Bante Instruments ECscan40 Manuel utilisateur

ECscan40 Pocket Conductivity/TDS/Salinity Tester

Instruction Manual

BANTE INSTRUMENTS LIMITED

Technology to create the future...

ECSCAN40 POCKET CONDUCTIVITY/TDS/SALINITY TESTER

Introduction

Thank you for selecting the ECscan40 pocket conductivity tester. This manual provides a step-by-step guide to help you operate the meter,

please carefully read the following instructions before use.

Unpacking the Meter

The following list describes the standard accessories of the tester. After the unpacking, please check all accessories are complete. If any

are damaged or missing, please contact nearest distributor.

ACCESSORIES:

■Conductivity Calibration Solutions (84µS/cm, 1413µS/cm, 12.88mS/cm)

■AAA Batteries

■Carrying Case

Keypad

ECscan40 tester has a succinct membrane keypad, names and symbols describe the each function key controls.

INDEX:

KEY

FUNCTION

MEAS/HOLD

■Power the tester ON/OFF.

■Freezes the measured values on the display, press the key again to resume measuring.

■In the calibration mode, exits calibration and returns to measurement mode.

CAL 

■Press the key to enter the calibration mode.

■Press and hold the key to enter setup menu.

■In the calibration mode, press the key to set calibration values.

■In the setup mode, press the key to select default option.

ENTER

■Confirms the calibration or displayed option.

■Toggles between conductivity, TDS and salinity measurement modes.

ECSCAN40 POCKET CONDUCTIVITY/TDS/SALINITY TESTER

Display

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

INDEX:

INDICATOR

DESCRIPTION

MEAS

Indicates tester is in the measurement mode

CAL

Indicates tester is in the calibration mode

SETUP

Indicates tester is in SETUP mode

HOLD

Indicates the measured value has been frozen

ATC

Indicates temperature compensation is enabled

Prior to Use

■Remove the electrode protective cap from tester.

■Soak the electrode for a few minutes in tap water to remove dirt and oil stains on the electrode.

Power On/Off

■Press MEAS key to turn on the tester, the display shows measured values.

■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 SETUP MENU section.

mppm ppt

ECSCAN40 POCKET CONDUCTIVITY/TDS/SALINITY TESTER

Setup Menu

ECscan40 tester contains an integrated setup menu that allows you to customize each option to meet measurement requirements.

PARAMETER

DESCRIPTION

OPTIONS

DESCRIPTION

DEFAULT

Calibration Point

1 point

■

2 points

3 points

TDS Factor

Adjustable range: 0.1 to 1.0

0.5

Temperature Unit

Degrees Celsius

■

Degrees Fahrenheit

Temperature Calibration

Enters the temperature calibration mode

Auto-Hold

Enable

Disable

■

Auto-Off

Enable

■

Disable

Reset

Restores the parameters back to default settings

Do not use this function

■

SETTING THE DEFAULT PARAMETERS:

1. Press and hold the CAL key for 3 seconds to enter setup menu, the tester shows current selected number of calibration points.

2. Press CAL key to select 1 or 2 or 3 point calibration. Press ENTER key to confirm, the tester goes to TDS factor setting mode, the

display shows “0.5/TDS”.

3. Press CAL key to set the TDS conversion factor. Press ENTER key to confirm, the tester goes to temperature unit selection mode, the

display shows “oC/UNIT”.

Enter

ECSCAN40 POCKET CONDUCTIVITY/TDS/SALINITY TESTER

4. Press CAL key to select the temperature unit (oC or oF). Press ENTER key to confirm, the tester goes to temperature calibration mode,

the display shows “oC/CAL”.

5. If you do not want to perform temperature calibration, press ENTER key, the tester goes to next option. If needed, press CAL key to

enter the temperature calibration mode, the display shows current temperature reading.

6. Press CAL key to set temperature value. Press ENTER key to confirm, the tester shows “YES/HOLD” indicating that the auto-hold

function is enabled.

■If the auto-hold function is enabled, the tester will automatically sense a stable endpoint reading and freeze it.

■If you disable this function, the tester allows user to freeze the reading by pressing the HOLD key.

7. Press CAL key to enable or disable the auto-hold function. Press ENTER key to confirm, the tester shows “YES/OFF” indicating that the

auto-off function is enabled.

■When the auto-off function is enabled, if you do not press any keys for 8 minutes, the tester will automatically turn off to conserve

energy.

Enter



Cal



Enter

ECSCAN40 POCKET CONDUCTIVITY/TDS/SALINITY TESTER

8. Press CAL key to enable or disable the auto-off function. Press ENTER key to confirm, the tester shows “NO/RST” indicating that do not

reset the tester.

■Reset function will restore the tester back to factory default settings, all calibration values and selected parameters will be reset.

9. Press CAL key to enable or disable the reset function. Press ENTER key to confirm, the tester returns to measurement mode. Setting is

completed.

EXIT THE SETUP MENU:

Press MEAS key in setup mode, the tester will return to measurement mode immediately.

Conductivity Calibration

ECscan40 tester allows up to 3 points calibration in the conductivity mode. To ensure higher accuracy, we recommend that you perform 3

points calibration or select a standard value close to the sample value you are measuring. The tester will automatically detect these

conductivity standard solutions and prompt the user to calibrate the meter. When the calibration is done, all new calibration values will

automatically override existing data.

