
itself
Make sure the temperature
probe is attached properly
Make sure the mV value is
within ±1999
Use fresh pH 7 buffer solution
Replace the electrode
Use fresh pH 4 buffer solution
Replace the electrode
Use fresh pH 10 buffer solution
Replace the electrode
Change the buffer solution.
Clean, condition and if neces-
sary change the electrode.
Replace the battery.
Repeat conditioning.
OPERATIONAL GUIDE
INITIAL PREPARATION
Each meter is supplied complete with a 9V battery. Slide off the
battery compartment cover on the back of the meter (see page 43),
install the battery while paying attention to its polarity.
Always remove the electrode protective cap before taking any measurements. If the electrode has been left dry, soak the tip (bottom
4 cm/1½") in a pH 7 or pH 4 buffer solution for a few hours or
overnight to reactivate it.
For HI 8014:
Connect the pH electrode to the BNC socket on the top of the meter.
Turn the meter on by turning the rotary knob to the °C, pH or mV
position.
For HI 8314, HI 8915, HI 8424 and HI 9622:
Connect the pH electrode to the BNC socket on
the top of the instrument. Connect the temperature probe to the other socket. The
temperature probe can be used independently
to take temperature measurements, or it can
be used in conjunction with the pH electrode to
utilize the meter's ATC capability. With HI 8424
and HI 9622, when the probe is disconnected,
temperature can also be set manually (see
page 22).
Turn the meter on by pressing ON/OFF.
With HI 9622, the display will show the
previous calibration date (month & date) for 3
seconds.
For HI 9214:
Connect the pH electrode to the screw connector on the meter. Be sure
that the electrode and the meter connections are clean and dry to
ensure a positive contact. Turn the meter on pressing ON/OFF.
19
OFF
pH
°C
mV
ON
OFF
month day
CAL
ON
OFF
For HI 931000:
Attach the pH/°C electrode to the DIN socket on the top of the meter,
tighten the retainer ring and turn the meter on by pressing ON/OFF.
ins
rum n s
pH
ON
OFF
°C
CAL
CFM
HI 931000
TAKING pH MEASUREMENTS
ON
OFF
C
°
For HI 8014:
To take a pH measurement simply submerge
the tip (4cm/1½") of the electrode and a
ChecktempC (or an accurate thermometer) in
(1½
")
the sample to be tested.
pH
Turn the rotary knob to the °C position to
°C
OFF
mV
display temperature setting on the LCD.
Using the provided screwdriver, turn the tem-
perature trimmer to display the temperature
measured by ChecktempC (or an accurate thermometer), e.g. 25°C..
ºC
°C
°C
Turn the rotary knob to the pH position to
display the pH measurement.
OFF
pH
mV
Shake the electrode briefly and allow a couple
of minutes for the electrode to adjust and
stabilize. The display will show the pH value
compensated for the manually adjusted temperature.
pH
For HI 8314, HI 8424, HI 8915 and HI 9622:
To take a pH measurement simply submerge
the tip (4cm/1½") of the electrode and the
temperature probe in the sample to be tested.
(1½
")
4 cm
4 cm
TROUBLESHOOTING GUIDE
SYMPTOMS PROBLEM SOLUTION
The meter fails to calibrate or gives faulty
readings
The meter is slow in
responding or gives
faulty readouts
The meter does not
accept the 2nd buffer
solution
The reading drifts
The meter does not
work with the temperature probe
For HI 8424 only
Display shows "E1"
Display shows "E2"
Display shows "E3"
Display shows "E4"
Erroneous buffer solution used for
calibration.
An out of order pH
electrode
The electrode is not
working or the reference junction is
clogged
Erroneous buffer solution used for slope
calibration
An out of order pH
electrode
A clogged or an out
of order pH electrode
An out of order probe
Out of range- pH
scale
Out of range- °C
scale
Out of range- mV
scale
Erroneous buffer solution used for offset
calibration
An out of order pH
electrode
Check the buffer solution and
replace it if necessary
Replace the pH electrode
Leave the electrode in a storage solution after cleaning the
junction. If problem persists,
replace the electrode
Check the buffer solution and
replace it if necessary
Follow the cleaning procedure.
