BANTE TDSscan20 Pocket TDS Tester User Manual

BANTE TDSscan20 Pocket TDS Tester

Overview

Thank you for selecting the TDSscan series pocket TDS tester. This user manual provides a step-by-step guide to help you operate the tester, please carefully read the following instructions before use.

Installing the Batteries

1.  Twist the electrode collar counterclockwise, pull the electrode away from the tester.
2.  Insert two AAA alkaline batteries into the battery compartment, note polarity.
3.  Push the electrode into the tester and twist the electrode collar clockwise until tight.

Keypad

Function

1. Switch the tester on or off
2. Lock or unlock measurement
3. Exit calibration and return to the pH measurement
4. Start calibration
5. Select the pH buffer option
6. Confirm the calibration or displayed option
7. Toggle between pH and temperature measurement modes (For PHscan20 tester only)

Display

Prior to Use

Remove the protective cap and translucent cover from the bottom of the tester. If the platinum sensor has dried out, soak the electrode for about 10 minutes in tap water.

Switching the Tester On and Off.

1.  Press and hold the Meas key for about 5 seconds to switch on the tester.
2. Press and hold the Meas key to switch off the tester.
   If you do not press any key within 8 minutes, the tester will switch off automatically to conserve energy.

Meter Setup

The 210 meter contains an integrated setup menu for customizing the displayed option to meet measurement requirements. The following table describes the functions of each menu item.

1. pH Buffer Group Set the pH buffer group for calibration and auto-recognition.
2. USA (default)
3. NIST
4. Calibration Points Set the number of calibration points.
5.  point
6. points (default)
7. points
8. Measurement Unit Set the default temperature unit.
9. Degrees Celsius (default)
10. Degrees Fahrenheit
11. Auto-Hold If enabled, the meter will automatically sense and lock the measurement endpoint.
12. Enable
13. Disable (default)
14. Auto-Power Off If enabled, the meter will automatically switch off if no key is pressed within 3 hours.
15. Enable
16. Disable (default)
17. Factory Reset Reset the meter to factory default settings. Note, the meter must be recalibrated.
18. Enable
19. Disable (default)

Setting the Default Option

1.  In the measurement mode, press and hold the Cal key to enter the setup menu.
2.  If necessary, press the Cal key again to select an option.
3.  Press the Enter key, the tester saves the current option and moves to the next menu item.
4.  Repeat steps above until the tester returns to the measurement mode.

•  During the setting process, if you do not need to calibrate the temperature, press the Enter key to skip the / or / option.
• To exit the setup menu, press the Meas key.

TDS Calibration

The TDSscan20 tester allows 1 to 3 points calibration. We recommend that you perform 3 points calibration or select a standard solution closest to the sample TDS you are measuring. When the calibration is completed, all new calibration values will automatically override existing data.
Make sure that use the fresh standard solution during the calibration. DO NOT reuse the standard solution after calibration, contaminants in solution will affect the calibration and eventually the accuracy of the measurement.

Single Point Calibration

Ensure that you have selected 1 point calibration in the setup menu.

• Press the Cal key, the tester shows —-/CAL 1.
• Rinse the electrode with distilled water and place it into the standard solution. Stir tester gently to remove air bubbles trapped. in the slot of the sensor. The tester will automatically recognize. the standard solution and show the calibration value.
•  Press the Enter key, the default calibration value begins flashing.
• If necessary, press the Cal key to modify the calibration value, press the Enter key to confirm, and move to the next digit. When the setting is completed, make sure that the displayed value matches the calibration standard.
•  Press the Enter key, the tester begins the calibration. When the reading has stabilized, the display will show. Calibration is completed.

Multipoint Calibration

Ensure that you have selected 2 or 3 points calibration in the setup menu

• Repeat steps 1.1 through 1.5 above. When the first calibration point is completed, the display will show —-/CAL 2, the tester prompts you to continue with second point calibration.
• Repeat steps 1.2 through 1.5 above until the display shows  Calibration is completed.

1. Performing the conductivity calibration will simultaneously calibrate the corresponding salinity value.
2. To exit the calibration without saving calibrated values, press the Meas key.

Temperature Calibration

The TDSscan20 tester is installed with a built-in temperature sensor for automatic temperature compensation. During the measurement, if the measured temperature reading differs from that of an accurate thermometer, the tester needs to be calibrated.

• Press and hold the Cal key to enter the setup menu.
•  Press the Enter key until the display shows or /.
•  Press the Cal key, the tester enters the temperature calibration mode.
• Place the electrode into a solution with a known accurate temperature and wait for the measurement to stabilize.
•  Press the Cal key to modify the temperature value.
• Press the Enter key to save and press the Meas key to return to the measurement mode

Measurement

Rinse the electrode with distilled water, place the electrode into the sample solution and stir gently, making sure that no air bubbles on the sensor surface. Wait for the measurement to stabilize and record the reading.

