Hanna Instruments PH 209V Manual de usuario

Instruction Manual

www.hannainst.com

pH 209V

Complete Laboratory Kit

for pH & ORP Measurements

in Wine, Must and Grape Juice

pH 209V is a complete laboratory kit for pH and ORP measurements in wine,

must and grape juice.

The kit also includes a special pH electrode (HI 1048B), which has been

designed for application in must and wine analysis, and a digital thermometer

(HI 98501) for measuring temperature and for using as reference during

manual temperature compensation procedure of pH readings.

The HI 1048B is a refillable pH electrode provided with a porous PTFE junction

sleeve, which ensures the right electrolyte flux, avoids clogging and allows

accurate pH measurements in “difficult” samples as must and wine.

This meter can be calibrated at 2 points, pH 7 and pH 3, and it is provided

with an easy manual temperature compensation.

The adjustable knobs are located on the front panel for easy operations.

GENERAL DESCRIPTION

PRELIMINARY EXAMINATION

Remove the kit 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.

The kit includes:

• pH 209 bench pH meter

• HI 1048B pH electrode

•HI 98501 electronic thermometer

• pH 3 and pH 7 buffer solutions (20 mL sachet each)

•HI 700635 and HI 700636 specific cleaning solutions (20 mL each)

•HI 7082 electrode refilling solution (30 mL bottle) and syringe

•HI 76404 electrode holder

•12 Vdc adapter and 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.

Dear Customer,

Thank you for choosing a Hanna Instruments product.

Please read this instruction manual carefully before using the instrument. This

manual will provide you with all the necessary information for the correct use of

the instrument, as well as a precise idea of its versatility in a wide range of

applications.

If you need additional technical information, do not hesitate to e-mail us at

[email protected].

This instrument is in compliance with the directives.

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

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

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

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

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

pH CALIBRATION ...................................................................................... 8

pH VALUES AT VARIOUS TEMPERATURES ................................................ 10

pH ELECTRODE MAINTENANCE ................................................................. 11

ACCESSORIES .......................................................................................... 15

WARRANTY ............................................................................................. 22

TABLE OF CONTENTS

FUNCTIONAL DESCRIPTION

Range 0.00 to 14.00 pH / ±1999 mV

Resolution 0.01 pH / 1 mV

Accuracy (@20°C) ±0.01 pH / ±1 mV

Typical EMC Deviation ±0.03 pH / ±2 mV

pH Calibration Manual, 2 point, through offset and slope knobs

Temperature Compensation

Manual, from 0 to 100°C (32 to 212°F)

pH Electrode (included)

HI 1048B glass body, double junction,

refillable, with BNC and 1 m (3.3') cable

Input Impedance 1012 ohm

Power Supply 12 Vdc adapter (included)

Environment 0 to 50°C (32 to 122°F);

RH max 95% non-condensing

Dimensions 240 x 182 x 74 mm (9.4x7.2x2.9")

Weight 1.0 kg (2.2 lb.) - meter only

SPECIFICATIONS

1) Liquid Crystal Display (LCD)

2) pH slope adjustment knob

3) pH offset adjustment knob

4) pH range selection key

5) mV range selection key

6) °C range selection key

7) Temperature setting knob

8) ON/OFF switch

9) Power adapter socket

10) BNC connector for pH (or ORP) electrode

11) Electrode reference socket

4 cm

(1½")

• Press the pH key to display the pH measurement.

• The display shows the pH value of the test solution compensated for

temperature.

If measurements are taken in different samples successively, it is recommended

to rinse thoroughly the electrode with water, and then for some of the next

solution to be measured.

TAKING ORP MEASUREMENTS

pH 209 can also measure ORP, using an ORP electrode. Hanna Instruments

offers a variety of ORP electrodes for this purpose. Contact your dealer for more

information.

• Connect the ORP electrode to the meter and sub-

merge the tip (4 cm / 1½") into the sample to be

tested.

