Hanna Instruments HI 9125 Instruction Manual

1

Instruction Manual

HI 9124 HI 9125

Portable Waterproof

pH Meters

www.hannainst.com

28

SALES AND TECHNICAL SERVICE CONTACTS

Australia:

Tel. [phone] • Fax [phone]

China:

Tel. [phone] • Fax [phone]

Egypt:

Tel. & Fax [phone]

Germany:

Tel. [phone] • Fax [phone]

Greece:

Tel. [phone] • Fax [phone]

Indonesia:

Tel. [phone] • Fax [phone]

Japan:

Tel. [phone] • Fax [phone]

Korea:

Tel. [phone] • Fax [phone]

Malaysia:

Tel. [phone] • Fax [phone]

Singapore:

Tel. [phone] • Fax [phone]

South Africa:

Tel. [phone] • Fax [phone]

Taiwan:

Tel. [phone] • Fax [phone]

Thailand:

Tel. [phone] • Fax [phone]

United Kingdom:

Tel. [phone] • Fax [phone]

USA:

Tel. [phone] • Fax [phone]

For e-mail contacts and a complete list of Sales and
Technical offices, please see www.hannainst.com

.

MAN9125R2

02/08

2

WARRANTY

Dear Customer,
Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before using the instruments.
This manual will provide you with the necessary information for correct

use of the instruments, as well as a precise idea of their versatility.
If you need additional technical information, do not hesitate to e-mail

us at [e-mail] or turn to the back cover for our
worldwide contact list.

These instruments are in compliance with directives.

WARRANTYWARRANTY

WARRANTYWARRANTY

WARRANTY

HI 9124 & HI 9125 are guaranteed for two years against defects in
workmanship and materials when used for their intended purpose
and maintained according to instructions. Electrodes and probes are
guaranteed for six months. This warranty is limited to repair or
replacement free of charge.

Damage due to accidents, misuse, tampering or lack of prescribed
maintenance is not covered.

If service is required, contact the dealer from whom you purchased the
instruments. If under warranty, report the model number, date of
purchase, serial number and the nature of the problem. If the repair
is not covered by the warranty, you will be notified of the charges
incurred. If the instruments are to be returned to Hanna Instru­ments, first obtain a Returned Goods Authorization number from the
Technical Service department and then send it with shipping costs
prepaid. When shipping any instrument, make sure it is properly
packed for complete protection.

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

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

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

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

FUNCTIONAL DESCRIPTION ........................................................... 4

SPECIFICATIONS........................................................................... 5

OPERATIONAL GUIDE.................................................................... 6

pH CALIBRATION ......................................................................... 9

pH BUFFER TEMPERATURE DEPENDENCE ....................................... 12

SETUP MENU ............................................................................. 13

mV CALIBRATION (HI 9125 only) ................................................ 14

TEMPERATURE CALIBRATION ....................................................... 14

BATTERY REPLACEMENT ............................................................... 14

LCD MESSAGE GUIDE .................................................................. 17

TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS................ 18

ELECTRODE CONDITIONING & MAINTENANCE ................................ 19

TROUBLESHOOTING GUIDE ......................................................... 21

ACCESSORIES ............................................................................. 22

27

Hanna Instruments reserves the right to modify the design,

construction and appearance of its products without advance notice.

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

GENERAL DESCRIPTION

The HI 9124 and HI 9125 are state-of-the-art waterproof, heavy-
duty pH meters designed to provide laboratory results and accuracy
under harsh industrial conditions.

A large dual-level LCD, with clear indications related to the electrode
and instrument status, pH and temperature displayed simultaneously,
and user friendly graphic symbols during calibration.

The pH calibration procedure is automatic with 5 memorized buffers
(4.01, 6.86, 7.01, 9.18 and 10.01), buffer recognition and
automatic temperature compensation.

The HI 9125 can be used with ORP (Oxidation Reduction Potential)
electrodes. mV measurements automatically change from 0.1 to 1 mV
resolution when the reading reaches 700 mV.

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

Remove the instrument from the packing material and examine it to
make sure that no damage has occurred during shipping.

If there is any damage, notify your dealer or the nearest Hanna
Customer Service Center.

Each meter is supplied with:

• HI 1230B combination double-junction, gel pH electrode

• HI 7662 stainless steel temperature probe with 1 m (3.3’’) cable

• pH 4.01 & pH 7.01 buffer solutions, 20 mL sachet

• 100 mL plastic beaker

• 4 x 1.2 AAA rechargeable batteries (inside the instrument)

• HI 710044 inductive recharger with power adapter

• Instruction manual

• Rugged carrying case
Note: Save all packing material until you are sure that the instrument

functions correctly. All defective items must be returned in the
original packing with the supplied accessories.

26

OTHER ACCESSORIES

HI 710044 Inductive recharger
HI 721317 Rugged carrying case
HI 740157 Plastic electrode refilling pipet (20 pcs)
HI 76405 Electrode holder
HI 7662 Temperature probe with 1 m (3.3') screened cable
HI 8427 pH and ORP electrode simulator with 1 m (3.3')

coaxial cable ending in female BNC connectors

HI 931001 pH and ORP electrode simulator with LCD and 1 m

(3.3') coaxial cable ending in female BNC connectors

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 (PEI), gel-filled, combination platinum ORP electrode.
Use: general purpose.

HI 4430B

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

Consult the Hanna General Catalog for a complete and wide selection
of electrodes.

110 mm

4.3"

12 mm

0.5"

HI 1413

150 mm

5.9"

12 mm

0.5"

"S" VERSION

HI 3131

120 mm

4.7"

12 mm

0.5"

HI 3230

"S" VERSION

120 mm

4.7"

12 mm

0.5"

HI 4430

"S" VERSION

4

1) Temperature probe socket.

2) BNC electrode connector.

3) Liquid Crystal Display (LCD).

4) RANGE key, to select pH or mV (HI 9125 only).

5) ON/OFF key, to turn the meter ON and OFF.

6) CAL key, to enter or exit calibration mode.

7) SETUP/CFM key, to enter SETUP mode or to confirm calibration.

8) MR key, to recall stored value from memory.

9) MEM key, to store reading in memory.

10) S and T keys, for manual temperature setting, or selecting pH
buffer value.

11) Secondary display.

12) Primary display.

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

25

120 mm

4.7"

12 mm

0.5"

FC 100

75 mm

2.95"

6 mm

0.25"

FC 200

120 mm

4.7"

12 mm

0.5"

FC 210

120 mm

4.7"

12 mm

0.5"

9.5mm DIA

0.37"

FC 220

110 mm

4.3"

12 mm

0.5"

FC 911

FC 100B

Plastic-body (PVDF), double junction, refillable, combination pH elec-
trode.

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.

5

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

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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 (PEI), double junction, gel-filled, combination pH elec-
trode.

Use: general, field.

HI 2031B

Glass-body, semimicro, conic, refillable, combination pH electrode.
Use: semisolid products.

HI 1332B

Plastic-body (PEI), double junction, refillable, combination pH electrode.
Use: general purpose.

120 mm

4.7"

5mm

0.2"

5mm DIA

0.2"

"S" VERSION

HI 1330

120 mm

4.7"

12 mm

0.5"

"

"

HI 1230

75 mm

2.95"

6 mm

0.25"

"

"

HI 2031

120 mm

4.7"

12 mm

0.5"

"S" VERSION

HI 1332

210 mm

8.25"

8 mm

0.3"

7.5mm DIA

0.29"

"S" VERSION

HI 1331