1 INTRODUCTION
Thank you for purchasing Apera Instruments TN500 Portable Turbidity Meter (hereafter referred to as the
instrument). The instrument uses tungsten filament lamp as the light source and 90° scattering method,
which is compliant with U.S EPA 180.1 method for the determination of turbidity in drinking, ground,
surface, and saline waters, domestic and industrial wastes. It is suitable for on-site and laboratory use.
The instrument provides accurate results with simple measurement, calibration, and data management,
giving you unparalleled confidence in test results and ease of use.
Intelligent functions such as automatic calibration, operation navigation, parameter setup, real-time
clock display, calibration date check, automatic power off, low voltage indication, and a replaceable
tungsten filament lamp.
Large TFT color screen with blue background for measurement mode, green background for
calibration mode.
Operation guidance and reminders in the process of calibration, measurement and parameter setting.
TruRead
TM
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
TM
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.
Zero turbidity error reminder: the instrument has zero-point calibration and zero-point error reminder
to ensure measurement accuracy for low turbidity solutions.
200 sets of data storage with USB data output to PC (Windows-based).
3.7V rechargeable lithium battery can supply power for over 20 hours of continuous measurement.
The battery life is 5 times longer compared with tungsten lamp turbidimeter in the market using AA
alkaline batteries.
Multi-language operating system, including English, Spanish & Simplified Chinese.
The instrument’s structure meets IP67 water-resistant grade and is suitable for use in harsh
environments.
Everything comes in a rugged carrying case, including accessories such as calibration solutions, test
vials, USB charger, and more.
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