TN400 Portable Turbidity Meter Kit

5 1

Regular Price:

$890.00
OR
SKU
AI481
  • Description
  • Specs
  • Documents
  • Parts
  • Reviews
  • Warranty
  • The Apera Instruments TN400 Portable Turbidity Meter, Large Colored TFT display with graphic and text guides, Accuracy: ±1% or 0.02 NTU, whichever is greater

    • Accurate and reliable turbidity measuring performance
    • Easy and quick calibration
    • TFT Colored Screen (measurement mode, green in calibration) with graphic and text operation guides
    • U.S. EPA certified, non-toxic, easy-to-use AMCO Clear® polymer standard solutions
    • CE certified and comes with 2-Year Warranty

    The Apera Instruments TN400 Portable Turbidity Meter is equipped with an infrared light source, and a large TFT colored screen, designed for reliable turbidity measurements from 0 to 1000 NTU in various applications both in-field and in-lab e.g. beverage making, environmental monitoring, drinking water analysis, etc.

    The test kit comes with 4 kinds of AMCO Clear® high-molecular polymer turbidity standard solutions (0.02 NTU, 20.0 NTU, 100 NTU, 800 NTU). AMCO Clear® is an EPA approved primary standard for calibration of turbidity sensors that is safe, non-toxic and disposable. It is NIST traceable to particle size/distribution and optical density, and its inherent stability means it does not settle from suspension. 

    The standards have a guaranteed one-year shelf life even if you've opened the bottle and happened not to have recapped it tightly. The convenient submicron polymer suspensions are non-toxic primary calibration standards approved by the US EPA for drinking water analysis for turbidity.

    The meter is CE certified and comes with a 2-year warranty.

  • Measuring Method

    ISO 7027 compliant nephelometric method(90°)

    Measuring Range

    0 to 1000 NTU, automatic range selection:

    0.01 to 19.99 NTU

    20.0 to 99.9 NTU

    100 to 1000 NTU

    Resolution

    0.01/0.1/1 NTU

    Reading Error

    ≤ ±2 % of reading± stray light

    Repeatability

    ≤ ±1% of reading or 0.02 NTU, whichever is greater

    Calibration Standards

    0.02 NTU, 20.0 NTU, 100 NTU, 800 NTU(Polymer)

    Light Source

    Infrared light emitting diode(850nm wavelength)

    Detector

    Silicon photovoltaic

    Display

    TFT Color screen

    Sample Vials

    Φ25×60 mm, high borosilicate glass with screw cap

    Sample Volume

    18 ml

    Operating Temp. Range

    0 to 50˚C (32 to 122˚F)

    Power Supply

    4× AA Alkaline Batteries

    IP Rating

    IP67

    Dimension/Weight

    Meter:(90×203×80)mm / 385 g

    Portable Case:(310×295×110)mm / 1.5 kg

    Quality and Safety Certificate

    ISO9001:2008 & CE

  • Customer Reviews

    1 Item(s)

    The performance to price ratio for the TN400 is the best of all the available turbidity meters of which I am aware.

    Turbidity is a measure of the cloudiness of a fluid associated with the presence of particulate matter. The result is a permanent cloudiness associated with the scattering of light, which is reported in nephelometric turbidity units (NTU). The TN400 measures scattering at 90 degrees to a laser beam at 850 nm (which is the ISO 7027 method). To maximize accuracy, the TN400 comes with four EPA certified reagecon polymer standards with NTU values of 0.02, 20, 100 and 800 NTU for the calibration purpose (see the attached photo). The calibration procedure is simple, nicely automated and outlined in detail in the manual. The accuracy of TN400 is dependent upon carrying out the calibration sequence properly, but the meter requests the standards in order so a mistake is unlikely. You can also use only a pair of standards if you know the approximate NTU value of the unknown samples. Because linear interpolation is used between the two closest standards, this approach does not diminish accuracy provided the measurement falls between the two calibration standards. An important requirement of all high quality turbidity meters is to minimize scattering between the walls of the sample chamber and the sample vial, and this can be accomplished by putting a thin coating of silicon oil on the outside of the sample vials. Silicon oil is included along with the standards (see upper right of first figure). I found that using silicon oil was critical for accuracy below 20 NTU. At higher values, the silicon oil is much less critical. Because most work is done below 20 NTU so the extra effort is usually required. The silicon oil does not evaporate and will stay on the outside for an extended period so I found that it was not necessary to do this each time. I used some formazin standards and confirmed that the meter is accurate to ±2 NTU units in the region 100 - 800. The manual reports a higher accuracy than that, but I was unable to confirm it independently because the standards have an uncertainty of ±1. The reproducibility is excellent with the silicon oil applied and calibration is done prior the measurements. Turbidity is an excellent method of measuring the particulates in tap water, and checking the distilled water. Having a 0.02 NTU standard is critical for measuring my samples accurately. In our laboratory, we use turbidity to measure the growth process of archaea that we study for basic research studies. These one cell creatures scatter light like small particles and thus growth can be monitored very accurately by using turbidity. This meter is a welcome addition to our molecular biology laboratory. The performance to price ratio for the TN400 is the best of all the available turbidity meters of which I am aware. The TN400 is easy to use and calibration is simple. I recommend the TN400 with enthusiasm for personal, commercial or basic research applications. Review by Juan Peng • (Posted on 4/24/2017)
    Quality

