high temperature non-contact liquid tank level sensor water level controller meter alarm liquid nitrogen level sensor

high temperature non-contact liquid tank level sensor water level controller meter alarm liquid nitrogen level sensor 

product overview

Intelligent non-contact level sensor (hereinafter referred to as liquid level sensor) uses advanced signal processing technology and high-speed signal processing chip, breaking the container wall thickness of the impact of the container to achieve a high level of real Contact detection. The liquid level sensor (probe) is installed in the upper and lower sides of the outer wall of the tested container (the high and low level of the liquid level). The non-metallic container does not need to be opened and easy to install. Can be achieved in the high-pressure sealed containers within a variety of toxic substances, strong acid and alkali and a variety of liquid liquid level for testing. Liquid level sensor on the liquid medium and the material of the container no special requirements, can be widely used.
 
 Intelligent non-contact liquid level sensor is divided into four kinds of signal output interface, respectively, for the high and low output interface, NPN output interface, PNP output interface, RS485 interface; corresponding to the four models: (please customers to determine which you want thank you !)
 
  
High and low level output interface - Model: Y25-T12V
 
NPN output interface - Model: Y25-NO (NPN)
 
PNP output interface - Model: Y25-NO (PNP)
 
 
RS485 interface - Model: Y25-RS485

Note: Requires direct relays, buzzers, speakers, indicators, recommended MC-NPN output models with voltage protection
 
Output Interface Description:

Remark: NPN output: Inductive output low level Not sensed No output
                Pnp output: sensor output is not high output sensor is not output
                High and low level output: sensor output high level sensor output low level
                RS485 output: communication protocol

 Product features
1, non-contact liquid level sensor, suitable for non-metallic container wall without direct contact with the liquid, will not be strong acid and alkali and other corrosive liquid corrosion, from scale or other debris.
2, intelligent level adjustment and liquid level memory function, liquid level display mode, can achieve multi-point series wiring; can support high and low level output, NPN output, PNP output, RS485 data signal output (selection and manufacturers Description can be).
3, accurate and stable detection, can detect boiling water level.
4, pure electronic circuit structure, non-mechanical work, stable performance and durable life.
5, high stability, high sensitivity, just interference ability, from outside electromagnetic interference, for power frequency interference and common mode interference to do special treatment to compatible with all the market 5 ~ 24V power adapter.
6, strong compatibility, through a variety of non-metallic materials such as containers, such as plastic, glass, ceramics and other containers, the sensing distance of up to 12mm or more; liquid, powder, particulate matter can be detected.
7, open collector output mode, wide voltage range (5 ~ 24V), suitable for connecting a variety of circuit and product applications.
 
 Working principle
Intelligent non-contact liquid level sensor is the use of water capacitance to detect the presence of liquid, in the absence of liquid near the sensor, the sensor due to the presence of distributed capacitance, so the sensor to the ground there is a certain static capacitance, When the liquid level slowly rises near the sensor, the parasitic capacitance of the liquid will be coupled to the static capacitance, so that the final capacitance of the sensor becomes larger, the change of the capacitor signal and then input to the control IC for signal conversion, will change Of the capacitance into a certain amount of electrical signal changes, and then by a certain algorithm to detect and determine the degree of this change, when the amount of change exceeds a certain threshold when the liquid level is considered to reach the induction point.

Product parameter

Output current: 1 ~ 50mA
Response time :500mS
Working environment temperature :0 ~ 100 ℃
Sensing thickness (sensitivity) range :0 ~ 20mm
Communication: RS485
Humidity :5% ~ 100%
Material :ABS
Waterproof performance :IP67

Wiring instructions

Sensitivity adjustment
Open the sensor head cover, adjust the sensitivity knob with a small screwdriver, counterclockwise to mention the sensitivity, clockwise rotation to reduce the sensitivity.

 Size