Pocket pH Tester

Instruction Manual

V20131201

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IntroductionThank you for selecting the pocket pH tester. This manual provides a step-by-step guide to help you operate the meter, please carefully read the followinginstructions before use.

Inserting the Batteries

insert batteries into the battery compartment.— Remove the battery compartment lid.

— Insert the batteries into the battery compartment, note polarity.

— Replace the battery compartment lid and turn clockwise until it is tight.

KeypadThe tester includes 3 multifunction keys, names and symbols describe functionkey controls.

Take out the three G13A button cell batteries from packaging. Follow the stepsbelow to

— Power the tester ON/OFF.— Freezes the measured values on the display, press the key again to resume measuring.— In calibration mode, exits calibration and returns to measurement mode.

— Press and hold the key to enter calibration mode.— Press the key again to select the pH buffer option.

— Confirms the calibration or option.

KEY FUNCTION

MEAS/HOLD

CAL

ENTER

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— Remove the electrode protective cap from tester.

— If the electrode bulb dries out, soak the electrode in storage solution or tap water for at least 15 minutes. Do not use ,

—

—

Prior to Use

moduledistilled or deionized water

it will shorten the life of sensor.

Preparation of pH Standard Buffer SolutionsThe tester is packaged with three pH buffer packets required for calibration.

Open the pH7.00 buffer packet, place the powder into a 250ml volumetric flask. Pour distilled water 250ml to scale line, mix the solution until reagent is completely dissolved.

Preparation of pH4.01 and 10.01 standard buffer solutions are the same as above. Prepared standard buffer solutions should be stored in hermetically sealed glass containers.

Electrode Bulb

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— Press MEAS key to turn on the tester, the meter shows measured values.— — If

—

—

Press and hold the CAL key the display shows “CAL 7-4”. If necessary, press CAL key again, the tester will show “CAL 10-7”.

Choose the pH buffer option you want to use, press ENTER key to confirm. The tester shows first calibration point, pH7.00.

4. Dip the electrode into the pH7.00 standard buffer solution, the end of the electrode must be completely immersed into the calibration solution. Stir the tester gently.

Power On/Off

Press and hold the MEAS key for 5 seconds, the tester will turn off.you do not press any key for 8 minutes, the tester will automatically turn

off to conserve energy.

CalibrationThe tester must be calibrated prior to first use or new electrode replaced.

To ensure accuracy, regular calibration is recommended.Do not reuse calibration solution after calibration, contaminants in solution

will affect the calibration and eventually the accuracy of the measurement.

1. Rinse the pH electrode with distilled water, press MEAS key to turn on the tester.2. for 3 seconds,

3.

HoldMeas

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49G961/49G962/49G964

5. Press ENTER key to confirm. W

Dip the electrode into the pH4.01 or 10.01 standard buffer solution. Stir the tester gently.

7. Press ENTER key to confirm. W

ait for the measured value to stabilize, the reading will flash 3 times indicating that first calibration point is completed.

The tester will automatically show “CAL 4” or “CAL 10” (Depending on the option selected in the step 2).

6. Rinse the electrode with distilled water.

ait for the measured value to stabilize, the reading will flash 3 times, “CAL” indicator will disappear from display, the tester returns to measurement mode. Calibration is completed.

EXIT THE CALIBRATION: During the calibration, If you want to exit calibration mode. Press MEAS key, the tester will immediately return to measurement mode.

or

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pH MeasurementRinse the electrode thoroughly with distilled water,

ait for the to stabilize, record

Electrode ReplacementWhen the tester fails to calibrate or gives fluctuating readings for calibration standards, you need to replace the electrode module.1. Twist the electrode collar counter clockwise, pull the old electrode module away from the tester.

2. Align the slot on the new electrode module, gently push the module into the tester.

3. Twist the electrode collar clockwise until it is tight.

1. press MEAS key to turn on the tester.2. Dip the electrode into the sample solution, stir the tester gently.3. W reading the measured value on the display.

Hold Function1. During the measurement, press HOLD key,

, “HOLD” indicator appears on the display.2. Press the key again to release the measured reading, you can continue to take measurement.

Electrode Care and Maintenance— For best results, please always keep the sensor’s glass bulb wet.— Ensure that the sensor is thoroughly washed with distilled water after each

use.— If you do not use the tester for long periods, please store the sensor with

electrode storage solution. DO NOT use de-ionized or distilled water.