    1 Item(s)

    Write A Review For TN400 Portable Turbidity Meter Kit

    How do you rate this product? *

    • Quality
  • We warrant this instrument to be free from defects in material and workmanship and agree to repair or replace free of charge, at the option of APERA INSTRUMENTS, LLC, any malfunctioned or damaged product attributable to the responsibility of APERA INSTRUMENTS, LLC for a period of TWO YEARS for the instrument from the delivery.

    This limited warranty does NOT cover any issues due to:

    • Accidental damage
    • Improper use
    • Normal wear and tear
    • Transportation
    • Storage
    • Failure to follow the product instructions
    • Unauthorized maintenance, modifications, combination or use with any products, materials, processes, systems or other matter
    • Unauthorized repair
    • External causes such as accidents, abuse, or other actions or events beyond our reasonable control.
     
  • Description
  • Specs
  • Documents
  • Parts
  • Reviews
  • Warranty
  • The Apera Instruments TN400 Portable Turbidity Meter, Large Colored TFT display with graphic and text guides, Accuracy: ±1% or 0.02 NTU, whichever is greater

    • Accurate and reliable turbidity measuring performance
    • Easy and quick calibration
    • TFT Colored Screen (measurement mode, green in calibration) with graphic and text operation guides
    • U.S. EPA certified, non-toxic, easy-to-use AMCO Clear® polymer standard solutions
    • CE certified and comes with 2-Year Warranty

    The Apera Instruments TN400 Portable Turbidity Meter is equipped with an infrared light source, and a large TFT colored screen, designed for reliable turbidity measurements from 0 to 1000 NTU in various applications both in-field and in-lab e.g. beverage making, environmental monitoring, drinking water analysis, etc.

    The test kit comes with 4 kinds of AMCO Clear® high-molecular polymer turbidity standard solutions (0.02 NTU, 20.0 NTU, 100 NTU, 800 NTU). AMCO Clear® is an EPA approved primary standard for calibration of turbidity sensors that is safe, non-toxic and disposable. It is NIST traceable to particle size/distribution and optical density, and its inherent stability means it does not settle from suspension. 

    The standards have a guaranteed one-year shelf life even if you've opened the bottle and happened not to have recapped it tightly. The convenient submicron polymer suspensions are non-toxic primary calibration standards approved by the US EPA for drinking water analysis for turbidity.

    The meter is CE certified and comes with a 2-year warranty.

    Measuring Method

    ISO 7027 compliant nephelometric method(90°)

    Measuring Range

    0 to 1000 NTU, automatic range selection:

    0.01 to 19.99 NTU

    20.0 to 99.9 NTU

    100 to 1000 NTU

    Resolution

    0.01/0.1/1 NTU

    Reading Error

    ≤ ±2 % of reading± stray light

    Repeatability

    ≤ ±1% of reading or 0.02 NTU, whichever is greater

    Calibration Standards

    0.02 NTU, 20.0 NTU, 100 NTU, 800 NTU(Polymer)

    Light Source

    Infrared light emitting diode(850nm wavelength)

    Detector

    Silicon photovoltaic

    Display

    TFT Color screen

    Sample Vials

    Φ25×60 mm, high borosilicate glass with screw cap

    Sample Volume

    18 ml

    Operating Temp. Range

    0 to 50˚C (32 to 122˚F)

    Power Supply

    4× AA Alkaline Batteries

    IP Rating

    IP67

    Dimension/Weight

    Meter:(90×203×80)mm / 385 g

    Portable Case:(310×295×110)mm / 1.5 kg

    Quality and Safety Certificate

    ISO9001:2008 & CE

    Measuring Method

    ISO 7027 compliant nephelometric method(90°)

    Measuring Range

    0 to 1000 NTU, automatic range selection:

    0.01 to 19.99 NTU

    20.0 to 99.9 NTU

    100 to 1000 NTU

    Resolution

    0.01/0.1/1 NTU

    Reading Error

    ≤ ±2 % of reading± stray light

    Repeatability

    ≤ ±1% of reading or 0.02 NTU, whichever is greater

    Calibration Standards

    0.02 NTU, 20.0 NTU, 100 NTU, 800 NTU(Polymer)

    Light Source

    Infrared light emitting diode(850nm wavelength)

    Detector

    Silicon photovoltaic

    Display

    TFT Color screen

    Sample Vials

    Φ25×60 mm, high borosilicate glass with screw cap

    Sample Volume

    18 ml

    Operating Temp. Range

    0 to 50˚C (32 to 122˚F)

