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Apera TN500 uses a tungsten filament lamp as the light source and 90° scattering method, which is compliant with the U.S EPA 180.1 method for the determination of turbidity in drinking, ground, surface, and saline waters, domestic and industrial wastes. The instrument is designed for water quality professionals, offering long-term reliability in high-accuracy turbidity measurement with an intuitive operation system, simple calibration, and GLP data management.

Premium-quality tungsten filament lamp light source

Compliant with the U.S EPA 180.1 method for the determination of turbidity in drinking, ground, surface, and saline waters, domestic and industrial wastes. The lamp is replaceable.

TruRead™ measurement mode

Automatically takes multiple consecutive readings, and calculate the 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.

EPA approved AMCO® standards

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.

Intuitive Operation System

The meter is equipped with a large TFT color screen with plain language and graphic navigation, supporting English, Spanish, and Chinese. Intelligent functions such as automatic calibration, real-time clock display, calibration date check, auto. power off, and low battery reminder are built-in to ensure ease of use.

GLP Data Management

200 sets of data storage with USB data output to PC (Windows-based only)

Zero turbidity error reminder

The zero-point calibration and zero-point error reminder functions ensure the high accuracy for low-turbidity (<1 NTU) sample testing

Rechargeable battery

3.7V rechargeable lithium battery can supply power for over 20 hours of continuous measurement. The battery life is 5 times longer compared with other products in the market.

TN500 Portable White Light Turbidity Meter with GLP Data Logger, EPA 180.1

    • Measurement Method: 90°scattering measurement, U.S EPA180.1 compliant
    • Light Source: Tungsten filament lamp
    • 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: 3.7V Rechargeable lithium battery
    • 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
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