If this doesn't work replace
the electrode
Follow the cleaning procedure
and replace the pH electrode
if necessary
Replace the probe.
a) Check the calibration
b) Ensure that the pH value
is between 0 and 14
c) Check the level of electrolyte
and the state of the electrode
itself
Make sure the temperature
value is within 0 and 100°C
Make sure the mV value is
within ±1999
Make sure the buffer solution
used is pH 7 and replace it if
necessary
Replace the pH electrode
20
37
TEMPERATURE CALIBRATION
HI 8314, HI 8915, HI 8424, HI 9214, HI 931000 and HI 9622
have been accurately precalibrated for temperature at the factory.
For optimum accuracy, it is recommended that you have your pH
meter recalibrated for temperature at least once a year.
Contact your Dealer or the nearest Hanna Customer Service Center for
more information.
mV OUTPUT
It is possible to attach the HI 8915 to a recorder or plotter using the
mV output sockets.
pH, mV and °C readings can be transmitted through the output
sockets at a voltage that proportionally matches the displayed value.
For example, when the meter reads 2.00, 7.00 or 12.00 pH, it emits
a 200, 700 or 1200 mV signal, respectively.
This makes it unnecessary to use conversion tables and charts.
The output signals for the three measurement ranges of the meter are
100 mV for every pH unit, 1mV for every mV unit and 10 mV for
every degree centigrade.
For HI 9214 and HI 931000: Simply submerge the tip (4cm/1½") of the combination
pH/temperature electrode in the sample.
(1½
")
Turn the instrument ON. Select the pH mode
(HI 8314 and HI 8915 only) or press the
RANGE key until the display changes to pH
pH
(HI 8424 and HI 9622 only).
Shake the electrode briefly and allow a couple
RANGE
of minutes for the reading to stabilize. The
display will show the pH value compensated
for temperature.
For HI 9214 and HI 931000:
After submerging the electrode in the sample,
wait until the stability indicator "∆" stops
blinking. The pH readout is also temperature
compensated.
In order to take accurate pH measurements, make sure that the
instrument is calibrated for pH before use (see page 25).
For a faster response time when using refillable electrodes,
unscrew the refill hole cap.
If measurements are taken in different samples successively, it is
recommended to rinse clean the electrode thoroughly in between
samples to eliminate cross-contamination. After cleaning, rinse the
electrode with some of the sample to be measured.
4 cm
∆
36
TEMPERATURE COMPENSATION
The pH reading is directly affected by temperature. In order for the
meter to measure the pH accurately temperature must be taken into
consideration.
HI 9214 and HI 931000 use an electrode with a built-in temperature sensor and therefore no additional temperature probe is needed.
To use the Automatic Temperature Compensation feature of HI 8314,
HI 8424, HI 8915 and HI 9622, submerge the temperature probe
into the sample as close to the electrode as possible and wait for a
couple of minutes. The displayed pH reading is compensated for the
temperature variance.
If you know the temperature of the sample you can also manually
21
compensate for it (HI 8424 and HI 9622 only). In this case, the
temperature probe must be disconnected. HI 8014 provides only for
manual compensation.
With HI 8314 and HI 8915 when the temperature probe is disconnected, the pH reading will be compensated at 25°C. If a different
compensation is required, reattach the probe.
MANUAL TEMPERATURE COMPENSATION FOR HI 8424
C
& HI 9622
°
If the temperature probe is out if order or if
temperature is to be set manually, unplug
the probe and record the temperature of the
sample with a ChecktempC or an accurate
thermometer.
• Press RANGE to select temperature mode.
RANGE
The "°C" symbol will blink to indicate that
the temperature probe is not connected.
• Press the UP and DOWN arrow keys to display and set the
sample temperature (e.g. 25.0°C).
ºC
• Press RANGE to select the pH measurement mode and immerse
the pH electrode into the solution. The displayed pH reading will
be temperature compensated (in this case at 25°C).
