BANTE TB100 User manual

TB100 Portable Turbidimeter
Instruction Manual
BANTE INSTRUMENTS LIMITED

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Introduction
Thank you for selecting the TB100 portable turbidimeter. 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:
Before unpacking, ensure that the current work environment meet following conditions.
●Relative humidity is less than 80%.
●Ambient temperature is greater than 0oC and less than 60oC.
●No potential electromagnetic interference.
The following list describes the standard accessories of the meter. After the unpacking, please check all accessories are complete. If any are damaged or
missing, please contact nearest distributor.
ACCESSORIES:
●Glass sample vials
●Calibration standards 0, 10, 200 and 1000 NTU
●Lint-free cloth
●9V battery
Operating Principles
TB100 portable turbidimeter 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 90°with respect to
the incident beam.
IR LED
Emitted Light
Sample
90o Scattered Light
Detector

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Overview
TB100 portable turbidimeter measures turbidity from 0 to 1100 NTU/FNU, or 0 to 275 EBC, or 0 to 9999 ASBC. The setup menu contains the 7 optional
parameters. Data can be stored and transferred to the computer by USB interface.
Sample chamber
USB interface
Alignment arrow
Measurement module
Battery compartment

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Display
INDEX:
Low Battery Alarm:
When battery is depleted, the icon will disappear
Setup mode icon:
Indicates meter is in SETUP mode
Measurement mode icon:
Indicates meter is in the measurement mode
Memory mode icon:
Indicates data is stored into memory
Calibration mode icon:
Indicates meter is in the calibration mode
Calibration icon:
Indicates meter is calibrating

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Keypad
INDEX:
KEY
FUNCTION
MEAS|
●Switching the turbidimeter On or Off.
●Press the key to perform a measurement.
●In the calibration or setting mode, exits current mode and returns to measurement.
CAL|
●Press the key to enter the calibration mode.
●Press and hold the key to enter the setup menu.
MI|◄
●Press the key to store current measured value.
●Press ◄key in setup mode to scroll up through menu.
●Press ◄key in setting mode to increase the setting value.
MR|►
●Press the key to view stored data.
●Press ►key in setup mode to scroll down through menu.
●Press ►key in setting mode to decrease the setting value.
ENTER
●Confirms the calibration, setting value or displayed option.

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Inserting the Battery
TB100 portable turbidimeter is packaged with one 9V battery. Before using, insert the battery into the battery compartment, follow the procedure outlined
below.
1. Remove the battery compartment cover from the meter’s backside.
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 battery is depleted, the meter allows you to use the USB cable connected to computer as a temporarily power supply.
Power On/Off
●Press key to turn on the meter, the display shows measuring value and mode icons.
●Press and hold the key for 3 seconds, the meter will turn off.

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Setup Menu
TB100 portable turbidimeter contains an integrated setup menu that allows you to customize each displayed option to meet measurement requirements.
PARAMETER
DESCRIPTION
OPTIONS
DESCRIPTION
DEFAULT
Date and Time
---
Sets the date and time for data log
Sets the default turbidity unit
NTU
Nephelometric Turbidity Unit
●
FNU
Formazin Nephelometric Unit
EBC
Turbidity scale of the European Brewery Commission
ASBC
Turbidity scale of the American Society of Brewing Chemists
Sets the resolution for measurement
Resolution: 0.1
Resolution: 0.01
●
Clear all stored data
Enable
Disable
●
Auto-power off
Enable
Disable
●
Restore factory settings
Enable
Disable
●
Measurement mode
Single measurements
●
Continuous measurements
SETTING THE DATE AND TIME:
1.1 Press and hold the key for 3 seconds to enter setup menu, the display shows DATE/P-1.
1.2 Press ENTER key to confirm, the meter shows current year.

