Bante Instruments TB100 User manual

TB100 Portable Turbidity Meter
Instruction Manual
BANTE INSTRUMENTS CO., LTD

TB100 Portable Turbidity Meter
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Introduction
Thank you for selecting the TB100 portable turbidity 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 meet following conditions.
•Relative humidity is less than 80 %.
•Ambient temperature is greater than 0°Cand less than 60°C.
•No potential electromagnetic and ambient light 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.
TB100 Turbidity Meter
Glass Sample Vials
Calibration Standards
Lint-free cloth
Carrying Case

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Operating Principles
The TB100 portable turbidity meter operates on the nephelometric principle of turbidity measurement and is designed to meet the criteria specified in ISO
7027. The following figure shows basic optical system of the meter. It includes a light source and a detector to monitor the light scattered at 90owith
respect to the incident beam.
Display
The 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:
Low battery alarm:
When the battery is depleted, the icon will disappear.
Setup mode icon:
Indicates the meter is in the setting mode.
Measurement mode icon:
Indicates the meter is in the measurement mode.
Memory mode icon:
Indicates the data is stored into memory.
Calibration mode icon:
Indicates the meter is in the calibration mode.
Calibration icon:
Indicates the meter is calibrating.
IR LED
Emitted Light
Sample
90o Scattered Light
Detector

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Keypad Infomation
INDEX:
KEY
FUNCTION
MEAS |
•Switches the meter ON/OFF.
•Press the key to perform a measurement.
•Exits the calibration or setting and returns to measurement.
CAL |
•Starts calibration.
•Enters the setup menu (Press and hold the key for 3 seconds).
MI | ◄
•Stores current reading to memory.
•Increase value or scroll up through the menu item.
MR | ►
•Views the stored data.
•Decrease value or scroll down through the menu item.
ENTER
•Confirms the calibration, settings or displayed options.

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Installing the Battery
1. Remove the battery compartment cover from the backside of the meter.
2. Insert the 9V battery into the battery compartment, note polarity.
3. Replace the battery compartment cover to its original position. Installation is completed.
When the battery is depleted, the meter allows using the DC5V power adapter with USB cable for power supply. Note, take out the battery.
Switching the Meter On and Off
•Press the key to switch on the meter, the display shows the measured value.
•Press and hold the key for 3 seconds, the meter will switch off.
To enable the Auto-Power Off function, please refer to page 5 “Setup Menu”.

