Bante Instruments Bante520 User manual

Bante520 Portable Conductivity Meter
Instruction Manual
BANTE INSTRUMENTS CO., LTD

Bante520 Portable Conductivity Meter
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Introduction
Thank you for selecting the Bante520 portable conductivity meter. This manual provides a step-by-step guide to help you operate the meter, please carefully
read the following instructions before use.
Unpacking
Before unpacking, ensure that the current work environment meets following conditions.
•Relative humidity is less than 80%.
•Ambient temperature is greater than 0°Cand less than 60°C.
•No potential electromagnetic interference.
The following list describes the standard components of the meter. After the unpacking, please check all components are complete. If any are damaged or
missing, please contact nearest distributor.
Bante520 Conductivity Meter
CON-1 Conductivity Electrode
TP-10K Temperature Probe
Conductivity Standard Solutions
Electrode Clip
Carrying Case

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Display
The Bante520 portable conductivity meter is equipped with an easy-read LCD display that used to show the measured values and mode icons. The following
table describes the function of each icon.
INDEX:
Measurement mode icon:
Indicates the meter is in the measurement mode.
Low battery alarm:
When the battery is depleted, the icon will disappear.
Calibration mode icon:
Indicates the meter is in the calibration mode.
Hold icon:
Indicates the measuring value has been locked.
Setup mode icon:
Indicates the meter is in the setting mode.
Automatic Temperature Compensation:
Indicates the temperature compensation is enabled.
Memory icon:
Indicates the data is stored into memory.

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Keypad
KEY
FUNCTION
•Switches the meter ON/OFF.
•Locks the measured value, press the key again to resume measuring.
•Exits the calibration or setting and returns to measurement.
•Sets the temperature.
•Starts calibration.
•Enters the setup menu (Press and hold the key for 3 seconds).
•Stores current reading to memory.
•Increase value or scroll up through the menu item.
•Views the calibration report or data logs.
•Decrease value or scroll down through the menu item.
•Confirms the calibration, settings or displayed options.
•Turn on/off the backlight (Press and hold the key for 3 seconds).
Connectors
INDEX:
NO.
CONNECTOR
DESCRIPTION
1
6-pin Connector
Used for connecting the conductivity electrode
2
Phone Jack
Used for connecting the temperature probe
3
USB
Used for connecting the USB cable

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Installing the Batteries
•Remove the battery cover from backside of the meter.
•Insert three AA batteries into the battery compartment, note polarity.
•Replace the battery cover into its original position. Installation is completed.
When the batteries are depleted, the meter allows using the DC5V power adapter with USB cable for power supply. NOTE, take out the batteries.
Connecting the Sensors
•Take out the conductivity electrode from the packaging. Insert the 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 cord. Always make sure that the connector is clean and dry.
•Insert the connector of temperature probe into to the corresponding connector socket.
Prior to Use
Soak the conductivity electrode for a few minutes in tap water to remove dirt and oil stains on the electrode.

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Switching the Meter On and Off
•Press the Meas key to switch on the meter, the display shows the measured value.
•Press and hold the Meas key for 5 seconds, the meter will switch off.
To enable the Auto-Power Off feature, please refer to chapter SETUP MENU.
Setup Menu
The Bante520 portable conductivity meter contains an integrated setup menu that is used to customize the displayed option to meet measurement
requirements. The following table describes the functions of the menu items.
MENU
DESCRIPTION
OPTIONS
DESCRIPTION
DEFAULT
Set the cell constant to match connected electrode.
K=0.1
K=1
K=1
K=10
Set the number of calibration points.
1 point
3 points
2 points
3 points
Set the temperature correction method and coefficient.
Linear (Range: 0.0~10.0%/°C)
Linear
2.1%/°C
Non-linear
If enabled, pure water coefficient will be applied
automatically for ultra-pure water measurements.
Enable
Disable
Disable
Set the normalization temperature for measurement
and calibration.
25°C
25°C
20°C
Set the default temperature unit.
Degrees Celsius
°C
Degrees Fahrenheit
If enabled, the meter will automatically sense a
stable reading and lock the measurements.
Enable
Disable
Disable
If enabled, the meter will automatically turn off
if no key is pressed within 30 minutes.
Enable
Disable
Disable
Delete all stored readings in the memory.
Enable
Disable
Disable
If enabled, all of the calibration data and selected
parameters will back to factory default settings,
the meter must be recalibrated.
Enable
Disable
Disable
The meter contains two temperature correction methods. The linear temperature correction is appropriate for most samples. If the current sample is
belong to the natural water (e.g., natural ground, well, or surface waters), using the non-linear correction is necessary. Note: non-linear correction
can only be performed at temperature range from 0°Cto 36°C. If the temperature value is out of above range, the meter will always show “----".

