The Instrument Choice Team of Scientists regularly reviews new and popular products, so when searching for the perfect scientific instrument for your application, you can make more informed decisions.
This edition examines TN400 Portable NTU Turbidity Meter Kit. The TN400 is a highly popular NTU turbidity meter with an impressive list of features and specifications.
About Apera
For 30 years, Apera Instruments has been dedicated to developing high-quality sensors for measuring and monitoring water quality. This long term commitment has led to the creation of highly reliable and accurate instruments for thousands of applications worldwide.
Introducing the TN400 Portable NTU Turbidity Meter
The Apera TN400 is an NTU turbidity meter with a broad measurement range designed for portability, reliability and accuracy. The TN400 kit comes supplied with all the tools required to take turbidity measurements, including:
- The TN400 turbidity meter
- Four vials of high-molecular polymer turbidity standard solutions (0.02 NTU, 20.0 NTU, 100 NTU, 800 NTU)
- 10mL bottle of silicon oil
- Three sample vials
- A cloth
- Four AA batteries
- A screwdriver for opening the battery compartment
- A rugged, hardshell carrying case with foam moulded insert; and
- A complete instruction manual.
Key Features of the TN400 Portable NTU Turbidity Meter
Figure 1 Apera TN400 portable NTU turbdidity meter: green background
for calibration mode and blue background for measurement mode
- User-Friendly Smart Functions: Functions include; automatic calibration, operating instructions, automatic power-off, and low voltage display.
- Intuitive Operation: The extra-large TFT colour screen is easy to read and colour coded with a blue background in measuring mode and green background for calibration mode. On-screen prompts guide measurement and calibration for ease of use.
- Calibration: The test kit has four sealed vials of polymer turbidity standard solutions (0.02 NTU, 20.0 NTU, 100 NTU, 800 NTU) for easy calibration. These solutions are EPA approved and primary standards for the calibration of turbidity sensors. They are safe, non-toxic and disposable. The standard solutions are NIST traceable to particle size/distribution and optical density, with inherent stability to prevent them settling out of suspension.
- Light Source: The TN400 utilises an ISO7027 compliant infrared light source to perform measurements.
- High Water and Dust Resistance: The design of the TN400 meets the requirements of IP67 level of protection and is suitable for use in the field and on-site use.
TN400 Portable NTU Turbidity Meter Specifications
TN400 Portable NTU Turbidity Meter Specifications |
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Measuring Method |
ISO 7027 compliant nephelometric method（90°） |
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Measuring Range |
0 - 1000 NTU, automatic range selection: |
|
Resolution |
0.01 / 0.1 / 1 NTU |
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Reading Error |
≤ ±2 % of reading± stray light |
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Repeatability |
≤ ± 1% of reading or 0.02 NTU, the greater of the two |
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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 Colour screen |
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Sample Vials |
25×60 mm, high borosilicate glass with a screw cap |
|
Sample Volume |
18 ml |
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Operating Temperature Range |
0-50℃ |
|
Power Supply |
4 x AA Alkaline Batteries |
|
IP Rating |
IP67 |
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Dimension/Weight |
Meter: 90×203×80mm / 385 g |
|
Quality and Safety Certificate |
ISO9001:2015 & CE |
TN400 Portable NTU Turbidity Meter Applications
Instrument Choice’s customers use this meter for:
- Environmental monitoring
- Water treatment
- Industrial applications; and
- Beverage making.
Conclusion
The TN400 is versatile, portable and robust and well-suited for most turbidity measuring tasks.
Our scientists’ final verdict of the TN400 NTU Turbidity Meter?
“We thoroughly recommend the TN400 NTU turbidity meter - it takes the (pun-intended) haziness out of turbidity measurements! The large screen, guided operation, all-inclusive kit and broad 0 to 1000NTU measurement range makes this meter perfect for virtually any turbidity measuring task.”
Want more information on the TN400? Speak with an Instrument Choice Scientist: Call 1300 737 871 or email customer-service@instrumentchoice.com.au.
Appendix 1: TN400 Portable NTU Turbidity Meter Videos
How to Calibrate the TN400 Portable Turbidity Meter (IC-TN400)
Unboxing the TN400 Portable Turbidity Meter Kit (IC-TN400)