    Power Supply

    4× AA Alkaline Batteries

    IP Rating

    IP67

    Dimension/Weight

    Meter:(90×203×80)mm / 385 g

    Portable Case:(310×295×110)mm / 1.5 kg

    Quality and Safety Certificate

    ISO9001:2008 & CE

  • Measuring Method

    ISO 7027 compliant nephelometric method(90°)

    Measuring Range

    0 to 1000 NTU, automatic range selection:

    0.01 to 19.99 NTU

    20.0 to 99.9 NTU

    100 to 1000 NTU

    Resolution

    0.01/0.1/1 NTU

    Reading Error

    ≤ ±2 % of reading± stray light

    Repeatability

    ≤ ±1% of reading or 0.02 NTU, whichever is greater

    Calibration Standards

    0.02 NTU, 20.0 NTU, 100 NTU, 800 NTU(Polymer)

    Light Source

    Infrared light emitting diode(850nm wavelength)

    Detector

    Silicon photovoltaic

    Display

    TFT Color screen

    Sample Vials

    Φ25×60 mm, high borosilicate glass with screw cap

    Sample Volume

    18 ml

    Operating Temp. Range

    0 to 50˚C (32 to 122˚F)

    Power Supply

    4× AA Alkaline Batteries

    IP Rating

    IP67

    Dimension/Weight

    Meter:(90×203×80)mm / 385 g

    Portable Case:(310×295×110)mm / 1.5 kg

    Quality and Safety Certificate

    ISO9001:2008 & CE

  • Compatibility

  • Customer Reviews

    The performance to price ratio for the TN400 is the best of all the available turbidity meters of which I am aware.

    Turbidity is a measure of the cloudiness of a fluid associated with the presence of particulate matter. The result is a permanent cloudiness associated with the scattering of light, which is reported in nephelometric turbidity units (NTU). The TN400 measures scattering at 90 degrees to a laser beam at 850 nm (which is the ISO 7027 method). To maximize accuracy, the TN400 comes with four EPA certified reagecon polymer standards with NTU values of 0.02, 20, 100 and 800 NTU for the calibration purpose (see the attached photo). The calibration procedure is simple, nicely automated and outlined in detail in the manual. The accuracy of TN400 is dependent upon carrying out the calibration sequence properly, but the meter requests the standards in order so a mistake is unlikely. You can also use only a pair of standards if you know the approximate NTU value of the unknown samples. Because linear interpolation is used between the two closest standards, this approach does not diminish accuracy provided the measurement falls between the two calibration standards. An important requirement of all high quality turbidity meters is to minimize scattering between the walls of the sample chamber and the sample vial, and this can be accomplished by putting a thin coating of silicon oil on the outside of the sample vials. Silicon oil is included along with the standards (see upper right of first figure). I found that using silicon oil was critical for accuracy below 20 NTU. At higher values, the silicon oil is much less critical. Because most work is done below 20 NTU so the extra effort is usually required. The silicon oil does not evaporate and will stay on the outside for an extended period so I found that it was not necessary to do this each time. I used some formazin standards and confirmed that the meter is accurate to ±2 NTU units in the region 100 - 800. The manual reports a higher accuracy than that, but I was unable to confirm it independently because the standards have an uncertainty of ±1. The reproducibility is excellent with the silicon oil applied and calibration is done prior the measurements. Turbidity is an excellent method of measuring the particulates in tap water, and checking the distilled water. Having a 0.02 NTU standard is critical for measuring my samples accurately. In our laboratory, we use turbidity to measure the growth process of archaea that we study for basic research studies. These one cell creatures scatter light like small particles and thus growth can be monitored very accurately by using turbidity. This meter is a welcome addition to our molecular biology laboratory. The performance to price ratio for the TN400 is the best of all the available turbidity meters of which I am aware. The TN400 is easy to use and calibration is simple. I recommend the TN400 with enthusiasm for personal, commercial or basic research applications. Review by Juan Peng • (Posted on 4/24/2017)
    Quality

    Write A Review For TN400 Portable Turbidity Meter Kit

    How do you rate this product? *

    • Quality
  • We warrant this instrument to be free from defects in material and workmanship and agree to repair or replace free of charge, at the option of APERA INSTRUMENTS, LLC, any malfunctioned or damaged product attributable to the responsibility of APERA INSTRUMENTS, LLC for a period of TWO YEARS for the instrument from the delivery.

    This limited warranty does NOT cover any issues due to:

    • Accidental damage
    • Improper use
    • Normal wear and tear
    • Transportation
    • Storage
    • Failure to follow the product instructions
    • Unauthorized maintenance, modifications, combination or use with any products, materials, processes, systems or other matter
    • Unauthorized repair
    • External causes such as accidents, abuse, or other actions or events beyond our reasonable control.
     
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