Note: ORP measurements are not compensated for temperature variation.

• Press the mV key to enter the mV mode and allow a few minutes for the reading

to stabilize.

• The display will show the ORP (mV) value.

AFTER MEASUREMENTS

• Press the ON/OFF button to switch the instrument off.

Power connection

Plug the 12 Vdc adapter into the power supply socket (#9 on page 4).

Note: Make sure the main line is protected by a fuse.

Electrode connection

For pH or ORP electrodes with internal reference, connect the electrode to the

BNC socket on the rear panel (#10 on page 4).

For electrodes with separate reference, plug the BNC connector of the electrode

to the BNC socket (#10 on page 4), and the reference electrode to the proper

socket (#11 on page 4) on the rear panel.

Note: To prevent damage to the electrode, remove the pH electrode from the

solution before turning the meter off. With the meter OFF, detach the

electrode and immerse it in the storage solution.

TAKING pH MEASUREMENTS

Make sure that the instrument has been calibrated for pH before taking pH

measurements.

• Switch the instrument on by pressing the ON/OFF

button.

• Immerse the electrode tip (4 cm/1½") into the

sample and shake briefly.

• Take the temperature of the solution with the sup-

plied HI 98501 thermometer (e.g. 25°C).

• Press the °C key to display temperature setting on the LCD and adjust the

temperature knob to display the temperature of the sample.

4 cm

(1½")

OPERATIONAL GUIDE

IMPORTANT

For better accuracy it is recommended to calibrate the instrument frequently.

Calibration should be performed whenever the pH electrode is replaced, after

performing a cleaning procedure or changing the reference electrolyte, and at

least once a month.

INITIAL PREPARATION

Pour small quantities of pH 7.01 (HI 7007) and pH 3.00 (HI 5003) solutions

into clean beakers.

For accurate calibration, use two beakers for

each buffer solution; the first for rinsing the

electrode, the second for calibration.

Note: The electrode should be submerged at least 4 cm (1½") into the solution.

PROCEDURE

Note: If you need to calibrate to NBS standards, use pH 6.86 (HI 7006)

solution instead of pH 7.01.

Use the supplied HI 98501 thermometer as reference.

• Switch the instrument on by pressing the ON/OFF

button.

• Rinse and immerse the pH electrode in pH 7.01 buffer

and shake briefly. Wait a couple of minutes for the

reading to stabilize.

• Note the temperature of the buffer solution using the

supplied HI 98501 thermometer (e.g. 20°C).

• Press the °C key to select temperature setting, then adjust the Temperature

knob until the LCD shows the noted temperature.

pH CALIBRATION

• Press the pH key to select pH measurement.

• Wait a couple of minutes, then adjust the OFFSET knob until the display

shows the pH value at the noted temperature (see the "pH versus

temperature" chart at page 10).

• Rinse and immerse the pH electrode in pH 3.00 buffer and shake briefly.

• Wait a couple of minutes, then adjust the SLOPE knob until the display

shows the pH value at the noted temperature (see the "pH versus

temperature" chart at page 10).

• The pH calibration is now complete.

4 cm

(1½")

HI 7007

RINSE

HI 7007

CALIBRATION

1110

pH ELECTRODE MAINTENANCE

Preparation

Remove the electrode 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.

Sensitive bulb

To avoid clogging problems and ensure a fast response, the bulb must be kept

moist at any time. Store the electrode with few drops of HI 70300 storage

solution in the protective cap. NEVER USE DISTILLED OR DEIONIZED WATER FOR

STORING PURPOSES.

Periodic maintenance

Inspect electrode and cable. The cable used for the connection to the meter must

be intact and there must be no points of broken insulation. The connector must

be perfectly clean and dry. If any scratches or cracks are present, replace the

electrode.

Refilling the electrode

ALWAYS VERIFY THE ELECTROLYTE LEVEL.

