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Taidacent Non-Contact Liquid Level Sensor Contactless Water Leve

$6

Taidacent Non-Contact Liquid Level Sensor Contactless Water Leve

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Product Description

liquid level sensor moduleliquid level sensor module

PNP output drive small electric relay (coil current ≤100mA) working principle:

  1. When the black line is suspended, it is normally open output: When liquid is sensed, the transistor is turned on and closed, and the relay is energized and closed; When no liquid is sensed, the transistor will be cut off and the relay will not be closed when the power is turned off;
  2. When the black wire is grounded (connected to the negative pole of the power supply 0V), it is normally closed output: When liquid is sensed, the transistor will be cut off and the relay will not be closed when the power is turned off; When no liquid is sensed, the transistor is turned on and closed, and the relay is energized and closed;
Water Tank Level SensorWater Tank Level Sensor

The following is the installation method of Y25 series products, the installation method of other models is the same.

(1) Requirements and installation methods of the tested container The tested containers are divided into 3 categories according to their materials:The first category: insulating material container Containers made of non-metallic materials with flat surface, uniform thickness, compact materials, and good insulation properties; such as glass, plastic, non-absorbent ceramics, acrylic, rubber and other aterials or their composite materials.

Installation method:

1. If the container wall where the measuring probe is installed is of multi-layer material, the layers should be in close contact with each other without bubbles or gas interlayers. The inner and outer surfaces of the container wall should be flat.

2. Wall thickness: 0-20mm

3. Tank type: spherical tank, horizontal tank, vertical tank, etc.

4. The installation method of this kind of material container is shown in Figure 1;The probe can be pasted and fixed with glue or fixed on the outer wall of the container with a non-metal bracket.

Try to avoid metal and other parts where the probe is installed, so as not to affect the detection.

The location where the probe is installed should avoid the liquid inlet and the flow path of the liquid.

There should be no silt or other debris inside the container facing the low-level probe, so as not to affect the detection;

Metal conductive material container

Water Level Control Switch SensorWater Level Control Switch Sensor

The second category: metal conductive material container

Containers made of metal or other conductive materials; such as stainless steel, copper, aluminum alloy or materials

with electroplated metal layers on the surface. Because capacitive sensors are sensitive to all conductive objects, this type

of container cannot be directly attached to the outer wall of the container; therefore, for containers of this type of material,

holes need to be made on the side of the container. The installation method is as follows.

installation method

  1. Prepare two rubber plugs and the necessary tools for opening threaded holes;
  2. Two threaded holes are opened in the high position and the low position respectively, and the hole diameter matches the size of the rubber plug;
  3. Put a rubber plug on the threaded hole and tighten it to check for water leakage, and add glue to seal if necessary;
  4. Paste the sensor on the rubber plug with glue and fix it with the bracket. After the glue has solidified, remove the bracket. The installation of the metal container is shown in Figure 2.
Non contact water level sensorNon contact water level sensor

The third category: non-metallic materials that absorb water

Containers made of ceramics, tiles, bricks, tiles, cement, wood boards and other materials are insulators or weakly conductive. This kind of container may not be detected when it is close to the liquid level sensor when it is dry and without water, but when the container is filled with water, the container wall will absorb water, causing the container wall to become a conductor; even if the container is empty When the sensor is close to the container wall, the signal will also be detected.

If the sensor is to be used on a container of this type of material, the installation method should be in accordance with the installation method of a metal container. For the installation method, see "Class 2: Metal Conductive Material Container" and Figure 2; or use an external pipe to install. External pipes are divided into external non-metallic pipes and external metal pipes . 7 / 14 The installation method of external non-metallic pipes is shown in Figure 3-1 and Figure 3-2. The installation method of external metal pipes is shown in Figure 4-1 and Figure 4-2

Contactless water level sensorContactless water level sensor

Parameter

Supply voltage (Vin): (DC 5-12V) (DC 24V)

Output mode: Switch quantity (Low pulse effective)

Power ripple requirements: lt;=200 mV

Electric current: 5mA

Response time: 500mS

Working temperature: -20~ 80°C

Humidity: 5%~100%

Induction thickness (Sensitivity) range: lt;=20mm (Container wall thickness)

Liquid level accuracy: ±1.5mm

Line length:500MM (±10MM) (Bulk can be customized)

Terminal sequence:Brown (power supply positive),yellow (signal output) Blue (power negative), Black (COM terminal)

Material: PC V0 Fireproof material

Waterproof performance: IP67

Low and High Level Output Water Level sensorLow and High Level Output Water Level sensor

Figure 5 The sensor is installed on the iron pipe with the three-prong joint (the installation diagram of metal and water-absorbing container)

Figure 6 The sensor is directly attached to the non-metallic water pipe with a smaller diameter (diagram of installation of insulating container)

Application environment

1. Y25-V, Y25-NPN/PNP (5-12V)

It is only applicable under the conditions of good EMC environment. For example, the connection with MCU, and some simpler load applications, such as LED indicator lights, piezoelectric buzzer, etc. And there is no high-power capacitive and inductive load and harsh electromagnetic environment on the power bus.

2. Y25-NPN/PNP (24V), Y25-RS485 (24V)

This model is carefully designed for harsh industrial environments. Added professional EMC components, such as spike absorption, electromagnetic compatibility, and transient suppression and surge protection. It can be directly connected to PLC, electromagnetic relay, etc. It has a very strong anti-interference ability and is suitable for all harsh industrial application environments.

Taidacent Non-Contact Liquid Level Sensor Contactless Water Leve