Installation is completed.

the tester immediately freezes current displayed value

Slot

0807

49G961/49G962/49G964

Troubleshooting

Tester Included

×

Appendix: How to prepare electrode storage solution1. Dissolve 223.6 grams of potassium chloride reagent (KCL) in 1 liter distilled water.2. Pour the 50mL of KCL solution into beaker.3. Pour the 50mL of pH4.01 standard buffer solution into the same beaker.4. Stir the solution until the solution has thoroughly mixed, preparation is done.

Specifications

— pH Buffer Pouches (pH4.01/7.00/10.01)— Batteries (G13A 3)— OIPM

Model

pH Range

Accuracy

Calibration Points

pH Buffer Options

Operating Temperature

49G961/49G962/49G964

0.0~14.0pH

±0.1pH

2 points

USA (pH4.01, 7.00, 10.01)o o0~60 C, 32~140 F

Power Requirement

Dimensions

Weight

3 1.5V “ Batteries× G13A”

185(L) 40(Dia.)mm×

100 grams

LCD DISPLAY CAUSE

— Electrode dried out. Soak the electrode in tap water for 10 minutes. — Measured value is out of range. Check the electrode whether clogged, dirty or broken.

module

— Incorrect buffer used or contaminated buffer solution. Use fresh pH buffer solutions for calibration.— Electrode is broken. Replace the electrode .module

— Keypad is not working properly. Replace the batteries.

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49G963/49G966/49G967/49G965/49G968/49G969Pocket pH Tester

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49G963/49G966/49G967/49G965/49G968/49G969

IntroductionThank you for selecting the pocket pH tester. This manual provides a step-by-step guide to help you operate the meter, please carefully read the followinginstructions before use.

KeypadThe tester includes 3 multifunction keys, names and symbols describe functionkey controls.

The tester is equipped with a clear LCD display used to show measured values,mode indicators and unit indicators.

Display

Me

as

Ho

ld

— Power the tester ON/OFF.— Freezes the measured values on the display, press the key again to resume measuring.— In calibration mode, exits calibration and returns to measurement mode.

— Press the key to enter calibration mode.— Press and hold the key to enter the system menu.— In setup mode, press the key to select default options.

— Confirms the calibration or displayed option.

KEY FUNCTION

MEAS/HOLD

CAL

ENTER

HOLD

DESCRIPTION

Indicates tester is in the measurement mode

Indicates tester is in the calibration mode

Indicates tester is in SETUP mode

Indicates the measured value has been frozen

Indicates temperature compensation is enabled

MEAS

CAL

SETUP

ATC

INDICATOR

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Inserting the BatteriesBefore using the tester, insert batteries into the battery compartment, followthe procedure outlined below.—

— Insert two “AAA” batteries into the battery compartment, note polarity.

—

— Installation is completed.

— Remove the electrode protective cap from tester.— If the electrode bulb dries out, soak the electrode in storage solution or tap water for at least 15 minutes. Do not use ,

Twist the electrode collar counter clockwise, pull the electrode module away from the tester.

Align the slot on the electrode module, push the module into the tester.

Twist the electrode collar clockwise until it is tight.

Prior to Use

moduledistilled or deionized water

it will shorten the life of sensor.

+

Electrode Bulb

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49G963/49G966/49G967/49G965/49G968/49G969

—

—

Power On/Off— Press MEAS key to turn on the tester, the display shows measured values.

— —

Preparation of pH Standard Buffer SolutionsThe tester is packaged with three pH buffer packets required for calibration.

Open the pH7.00 buffer packet, place the powder into a 250ml volumetric flask. Pour distilled water 250ml to scale line, mix the solution until reagent is completely dissolved.

Preparation of pH4.01 and 10.01 standard buffer solutions are the same as above. Prepared standard buffer solutions should be stored in hermetically sealed glass containers.

Press and hold the MEAS key for 5 seconds, the tester will turn off.If you do not press any key for 8 minutes, the tester will automatically turn

off to conserve energy.

To disable the auto-off function, please read the SYSTEM SETUP section.

HoldMeas

HoldMeas

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1. Press and hold the CAL key for 3 seconds to enter setup menu, the tester shows default pH buffer option.

Press CAL key again to select the available standards, press ENTER key to confirm.

