BANTE 520 Portable Conductivity Meter User Manual

Bante 520 Portable Conductivity Meter
USER MANUAL

Bante Instruments Inc.

Introduction

Thank you for selecting the 520 portable conductivity meter. This user manual provides a step-by-step guide to help you operate the meter, please carefully read the following instructions before use. Any use outside of these instructions may invalidate your warranty and cause permanent damage to the meter.

Environmental Conditions
Before unpacking, ensure that current environmental conditions meet the following requirements.

• Relative humidity is less than 80%
• Ambient temperature between 0° C (32° F) and 50° C (122° F)
• No potential electromagnetic interference
• No corrosive gas exists

Packing List
The following list describes all components of the meter. If any items are missing or damaged, contact the supplier immediately.

1. 520 meter
2. Electrode clip
3. Standard solutions
4. Conductivity electrode
5. Temperature probe

Meter Overview

1. Sensor connections
2. Slot for electrode clip
3. Display| 4. Membrane keypad
5. Slot for hand strap
6. Battery compartment
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7.  Socket for temperature probe (3.5 mm jack)
8 . Socket for conductivity electrode (6-pin DIN)
9.  USB-A interface to the computer or power adapter

Display

into the memory
| When the battery voltage falls below the minimum power requirements, the icon automatically disappears
| Indicates that the measurement is locked
ATC| Indicates that the automatic temperature compensation is enabled

Keypad

•   Lock or unlock the measurement
•   Exit the calibration, settings, data logs and return to the measurement mode
| •  Set the temperature
| •  Start calibration
•  Press and hold the key to enter the setup menu
| •  Store current reading to memory
•  Increase value or scroll up through a list of options
| •  View the data log or calibration log
•  Decrease value or scroll down through a list of options
| •  Confirm the calibration or displayed option
•  Press and hold the key to switch the backlight on or off

Installing the Batteries

1. Remove the battery compartment cover from the backside of the meter, insert three AA batteries into the battery compartment, note polarity.

2. Replace the battery compartment cover to its original position, push the limiter until it locks.

The meter allows using the 5V DC power adapter (order code: DCPA5V) or the USB port on computer as a power supply.

**** Note, take out the batteries before connecting an external power supply.

Installing the Electrode Clip

The electrode clip is designed for mounting a sensor, but it is not a necessary component for meter. If you want to install this accessory, insert the electrode clip into the slot on the right of the meter.

Switching the Meter On and Off

• Press the Meas key and release to switch on the meter.
• Press and hold the Meas key to switch off the meter.
  

Meter Setup

The 520 meter contains 10 menu items in setup menu. The following table describes the functions of each menu item.

Set the cell constant to match connected electrode.
1.0        K = 0.1
1           K = 1 (default)
10          K = 10
| Calibration Points
Set the number of calibration points.
 1                1 point
2                2 points
3                3 points (default)
| Temperature Coefficient
Set the temperature correction method and coefficient.
          Linear (default 2.1%/° C)
        Non-linear
| Pure Water Compensation
If enabled, the pure water compensation coefficient will be applied automatically for ultra-pure water
measurements.
Enable
Disable (default)
| Reference Temperature
Set the normalization temperature for measurement, the readings will automatically compensate to the selected temperature during measurement.
25°C        25° C (default)
20°C           20°C
| Measurement Unit
Set the default temperature unit.
°C  Degrees Celsius (default)
°F  Degrees Fahrenheit
| Auto-Hold
If enabled, the meter will automatically sense and lock the measurement endpoint.
  Enable
  Disable (default)
| Auto-Power Off
If enabled, the meter will automatically switch off
if no key is pressed within 30 minutes.
  Enable
  Disable (default)
CLr| Clear Stored Data
Delete all data logs in the memory.
Enable
Disable (default)
| Factory Reset
Reset the meter to factory default settings. Note, the meter must be recalibrated.
Enable
**** Disable (default)

The meter contains two temperature correction methods. The linear temperature correction is appropriate for most samples. If the current samples belong to the natural water (e.g., natural ground, well, or surface waters), using the non-linear correction is necessary.