RANGE
pH
ORP MEASUREMENTS (HI 8014, HI 8314, HI 8424,
HI 8915 AND HI 9622)
Connect an ORP electrode to the BNC socket on the top of the meter.
To enter the "mV" mode (ORP Oxidation Re-
duction Potential) turn the instrument ON and
select the mV mode (HI 8014, HI 8314 and
HI 8915) or press the RANGE key until the
display changes to mV (HI 8424 and
HI 9622).
22
mV
RANGE
°C
OFF
• Use the UP and DOWN keys to set the temperature manually to
the above value.
ºC
• Follow the rest of the calibration procedure as described previously
(see page 32).
pH VALUES AT VARIOUS
TEMPERATURES
For manual temperature compensation during calibration (HI 8014,
HI 8424 and HI 9622), please refer to the following chart.
TEMP pH VALUES
°C °F 4.01 6.86 7.01 9.18 10.01
0
32
4.01
6.98
7.13
9.46
10.32
5
41
4.00
6.95
7.10
9.39
10.24
10
50
4.00
6.92
7.07
9.33
10.18
15
59
4.00
6.90
7.04
9.27
10.12
20
68
4.00
6.88
7.03
9.22
10.06
25
77
4.01
6.86
7.01
9.18
10.01
30
86
4.02
6.85
7.00
9.14
9.96
35
95
4.03
6.84
6.99
9.10
9.92
40
104
4.04
6.84
6.98
9.07
9.88
45
113
4.05
6.83
6.98
9.04
9.85
50
122
4.06
6.83
6.98
9.01
9.82
55
131
4.07
6.84
6.98
8.99
9.79
60
140
4.09
6.84
6.98
8.97
9.77
65
149
4.11
6.85
6.99
8.95
9.76
70
158
4.12
6.85
6.99
8.93
9.75
For instance, if the buffer temperature is 25°C, the display should
show pH 4.01 or 7.01 or 10.01. With the temperature at 20°C, the
pH
mV
display should show pH 4.00 or 7.03 or 10.06. Likewise, at 50°C,
the display should show pH 4.06 or 6.98 or 9.82.
35
• The meter will request pH 4.01 or 10.01
buffer by showing "Er-4". This indicates
pH
CAL
that the instrument is ready for the second
point calibration
Note: Only by pressing CFM, offset calibration and the date are
memorized.
• Rinse the electrode and temperature probe before immersing
them in a pH 4.01 or pH 10.01 calibration buffer. Stir gently
and wait a couple of minutes for thermal equilibrium. The display
will show the value of the temperature compensated buffer
solution.
pH
CAL
HI 7004
• When "CAL" disappears and the meter displays "CFM" press CFM
to confirm the slope calibration.
pH
CFM
CFM
The instrument is now calibrated and will remain calibrated even
when it is turned off.
Note: The meter will lose calibration if the battery is removed.
If for some reason the temperature probe is out of order, or a manual
temperature compensation is required, follow the procedure below:
• Make sure the temperature probe is detached.
• Press RANGE to select the temperature
mode.
RANGE
• Place the tip of the pH electrode into the
pH 7.01 buffer and stir gently. Wait a
couple of minutes for thermal equilibrium.
• Note the temperature of the buffer with a
°C
ChecktempC (or an accurate thermometer),
e.g. 20.0°C.
To measure the mV of a sample submerge
the ORP electrode tip (4 cm/1½") in the
sample to be tested.
Allow a few minutes for the readings to
stabilize. Also, see page 42 for more informa-
(1½
")
tion about REDOX measurements.
Note (for HI 8424 and HI 9622): the
resolution is 0.1 mV for values within the
mV
±400mV range.
TAKING TEMPERATURE MEASUREMENTS (EXCEPT
HI 8014)
Turn the instrument ON and press °C (HI 8314 and HI 8915) or
RANGE (HI 8424 and HI 9622).
ON
OFF
Make sure the temperature probe (for HI 8314,
HI 8915, HI 8424 and HI 9622) or pH/°C
electrode (for HI 9214 and HI 931000) is connected to the meter.
Dip the temperature probe or the pH/°C electrode into the sample and allow the reading to
stabilize (a couple of minutes).