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Setting the default option
1. Press and hold the key for 3 seconds to enter the setup menu.
2. Press the or key to select the menu item (e.g., CAL/P-02).
3. Press the Enter key, the meter shows an option.
4. Press the or key to select the desired option, press the Enter key to confirm. Setting is completed.
If you want to exit the setting, press the Meas key.
Menu
Page
Option
Menu

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Temperature Compensation
For better accuracy, we recommend the use of either a sensor with a built-in or a separate temperature probe for the calibration or measurements.
Automatic Temperature Compensation
Connect the temperature probe to the meter (Refer to page 4 “Connecting the Sensors”). The ATC icon immediately 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 °C icon will show on the display indicating that the meter is switched to the manual temperature
compensation mode. To set the temperature value of sample, follow the steps below.
1. Press and hold the oCkey for 3 seconds to enter the temperature setting mode.
2. Press the or key to modify the temperature value.
3. Press the Enter key to confirm.
Press the or key once, the setting value will increase or decrease by 0.1. Press and hold the or key, the setting value will increase or
decrease by 1.
ATC
oC

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Selecting the Conductivity Electrode
The Bante520 portable conductivity meter is capable of using the 3 types of conductivity electrodes. Prior to the calibration and measurement, you need to
select the different sensors as per your sample concentration. The table below shows available electrode and its effective measuring ranges.
CONDUCTIVITY ELECTRODE
MEASURING RANGES
CELL CONSTANT
CON-0.1
0.1~100µ S/cm
K=0.1
CON-1
10µ S/cm~10mS/cm
K=1
CON-10
100µ S/cm~200mS/cm
K=10
Calibrating the Meter
The meter allows 1 to 3 points calibration. 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 meter will automatically detect these conductivity standard solutions and prompt the user to calibrate the meter.
When the calibration is completed, all new calibration values will automatically override existing data.
The following table shows acceptable conductivity range of standard solution for each measuring range.
MEASURING RANGE
CALIBRATION SOLUTION RANGE
DEFAULT
0~20µ S/cm
7~17µ S/cm
10µ S/cm
20~200µ S/cm
70~170µ S/cm
84µ S/cm
200~2000µ S/cm
700~1700µ S/cm
1413µ S/cm
2~20mS/cm
7~17mS/cm
12.88mS/cm
20~200mS/cm
70~170mS/cm
111.8mS/cm
Single point calibration
1.1 Make sure that you have selected 1 point calibration in the setup menu.
1.2 Rinse the conductivity electrode with distilled water, then rinse with a small amount of standard
solution.
1.3 Press the Cal key, the display shows “CAL1” and waits for recognizing the standard solution.

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1.4 Place the electrode (and temperature probe) into the conductivity standard solution, the meter
automatically shows current calibration standard (e.g., 1413µ S/cm).
1.5 Press the Enter key, the meter begins the calibration, the Calibration icon will continuously
flashing.
1.6 Wait for the reading to stabilize, the display automatically shows END. Single point calibration
is completed.
Multi-point calibration
2.1 Ensure that you have selected 2 or 3 points calibration in the setup menu.
2.2 Repeat steps 1.2 to 1.5 above, when the first calibration point is completed, the display will show “CAL2”. The meter prompts you to continue with
second point calibration.
2.3 Rinse and place the electrode (and temperature probe) into the standard solution, the display automatically shows current calibration standard
(e.g.,12.88mS/cm).
2.4 Press the Enter key, the meter begins the calibration, the Calibration icon will continuously flashing.
2.5 Wait for the reading to stabilize, the display will show “CAL3”. The meter prompts you to continue with third point calibration.
2.6 Repeat the steps 2.3 and 2.4 above until the meter returns to the measurement mode. Calibration is completed.
Exit the calibration
During the calibration process, if you want to exit the calibration, press the Meas key.

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Viewing the calibration report
3.1 Press the MR key in the measurement mode and the or key until the display shows
ELE/P-2.
3.2 Press the Enter key. The meter shows the calibration point 1 (e.g., 10.00µS/cm).
3.3 Press the key, the meter shows the calibration factor of the calibration point 1 (e.g., 0.991).
3.4 Press the key again, the meter shows the next data set.
3.5 To exit the calibration report, press the Meas key.
If the meter does not calibrated, the display will only show “----”.

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Temperature Calibration
During the measurement process, if the temperature reading displayed differs from that of an accurate thermometer, the meter 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 oCkey to enter the temperature setting mode.
3. Press the or key to set the temperature value.
4. Press the Enter key to confirm. Calibrating is completed.
During the setting process, press the or key once, the setting value will increase or decrease by 0.1. Press and hold the or key, the
setting value will increase or decrease by 1.
Conductivity Measurement
1. Rinse the conductivity electrode thoroughly with distilled water.
2. Place the electrode into the sample solution, stir the electrode gently.
3. Record the measured value when the reading is stable.
Auto-Hold
The meter contains an Auto-Hold function. If enabled, the meter will automatically sense a stable reading and lock the measurements, the HOLD icon
appears on the display. If disabled, press the key, the meter will immediately lock the displayed value. Press the Meas key to resume measuring.

