Bante Instruments TB200 User manual

TB200 Laboratory Turbidity Meter
Instruction Manual
Bante Instruments Inc.

1
Contents
Table of Contents
Introduction ……………………………………………………………………………………………………………………………………..…… 2
Unpacking ……………………………………………………………………………………………………………………………………..……...... 2
Meter overview ……………………………………………………………………………………………………………………………………….. 3
Keypad ……………………………………………………………………………………………………………………………………..…………... 3
Switching the meter on and off ……………………………………………………………………………………………………………………… 3
Prior to use …………………………………………………………………………………………………………………………………………….. 3
Setup menu ……………………………………………………………………………………………………………………………………..……. 4
Setting the default option ……………………………………………………………………………………………………………………………. 4
Setting the date and time ……………………………………………………………………………………………………………………………. 5
Setting the password …………………………………………………………………………………………………………………………………. 5
Unlock the password …………………………………………………………………………………………………………………………………. 5
Restore factory settings ……………………………………………………………………………………………………………………………… 6
Measurement and calibration hints ……………………………………………………………………………………………………………. 7
Turbidity calibration ……………………………………………………………………………………………………………………………….. 7
Turbidity measurement ……………………………………………………………………………………………………………………………. 9
Low turbidity samples (< 200 NTU) ………………………………………………………………………………………………………………….. 9
High turbidity samples (>2000 NTU) …………………………………………………………………………………………………………….…… 9
Total suspended solids measurement …………………………………………………………………………………………………………. 10
Calculating the TSS factor …………………………………………………………………………………………………………………………… 10
Setting the TSS factor ………………………………………………………………………………………………………………………………… 10
TSS measurement ………………………………………..…………………………………………………………………………………………… 10
Data management ………………………………………………………………………………………………………………………………….. 11
Storing a measurement result ……………………………………………………………………………………………………………………….. 11
Viewing the data log ……………………………………………………………………………………………………………………………..…… 11
Deleting the data log …………………………………..…………………………………………………………………………………………..…. 11
Communication …………………………………………………………………………………………………………………………………….. 12
Receiving the data …………………………………….…….……………………………………………………………………………………..… 12
Create the Excel file ………………………………………………………………………………………………………………………………….. 12
Appendix ……………………………………………………………………………………………………………………………………..…….... 13
Indexing a sample vial ……………….………………………………………………………………………………………………………………. 13
Matching the sample vials …………………………………………………………………………………………………………………………... 13
Preparing the formazin standards …………………………………………………………………………………………………………………… 13
Specifications ……………………………………………………………………………………………………………………………………..….. 14
Optional accessories …………………………………………………………………………………………………………………………………. 14

2
Overview
Introduction
Thank you for selecting the TB200 laboratory turbidity meter. This meter operates on the nephelometric principle of turbidity measurement and is
designed to meet the criteria specified in ISO 7027. 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 the following conditions.
•Relative humidity is less than 80%.
•Ambient temperature is greater than 0° C/32° F and less than 50° C/122° F.
•No potential magnetic fields and ambient light interference.
The following list describes the standard components of meter. After the unpacking, please check all components are complete. If any are
damaged or missing, please contact the supplier.
The sample vial in the measurement chamber has been indexed with the 0.02 and 10 NTU standards at the factory.
•TB200 turbidity meter •Calibration standards •Sample vials •Lint-free cloth
•DC12V power adapter

3
Overview
Meter Overview
Keypad
Name and Icon
Function
• Switches the meter On/Off.
• Exits the calibration or setting and returns to the measurement screen.
• 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 data log.
• Decrease value or scroll down through the menu item.
• Confirms the calibration, settings or displayed options.
• Starts measurement.
• Locks the measured value.
Switching the Meter On and Off
•Insert the connector of power adapter into the power socket on the rear panel of the meter.
• Press and release the key to switch on the meter.
• Press and hold the key for 3 seconds to switch off the meter.
Prior to Use
Switch on the meter and allow the meter to warm up for at least 15 minutes.
1. Light shield lid
2. Measurement chamber
3. TFT display
4. Membrane keypad
5. Power socket
6. USB interface

4
Setup Menu
Setup Menu
The TB200 turbidity meter contains an integrated setup menu that is used to customize the displayed option to meet measurement requirement.
The following table describes the functions of each menu item.
Menu
Options
Description
Default
Date and Time
Year, month, day, hour, minute
Set the date and time
---
Measurement Mode
NTU
Nephelometric turbidity unit
NTU
FNU
Formazin nephelometric unit
EBC
Turbidity unit of the European Brewery Commission
ASBC
Turbidity unit of the American Society of Brewing Chemists
mg/L
Total suspended solids unit
Resolution
0.1
Set the resolution of the turbidity measurement
0.1
0.01
TSS Factor
---
Set the conversion factor for measurement of the total
suspended solids
0.13
Auto-Power Off
2 hours
When the option is enabled, the meter will automatically
switch off if no key is pressed within 2 hours
Disable
Disable
Delete Data
Delete all stored data
Delete all data logs in the memory
Cancel
Cancel
Brightness
Low, mid, high
Set the brightness level of backlight
---
Password
Enable
Set the password protection for calibration and settings
Disable
Disable
Reset
Enable
Reset the meter to factory default settings
Disable
Disable
Setting the default option
1.1 Press and hold the key for 3 seconds to enter the setup menu.
1.2 Press the ◄/ ►key to select a menu item, press the Enter key to confirm.
1.3 Press the ◄/ ►key to select a desired option, press the Enter key to confirm and return to the measurement mode.