• During the measurement, DO NOT completely immerse the tester in water.
• If the display shows —- indicating the measurement exceeds the range, remove the tester from the sample immediately.
• If the option is enabled in the setup menu, the tester will automatically lock the measurement endpoint and show the HOLD icon. Press the Meas key to resume measuring.

Electrode Maintenance and Replacement

• Rinse the electrode thoroughly with distilled water after use.
• Do not touch the platinum black coating on the sensor surface and always keep it clean.
• If there is a build-up of solids inside the sensor, remove them carefully, then recalibrate the tester.
• If you do not use the tester for long periods, store the electrode with tap water.

Replacing the Electrode

If the tester fails to calibrate or gives fluctuating readings, you should consider replacing the electrode.

1. If the tester fails to calibrate or gives fluctuating readings, you should consider replacing the electrode.  away from the tester.
2.  Align the slot on the new electrode, gently push the electrode into the tester.
3. Twist the electrode collar clockwise until tight.

Appendix

Calculating the TDS Conversion Factor
The TDSscan20 tester allows setting the conversion factor according to the type of sample. The factory default is 0.50. The following formula describes the calculation method.
Actual TDS = Value from the high purity water and precisely weighed
NaCl or KCL reagent
Actual Conductivity = The tester measured conductivity value

For example:
Dissolve 64 grams of the potassium chloride (KCl) reagent in 1 liter distilled water. If measured conductivity is 100 mS/cm, then TDS factor i s 0.64.

Preparation of TDS Standard Solutions
Place the analytical grade potassium chloride (KCl) in a beaker and dry i n an oven for about 3 hours at 105° C (221° F), then cool to room temperature. Add the reagent to a 1 liter volumetric flask according to the instructions in table below.

TDS Standard Reagent Weight
71.8 ppm KCl 74.4 mg
744.7 ppm KCl 745.5 mg
7447 ppm KCl 7.45 g

Fill the distilled water to the mark, mix the solution until the reagent is completely dissolved.

Optional Accessories

Order Code Description

• E-ECscan-C1-10K Platinum conductivity cell, K=1
• TDSCS-718 Standard solution 71.8 ppm, 480 ml
• TDSCS-744 Standard solution 744 ppm, 480 ml
• TDSCS-7447 Standard solution 7447 ppm, 480 ml

Tester Specifications

Model      TDSscan20

TDS

• Range           0 to 10.00, 100.0, 1000 ppm, max. 20.00 ppt
• Resolution        0.01, 0.1, 1
• Accuracy                 ± 1% F.S.
• Calibration Points       1 to 3 points

Temperature

• Range                    0 to 60° C (32 to 140° F)
• Resolution                        0.1° C (0.1° F)
• Accuracy                       ± 1° C (± 1.8° F)
• Calibration                    Point 1 point
• Calibration                    Range Reading ± 10° C/° F

Other Specifications

• Temperature Compensation                0 to 60° C (32 to 140° F), automatic
• TDS Factor                                           0.1 to 1.0
• Operating Temperature                         0 to 50° C (32 to 122° F)
• Storage Temperature                             0 to 60° C (32 to 140° F)
• Relative Humidity                                < 80% (non-condensing)
• IP Rating                                                     IP54
• Display LCD,                                      21 × 21 mm (0.82 × 0.82 in.)
• Power Requirements                              2 × 1.5V AAA alkaline batteries
• Auto-Off                                         8 minutes after last key pressed
• Dimensions                                   185 (L) × 40 (Dia.) mm (7.28 × 1.57 in.)
• Weight                                                                 100 g (3.5 oz.)

Disposal

This product is required to comply with the European Union’s Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC and may not be disposed of in domestic waste. Please dispose of the product in accordance with local regulations at the collecting point specified for electrical and electronic equipment.

Warranty

The warranty period for the meter is one year from the date of shipment. The above warranty does not cover the electrode and pH buffer solutions. Out of warranty products will be repaired on a charged basis. The warranty on your meter shall not apply to defects resulting from:

• Improper or inadequate maintenance by the customer
• Unauthorized modification or misuse
• Operation outside of the environmental specifications of the products.

For more information, please contact the supplier.

Office: 4715 Castlewood St., Sugar land, TX 77479, USA
Tel: (+1) 346-762-7358
E-mail: banteinstruments@yahoo.com
Factory: F3, Building 2, No.2185, Laifang Rd., Shanghai 201615, China Tel: (+86) 21-6404-1598
E-mail: banteinstrument@hotmail.com

References

• Bante Instruments - Professional pH, Ion, Conductivity, Dissolved Oxygen, Turbidity Meters & Lab Equipments Manufacturer

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>