The tester goes to calibration point selection mode, the display shows “2/ CAL” (2

3. Press CAL key to select the number of calibration points, press ENTER key to confirm.

o The tester goes to temperature unit selection mode, the display shows “ C/ UNIT”

o o Press CAL key to select the temperature unit ( C or F), press ENTER key to confirm.

o The tester goes to temperature calibration mode, the display shows “ C/CAL”.

2.

points calibration).

.

4.

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The tester contains an integrated system menu that allows you to customizeeach displayed option to meet personal preference.

System Menu

PARAMETER OPTIONS

pH Buffer Sets USA Standard (pH4.01, 7.00, 10.01, Default)

NIST Standard (pH4.01, 6.86, 9.18)

Single point calibrationCalibration Point

2 points calibration (Default)

3 points calibration

Degrees Fahrenheit

Temperature Unit Degrees Celsius (Default)

Do not use this function (Default)

Reset Restores the parameters back to default settings

Disables the auto-off function

Auto-Off Function Enables the auto-off function (Default)

Disables the auto-hold function (Default)

Auto-Hold Function Enables the auto-hold function

Temperature Calibration Enters the calibration mode

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49G963/49G966/49G967/49G965/49G968/49G969

If you do not want to perform temperature calibration, press ENTER key, the tester will go to next option.

5. Press CAL key, the tester enters the temperature calibration mode. The display shows current temperature reading.

6. Press CAL key again to set temperature value, press ENTER key to confirm. The tester shows “YES/HOLD” the auto-hold function is enabled.

— If the auto-hold function is enabled, the tester will automatically sense a stable end-point reading and will freeze it. — If you disable this function, the tester allows you to freeze the reading by pressing the HOLD key.

7. Press CAL key to enable or disable the auto-hold function.

8. Press ENTER key to confirm. The tester shows “YES/OFF”

auto-off function is enabled.

indicating that

indicating that the

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When the auto-off function is enabled,

9. Press CAL key to enable or disable the auto-off function.

10. Press ENTER key to confirm. The tester shows “NO/RST”

the tester should not be reset.

Reset function will restore the tester back to factory default parameters,calibration values and selected system parameters will be lost or reset.

11. Press CAL key to enable or disable the reset function.

12. Press ENTER key to confirm. The tester returns to measurement mode.Setting is completed.

if you do not press any keys for 8 minutes, the tester will automatically turn off to conserve energy.

indicating that

WARNING: all

Enter

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allows up to 3 points calibration.

tester can

— — —

Press CAL key the tester shows “pH7.00/CAL1”(or “pH6.86/CAL1”).

4. Dip the pH electrode into the pH7.00 (or pH6.86) standard buffer solution, the end of the electrode must be completely immersed into the calibration solution. Stir the tester gently.

5. Press ENTER key to confirm. W

pH CalibrationDuring pH mode, the tester We recommendthat you perform at least 2 points calibration for high accuracy measurement.The

Single point calibration should only be carried out with pH 7.00 or pH 6.86, otherwise calibration will not be accepted.

automatically recognise and calibrate to following standardbuffer values.

USA Standard: pH4.01, 7.00, 10.01NIST Standard: pH4.01, 6.86, 9.18

The tester must be calibrated prior to first use or new electrode replaced. Toensure accuracy, regular calibration is recommended. Do not reuse calibrationsolution after calibration, contaminants in solution will affect the calibration andeventually the accuracy of the measurement.

Single Point Calibration1. Make sure that you have selected 1 point calibration in the system menu.2. Rinse the pH electrode with distilled water, press MEAS key to turn on the tester.3. ,

ait for the measured value to stabilize, thedisplay shows “END”. Single point calibration is done.

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2 Points CalibrationMake sure that you have selected 2 points calibration in the system menu.Repeat steps 2 to 5 above. When the first calibration point is completed, the

display will show “CAL2”. The tester prompts you to continue with second point calibration.

Rinse the electrode with distilled water,

ait for the measured value to stabilize, the display shows electrode slope and “END”. Second point calibration is done.

3 Points CalibrationMake sure that you have selected 3 points calibration in the system menu.Repeat steps 2 to 5 above. When the first calibration point is completed, the

display will show “pH4.01/CAL2”. The tester prompts you to continue with second point calibration.

Rinse the electrode with distilled water,

ait for the measured value to stabilize, the display shows electrode slope and “pH10.01/CAL3” (or “pH9.18/CAL3”).