The following table shows acceptable conductivity range of calibration solution for each measuring range.

MEASURING RANGE

CALIBRATION SOLUTION RANGE

DEFAULT

0~20µS/cm

7~17µS/cm

10µS/cm

20~200µS/cm

70~170µS/cm

84µS/cm

200~2000µS/cm

700~1700µS/cm

1413µS/cm

2~20mS/cm

7~17mS/cm

12.88mS/cm

Ensure that you use fresh conductivity standard solution during the calibration. Do not reuse calibration solutions as it may be

contaminated and affect the calibration and accuracy of measurement.

SINGLE POINT CALIBRATION:

1.1 Rinse the conductivity electrode with distilled water, then rinse with a small amount of calibration solution.

1.2 Press CAL key, the tester enters the calibration mode.

Enter

Cal





ECSCAN40 POCKET CONDUCTIVITY/TDS/SALINITY TESTER

1.3 Dip the electrode into the calibration solution, the tester immediately shows current calibration standard (e.g. 1413µS/cm).

1.4 Press ENTER key, the default calibration value begins flashing.

1.5 Press CAL key to set each digit, press ENTER key to confirm. When the setting is done, ensure the displayed value matches your

calibration standard.

1.6 Press ENTER key to start the calibration. Wait for the reading to stabilize, the display shows “END”. The tester returns to

measurement mode automatically. Single point calibration is completed.

2 POINTS CALIBRATION:

2.1 Make sure that you have selected 2 points calibration in the setup menu.

2.2 Repeat steps 1.2 to 1.6 above, when the first calibration point is done, the display will show “CAL2”. The tester prompts you to

continue with second point calibration.

2.3 Dip the electrode into the calibration solution, the tester automatically shows current calibration standard (e.g. 84µS/cm).

Enter

ECSCAN40 POCKET CONDUCTIVITY/TDS/SALINITY TESTER

2.4 Press ENTER key, the default calibration value begins flashing.

2.5 Press CAL key to set each digit, press ENTER key to confirm. When the setting is done, ensure the displayed value matches your

calibration standard.

2.6 Press ENTER key to start the calibration. Wait for the reading to stabilize, the display shows “END”. The tester returns to

measurement mode. Second point calibration is completed.

3 POINTS CALIBRATION:

3.1 If you have selected 3 points calibration in the setup menu, when second calibration point is done, the display will immediately show

“CAL3”. The tester prompts you to continue with third point calibration.

3.2 Repeat the above steps until the display shows “END”, the tester returns to measurement mode. Calibration is completed.

Temperature Calibration

During the measurement, if the temperature reading displayed differs from that of an accurate thermometer, you need to calibrate the

tester.

1. Press and hold the CAL key for 3 seconds to enter setup menu.

2. Press ENTER key until tester shows the “oC/CAL” or “oF/CAL”.

3. Press CAL key to enter the temperature calibration mode.

4. Press CAL key again to set temperature value (Resolution: 0.5oC).

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

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

Enter

ECSCAN40 POCKET CONDUCTIVITY/TDS/SALINITY TESTER

■During the calibration process, if you want to exit the calibration, press MEAS key, the tester will return to measurement mode.

■Performing the conductivity calibration will simultaneously calibrate the corresponding TDS and salinity value.

Switching the Measurement Mode

1. In the conductivity mode, press ENTER key until the display shows “TDS”. The tester is now enters to TDS measurement mode.

2. Press ENTER key, the tester enters the salinity measurement mode.

3. Press ENTER key again, the tester returns to conductivity measurement mode.

Measurement

Rinse the conductivity electrode with distilled water. Dip the electrode into the sample solution. Stir the tester gently. Wait for the reading

to stabilize, record the measured value on the display.

Hold Function

ECscan40 tester has two data hold modes. When the Auto-Hold function is enabled, the tester will automatically sense a stable endpoint

measured value and freeze it, “HOLD” indicator will appear on the display. If the Auto-Hold function is disabled, press HOLD key, the tester

will immediately freeze currently displayed value. Press the key again to release the measured reading, you can continue to take

measurement.

Enter

ppm

Enter

ppt

Enter

Hold

Meas

ECSCAN40 POCKET CONDUCTIVITY/TDS/SALINITY TESTER

Electrode Care and Maintenance

■After each use, the electrode module should be rinsed thoroughly in deionised water.

■If there is a build-up of solids inside the measurement area of the cell, these should be removed very carefully with a cotton bud soaked

in solvent, taking care not to touch the metal parts of the inner cell.

Electrode Replacement

When the tester fails to calibrate or gives fluctuating readings for calibration standards, you need to replace the electrode module.

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

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

■Twist the electrode collar clockwise until it is tight. Installation is completed.

Replacing the Batteries

If the battery indicator is disappeared during the use, you need to replace the batteries.

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

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

■Align the slot on the electrode module, push the module into the tester. Twist the electrode collar clockwise until it is tight.

Troubleshooting

LCD DISPLAY

CAUSE

CORRECTIVE ACTION

Electrode dried out

Soak the conductivity electrode in tap water for 10 minutes

Measured value is out of range

Check the electrode whether clogged, dirty or broken

Incorrect calibration solutions

Use fresh conductivity standard solutions for calibration

Setting value does not match calibration solution

Reset the calibration value

Electrode is broken

Replace the conductivity electrode module

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