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AlpHa Measurement Solutions |
Turbidity in Laboratory

Turbidity in Laboratory

In laboratory settings, turbidity measurement supports a wide range of research, quality control, and validation activities across environmental, industrial, and academic disciplines. Reliable and precise turbidity data helps researchers and technicians perform repeatable experiments, validate filtration methods, and assess sample clarity in real time.

AlpHa’s TU90 turbidity sensor features a rugged optical system designed with the following features:

  • Precision 90° laser-based scattering method compliant with ISO 7027
  • Wide NTU range options (0 – 100, 0 – 1500, and 0 – 5000 NTU)
  • Industry-leading low-range accuracy with ± 1% error in the 0 – 100 NTU range
  • Built-in temperature compensation
  • Custom OEM sonde and stand-alone configurations including optional programmable wiper

  • Range: 0 – 100 NTU
    • Linearity: ~0.999
    • Resolution: 0.001 ~ 0.1 NTU
    • Accuracy: ≤ 1% 
  • Range: 0 – 1500
    • Linearity: ~0.999
    • Resolution: 0.01 ~ 0.1 NTU
    • Accuracy: < 2%
  • Range: 0 – 5000
    • Linearity: > 0.99
    • Resolution: 0.04 ~ 4 NTU
    • Accuracy: < 4%
  • Light Source / Method: 850 nm Laser / 90° Scattering
  • Turbidity Response Time: T90 < 10 seconds
  • Temperature Range: -5 to 60°C
  • Max Pressure: 15 bars
  • Depth Rating: 150 m
  • Flow Rate Specification: 0.1 ~ 10 L / min
  • Consumption
    • Signal Only: 0.6 W
    • Wiper Running: 1.9 ~ 3.8 W
  • Dimensions: 40 mm x 210 mm
  • Input Power: 12 – 36 VDC
  • Warranty: 12 Months
  • Form Factor
    • Process Body
    • Cartridge
    • Custom Options Available
  • Housing Material Options
    • PVC / CPVC
    • Metal
      • Titanium
      • Other Metals Available
  • Thermistor Options
    • Integrated Temperature Compensation
  • Wiper
    • Integrated
    • No Wiper Integrated
  • Integrated Insertions
    • Plumbing Tee Available
    • Flow Cell Available
    • Sonde Integration
  • Analog
    • 4 – 20 mA
    • Custom Options Available
  • Digital
    • RS-485 MODBUS RTU
    • Custom Options Available
  • Connectors
    • Integrated Connectors (detachable or cableless)
      • Mil-Spec
      • Custom Options Available
    • Connectors with Cables (including temperature)
      • Tinned Leads
      • DIN
      • Spade Lugs
      • Circular Connectors
      • Any commercially available connectors and custom options available