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1.3 Press ◄or ►key to set the year, press ENTER key to confirm. The meter shows current date and time (Format: mm-dd, hh-mm).
1.4 Press ◄or ►key to set the date and time, press ENTER key to confirm until the meter returns to measurement mode. Setting is completed.
SETTING THE TURBIDITY UNIT:
TB100 portable turbidimeter is capable of selecting the four turbidity units, including the NTU, FNU, EBC and ASBC. The default setting is NTU.
2.1 Press and hold the key for 3 seconds to enter setup menu.
2.2 Press ◄or ►key until the display shows UNIT/P-2.
2.3 Press ENTER key to confirm, the meter shows default turbidity unit.
2.4 Press ◄or ►key to select the desired measurement unit.
2.5 Press ENTER key to confirm, the meter returns to measurement mode. Setting is completed.

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SETTING THE RESOLUTION:
The meter contains two resolution options. For the high-accuracy measurement, we recommend that you select the 0.01. The default option is 0.1.
3.1 Press and hold the key for 3 seconds to enter setup menu.
3.2 Press ◄or ►key until the display shows RESO/P-3.
3.3 Press ENTER key to confirm, the meter shows 0.1/RESO.
3.4 Press ◄or ►key to select the desired resolution (0.1 or 0.01 NTU).
3.5 Press ENTER key to confirm, the meter returns to measurement mode. Setting is completed.
CLEAR ALL STORED DATA:
Please refer to page 17 (Clear Stored Data).
AUTO-POWER OFF:
TB100 portable turbidimeter has an auto-power off function that can be set to 15 minutes or OFF. When auto-power off function 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 setup menu.
5.2 Press ◄or ►key until the display shows OFF/P-5.


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5.3 Press ENTER key to confirm, the meter shows NO/OFF indicating that the auto-power off function is disabled.
5.4 Press ◄or ►key to enable or disable this function.
5.5 Press ENTER key to confirm, the meter returns to measurement mode. Setting is completed.
RESTORE FACTORY SETTINGS:
During the calibration, if the meter shows ERR and it cannot be corrected by recalibration, you need to enable the Reset function. Warning: once Reset
function is enabled, all calibration values and selected parameters will be lost or reset. The meter must be calibrated.
6.1 Press and hold the key for 3 seconds to enter setup menu.
6.2 Press ◄or ►key until the display shows RST/P-6”.
6.3 Press ENTER key to confirm, the meter shows NO/RST indicating that do not reset the meter.
6.4 Press ◄or ►key to enable or disable this function.
6.5 Press ENTER key to confirm, the meter returns to measurement mode. Setting is completed.



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SELECTING THE MEASURMENT MODE:
TB100 portable turbidimeter 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 22 (Indexing and matching sample vials).
7.1 Press and hold the key for 3 seconds to enter setup menu.
7.2 Press ◄or ►key until the display shows TEST/P-7.
7.3 Press ENTER key to confirm, the meter shows 1/TEST indicating that the single measurment mode is selected.
7.4 Press ◄or ►key, the meter shows 2/TEST indicating that the continuous measurement mode is selected.
7.5 Select the desired measurement mode, press ENTER key to confirm. The meter returns to measurement mode. Setting is completed.
EXIT THE SETUP MENU:
During the setup mode, press MEAS key, the meter will return to measurement mode immediately.


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Important Notes for Measurement and Calibration
●Do not hold the meter in the hand during 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 that you use 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 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
●TB100 portable turbidimeter is calibrated with Formazin Standards at the factory and does not require user calibration before use.
●Do not shake or agitate the calibration standard violently to prevent air bubbles.
●In order to get accurate measuring results, we recommend that you calibrate the meter at least once a month.
●The meter supports 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. During the calibration process, you are able to modify calibration point or calibration values by pressing the ◄or ►key.
CALIBRATE THE METER:
1. Press CAL key, the display shows 2/CAL indicating that the meter will perform the 2 points calibration.
2. If necessary, press ◄or ►key to select the number of calibration points (2 to 5 points).
3. Press ENTER key to confirm, the display shows 0.02 NTU/CAL1 and continuously flashing.
4. If necessary, press ◄or ►key to select desired calibration point (e.g., 10.00 NTU).
5. 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.

