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SX-CNLCA Series
SX-CNLCA Series

SX-CNLCA Series

The SensorsX SX-CNLCA Series is a self-cleaning ammonia nitrogen sensor designed for real-time water and wastewater monitoring. It uses an ion-selective electrode method with automatic pH and temperature compensation, requires no chemical reagents, and features an integrated cleaning brush for reduced maintenance. With RS-485 Modbus communication, IP68 protection, and an NH4-N measurement range of 0–100 mg/L, it is well suited for continuous industrial water-quality monitoring.

  • Measurement Principle: Ion-selective electrode method
  • NH4-N Range: 0–100 mg/L (0–1,000 mg/L optional)
  • pH Range: 4–10 pH
  • Accuracy: ±10% or ±0.5 mg/L, whichever is greater
  • Resolution: 0.01 mg/L
  • Output Signal: RS-485 / Modbus
  • Power Supply: DC 9–24 V, ≥1 A
  • Ingress Protection: IP68
  • Operating Temperature: 0°C to +50°C
  • Calibration: 1-point or 2-point calibration
Ordering Code
$1,349.00

Product Overview

The SX-CNLCA Series online ammonia-nitrogen sensor requires no reagents and generates no chemical waste, enabling real-time online monitoring. It is equipped as standard with an ammonium-ion electrode, a pH electrode, and a reference electrode, with an optional potassium-ion electrode. During ammonianitrogen measurement, automatic pH and temperature compensation helps improve measurement accuracy. The sensor can be installed directly by immersion and provides a cost-effective, convenient
alternative to traditional ammonia-nitrogen analyzers. An integrated self-cleaning brush helps prevent microbial fouling, extends maintenance intervals, and improves operational reliability.


Main Features

  • Digital sensor with RS-485 output, Modbus protocol
  • No reagents required; no chemical waste; cost-effective operation
  • Automatic compensation for potassium ions, pH, and temperature; potassium-ion compensation is optional
  • Equipped with a self-cleaning brush to prevent microbial fouling, extending maintenance intervals
  • Built-in calibration parameters for convenient field use and recalibration

Product Application

Industries Served

Real-time online ammonia-nitrogen  monitoring in water and wastewater treatment
 

Technical Data

Measurement
Product Type Ammonia-Nitrogen Sensor (with brush)
Measurement Principle Ion-selective electrode method
NH4-N Range 0–100 mg/L (0–1,000 mg/L optional)
pH Range 4–10 pH
Accuracy & Calibration
NH4-N Accuracy ±10% or ±0.5 mg/L (whichever is greater)
Resolution 0.01 mg/L
Calibration 1-point or 2-point calibration
Power & Communication
Supply Voltage DC 9–24 V, ≥1 A
Power Consumption 0.1 W (idle) / 1 W (while brushing)
Digital Communication RS-485 / Modbus
Environmental Conditions
Operating Temperature 0–50 °C 
Ingress Protection IP68
Mechanical & Materials
Housing Material POM
Dimensions Φ64 mm × 271 mm, with protective cover
Cable Length 10 m standard, customizable

Certifications & Compliance

 

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