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Setup Menu
The TB100 portable turbidity 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 number of calibration points
2 to 5 points
2 points
Set the current date and time
---
Year, Month-Day, Hours-Minutes
---
Set the default turbidity unit
NTU
Nephelometric Turbidity Unit
NTU
FNU
Formazin Nephelometric Unit
EBC
Turbidity scale of the European Brewery Commission
ASBC
Turbidity scale of the American Society of Brewing Chemists
Set the resolution of the measurement
0.01
0.01
0.1
Set the measurement mode
Single measurement
Single
measurement
Continuous measurements
Auto-power off
Enable
Disable
Disable
Clear all stored readings in the memory
Enable
Disable
Disable
Reset the meter to default settings.
Enable
Disable
Disable
Setting the date and time
1.1 Press and hold the key for 3 seconds to enter the setup menu, the meter shows the menu item CAL/P-1 (Calibration Point/Page 1).
1.2 Press the ►key, the display shows DATE/P-2.
1.3 Press the Enter key, the display shows the current year.
1.4 Press the ◄or ►key to set the year and the Enter key to confirm. The display shows the date and time (Format: mm-dd, hh-mm).
1.5 Press the ◄or ►key to set the date and time, press the Enter key to confirm until the meter returns to the measurement mode. Setting is
completed.
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Turbidity unit
The meter is capable of selecting the four turbidity units for measurement, including the NTU, FNU, EBC and ASBC. The default option is NTU.
2.1 Press and hold the key for 3 seconds to enter the setup menu.
2.2 Press the ►key until the meter shows UNIT/P-3, press the Enter key to confirm.
2.3 Press the ◄or ►key to select the default turbidity unit, press the Enter key to return to the measurement mode.
Resolution
The TB100 portable turbidity meter provides two resolution options. For the high-accuracy measurements, 0.01 is recommended.
3.1 Press and hold the key for 3 seconds to enter the setup menu.
3.2 Press the ►key until the meter shows RESO/P-4, press the Enter key to confirm.
3.3 Press ◄or ►key to select the desired resolution, press the Enter key to return to the measurement mode.
Measurment mode
The meter contains two measurement modes. In the single measurment mode, the meter will automatically recognize a stable reading. The continuous
measurements can be used to index or match sample vials. For more information, please refer to page 14 “Indexing and Matching Sample Vials”.
4.1 Press and hold the key for 3 seconds to enter the setup menu.
4.2 Press the ►key until the display shows HOLD/P-5.
4.3 Press the Enter key, the display shows YES/HOLD indicating that the single measurment mode is selected.
4.4 Press the ◄or ►key again, the display shows NO/HOLD indicating that the continuous measurement mode is selected.
4.5 Select the desired measurement mode, press the Enter key to confirm. Setting is completed.
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Auto-power off
The TB100 portable turbidity meter provides an Auto-Power Off function that can be set to 15 minutes or OFF. When the option is enabled, if you do not
press any key within the specified time period, the meter will automatically turn off.
5.1 Press and hold the key for 3 seconds to enter the setup menu.
5.2 Press the ◄or ►key until the display shows OFF/P-6.
5.3 Press the Enter key, the display shows NO/OFF indicating that the Auto-Power Off function is disabled.
5.4 Press the ◄or ►key to enable or disable this function, press the Enter key to return to the measurement mode.
Clear the stored data
Please refer to page 12 “Clearing the Memory”.
Restore factory settings
The Factory Reset is used to restore the meter back to factory default settings. If enabled, all of the calibration data and selected options will be lost or reset,
the meter must be recalibrated.
6.1 Press and hold the key for 3 seconds to enter the setup menu.
6.2 Press the ◄key, the display shows RST/P-8.
6.3 Press the Enter key, the display shows NO/RST indicating that do not reset the meter.
6.4 Press the ◄or ►key to enable or disable this function, press the Enter key to confirm. Setting is completed.
Exit the setting
During the setting process, press the Meas key, the meter will exit the setting and return to the measurement mode.
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Important Notes for Measurement and Calibration
•Do not hold the meter in the hand during the measurement and calibration.
•Glass vials and caps must be cleaned thoroughly with deionised water after each measurement. Minor residuals can cause errors.
•The outside of the vial must be clean and dry, before starting the test. Wipe the vial with a lint-free cloth to remove fingerprints or waterdrops.
•If the vial has minor scratches or scuffs, add a few drops of silicone oil to outside of the vial. Wipe with lint-free cloth.
•For the low turbidity samples (< 200 NTU), we recommend using the same vial to perform the measurement or calibration.
•Ensure that the vial is positioned in the sample chamber, the mark on the vial must be aligned with the arrow on the meter.
•To avoid errors from ambient light interference, do not use the meter in bright sunlight. Always close the light shield lid during the measurement and
calibration.
•Avoid spillage of water in the sample chamber. It may cause damage the meter.
Arrow
Mark
Light shield lid

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Turbidity Calibration
•The TB100 portable turbidity meter is calibrated with Formazin Standards at the factory and does not require user calibration prior to use.
•DO NOT shake or agitate the calibration standard violently to prevent air bubbles.
•In order to get accurate measuring results, we recommend calibrating the meter at least once a month.
•The meter allows turbidity calibration up to 5 points with minimum of 2 points, the default calibration points include the 0.02, 10.00, 200, 500 and
1000 NTU. To ensure higher accuracy, we recommend that you select a standard value close to the sample value you are measuring.
Setting the number of calibration points
1.1 Press and hold the key for 3 seconds to enter the setup menu, the meter shows CAL/P-1.
1.2 Press the Enter key, the display shows 2/CAL (2 points calibration).
1.3 If necessary, press the ◄or ►key to select the number of calibration points.
1.4 Press the Enter key to confirm. Setting is completed.
Calibrating the meter
2.1 Press the Cal key to enter the calibration mode, the display shows 0.02NTU/CAL1.
2.2 If necessary, press the ◄or ►key to select the desired calibration point.
2.3 Insert the corresponding standard into the sample chamber, ensure that the mark on the vial cap
always aligns with the arrow on the meter. Close the light shield lid.
2.4 Press the Enter key, the meter begins the calibration. The Calibration icon will continuously
flashing.