— —

— dip the electrode into the pH4.01 or 10.01 (pH4.01 or 9.18) standard buffer solution. — Press ENTER key to confirm. W

— —

— dip the electrode into the pH4.01 standard buffer solution. — Press ENTER key to confirm. W

Enter

Enter

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49G963/49G966/49G967/49G965/49G968/49G969

Rinse the electrode with distilled water,

ait for the measured value to stabilize, the display shows electrode slope and “END”. The tester returns to pH measurement mode. Calibration is completed.

EXIT THE CALIBRATION: During the calibration, if you want to exit calibration mode, press MEAS key. The tester will immediately return to measurement mode.

Temperature CalibrationDuring the measurement, if the temperature reading displayed differs fromthat of an accurate thermometer, you need to calibrate the tester.

6. Press MEAS key, the tester returns to measurement mode. Calibration is completed.

— dip the electrode into the pH10.01 (or pH9.18) standard buffer solution. — Press ENTER key to confirm. W

1. Press and hold the CAL key to enter system menu.o o2. Press ENTER key until display shows the “ C/CAL” or “ F/CAL”.

3. Press CAL key to enter the temperature calibration mode.o4. Press CAL key again to set temperature value (Displayed value ±0.5 C).

5. Press ENTER key to confirm, the display shows next option.

Enter

49G963/49G966/49G967/49G965/49G968/49G969

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pH MeasurementRinse the electrode thoroughly with distilled water,

ait for the to stabilize, record

Electrode ReplacementWhen the tester fails to calibrate or gives fluctuating readings for calibration standards, you need to replace the electrode module.1. Twist the electrode collar counter clockwise, pull the old electrode module away from the tester.

1. press MEAS key to turn on the tester.2. Dip the electrode into the sample solution, stir the tester gently.3. W reading the measured value on the display.

Auto-Hold FunctionWhen the auto-hold function is enabled, the tester will automatically sense astable end-point measured value and freeze it, “HOLD” indicator will appear onthe display. Press HOLD key, the tester resumes measuring.

Manual Hold Function1. During the measurement, press HOLD key,

, “HOLD” indicator will appear on the display.2. Press key again to release the measured reading, you can continue to take measurement.

Electrode Care and Maintenance— For best results, please always keep the sensor’s glass bulb wet.— Ensure that the sensor is thoroughly washed with distilled water after each

use.— If you do not use the tester for long periods, please store the sensor with

electrode storage solution. DO NOT use de-ionized or distilled water.

the tester immediately freezes currently displayed value

49G963/49G966/49G967/49G965/49G968/49G969

22

Specifications

Calibration Points Up to 3 points

pH Buffer Options USA (pH4.01, 7.00, 10.01)

NIST (pH4.01, 6.86, 9.18)

Temperature Compensation o o0~60 C, 32~140 F, Automatic

Auto-Off After 8 minutes from last key press

Operating Temperature o o0~60 C, 32~140 F

LCD Display Custom LCD

Connector 6-pin

Power Requirement 2 1.5V “× AAA” Batteries

Weight 100 grams

Dimensions 185(L) 40(Dia.)mm×

Model 49G963/966/967 49G965/968/969

Temperature Range — o0~60 C

Resolution — o0.1 C

Accuracy — o±1 C

pH Range -1.00~15.00pH -1.00~15.00pH

Resolution 0.01pH 0.01pH

Accuracy ±0.01pH ±0.01pH

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Installation is completed.

— pH Buffer Pouches (pH4.01/7.00/10.01)— Batteries (AAA 2)— OIPM

2. Align the slot on the new electrode module, gently push the module into the tester.

3. Twist the electrode collar clockwise until it is tight.

Troubleshooting

Appendix: How to prepare electrode storage solution1. Dissolve 223.6 grams of potassium chloride reagent (KCL) in 1 liter distilled water.2. Pour the 50mL of KCL solution into beaker.3. Pour the 50mL of pH4.01 standard buffer solution into the same beaker.4. Stir the solution until the solution has thoroughly mixed, preparation is done.

Tester Included

×

Slot

— Electrode dried out. Soak the electrode in tap water for 10 minutes. — Measured value is out of range. Check the electrode whether clogged, dirty or broken.

module

— Incorrect buffer used or contaminated buffer solution. Use fresh pH buffer solutions for calibration.— Electrode is broken. Replace the electrode .module

LCD DISPLAY CAUSE

— Keypad is not working properly. Replace the batteries.