If the electrolyte level is more than 2 cm below

the refilling hole, unscrew and remove the refill-

ing hole cap.

Add the 3.5M KCl electrolyte solution (HI 7082)

by using the supplied syringe. Tighten back the

cap. Wait at least 1 hour before using the

electrode.

pH VALUES AT VARIOUS TEMPERATURES

pH readings are strongly affected by temperature. The calibration buffer

solutions are affected by temperature changes to a lesser degree than normal

solutions.

For manual temperature calibration please refer to the following chart.

Note: To prevent damage to the electrode, remove the pH electrode from the

sample before turning the meter off. With the meter OFF, detach the

electrode from the meter and immerse it in the storage solution.

TEMP pH VALUES

°C °F 3.00 6.86 7.01

104

113

122

131

140

149

158

3.07

3.05

3.03

3.02

3.00

2.99

3.00

6.98

6.95

6.92

6.90

6.88

6.86

6.85

6.84

6.83

6.84

6.85

7.13

7.10

7.07

7.04

7.03

7.01

7.00

6.99

6.98

6.99

1312

ACCESSORIES

pH CALIBRATION SOLUTIONS

HI 50003-01 pH 3.00 buffer solution, 20 mL sachet, 10 pcs

HI 50003-02 pH 3.00 buffer solution, 20 mL sachet, 25 pcs

HI 70007P pH 7.01 buffer solution, 20 mL sachet, 25 pcs

HI 5003 pH 3.00 buffer solution, 500 mL bottle

HI 7006L pH 6.86 buffer solution, 500 mL bottle

HI 7007L pH 7.01 buffer solution, 500 mL bottle

HI 8006L pH 6.86 buffer solution in FDA bottle, 500 mL

HI 8007L pH 7.01 buffer solution in FDA bottle, 500 mL

ELECTRODE STORAGE SOLUTION

HI 70300L Storage solution, 500 mL bottle

HI 80300L Storage solution in FDA bottle, 500 mL

ELECTRODE CLEANING SOLUTIONS

HI 70000P Electrode rinsing solution, 20 mL sachet, 25 pcs

HI 7061L General cleaning solution, 500 mL bottle

HI 70635L Cleaning solution for wine deposits, 500 mL bottle

HI 70636L Cleaning solution for wine stains, 500 mL bottle

HI 7073L Protein cleaning solution, 500 mL bottle

HI 7074L Inorganic cleaning solution, 500 mL bottle

HI 7077L Oil & Fat cleaning solution, 500 mL bottle

HI 8061L General cleaning solution in FDA bottle, 500 mL

HI 8073L Protein cleaning solution in FDA bottle, 500 mL

HI 8077L Oil & Fat Cleaning solution in FDA bottle, 500 mL

ELECTROLYTE SOLUTION

HI 7082 3.5M KCl electrolyte solution, 4 x 30 mL, for double junction

electrodes

HI 8082 3.5M KCl electrolyte solution in FDA bottle, 4 x 30 mL, for

double junction electrodes

ORP PRETREATMENT SOLUTIONS

HI 7091L Reducing pretreatment solution, 500 mL bottle

HI 7092L Oxidizing pretreatment solution, 500 mL bottle

Cleaning procedure

After use, clean the electrode by immersing it in the proper cleaning solution (HI

700635 or HI 700636) for 5 minutes.

If case of slow and unreliable readings, it is recommended to perform the

following procedure for cleaning the junction:

1. Shift upwards the PTFE collar. If the collar does not shift easily, immerse it

into warm water.

2. Wipe gently the electrode surface with a soft and clean tissue.

3. In case of persistent wine or must residual, wet the tissue with cleaning

solution (HI 700635 or HI 700636).

4. Put back the collar in its original position.

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 fresh HI 7082 solution.

•Dry Membrane/Junction: soak in HI 70300 storage solution for 1 hour.