**** Note, the non-linear correction can only be performed at temperature range from 0° C to 36° C (32° F to 96° F). If the temperature value is out of above range, the display will always show —-.

Setting the Default Option

1. In the measurement mode, press and hold the key to enter the setup menu.

2. Press the / key to select a menu item.
   

3. Press the Enter key, the meter shows the current option.
   

4. Press the / key to select a desired option.

5. Press the Enter key to save and return to the measurement mode.
   

To exit the setup menu without saving changes, press the Meas key.

Connecting the Electrode

Take out the conductivity electrode from the carrying case. Insert 6-pin connector into the connector socket on meter, ensure the connector is fully seated.

After connection is completed, DO NOT pull on the sensor cable. Always make sure that the connector is clean and dry.

Temperature Compensation

The temperature compensation has a large effect on the conductivity measurement. If enabled, the meter will use the measured conductivity and temperature readings to calculate the results and automatically compensate to the selected reference temperature. If the temperature coefficient is set to 0, the temperature compensation will be disabled and the meter only shows the actual conductivity at the measured temperature.

Automatic Temperature Compensation
Connect the temperature probe to meter, the ATC icon appears on the display, the meter is now switched to the automatic temperature compensation mode.

Manual Temperature Compensation

If the meter does not detect a temperature probe, the degrees Celsius icon (°C) will show on the display indicating the meter is switched to the manual temperature compensation mode. To set the temperature value follow the steps below.

1. Press and hold the °C key to enter the temperature setting.
2. Press the / key to modify the temperature value.
3. Press the Enter key to save.

Press and hold the / key will make the value change faster.

Selecting a Conductivity Electrode

The 520 meter is capable of using the three types of conductivity electrodes. Before the calibration and measurement, ensure that you have selected a suitable electrode according to the anticipated sample conductivity. The following table lists the selectable electrode and its effective measurement ranges.

Conductivity Calibration

The meter allows up to 3 points calibration in the conductivity mode. Before beginning the calibration, ensure that selected cell constant (K = 0.1, 1, 10) matches connected electrode. For better accuracy, we recommend to perform 3 points calibration or select a standard solution closest to the sample conductivity you are measuring. The meter will automatically detect the standard solution and prompt the user to perform the calibration. If you have changed the electrode, the meter must be recalibrated. The following table shows the default standard solution for each measurement range.

Single Point Calibration

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

2. Rinse the electrode with distilled water, then rinse with a small amount of standard solution.

3. Press the Cal key, the display shows —-/CAL1, the meter waits for recognizing the standard solution.

4. Place the electrode (and temperature probe) into the standard solution, stir gently to remove air bubbles trapped in the slot of the sensor.
   The meter will automatically show the calibration standard (e.g.,1413 µ S/cm).
   

5. Press the Enter key, the Calibration icon begins flashing.
   

6. When the reading has stabilized, the meter will show and Endreturn to the measurement mode.
   

Multipoint Calibration

1. Ensure that you have selected 2 or 3 points calibration in the setup menu.
2. When the first calibration point is completed, the display will show —-/CAL2. The meter prompts you to continue with second point calibration.
3. Repeat steps 1.2, 1.4 and 1.5 above until the meter shows End. Calibration is completed.

To exit the calibration without saving changes, press the Meas key.

Viewing the Calibration Log

1. Press the MR key in the measurement mode and press the key until the meter shows ELE/P-2 (Electrode/Page 2).
   

2. Press the Enter key, the meter shows the calibration point 1.
   

3. Press the key to view the calibration factor of the calibration point 1 (e.g., 0.995).
   

4. Press the key to view the next data set.

5. To exit the calibration log, press the Meas key

If the meter is not calibrated with standard solution, the display will show —- only.

Temperature Calibration

The 520 meter is supplied with a temperature probe for measurement and temperature compensation. If the measured temperature reading differs from that of an accurate thermometer, the probe needs to be calibrated.