For HI 9214: To display the measured temperature, press and hold the °C button on the top of the meter.
When the button is released, the display will return to the pH
reading.
H
I 9
ºC
For HI 931000: To display the measured temperature, press and hold the °C key. When the
key is released, the display will return to the
pH reading.
°C
2
1
4
s
tic
k
p
H
m
e
te
r
ON
C
A
L
C
F
M
OFF
ru
m
n
s
ins
e
RANGE
°C
4 cm
34
23
HOLD FUNCTION (HI 8915 ONLY)
The hold function is activated by the HOLD key. The measured value
is frozen on the display when this key is pressed. "S" symbol will
appear on the display to indicate the holding (storage) mode.
Press the HOLD key again to return to regular operational mode.
• Press RANGE to display pH measurement.
RANGE
• Press CAL to start calibration and to display the last calibration
date again.
HOLD
S
pH
AFTER MEASUREMENTS
After measurements switch the instrument off to save the battery.
For HI 9214: when not in use, disconnect the electrode from the
meter and cover the threaded connector with the supplied protective
cap.
ON
OFF
ON
OFF
°C
pH
OFF
mV
CAL
month day
CAL
Note: If you want to retain the older calibration date, simply press
the CFM key twice to bypass the month and day entry.
• Using the UP and DOWN keys, enter the month while the
"month" symbol and the two left digits blink.
month day
CAL
• Press CFM.
CFM
• The "day" symbol and the two right digits will start blinking.
Using the UP and DOWN keys, enter the day.
month day
CAL
• Press CFM to enter the new calibration date. The meter will
request pH 7.01 buffer value and the display will show:
24
CFM
If "Er-7" appears, the calibration solution is
wrong or is out of specifications and needs
to be replaced.
• When "CAL" disappears and the meter
displays "CFM", press CFM to confirm the
offset calibration.
33
pH
CAL
pH
CAL
CFM
• If the ON/OFF key is pressed at this point, the calibration process
will end with only the offset (one-point) calibration. For best
accuracy, however, it is recommended that a two-point calibration is performed.
• The LCD will now blink "4.01 ∆". pH 10.01
can be selected by pressing the CAL key.
• Rinse with pH 4.01 (or pH 10.01) buffer
solution (2nd calibration point).
• Dip the electrode into a pH 4.01 (or
pH 10.01) buffer solution.
HI 7004
• Stir gently and wait until the stability
indicator "∆" stops flashing.
• Press CFM to confirm the second buffer
CFM
solution.
The meter is now calibrated and will return to
operational mode.
pH CALIBRATION
For best accuracy, frequent calibration of the instrument is recommended. The instrument should be recalibrated for pH:
∆
∆
a) Whenever the pH electrode or temperature probe is replaced.
b) At least once a month.
c) After testing aggressive chemicals.
d) Whenever the battery has been replaced.
e) Where greater accuracy is required.
4
0
PREPARATION
0
I 7
H
Pour small quantities of pH 7.01 (HI 7007 or
HI 8007) and pH 4.01 (HI 7004 or HI 8004)
HI 7004 HI 7007HI 7004 HI 7007
solution into two clean beakers.
For accurate calibration use two beakers for each buffer solution, the
first one for rinsing the tip of the electrode, the second one for
calibration. This way, contamination of the buffers is minimized.
RINSE
HI 7007
CALIBRATION
HI 7007
PROCEDURE FOR HI 9622
• Switch the meter on after connecting the pH electrode and the
temperature probe and the meter will display the previous
calibration date (month & day) for 3 seconds.
ON
OFF
• Remove the protective cap from the electrode, rinse the tip of the electrode with
some pH 7.01 solution, then immerse the
pH electrode and temperature probe in
the pH 7.01 buffer solution. Stir gently
and wait a couple of minutes for thermal
equilibrium.
Note: The electrode should be submerged
approximately 4 cm (1½") in the solution. The temperature probe should be
close to the pH electrode.
