High and low level output interface. Non-contact level sensor for Non-metallic wall container without direct contact with the liquid will not be acids such as corrosion, free from scale or other debris.Intelligent level adjustment and liquid level memory function, liquid level status display, multi-point connection in series can be achieved; Can support high and low level output, NPN output, PNP output, output, RS485 data signal output with the manufacturer's instructions can be).Detection is accurate and stable, boiling water level can be detected. Pure electronic circuit structure, non-mechanical work, stable performance and long service life. High stability, high sensitivity, only interference ability, free from external electromagnetic interference, for frequency interference and common mode noise have special treatment to be compatible with all available on the market 5 ~ 24V power adapter.Strong compatibility, through a of non-metallic containers, such as plastic, glass, ceramic and other containers, sensing distance up to 12mm or more; Liquid, powder, particles can be detected. Open collector output, wide voltage range (5 ~ 24V), suitable for connecting a of circuits and product applications.Intelligent non-contact level sensor is the use of condenser detection water to detect whether there is liquid in the absence of liquid proximity sensor, the sensor for the presence of distributed capacitance, so there is a certain static inductor of capacitance , when the liquid level rises slowly approach the sensor, the liquid of parasitic capacitance will be coupled to the static, the final capacitance of the inductor becomes larger.The change of the capacitance signal is then input for the IC control for signal conversion, it will change the capacitance into a change in the amount of electrical signals, and then by a certain algorithm to detect and determine the extent of this change,when the amount of change exceeds a certain threshold when the liquid level to reach the detection point.Current consumption 5mAOutput voltage (high level) InVCCOutput voltage (low level) 0VOutput current 1 ~ 50mAResponse time of 500mSOperating temperature 0 ~ 100 Thickness detection (sensitivity) range of 0 ~ 20mmRS485 communicationHumidity 5% ~ 100%IP67 waterproofNOTE:NPN output: There is a low level output sense, without induction disconnection.PNP output: There is a high-level sense of output, without induction disconnection.High and low level output: There is a high level output sense, no low level output sense.Colour: black + whiteMaterial: plasticPackage Contents:1 * Level Sensor SwitchOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.