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Storing and Recalling Data
The Bante520 portable conductivity meter is capable of storing and recalling up to 100 data sets.
Storing readings into memory
During the measurement process, press the MI key to store the reading into the memory, the Memory
icon appears on the display.
Viewing stored readings
1. Press the MR key in the measurement mode, the meter shows LOC/P-1 (Data Log).
2. Press the Enter key, the meter shows the serial number of the stored data.
3. Press the key, the meter shows the stored data.
4. Press the key again, the meter shows the next data set.
5. Press the Meas key, the meter returns to the measurement mode.
Clearing the memory
Please refer to page 5 SETUP MENU.

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Electrode Care and Maintenance
•DO NOT touch the measurement area of electrode and always make sure that is clean.
•If there is a build-up of solids inside the measurement area, 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. After the solids are removed, the electrode must be recalibrated.
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 dirty or broken.
Electrode does not suit the current sample
Replace the conductivity electrode.
Electrode is broken
Replace the conductivity electrode.
Keypad is not working properly
Replace the batteries.
Specifications
Conductivity
Model
Bante520
Range
0.01~20.00, 200.0, 2000µ S/cm, 20.00, 200.0mS/cm
Accuracy
± 0.5% F.S
Resolution
0.001, 0.01, 0.1, 1
Calibration Points
1 to 3 points
Calibration Solutions
10µ S/cm, 84µ S/cm,1413µ S/cm,12.88mS/cm,111.8mS/cm
Temperature
Range
0~105° C, 32~221° F
Accuracy
± 0.5° C
Resolution
0.1° C
Calibration Points
1 point
General
Temperature Compensation
0~100° C, 32~212° F, Manual or Automatic
Temperature Coefficient
0.0~10.0%/° C
Compensation Modes
Linear, Non-linear or Pure Water
Cell Constant
K=0.1, 1, 10
Reference Temperature
20°Cor 25° C
Memory
Stores up to 100 data sets
Output
USB communication interface
Measurement Area

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Connector
6-pin
Display
LCD
Power Requirements
3 × 1.5V “AA” batteries
Dimensions
170 (L) × 85 (W) × 30 (H)mm
Weight
300g
Addendum 1: Preparation of Conductivity Standard Solutions
Place AR potassium chloride reagent in a 50ml beaker and dry in an oven for 3 to 5 hours at 105° C, then cool to room temperature in desiccator.
CALIBRATION SOLUTIONS
REAGENT
84µ S/cm
Accurately weigh out 42.35mg of KCL and dissolve in 1 litre deionised water.
1413µ S/cm
Accurately weigh out 745.9mg of KCL and dissolve in 1 litre deionised water.
12.88mS/cm
Accurately weigh out 7.45g of KCL and dissolve in 1 litre deionised water.
111.8mS/cm
Accurately weigh out 74.5g of KCL and dissolve in 1 litre deionised water.
Stir the solution until the reagent has thoroughly mixed. Preparation is completed.
Addendum 2: How to calculate the temperature coefficient
To determine the temperature coefficient of sample solution use the formula below:
Tc= × 100%
Where:
TC = Temperature coefficient
CTA = Conductivity at Temperature A
CTB = Conductivity at Temperature B
TA = Temperature A
TB = Temperature B
1. Press and hold the oCkey for 3 seconds to enter the temperature setting.
2. Press the or key to set the temperature to 25°C.
3. Place the electrode into the sample solution A and record the temperature value TAand conductivity value CTA.
4. Condition the sample solution and electrode to a temperature that is about 5° C to 10° C different from TA. Record the temperature value TBand
conductivity value CTB.
5. Calculate the temperature coefficient according to the formula above.
CTB-CTA
CTA(TB-25)-CTB(TA-25)

Hazardous Substance Statement
Bante Instruments is committed to the reduction and eventual elimination of all hazardous substances in both the manufacturing process and finished
products we supply. We have an active manufacturing and procurement program to minimize and eliminate the use of harmful heavy metals such as
cadmium, lead, mercury and the like. New technologies and design parameters are also promoting these efforts and we expect to have little or no such
materials in our product in the coming years. We welcome our customer suggestions on how to speed up these efforts.
Warranty
The warranty period for meter is one year from the date of shipment. Above warranty does not cover the sensor and calibration 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 customer.
•Unauthorized modification or misuse.
•Operation outside of the environment specifications of the products.
For more information, please contact the nearest authorized distributor.
BANTE INSTRUMENTS CO., LTD
E-mail: banteinstr[email protected]
Phone: [phone]
Website: www.bante-china.com
The information in this document is subject to change without notice. Copyright © Bante Instruments, 2018. All rights reserved.