TN480 Portable Turbidity Meter with GLP Data Logger


  • The infrared light source is especially ideal for testing solutions with color.
  • TruReadTM measurement mode automatically takes multiple consecutive readings, and calculate their average, minimum and maximum value, as well as displaying each set of data in a brief test report. TruRead is a much better way to determine the true turbidity of your samples, rather than relying on just one reading. It’s especially suitable for sample solutions with rapid settling and continuous measurement changes.
  • The kit comes with AMCO high-molecular polymer turbidity standard solutions (0, 20, 100, 400, 800 NTU), which are EPA approved primary standards that are safe, non-toxic and disposable, and have a guaranteed one-year shelf life. It is NIST traceable to particle size/distribution and optical density, and its inherent stability means it does not settle from suspension. Store the standards at room temperature. They must not be frozen.
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Apera TN480 uses an infrared light source and 90° scattering method, which is compliant with the ISO 7027 method.  The TN480  instrument is designed for water quality professionals, offering long-term reliability in high-accuracy turbidity measurement with an intuitive operating system, simple calibration, and GLP data management.

  • Zero turbidity error reminder: the instrument has zero-point calibration and zero-point error reminder to ensure high accuracy for low-turbidity solutions.
  • Large TFT color screen with simple operation guide, supporting English, Spanish, and Chinese.
  • 200 sets of data storage with USB data output to PC (Windows-based), real-time clock display, calibration date check, automatic power off, and low battery reminder.
  • Everything comes in a rugged carrying case, including AMCO calibration solutions (0, 20, 100, 400, 800 NTU), 6 pieces of sample vials, USB cable, silicone oil, a microfiber wipe, PC-Link software flash drive, and user manual.


We warrant TN480 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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Specification Description
Measurement Method 90° scattering measurement, ISO 7027 compliant
Light Source Infrared
Measuring Range 0 to 1000 NTU (FNU), automatic range switch

0.01 to 19.99 NTU(FNU)

20.0 to 99.9 NTU(FNU)

100 to 1000 NTU(FNU)

Accuracy ≤ ±2% of reading+ stray light
Repeatability ≤ ± 1% of reading or 0.02 NTU(FNU) (the greater of the two)
Resolution 0.01/0.1/1 NTU (FNU)
Stray Light ≤0.02 NTU (FNU)
Calibration Standard AMCO Polymer or Formazin Solution:0, 20, 100, 400 and 800NTU (FNU)
Detector Silicon photovoltaic
Measuring Mode Normal measurement and TruRead measurement
Data Storage 200 groups
Data Output USB to PC
Calibration Record Calibration date and time
Display TFT color screen
Sample Vial Φ25×60 mm,high borosilicate glass with lid
Sample Vial Volume 18 ml
Power supply 3-AAA alkaline batteries
Working Condition Temperature: 0 to 50°C(32°F to 122°F);Relative humidity:

0 to 90% at 30°C, 0 to 80%at 40°C, 0 to 70% at 50°C, no condensation

Instrument sealing grade IP67
Certificates ISO9001:2015 and CE
Limited Warranty 2 years
Dimension and Weight Meter: (90×203×80) mm/385g

Test Kit: (310×295×110) mm/1.5kg

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TN480 Portable Turbidity Meter with GLP Data Logger - ISO 7027 Compliant

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TN480 Portable Turbidity Meter with GLP Data Logger

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