Feature:
1. Contactless Detection: This liquid level sensor adopts advanced signal processing technology and high speed signal processing chip, which breaks through the influence of container wall thickness, can achieve liquid level detection in closed containers without touch.
2. IP65 Rating: The liquid level sensor adopts black sealant to tightly seal the back, featuring IP65 rating, preventing debris from entering the interior and causing damage.
3. Premium Materials: The casing is made of ABS plastic, which is insulated, flame retardant, and lasting. The standard wire is thick and sturdy, water proof, oil proof, and anti aging, with well conductivity.
4. Versatile Use: This contactless water level sensor can directly drive loads such as relays, signal lights, reminders, and PLCs, with adjustable sensing sensitivity.
5. High Performance: This sensor has high stability, high sensitivity, strong anti interference ability, and is not affected by external electromagnetic interference, which has been specially treated for power frequency interference and common mode interference.
6. Strong Compatibility: This water level sensor is able to penetrate various non metallic containers such as plastic, glass, ceramics, etc., with a sensing distance of over 12mm, can detect liquids, powders, and particles.
Specification:
Item Type: Contactless Water Level Sensor
Material: ABS
Operating Temperature: 5 to 105 celsius
Water Proof Rating: IP65
Operating Humidity: 5percent to 100percent
Response Time: 500Ms
Sensing Method: Capacitive
Power Protection: Polarity protection
Wiring Terminal Definition: Brown (power supply positive), blue (power supply negative), black (signal line), white (mode line). White line floating for NPN normally open; White line short connected to blue line for NPN normally closed
Sensor Sensitivity Adjustment:
1. Counterclockwise increases sensitivity; Clockwise decreases sensitivity.
2. The sensor can sense human hands, so it is recommended to install the sensor in a fixed position for adjustment to avoid human hands being within the sensing range.
Measurement Output Voltage:
1. The sensor outputs NPN normally open output, when no load is connected and only a multimeter is used for measurement, the high level value is virtual and has no practical significance.
2. The sensor should be connected to a load of less than 0.2A (indicator light, small relay, pull up resistor, optocoupler, etc.) to measure the output end with a multimeter, data is only valid at this time.
High Level Issues When Connecting to Microcontroller or PLC:
For example, a sensor that supplies 12V power needs to be connected to a 5V microcontroller, the positive pole of 12V should be connected to brown line, the negative pole of 12V should be connected to blue line, the black line should be connected to 10K resistor, when the voltage is pulled up to 5V, the black line is at a high low voltage level of 5V.
Use of Sensor Mode Line White Line:
1. The white line is the mode line, controlling the sensor output high and low levels inversion, default is white wire floating.
2. Please note that misconnecting the white line with the brown or black line may cause damage to the sensor!
Example: Connect 12V positive to sensor brown, 12V negative to sensor blue, sensor black to relay coil, and 12V positive to the other end of relay coil.
White Line Floating: With water, sensor light on, internal NPN transistor conductive, black line low level, relay closed
White Line Floating: No water, sensor light off, internal NPN transistor non conductive, black line high level, relay disconnected
White Wire Connected to Blue Wire: With water, sensor light on, internal NPN transistor non conductive, black line high level, relay disconnected
White Wire Connected to Blue Wire: No water, sensor light off, internal NPN transistor conductive, black line low level, relay closed
.
Package List:
1 x Contactless Water Level Sensor
1 x Screwdriver
Note:
The tested liquid must be conductive, the touch surface pipeline is non metallic and can be widely used.
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