The fluoride ion online detector is designed to mimic the Mettler circuit, manufactured with fully imported chips, displayed on an LCD large screen, operated through English or Chinese menus, with human-machine dialogue and microcomputer operation. It displays fluoride ion concentration values, input mV (or output current), temperature, and time on the same screen, using devices with dual high impedance input impedance up to 10P12P Ω, strong resistance to rod interference, and current output using photoelectric coupling isolation technology. It has strong resistance to rod interference and can be transmitted remotely.

Typical Applications
ST-L901 typeFluorine ion online detectorWidely used for online monitoring of fluoride ion concentration in thermal power, chemical, metallurgical, and water treatment industries.
Fluorine ion online detectorfeature
★ Designed in imitation of Mettler circuit, fully imported chip manufacturing
★ LCD large screen display, full English or Chinese menu operation, human-machine dialogue, microcomputer operation
★ Display fluoride ion concentration value, input mV (or output current), temperature, and time on the same screen
★ Equipped with components, the dual high impedance input impedance can reach up to 10P12P Ω, and it has strong resistance to rod interference
★ The current output adopts photoelectric coupling isolation technology, which has strong resistance to pole interference and can be transmitted remotely
The communication interface can be easily connected to the computer for monitoring and communication
Quick response, accurate measurement, and stability
★ Waterproof and dustproof design: protection level IP65, suitable for outdoor use
★ Automatically achieve wide range measurement from ppb level to ppm level
Technical instructions
Chinese menu, Chinese LCD display.
Measurement range: fluoride ion concentration value: 0-2300mg/L, division value: 0.1ug/L, 0.01mg/L
Temperature: 0-99.9 ℃ with a division value of 0.1 ℃
Potential value: -1999~+1999mV with a division value of 0.1mV
Accuracy: fluoride ion concentration value: ± 2.5% of reading Temperature: ± 0.5 ℃ (0-60.0 ℃)
Automatic temperature compensation range: 0-99.9 ℃, with 25 ℃ as the reference
Accuracy: ± 2.5% of reading, ± 0.3 ℃
Tested water sample: 0-99.9 ℃, 0.6Mpa
Automatic temperature compensation error of electronic unit: ± 1.5%
Electronic unit repeatability error: ± 2.5% of reading
Stability: ± 1.5%/24h
Current isolation output: 4-20 mA (load<750>output current error: ≤± 1% FS)
High and low alarm relay: AC220V, 7A
Communication interface: RS485 (optional)
Power supply: AC220V ± 22V, 50Hz ± 1Hz, optional 24V power supply
Protection level: IP65
Dimensions: 143 (length) x 143 (width) x 150 (depth) mm. Hole size: 138 x 138 mm
Weight: 1.0kg
Working conditions: ambient temperature 0-60 ℃, relative humidity<85%<>