The fluoride online analyzer employs the ‌national standard method for water quality fluoride determination — fluorine reagent spectrophotometric method‌. This instrument is primarily used for monitoring surface water, groundwater, industrial wastewater, and is particularly critical in regions with high incidences of ‌dental caries‌ and ‌skeletal fluorosis‌ for monitoring drinking, surface, and groundwater sources.

The analyzer operates autonomously under ‌long-term unattended and continuous operation‌ based on field configurations. It is widely applicable to industrial wastewater discharge, industrial process wastewater, and similar scenarios. Depending on on-site complexity, optional preprocessing systems can be integrated to ensure ‌reliable testing processes‌, ‌accurate results‌, and compliance with diverse operational demands.

>>Principle

In an acetate buffer medium at pH 4.1, fluoride ions react with the fluorine reagent and lanthanum nitrate to form a blue ternary complex. The color intensity is proportional to the fluoride ion concentration. The analyzer quantifies fluoride (F⁻) by measuring absorbance at ‌620nm wavelength‌.

>>Technical Parameter

‌Test Method‌	Fluorine reagent spectrophotometric method
‌Measuring Range‌	0~50mg/L (segmented measurement, expandable)
Detection Limit	≤0.02mg/L
Resolution	0.001mg/L
Accuracy	±5%
‌Repeatability‌	≤±5%
‌Drift (24h)‌	Zero drift: ±5% Span drift: ±10%
‌Measurement Time‌	<40min (digestion time adjustable)
‌Measurement Modes‌	Adjustable time interval, fixed time point, or triggered measurement
‌Calibration Modes‌	Automatic calibration (1~99 days adjustable) Manual calibration based on actual water samples
‌Maintenance Cycle‌	1 month per session; ~30min per maintenance
‌Human-Machine Interface‌	Touchscreen display and command input
‌Self-Diagnosis & Protection‌	Self-diagnoses operational status; retains data during anomalies/power outages Automatically clears residual reactants and resumes operation after reset/power recovery
‌Data Storage‌	5-year data capacity
‌Input Interface‌	Digital input
‌Output Interfaces‌	1× RS232, 1× RS485 2× 4~20mA analog outputs
‌Operating Environment‌	Indoor use; recommended temperature: 5~28℃, humidity ≤90% (non-condensing)
‌Power Supply‌	Voltage: AC 220±10% V Frequency: 50±0.5 Hz Power: ≤150W (excluding sampling pump)
‌Dimensions‌	520H × 370W × 265D (mm)

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products details

Fluoride Online Water Quality Analyzer

Online Water Quality Monitor

Multi Parameter Water Quality Monitor

PH ORP Meter

Conductivity Meter

Dissolved Oxygen Meter

Ion-selective Meter

Residual Chlorine Meter

Turbidity Analyzer

TSS Analyzer

COD Analyzer

Optical Water Quality Sensor

Ultrasonic Meter

Water Quality Monitoring Accessories

Online Water Quality Monitor

Drinking Water Monitoring

Industrial Wastewater Monitoring

Aquaculture water Quality Monitoring

Boiler Water Monitoring

Multi Parameter Water Quality Monitor

PH ORP Meter

PH ORP Transmitter And Sensor

Portable PH ORP Meter

Desktop PH ORP Meter

Conductivity Meter

Conductivity Transmitter And Sensor

Portable Conductivity Meter

Desktop Conductivity Meter

Dissolved Oxygen Meter

Dissolved Oxygen Transmitter And Sensor

Portable Dissolved Oxygen Meter

Desktop Dissolved Oxygen Meter