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6. Press ENTER key, the displayed value stops flashing.
7. If necessary, press ◄or ►key to modify the calibration value.
8. Press ENTER key, the vial icon begins flashing.
9. Wait for the measured value to stabilize, the vial icon will disappear on the display.
10. Press ENTER key to confirm, the display shows 0.02 NTU/CAL2 and continuously flashing.
11. Repeat steps 4 to 10 above until the display shows End, the meter returns to measurement mode. Calibration is completed.
EXIT THE CALIBRATION:
During the calibration process, press MEAS key, the meter will return to measurement mode immediately.

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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 11 (Important Notes for
Measurement and Calibration).
SINGLE MEASUREMENT - LOW TURBIDITY SAMPLES:
For the low turbidity samples, we recommend that you use the same vial to perform the measurement and calibration.
1.1. Rinse the vial with approximately 10 ml 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.
1.6 Close the light shield lid. Press 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 before measurement.
2.2 The dilution water can be obtained by filtering deionized water through a <0.45µm 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 using the following formula:

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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 10 “Selecting the 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 MEAS key, the Measure icon begins flashing. The meter is measuring.
During the continuous measurement, the vial icon will always appear on left of display. If the meter resume the single measurement mode, the icon
will disappear.
EXIT THE CONTINUOUS MEASUREMENT MODE:
1. Press and hold the key for 3 seconds to turn off the meter.
2. Turn on the meter again, the meter returns the single measurement mode.
Td(Vs+ Vd)
Vs

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Storing and Recalling Data from Memory
TB100 portable turbidimeter allows up to 100 data sets to be stored and recalled.
MEMORY INPUT:
During the measurement process, press MI key to input measured value into the memory, Memory icon appears on the display.
MEMORY RECALL:
1. Press MR key in the measurement mode, the meter shows the latest stored data. E.g., LOC/1 (Data Log/1).
2. Press ◄key, the meter shows date and time of the stored data (Format: mm-dd, hh-mm).
3. Press ◄key again, the display shows the stored data.
4. Press ◄key, the meter shows the next data sets.
5. After the browsing, press MEAS key to exit the current mode.
If the meter has not any stored data in the memory, press MR key, the meter will show ----.

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Clear Stored Data
When the meter memory is full, the display will show FULL and waiting for user to clear the stored data.
1. Press and hold the key for 3 seconds to enter setup menu.
2. Press ◄or ►key until the display shows CLR/P-4.
3. Press ENTER key to confirm, the meter shows NO/CLR.
4. Press ◄or ►key to select the YES/CLR.
5. Press ENTER key to confirm, the meter returns to measurement mode.

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Communication
Bante Instruments provides a free Data Acquisition System that can be used to transfer data, receive the measuring values or import the data to Excel.
Before using, 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.
WARNING:
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)
Default Calibration Standards
0.02 NTU, 10.00 NTU, 200 NTU, 500 NTU, 1000 NTU or User-Defined
Light Source
Infrared-emitting diode (850 nm wavelength)
Detector
Silicon Photodiode
Stray Light
<0.02 NTU
Sample Vials
60(H) × 25(Dia)mm
Power Off
Manual or Automatic (15 minutes)
Reset Function
Yes
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 turbidimeter 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. Fill the vial using the distilled water (<0.5 NTU). Cap the vial.
2. Wipe the vial with the lint-free cloth to remove waterdrops and fingerprints.
3. Let the vial stand undisturbed for 5 minutes.
4. Place the vial in the sample chamber. Align the mark on the vial with the arrow on the meter.
5. Press MEAS key to begin the measurement.
6. Slowly rotate the vial approximately 45 degrees. Close the light shield lid and record the measured value.
7. Repeat step 6 until the lowest turbidity reading is shown.
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.
1. Repeat the steps above for each vial and record the measured values.
2. Find the closest position of these vials measuring value and mark it.