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2.5 Wait for the reading to stabilize, the display automatically shows the next calibration point (e.g.,
10.00NTU).
2.6 Repeat the steps 2.2 and 2.4 above until the meter shows END. Calibration is completed.
During the calibration process, press the Meas key, the meter will exit the calibration and return to the measurement mode.
Turbidity Measurement
An accurate turbidity measurement depends on good measurement techniques. Factors such as clean sample vials, positioning of vial in the sample chamber,
covering the vial with the light shield lid, meter calibration, removal of bubbles, etc. For more information, please refer to page 8 “Important Notes for
Measurement and Calibration”.
Single measurement - low turbidity samples
For the low turbidity samples, we recommend using the same vial to perform the measurement and calibration.
1.1. Rinse the vial with approximately 10ml of the sample, capping the vial with the screw cap and gently inverting it several times. Discard the used
sample and repeat the rinsing procedure two more times.
1.2. Fill the vial with the sample. Cap the vial.
1.3 Allow the vial to stand undisturbed for 1 minute so that bubbles can disappear.
1.4 Wipe the vial with the lint-free cloth to remove waterdrops and fingerprints. Ensure that the outside of the vial is dry and clean.
1.5 Place the vial in the sample chamber. Align the mark on the vial with the arrow on the meter.

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1.6 Close the light shield lid. Press the Meas key, the Measure icon begins flashing.
1.7 Wait for the measured value to stabilize, the Measure icon will stop flashing.
Single measurement - high turbidity samples
2.1 The high turbidity samples (>1100 NTU) must be diluted prior to measurement.
2.2 The dilution water can be obtained by filtering deionized water through a <0.45µ m filter membrane.
2.3 Repeat steps 1.1 to 1.7 above and record the measured value.
2.4 Calculate the true turbidity of the original sample use the following formula:
T=
Where:
T = Ture turbidity of the original sample
Td= Measured value
Vs= Volume of the original sample (ml)
Vd= Volume of the dilution water (ml)
Continuous measurements
3.1 Select the continuous measurement mode in the setup menu (Refer to page 6 “Measurement Mode”).
3.2 Fill the vial with the sample. Cap the vial.
3.3 Gently invert the vial several times to mix the sample.
3.4 Wipe the vial with the lint-free cloth to remove waterdrops and fingerprints. Ensure that the outside of the vial is dry and clean.
3.5 Place the vial in the sample chamber. Align the mark on the vial with the arrow on the meter.
3.6 Close the light shield lid. Press the Meas key, the Measure icon begins flashing, the meter continuously measures the sample.
Stop the continuous measurements
During the measurement process, press the Meas key, the meter will stop the measurements. Press the key again to resume measuring.
Td(Vs+ Vd)
Vs

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Storing and Recalling Data
The TB100 portable turbidity 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 the serial number of the stored data (e.g., LOC/1).
2. Press the ►key, the display shows date and time of the stored data (Format: mm-dd, hh-mm).
3. Press the ►key, the display shows the stored data.
4. Press the ►key again, the meter shows next data set.
5. Press the Meas key, the meter returns to the measurement mode.
If there has not any stored data in the memory, the meter will show ----.
Clearing the memory
When the memory is full, the meter will automatically show “FULL”if the MI key is pressed. To delete all stored data, please follow the steps below.
1. Press and hold the key for 3 seconds to enter the setup menu.
2. Press the ◄or ►key until the display shows CLR/P-7.
3. Press the Enter key, the meter shows NO/CLR.
4. Press the ◄or ►key to select the YES/CLR.
5. Press the Enter key to confirm, the stored data will be deleted.
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Communication
Bante Instruments provides a Data Acquisition System that can be used to transfer data, receive the measuring values or import the data to Excel. You are
able to download this software from our official website at www.bante-china.com. Before installation, ensure that Windows 7/8/10 operating system has
been installed on your computer.
Receiving data
•Connect the USB cable to meter and computer. Click the DAS icon, the system will automatically scan an available communication port and show
the message box “Found a port on your computer”.
•Click the OK button, the application starts.
•Click the Connect button, the screen shows “Port is connected” indicate that communication between the meter and the computer has been
established.
•Click the OK button to confirm.
•Click the Receive button, the stored data in meter will automatically send to computer.
Create the excel file
When the transfer is completed, click the Save as Excel button, the measured values in the data sheet will automatically convert to Excel file.
Once the software is closed, all received data will be lost and can not be recovered.

