Level sensing module

The liquid level sensing module LLM (Liquid-level Meter) measures the change of dielectric constant through the capacitance high frequency circuit. The module digital signal output liquid capacitor value, converted into liquid level height, which can measure continuous liquid level or segment level, and the module can also provide liquid temperature information for compensation. The product can be widely used in various liquid level and water immersion detection scenarios.

Function：

Non-contact measurement: can penetrate a 1-15mm non-metallic container

Capacitance measurement range: 0.5 pF-100 pF

Capacitance measurement accuracy: 0.5-10 pF, the accuracy is 0.05 pF

-10 – 30 pF, with a precision of 1%

-30 – 100 pF, with a precision of 2%

Capacitor measurement resolution: 0.001 pF

Sampling interval: 2-10ms adjustable

Typical temperature measurement range: -40℃ ~125℃

Temperature resolution: 16bit ADC 0.004℃

Typical temperature measurement accuracy: ± 0.5℃, customized ± 0.1℃

Long-term working temperature: -40℃ ~85℃

Application：

Level 

Water flooding detection