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SX-CTNCA Series
SX-CTNCA Series

SX-CTNCA Series

The SensorsX SX-CTNCA Series is a self-cleaning turbidity sensor designed for continuous water quality monitoring. It uses the 90° scattering method compliant with ISO 7027, supports measurement ranges up to 4,000 NTU, and features RS-485/Modbus communication, IP68 protection, and an integrated cleaning brush for stable, low-maintenance operation in industrial and environmental applications.

  • Measurement Principle: 90° Scattering Method, ISO 7027
  • Measurement Range: 0.1–1,000 NTU / 0.1–4,000 NTU
  • Accuracy: ±5% or 0.3 NTU, whichever is greater
  • Output Signal: RS-485 / Modbus
  • Power Supply: 12–24 VDC, >500 mA
  • Ingress Protection: IP68
  • Maximum Pressure: 3 bar (43.5 psi)
  • Process Connection: 3/4" NPT Thread, Immersion Mounting
  • Housing Material: Titanium Alloy
  • Operating Temperature: 0°C to +50°C (32°F to 122°F)
Ordering Code
$1,265.00

Product Overview

The SX-CTNCA Series online turbidity sensor uses the 90° scattering method compliant with ISO 7027. A sapphire optical window with a customized optical filter provides stable measurement performance with resistance to ambient light and sample-color interference. The integrated self-cleaning brush reduces bubble formation and fouling effects, extending maintenance intervals during long-term online monitoring.

Main Features

  • Digital sensor with RS-485 output, standard Modbus protoco
  • 90° scattering method principle, compliant with the ISO 7027 international standard
  • Sapphire optical window with customized optical filter, resistant to interference from ambient light and sample color
  • Equipped with self-cleaning brush to prevent microbial fouling,extending maintenance interval 
  • Built-in calibration parameters, factory-calibrated for immediate installation and use 

Product Application

Industries Served


 
General water-quality turbidity monitoring
Food & beverage and industrial process
water
 Environmental water monitoring

Technical Data

Measurement
Product Type Turbidity Sensor with Self-Cleaning Brush
Measurement Principle 90° Scattering Method, ISO 7027
Measurement Range 0.1–1,000 NTU or 0.1–4,000 NTU
Accuracy & Calibration
Accuracy ±5% or 0.3 NTU, whichever is greater
Calibration 0-point, 1-point, or 2-point calibration
Power & Communication
Supply Voltage DC 12–24 V, >500 mA
Power Consumption 0.2 W idle / 0.6 W while brushing
Digital Communication RS-485 / Modbus
Environmental Conditions
Operating Temperature 0–50 °C (32–122 °F)
Maximum Pressure 3 bar (43.5 psi)
Ingress Protection IP68
Mechanical & Materials
Mounting 3/4" NPT thread, immersion mounting
Housing Material Titanium Alloy
Dimensions Φ36 mm × 198.2 mm
Cable Length 10 m standard, customizable

Certifications & Compliance

 

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