1. Connect the temperature probe to the meter and place into a solution with a known accurate temperature.
2. Press and hold the °C key to enter the temperature setting.
3. Press the / key to modify the temperature value.
4. Press the Enter key to save.
   

Measurement

1. Rinse the conductivity electrode with distilled water. Place the electrode (and temperature probe) into the sample solution and stir gently. Ensure that no air bubbles on the sensor surface.

2. If the Auto-Hold option in the setup menu is enabled, the meter will automatically lock the measurement endpoint and show HOLD icon. Press the Meas key to resume measuring. If the option is disabled, the meter will continuously measure and update the readings.
   

3. Wait for the measurement to stabilize and record the reading.

4. When all of the samples have been measured, rinse the electrode with distilled water.

If the meter shows —- indicating the measurement exceeds the range, replace a conductivity electrode that is appropriate for the conductivity range of the sample solution you are measuring.

Data Management

The 520 meter is capable of storing and recalling up to 100 data sets.
Storing a Measurement Result
In the measurement process, press the MI key to store the reading into the memory, the Memory icon appears on the display.
Viewing the Data Logs

1. Press the MR key in the measurement mode, the meter shows (Log/Page 1).
   

2. Press the Enter key, the meter shows the serial number of the stored data.
   

3. Press the key to view the stored data.
   

4. Press the key to view the next data set.

5. To exit the data log, press the Meas key.

If the meter does not store any reading, the display will show —- only.

Clearing the Data Logs
If the memory is full, the meter will automatically show  FULL when the MI key is pressed. To delete the data logs, please follow the steps below.

1. Press and hold the key to enter the setup menu.

2. Press the key until the meter shows CLr/P-09.
   

3. Press the Enter key, the meter shows no/CLr

4. Press the key to select the YE5/CLr
   

5. Press the Enter key to confirm.

Communication

The 520 meter can transfer the data to a computer or import the data to Excel by a DAS software. You are able to download this software from our official website. Before installation, make sure that the Windows 10 operating system has been installed on your computer and you have a USB-B2303 data cable.

Receiving the Data

1. Connect the black port of the data cable to meter and the blue port to computer.

2. Click the DAS ECO Series icon, the system automatically scans an available communication port and shows a message box “Found a port on your computer”.

3. Click the OK, the application starts.

4. Click the Connect, the screen shows “Port is connected”.

5. Click the OK, then click the Receive, the stored data will transfer to computer automatically.

If your computer can not find a communication port, click the “PL2303 _Prolific_DriverInstaller_v1190.exe” to update the drive program.

Creating an Excel File
When transfer is completed, click the Save as Excel, the readings in data sheet will automatically convert to Excel file.
**** Note, once the software is closed, all received data will be lost and can not be recovered.

Electrode Maintenance

• 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 carefully, then recalibrate the electrode.

• If you do not use the electrode for long periods, wipe clean with a lint-free tissue and store the electrode in a dry and cool area.

• If your electrode is model CON-10, store the electrode with tap water. This sensor needs to be kept wet always.

Appendix

Preparation of Conductivity Standard Solutions

1. Place the analytical grade potassium chloride (KCl) in a beaker and dry in an oven for about 3 hours at 105° C (221° F), then cool to room temperature.
2. Add the reagent to a 1 liter volumetric flask according to the instructions in table below.
   Conductivity Standard| Reagent| Weight
   ---|---|---
   84 µ S/cm| KCl| 42.35 mg
   1413 µ S/cm| KCl| 745.5 mg
   12.88 mS/cm| KCl| 7.45 g
   111.8 mS/cm| KCl| 74.5 g
3. Fill the distilled water to the mark, mix the solution until the reagent is completely dissolved.