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Setup Menu
Setting the date and time
2.1 Press and hold the key for 3 seconds to enter the setup menu.
2.2 Press the Enter key, the screen shows “Year-Month-Day”.
2.3 Press the ◄/ ►key to set the “Year”, press the Enter key to confirm and move the cursor to “Month”.
2.4 Repeat the step 2.3 to set the date and time. When the setting is completed, the meter will return to the measurement mode automatically.
Setting the password
The password protection is used to prevent the unauthorized calibration and settings. If enabled, the user must enter a 4-digit password to access
the calibration or settings.
3.1 Press and hold the key for 3 seconds to enter the setup menu.
3.2 Press the ◄key to select the “Password”, press the Enter key to confirm.
3.3 Press the ◄key to select the “Enable”. Press the Enter key, the screen shows 0000 and the cursor appears below the first digit.
3.4 Press the ◄/ ►key to set the password, press the Enter key to confirm every digit until the meter returns to the measurement mode.
Unlock the password
If your password has been enabled, the meter will show "Password Protection" screen when pressing the Cal key. Press the ◄/ ►key to
enter the password, press the Enter key to confirm. If the password is correct, the meter will unlock immediately.
If you forgot your password, please contact the supplier and providing the serial number of meter.

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Setup Menu
Restore factory settings
The Factory Reset option is used to restore the meter back to default settings. If enabled, all of the calibration data and selected options will be
lost or reset, the meter must be recalibrated.
4.1 Press and hold the key for 3 seconds to enter the setup menu.
4.2 Press the ◄key to select the “Reset”, press the Enter key to confirm.
4.3 Press the ◄key to select “Restore factory settings”. Press the Enter key, the screen shows “Are you sure you want to restore factory
settings ?”.
4.4 Press the Enter key to confirm or the ESC key to cancel.
Exit the settings
To exit the setup menu without saving changes, press the ESC key.

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Measurement and Calibration
Measurement and Calibration Hints
•Ensure that the sample in vial is homogeneous and preventing air bubbles.
•Before starting the measurement, the outside of vial must be clean and dry. Wipe the vial with a lint-free cloth to remove fingerprints and
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.
•Ensure that the vial is positioned in the measurement chamber, the mark on the vial must be aligned with the arrow on the meter.
•To prevent the errors from ambient light interference, do not use the meter in direct sunlight. Always close the light shield lid during the.
measurement and calibration.
•The vial and cap must be cleaned thoroughly with deionised water after each measurement. Any residues can cause inaccurate readings.
Turbidity Calibration
•The TB200 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 7 points with minimum of 2 points, the default calibration points include the 0.02, 10.00, 200,
500, 1000, 1500 and 2000 NTU. For better accuracy, ensure that selecting a calibration point close to the sample value you are measuring.
Calibrating the meter
1. Press the Cal key to enter the calibration mode, the meter prompts you to select the “Number of Calibration Points”.
2. Press the ◄/ ►key to select an applicable option (2 to 7 points). Press the Enter key, the screen shows first calibration point “0.02 NTU”.
If necessary, press the ◄/ ►key to select a calibration point close to the sample value you are measuring.
Arrow
Mark

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Measurement and Calibration
3. Take out the corresponding calibration standard from the accessory box. Wipe the vial with a lint-free cloth to remove fingerprints.
4. Hold the vial cap and gently inverting vial several times. Ensure that the calibration standard is homogeneous and no air bubbles.
5. Insert the calibration standard into the measurement chamber, the mark on the vial cap aligns with the arrow on the meter. Close the light
shield lid.
6. Press the Enter key, the meter begins the calibration. The “Calibrating” icon shows on the upper right corner of the screen.
7. Wait for the reading to stabilize, the meter automatically shows the next calibration point.
8. If necessary, press the ►key to select an applicable calibration point.
9. Repeat steps 3 through 6 until the screen shows “Calibration is Completed”. The meter returns to the measurement mode automatically.
Exit the calibration
To exit the calibration mode without saving the calibration, press the ESC key.
Clean
Mix
Align arrows

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Measurement and Calibration
Turbidity Measurement
An accurate turbidity measurement depends on good measurement techniques. Factors such as clean sample vials, positioning of vial in the
measurement chamber, covering the vial with the light shield lid, meter calibration, removal of bubbles, etc. For more information, please refer to
page 7 “Measurement and Calibration Hints”.
Low turbidity samples (< 200 NTU)
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 Wipe the vial with the lint-free cloth to remove waterdrops and fingerprints. Ensure that the outside of vial is dry and clean.
1.4 Place the vial in the measurement chamber. Align the mark on the vial with the arrow on the meter.
1.5 Close the light shield lid. Press the Meas key, the meter begins the measurement, the icon shows on screen.
1.6 Wait for the reading to stabilize, the icon will automatically switch to .
1.7 Press the Meas key, the meter will take a measurement again.
In the measurement process, press the key. The measured value will be locked or unlocked.
High turbidity samples (>2000 NTU)
For the high turbidity samples, the solution must be diluted prior to measurement. The dilution water can be obtained by filtering deionized water
through a < 0.45µ m filter membrane.
2.1 Repeat steps 1.1 through 1.5 above and record the measured value.
2.2 Calculate the true turbidity of the original sample using 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)
Td(Vs+ Vd)
Vs