Single end liquid level module - LSP

Product Specification

Single-end liquid level module LSP (Liquid-level-Single-ended-Pro) using the principle of single-end ground capacitor measurement, through the change of the capacitor sensor chip, module digital signal output capacitance value, converted into liquid level height, etc., measurable, continuous liquid level or segmented liquid level, water content, proximity and other medium sensing, widely used in water level, fluid level, material level, moisture content detection and approach sensing. The module includes microprocessing devices, embedded capacitance and physical quantity conversion calculation, alarm detection algorithm, temperature compensation, information storage, calibration support, etc., and digital protocols such as I2C and 1-wire can be customized.

LSP can penetrate 1-10mm non-metal container, effectively overcome the problems of thick container wall, measuring air spacing and high viscosity of liquid medium, and accurately measure the capacitor change; small size, design circuit, stamps, boards to integrate customers into the product circuit; different capacitors range can be measured by adjusting the peripheral circuit; the module contains high-precision external crystal vibration with higher precision data acquisition and more stability, and realize the effect of reducing interference and increasing accuracy with the algorithm software.

The LSP provides dual channels for simultaneous detection of two ground electrodes.

Function：

Measurement method: non-contact can penetrate 1~10mm non-metal container, or contact type

Liquid level accuracy: according to the measured object and electrode structure, the highest accuracy is 1%

Capacitance measurement range: 0 ~ 150 pF

Capacitance measurement accuracy: 1%

Capacitance measurement resolution: 0.5ff

Capacitance measurement time: 1-100ms (customized to acquisition requirements)

Average power consumption: 5.6 mA @ 5 V

Temperature resolution: 15bit ADC

Typical temperature measurement accuracy: ± 3℃

Range of operating temperature: -40℃ ~ + 85℃

Application：

Stage

Oil liquid level

Material position

Water content and other tests

Close to the sensing