ISE Fluoride Measurement (Free Fluoride Ion) without Reagent

SUNTEX IT-8310-RS Ion transmitter has rugged IP 65 enclosure and can be wall, panel, pipe mounted in almost any industrial application. When compatible with fluoride ion selective electrodes, the complete system is extremely powerful of detecting the F- ion in wastewater of semiconductor, solar panel, LCD industries. The transmitter inherits our reliable technology which features in accurate, robust, and easy to use functions.


  • ISE method of ion measurement provides excellent selectivity
  • Automatic function: auto cal, self-test, and error code indication
  • IP 65 waterproof and dustproof design
  • Back-lit LCD with ON/OFF/Auto programmable illumination
  • Isolated current output DC 0/4~20mA corresponding to measurement
  • Equipped with one analog output and RS-485 interface (Modbus protocol)
  • Two Hi/Lo Limited contact outputs; Set points with programmable hysteresis function
  • Automatic temperature compensation
  • Gradually continuous sample measurements average function to enhance stability
  • Wash function with programmable time-interval control
  • LED indication alarm or wash status signal
  • Password protection


  • Wastewater treatment of semiconductor, solar panel, and LCD industries
Technical Specifications
Measuring MethodISE for Fluoride Ion
Measuring Range0.2 ~ 20,000 mg/L (ppm) F-
ResolutionFluoride: 0.01 / 0.1 / 1 mg/L (ppm)
Temperature: 0.1 deg C
Temperature CompensationAutomatic with PT1000 or NTC 30K
Manual Adjustment / OFF Compensation
Calibration Mode2 ~ 5 Points Calibration
Power Supply100 ~ 240VAC, 50/60Hz, 0.5A Max
Outputs1 x 0/4 ~ 20mA for Fluoride Measurement
2 x Dry Contact Relays (Hi/Lo, Hi/Hi, Lo/Lo Alarm
1 x Dry Contact Relay (Wash)
RS485 (Modbus RTU or ASCII)
DisplaysLarge LCM with Auto Sense Backlight and Contrast Function
Text Mode: Numerical Display
Chart Mode: 3 Min Real Time Dynamic Graph
Trace Mode: Programmable 3 Mins to 4 Weeks Trend Graph
IP RatingIP65
Dimension144 x 144 x 115 mm (H x W x D)
Sample pH Range and Temperature pH 5 ~ 10 / 0~ 80 deg C
Sensor Process Connection3/4″ NPT
Sensor Length150mm
Sensor Cable Length5m
Sensor Response Time2 mins > 2ppm F-
1 min> 20ppm F-
Sensor Interference IonOH-, Al3+, Fe3+
A I ANALYTICAL PTE LTD | Address 30, Kallang Place, #06-01, Singapore 339159 | Tel: +65 6459 0785 | Email: