Portable Turbidity meter LED Light Source Apera TN 400

 Portable Turbidity meter LED Light Source Apera TN 400

The  Portable Turbidity meter LED Light Source Apera TN 400 Source TN 400 is a robust and portable turbidity meter that employs an infrared LED light source and complies with ISO7027 and DIN EN 27027 standards. It is engineered for high-accuracy turbidity measurements across various applications such as drinking water testing, wastewater monitoring, and environmental fieldwork.

Features

ISO Compliant Optical System

This model uses an infrared LED at 860±30 nm, in compliance with ISO7027 and DIN EN 27027. This standardised method eliminates the effect of sample color, ensuring more reliable turbidity readings.

Wide Measuring Range with Auto-Ranging

The 0 to 1000 NTU (FNU) range is ideal for both low and high turbidity samples. Moreover, the auto-ranging function adapts seamlessly to changing sample concentrations.

High Accuracy and Resolution

The TN400 provides a resolution of 0.01 NTU (0–19.99), 0.1 NTU (20.0–99.9), and 1 NTU (100–1000), ensuring fine precision across all levels. Its ±2% of reading plus stray light accuracy delivers reliable and consistent results.

User-Friendly Interface

With its TFT color screen, users can easily view data in real time. This modern interface improves visibility and usability, particularly in the field.

Standardised Calibration Options

Calibration is supported using either AMCO T200-1 calibration solution kits or Formazin standard solutions at five points: 0, 20, 100, 400, and 800 NTU. This ensures reproducible and accurate calibration every time.

Durable Sample Handling

The meter includes a Φ25 x 60 mm borosilicate glass cuvette with a secure lid, which is resistant to scratches and ensures accurate optical alignment during measurement.

Battery Operated for Portability

The TN400 runs on 4 AA alkaline batteries, making it convenient for use in remote or outdoor testing environments without relying on a rechargeable power source.

Specifications

Optical System

• Light Source: Infrared LED, 860±30 nm

• Regulatory Compliance: ISO7027, DIN EN 27027

Turbidity Measurement

• Range: 0 to 1000 NTU (FNU), auto-ranging

• Resolution:

  • 0.01 NTU (0–19.99)

  • 0.1 NTU (20.0–99.9)

  • 1 NTU (100–1000)

• Accuracy: ±2% of reading plus stray light

• Calibration: 0/20/100/400/800 NTU (AMCO or Formazin)

Display & Sample Handling

• Screen: TFT color screen

• Cuvette: Φ25 x 60 mm, 18 mL, borosilicate glass with lid

Power

• Power Supply: 4 x AA alkaline batteries

Applications

The TN400 is ideal for a variety of field and laboratory turbidity measurement needs including:

• Drinking water compliance testing

• Wastewater treatment

• Aquaculture

• Field environmental surveys

• Industrial process control