32
month day
CAL
HI 7007
(1½
4 cm
")
To obtain accurate readings, use pH 7.01 (HI 7007 or HI 8007) and
pH 4.01 (HI 7004 or HI 8004) if you are going to measure acidic
samples or pH 7.01 (HI 7007 or HI 8007) and pH 10.01 (HI 7010
or HI 8010) for alkaline measurements.
If you need to calibrate HI 8014, HI 8314 and HI 8915 to NBS
standards, use pH 6.86 (HI 7006 or HI 8006) instead of pH 7.01
and pH 9.18 (HI 7009 or HI 8009) instead of pH 10.01.
PROCEDURE FOR HI 8014
°C
• Remove the protective cap from the electrode, rinse and immerse it in pH 7.01
buffer and stir gently. Wait a couple of
minutes for the reading to stabilize.
HI 7007
Note: the electrode should be submerged ap-
proximately 4 cm (1½") into the solution.
A ChecktempC should be located close to
(1½
the pH electrode.
• Take the temperature of the buffer solution
4 cm
")
with a ChecktempC (or an accurate ther-
25
pH
OFF
°C
mV
mometer), e.g. 20°C.
• Set the rotary knob to °C to display the
manual temperature setting.
• Adjust the °C trimmer until the LCD shows the measured temperature.
• Rinse the pH electrode with some pH 4.01
or 10.01 buffer solution (2nd calibration
point).
• Dip the electrode into the pH 4.01 (or
pH 10.01) buffer solution.
HI 7004
HI 9214 stick pHmeter
M
F
C
s
n
e
AL
m
u
C
r
s
in
F
N
F
O
O
°C
ºC
°C
pH
OFF
mV
• Set the rotary knob to pH to display pH
measurement and wait for the reading
to stabilize.
• Adjust the AP trimmer with a small screwdriver until the LCD
shows the pH value at the above temperature (see the pH versus
temperature chart on page 35).
pH
A
P
C
°
• Rinse and immerse the pH electrode in
pH 4.01 or pH 10.01 buffer (2nd calibration point) and stir gently.
HI 7004
• Wait a couple of minutes and adjust the mV/pH trimmer until
the LCD shows the pH value at the noted temperature (see
page 35 for pH versus temperature chart).
pH
mV/pH
The pH calibration is now complete.
• Stir gently and wait until the stability
indicator "∆" stops flashing.
• Press CFM to confirm the acceptance of
the second buffer solution.
pH calibration is now complete and the meter
returns to the measurement mode.
PROCEDURE FOR HI 931000
• Turn the meter on.
Note: The stability indicator "∆" blinks when
the electrode reading is unstable.
• Press CAL and the display will flash
"7.01 ∆".
CAL
• Remove the protective cap from the electrode, rinse the tip of the electrode with
some pH 7.01 solution, then immerse it
in a pH 7.01 buffer solution. Stir gently
and wait a couple of minutes for thermal
equilibrium.
Note: The electrode should be submerged
approximately 4 cm (1½") in the
solution.
ON
OFF
∆
HI 7007
CFM
(1½
")
∆
4 cm
PROCEDURE FOR HI 8314 & HI 8915
• Switch the meter on after connecting the
pH electrode and the temperature probe.
26
ON
OFF
• When electrode has stabilized, the sta-
bility indicator "∆" stops flashing.
• Press CFM to confirm the first buffer solution.
31
∆
CFM
PROCEDURE FOR HI 9214:
• Turn the meter on.
Note: The stability indicator "∆" blinks when
the electrode is not immersed in the
solution.
• Remove the protective cap from the pH/°C
electrode. Rinse the tip of the electrode
with some pH 7.01 solution, then immerse
it in a pH 7.01 buffer solution. Stir gently
and wait a couple of minutes for the
reading to stabilize.
Note: The electrode should be submerged
approximately 4 cm (1½") in the solution.
• Press CAL. The display will flash "7.01 ∆".
CAL
• Remove the protective cap from the elec-
ON
OFF
trode, rinse the tip of the electrode with
some pH 7.01 solution, then immerse the
pH electrode and temperature probe in a
M
F
HI 9214 stick pHmeter
C
s
n
e
m
u
CAL
r
s
in
F
N
F
O
O
pH 7.01 buffer solution. Stir gently and
wait a couple of minutes for thermal equilibrium.