Calculating the Cell Constant

1. Refer to the Meter Setup section to reset the meter.
2. Place the electrode into a standard solution and record the reading.
3. Calculate the cell constant using the following formula.
   Where:
   K = Cell constant
   Cstd = Value of conductivity standard solution
   Cmeas = Measured value
   G = Raw cell constant (0.1, 1 or 10)

Calculating the Temperature Coefficient

1. Do not connect the temperature probe to meter.
2. Press and hold the °C key to enter the temperature setting.
3. Press the / key to set the temperature to 25° C and press the Enter key to confirm.
4. Place the conductivity electrode into the sample solution, record the temperature value TA and conductivity value CTA.
5. Condition the sample solution and electrode to a temperature TB that is about 5° C to 10° C different from TA. Record the conductivity value CTB.
6. Calculate the temperature coefficient using the formula below.
   Where:
   TC = Temperature coefficient
   CTA = Conductivity at temperature A
   CTB = Conductivity at temperature B
   TA = Temperature A
   TB = Temperature B

Optional Accessories

Conductivity Electrodes

Order Code| Description
CON-0.1| For measuring the pure water
CON-1| For general purpose applications
CON-10| For measuring the high conductivity liquids
Temperature Probe
Order Code| Description
TP-10K| 3.5 mm jack plug, 1 m (3.3 ft) cable
Solutions
Order Code| Description
ECCS-84| Conductivity standard solution 84 µ S/cm, 480 ml
ECCS-1413| Conductivity standard solution 1413 µ S/cm, 480 ml
ECCS-1288| Conductivity standard solution 12.88 mS/cm, 480 ml
ECCS-1118| Conductivity standard solution 111.8 mS/cm, 480 ml
Communication and Power Supply

Order Code| Description
USB-2303A| USB connector A to A, 1 m (3.3 ft) cable
DCPA-5V| 5V DC power adapter, european standard plug

Meter Specifications

Conductivity
Range| 0.01 µ S/cm to 200.0 mS/cm
Resolution| 0.001, 0.01, 0.1, 1
Accuracy| ± 0.5% F.S.
Calibration Points| 1 to 3 points
Calibration Solutions| 10 µ S/cm, 84 µ S/cm, 1413 µ S/cm,
12.88 mS/cm, 111.8 mS/cm
Temperature Compensation| 0 to 100° C (32 to 212° F), manual or automatic
Temperature Coefficient| Linear (0.0 to 10.0%/° C), non-linear or pure water
Reference Temperature| 20 or 25° C
Cell Constant| K = 0.1, 1, 10
Temperature
Range| 0 to 105° C (32 to 221° F)
Resolution| 0.1° C (0.1° F)
Accuracy| ± 0.5° C (± 0.9° F)
Calibration Point| 1 point
Other Specifications
Memory| 100 data sets
Communication Interface| USB-A
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)
Display| LCD, 80 × 60 mm (3.15 × 2.36 in.)
Power Requirements| 3 ×  1.5V AA alkaline batteries or 5V DC power adapter
Auto-Off| 30 minutes after last key pressed
Dimensions| 170 (L) ×  85 (W) ×  30 (H) mm, (6.69 × 3.35 × 1.18 in.)
Weight| 300 g (10.5 oz.)

Troubleshooting

Soak the conductivity electrode in tap water for about 10 minutes.
Measurement exceeded the maximum range.
Check the electrode and sample.
If non-linear correction is enabled, make sure that the sample temperature between 0 and 36° C.
Drifting erratic readings| Check whether electrode is contaminated, clogged or broken.
Err| Electrode is broken.
Replace the conductivity electrode.
Keypad is not working| Replace the batteries.
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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 product in accordance with local regulations at the collecting point specified for electrical and electronic equipment.

Warranty
The warranty period for meter is one year from the date of shipment. Above warranty does not cover the electrode and electrolyte solution. 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 customer
• Unauthorized modification or misuse
• Operation outside of the environment 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: A10, No.2066, Laifang Rd., Shanghai 201615, China
Tel: (+86) 21-6404-1598
E-mail: banteinstrument@hotmail.com
 www.bante-china.com

http://bante-china.com/enHome/
The information in this document is subject to change without notice.
Copyright © Bante Instruments Inc, 2022. All rights reserved.

References

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

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