Features
● Designed entirely of 316L stainless steel, with an IP68 protection rating.
● The probe has functions such as preventing sedimentation, preventing injury from sharp objects, and preventing the growth of marine organisms.
● RS485 digital output.
● Precision correction and compensation across the entire temperature range, with a maximum design accuracy of 0.1%FS.
● Meets EMC environmental requirements.
Application areas
● Shipping, water conservancy and hydrology, water tank level measurement.
● Marine monitoring, river and groundwater level monitoring.
● Urban water supply and urban road sewage monitoring.
● Liquid depth monitoring in industries such as petrochemicals and power.
Product Overview
The AI-LF intelligent submersible level transmitter is a new generation of intelligent product that uses a high-performance diffused silicon pressure sensor as its measuring element. It features precise correction and compensation for the sensor's inherent pressure and temperature characteristics, and transmits level signals via an RS485 Modbus RTU digital interface.
This level transmitter is designed and developed in accordance with national standards and specifications such as marine products, explosion-proof standards, GJB150, GB/T2423, and JJG860. It is also manufactured and inspected according to the ISO9001:2015 quality management system requirements and company standards. This product has undergone long-term verification, demonstrating stable and reliable data operation. It is suitable for harsh environments with strong interference and possesses the ability to resist strong electromagnetic signal interference.
External structure: (unit: mm)

Technical parameters:
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Pressure parameters
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Range
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0 mH2O~1 mH2O…200 mH2O
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Overload
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2 times full-scale pressure, 5 times overpressure for 5 mH2O and below.
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Electrical parameters
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Power supply
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10V~28V DC
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Output signal
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RS485 Modbus protocol output
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Load capacity
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Up to 99 transmitters can be connected via the RS485 bus.
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Insulation resistance
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100MΩ , 50V DC
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Structural parameters
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Enclosure
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Stainless steel
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Sensor
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316L stainless steel
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Sealing ring
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Fluororubber
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Cable
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∅ 7.5mm polyethylene special cable
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Protection level
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IP68
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Environmental conditions
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Media suitability
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Various fluids that do not corrode 316L stainless steel and fluororubber
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Compensation temperature
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-10℃~80℃
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Operating temperature
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-20℃~85℃
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Storage temperature
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-40℃~125℃
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Performance indicators
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Accuracy
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±0.1%FS (Minimum)
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±0.5%FS (Maximum)
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Zero-point temperature coefficient
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±0.05%FS/℃ (≤5 mH2O)
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±0.02%FS/℃ (>5 mH2O)
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Full-scale temperature coefficient
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±0.05%FS/℃ (≤5 mH2O)
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±0.05%FS/℃ (>5 mH2O)
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Long-term stability
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±0.3%FS/year (Maximum)
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