TN500 White Light Turbidimeter with GLP Data Management and USB Output


Plus 19% MwSt. DE
SKU: 28APE190323 / AI483 Categories: , , , ,

The Apera Instruments TN500 provides fast and reliable measurements of the turbidity (turbidity) of liquids. The instrument is equipped with a tungsten filament lamp and operates via a 90° nephelometric scattering method that is consistent with U.S. EPA 180.1 method for determining turbidity in drinking, ground, surface, and saline waters, as well as in domestic and industrial wastes. It is well suited for rapidly settling samples or fluctuating or variable measurements thanks to TruRead™ measurement mode. The TN500 has a memory function for up to 200 data sets and can be connected to a PC via USB to read out the data or perform real-time storage. The large LCD with progress indicator and intuitive operating instructions in picture and text form make it user-friendly and easy to operate. It is suitable for use on site or in the laboratory.

  • Performs accurate, fast and reliable turbidity measurements
  • Large TFT color screen with clear on-screen instructions for easy operation
  • EPA-certified, non-toxic, and easy-to-use AMCOClear® polymer standard solutions.
  • TruRead™ measurement mode for sample solutions with fast settling and continuous measurement changes
  • Up to 200 data sets can be stored and read out via USB
  • Waterproof housing according to IP67 enables application in outdoor use e.g. for drinking water analysis, environmental monitoring, etc.
  • Convenient storage and transport in case together with calibration solution, sample vials and accessories

The TN500 is CE certified and has a 2 year warranty.

Technical Specifications

Measuring method U.S. EPA 180.1 compliant nephelometric method (measurement of scattered radiation from white light at 90°)
Light source Tungsten incandescent lamp (400nm – 600nm)
Measuring range 0 ~ 1000 NTU (FNU), automatic range selection:

0.01 ~ 19.99 NTU (FNU)

20.0 ~ 99.9 NTU (FNU)

100 ~ 1000 NTU (FNU)

Accuracy ≤ ±2% of reading ± stray light
Reproducibility ≤ ±1% of reading or 0.02 NTU, whichever is greater
Resolution 0.01 / 0.1 / 1 NTU (FNU)
Stray light ≤ 0.02 NTU (FNU)
Calibration standard 0, 20, 100, 400, 800 NTU (FNU) AMCO Polymer or Formazin
Light detector Silicon photocell
Measuring modes Normal measurement and TruRead™ measurement
Data storage 200 measurement groups
Interface USB
Calibration memory Calibration date and time
Display TFT color display
Measuring cell ø25×60 mm, borosilicate glass with screw cap
Test volume 18 ml
Energy supply 3.7V rechargeable lithium battery
Operating conditions Temperature: 0 – 50°C;rel. Humidity: 0 – 90% at 30°C,

0 – 80% at 40°C, 0 – 70% at 50°C, no condensation

Storage conditions Gauge: -40 to 60°C (-40 to 140°F)

Calibration solutions: 5 to 30°C (41 to 86°F)

IP rating IP67
Security guidelines ISO9001:2015 and CE
Dimensions (WxLxH)


Meter: (90×203×80) mm/ 385 g

Transport case: (310×295×110) mm/ 1.5 kg

scope of delivery

A complete set contains:

  • TN500
  • Calibration solutions (0.00 NTU, 20.0 NTU, 100 NTU, 800 NTU, 800 NTU)
  • 6 sample cuvettes
  • Silicone oil
  • Microfiber cloth
  • USB stick with software
  • USB power supply
  • manual
  • Carrying case


German TN500 DE
English TN500 EN

You can find the current software under Downloads.