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Specifications
Model
TB100
Measurement Method
ISO 7027 nephelometric method (90° )
Measurement Range
0~1100 NTU/FNU, 0~275 EBC, 0~9999 ASBC
Resolution
0.01 (0~100 NTU), 0.1 (100~999 NTU), 1 (999~1100 NTU)
Accuracy
± 2% (0~500 NTU), ± 3% (501~1100 NTU)
Calibration Standards
0.02, 10.00, 200, 500, 1000 NTU
Light Source
Infrared-emitting diode (850nm wavelength)
Detector
Silicon Photodiode
Stray Light
< 0.02 NTU
Sample Vials
60 (H) × 25 (Dia)mm
Memory
Stores up to 100 data sets
Output
USB Communication Interface
Operating Temperature
0~60° C
Power Requirements
1 × 9V battery
Dimensions
180 (L) × 85 (W) × 70 (H)mm
Weight
300g
Addendum 1. Indexing and Matching Sample Vials
The United States Environmental Protection Agency (U.S. EPA) recommends that vials used for turbidity calibration or sample measurement be indexed. Its
purpose is obtain a position which provides the lowest turbidity reading. The indexing methods are as follows.
1.1 Fill the vial using the distilled water (< 0.5 NTU). Cap the vial.
1.2 Wipe the vial with the lint-free cloth to remove waterdrops and fingerprints.
1.3 Let the vial stand undisturbed for 5 minutes.
1.4 Place the vial in the sample chamber. Align the mark on the vial with the arrow on the meter.
1.5 Press the Meas key to begin the measurement.
1.6 Slowly rotate the vial approximately 45 degrees. Close the light shield lid and record the measured value.
1.7 Repeat step 6 until the lowest turbidity reading is shown.
1.8 Mark this position on the vial.
Match sample vials
For the best accuracy and repeatability of turbidity measurement, using one indexed vial is best choice. If you need to use a few vials, match these vials are
necessary.
2.1 Repeat the steps above for each vial and record the measured values.
2.2 Find the closest position of these vials measuring value and mark it.

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Addendum 2. Preparation of Standard Formazin Solutions
Preparation of turbidity-free water
Turbidity-free water is used for preparation of turbidity standards and is prepared by filtering deionized water through a 0.45µ m or smaller pore-sized
membrane.
Preparation of turbidity standards
•4000 NTU:
(1) Dissolve 1 gram hydrazine sulfate [(NH2)2•H2SO4] in filtered water and dilute to 100ml in a volumetric flask.
(2) Dissolve 10 grams hexamethylenetetramine [(CH2)6N4] in filtered water and dilute to 100ml in a volumetric flask.
(3) Mix 5.0ml of hydrazine sulfate and 5.0ml of hexamethylenetetramine solutions in a 100ml volumetric flask and let stand 24 hours at 25(± 3°C).
•1000 NTU: mix 25ml of 4000 NTU standard in a 100ml flask, dilute to the mark.
•500 NTU: mix 12.5ml of 4000 NTU standard in a 100ml flask, dilute to the mark.
•200 NTU: mix 10.0ml of 4000 NTU standard in a 100ml flask, dilute to the mark. Mix 50.0ml of above standard in a 100ml flask, dilute to the mark.
•10 NTU: mix 10.0ml of 4000 NTU standard in a 100ml flask, dilute to the mark. Mix 2.5ml of above standard in a 100ml flask, dilute to the mark.

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.