HI 7007
Note: the electrode should be submerged ap-
HI 7007
proximately 4 cm (1½") into the solution.
The temperature probe should be located close to the pH electrode.
M
F
C
s
n
e
L
m
u
A
r
C
ins
ON
OFF
r
e
t
e
m
H
p
k
ic
t
s
4
1
2
9
I
H
(1½
4 cm
")
• Press °C to display the temperature of the buffer (e.g. 20.0°C).
°C
ºC
• Press the pH key to read pH values. Stir
pH
(1½
")
4 cm
gently and wait for a couple of minutes.
• Adjust the STD trimmer (for HI 8314) or OFFSET trimmer (for
HI 8915) on the lower left of the front panel until LCD shows the
∆
pH value at the noted temperature (see the pH versus temperature chart on page 35).
• Wait until the stability indicator "∆" stops
flashing.
• Press CFM to confirm the first buffer solu-
CFM
tion.
• If the ON/OFF key is pressed at this point, the calibration process
will end with only the offset (one-point) calibration. For best
accuracy, however, it is recommended that two-point calibration
is performed.
• The LCD will now flash "4.01 ∆". If the
CAL key is pressed, the slope calibration
will change to "10.01 ∆".
30
∆
OFFSET
• Rinse and immerse the pH electrode in
pH 4.01 or pH 10.01 buffer (2nd calibration point) and stir gently.
pH
HI 7004
• Wait a couple of minutes and adjust the SLOPE trimmer on the
lower right of the front panel until the LCD shows the pH value
at the noted temperature.
∆
SLOPE
pH
The pH calibration is now complete.
27
PROCEDURE FOR HI 8424
• Switch the meter on after connecting the
ON
OFF
pH electrode and the temperature probe.
• Remove the protective cap from the electrode, rinse the tip of the electrode with
some pH 7.01 solution, then immerse the
pH electrode and temperature probe into
a pH 7.01 buffer solution. Stir gently and
HI 7007
wait a couple of minutes for thermal equilibrium.
Note: The electrode should be submerged
approximately 4 cm (1½") in the solution. The temperature probe should be
(1½
")
4 cm
close to the pH electrode.
• Press RANGE to display pH measurement.
RANGE
• Press CAL. A temperature compensated buffer value together with
the pH symbol will be displayed, e.g. if the temperature is 25°C,
the display will show "pH 7.01". If the buffer temperature is
20°C, the display will show "pH 7.03" (see page 35).
• Rinse the electrode and temperature probe
before immersing them into pH 4.01 or
pH 10.01 calibration buffer. Stir gently
and wait for thermal equilibrium.
• The symbol "E5" should disappear and a
HI 7004
pH
temperature compensated buffer value starts
blinking.
• Wait until the pH symbol stops flashing.
• Press CFM to confirm the calibration.
pH
CFM
The instrument is now calibrated and will
remain calibrated even when it is turned off.
Note: The meter will lose the calibration if the battery is removed.
If for some reason the temperature probe is out of order, or a manual
temperature compensation is required, follow the procedure below:
• Make sure the temperature probe is de-
tached.
RANGE
• Press RANGE to select the temperature
mode.
CAL
pH
If "E4" appears, the calibration solution is
wrong or is out of specifications and needs
to be replaced.
• Wait until the "pH" symbol stops flashing
pH
which means that the reading is stable.
• Press CFM. The symbol "E5" will appear to indicate that offset
calibration is complete but the electrode is still in pH 7.01 buffer,
and the meter expects a pH 4.01 or 10.01 buffer.
CFM
28
• Place the pH electrode into the pH 7.01
buffer and shake it briefly. Wait a couple
of minutes for thermal equilibrium.
• Note the temperature of the buffer with a
HI 7007
°C
ChecktempC (or an accurate thermometer),
e.g. 20.0°C.
• Use the UP and DOWN arrow keys to adjust the temperature
manually to the above value.
ºC
• Follow the calibration procedure on the previous page.
29
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