•Drifting: soak the electrode tip in warm (approx. 50-60°C) HI 7082

solution for one hour and rinse the tip with distilled water. Refill with fresh

HI 7082 solution.

•Low Slope: refer to the cleaning procedure above.

•No Slope: check the electrode for cracks in glass stem or bulb and replace

the electrode.

•Slow Response/Excessive Drift: soak the tip in HI 7061 solution for 30

minutes, rinse thoroughly in distilled water and then follow the cleaning

procedure above.

1514

ELECTRODES

HI 1048B Glass body, double junction, refillable pH electrode with

BNC connector and 1 m (3.3') cable, for wine, must and

grape juice

FC 100B PVDF body, double junction, refillable, pH electrode with

BNC connector and 1 m (3.3') cable, for food industry

FC 200B PVDFbody, open junction, conic tip, Viscolene, non-refillable

pH electrode with BNC connector and 1 m (3.3') cable, for

meat & cheese

FC 210B Glass body, double junction, conic tip, Viscolene, non-

refillable pH electrode with BNC connector and 1 m (3.3')

cable, for milk and yogurt

HI 3131B Glass body, refillable, platinum ORP electrode

HI 3230B Plastic body, gel-filled, platinum ORP electrode

HI 4430B Plastic body, gel-filled, gold ORP electrode

OTHER ACCESSORIES

HI 710005 115 Vac/12 Vdc power adapter, US plug

HI 710006 230 Vac/12 Vdc power adapter, European plug

HI 76405 Electrode holder

HI 8427 pH and ORP electrode simulator with 1 m (3.3') coaxial

cable ending in female BNC connectors

HI 931001 pH and ORP electrode simulator with LCD and 1 m (3.3')

coaxial cable ending in female BNC connectors

HI 98501 Pocket-size thermometer (range -50.0 to 150.0°C)

Recommendations for Users

Before using this product, make sure that it is entirely suitable for the environment in which it is used.

Operation of this instrument in residential area could cause unacceptable interferences to radio and TV equipment, requiring the

operator to take all necessary steps to correct interferences.

The glass bulb at the end of the electrode is sensitive to electrostatic discharges. Avoid touching this glass bulb at all times.

During calibration of instruments, ESD wrist straps should be worn to avoid possible damage to the electrode by electrostatic

discharge.

To maintain the EMC performance of this equipment, the recommended cables noted in the user's manual must be used.

Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC performance.

To avoid electrical shock, do not use this instrument 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.

WARRANTY

All Hanna Instruments meters 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 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 reserves the right to modify the design, construction and

appearance of its products without advance notice.

MANPH209V 07/05

SALES AND TECHNICAL SERVICE CONTACTS

Australia:

Tel. (03) 9769.0666 • Fax (03) 9769.0699

China:

Tel. (10) 88570068 • Fax (10) 88570060

Egypt:

Tel. & Fax (02) 2758.683

Germany:

Tel. (07851) 9129-0 • Fax (07851) 9129-99

Greece:

Tel. (210) 823.5192 • Fax (210) 884.0210

Indonesia:

Tel. (21) 4584.2941 • Fax (21) 4584.2942

Japan:

Tel. (03) 3258.9565 • Fax (03) 3258.9567

Korea:

Tel. (02) 2278.5147 • Fax (02) 2264.1729

Malaysia:

Tel. (603) 5638.9940 • Fax (603) 5638.9829

Singapore:

Tel. 6296.7118 • Fax 6291.6906

South Africa:

Tel. (011) 615.6076 • Fax (011) 615.8582

Taiwan:

Tel. 886.2.2739.3014 • Fax 886.2.2739.2983

Thailand:

Tel. 66.2619.0708 • Fax 66.2619.0061

United Kingdom:

Tel. (01525) 850.855 • Fax (01525) 853.668

USA:

Tel. (401) 765.7500 • Fax (401) 765.7575

For e-mail contacts and complete list of Sales and Technical

offices, please see www.hannainst.com

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