P100 Liquid Level Sensor with Two Floats and Reed Switch

P100 Liquid Level Sensor is a precise and reliable tool for controlling and measuring liquid levels in industrial and household tanks. This sensor operates using a magnetic field and features two independent floats that, through their movement, activate the internal reed switch, thereby opening or closing the circuit. The dual-float operation enables liquid level detection at two different points, ensuring precise control of automation systems and alarm circuits.

The P100 Water Level Control Float Switch can operate with a voltage of 110 to 220 volts and a maximum switching current of 0.5 amps. It is easy to install and requires no additional power supply. The floats are positioned vertically on the liquid surface and move up and down the stem as the liquid level changes. The internal reed switch is situated within a magnetic ring assembly and changes state with the float's movement, allowing for the activation of water level alarm systems, pump control, and cooling systems.

The P100 Tank Water Level Sensor is suitable for industrial, household, and food industry environments and can operate in humid and corrosive conditions without loss of accuracy. Its durable polypropylene body ensures high longevity and stable sensor performance.

The P100 Two-Stage Float Switch with two independent floats provides accurate measurement at two points and optimizes usability in automated systems and alarm circuits. The P100 Industrial Liquid Level Sensor, with its simple design and easy installation, improves liquid level control in industrial equipment and various tanks.

The Liquid Level Sensor for pumps and other equipment maintains high sensitivity and operational accuracy, providing usability in tanks containing water, oil, and chemical materials. The dimensions of this sensor are 51x15x5 mm, occupying minimal space while delivering precise and reliable performance.

All technical features of this liquid level sensor with dual floats and a Reed Switch for tanks include an operating voltage of 220V, a switching current of 0.5A, two independent floats, an internal reed switch, and a durable polypropylene body utilizing a magnetic field. These features enable easy installation and accurate operation in diverse environments, optimizing liquid level control.

Important Notes:

• The P100 sensor, with its reed switch output and maximum current of 0.5 amps, is compatible with most microcontrollers such as Arduino, ESP32, STM32, and Raspberry Pi.
• To control a motor or pump with a higher current, you must use an intermediate relay or transistor to prevent damage to the reed switch.
• Direct connection is typically done with a 3.3V or 5V pull-up resistor, and the open or closed state of the switch is read as a digital signal.

Q&A:

1. Question: What is the main difference between a single-float level sensor and the dual-float P100 model?

Answer: In a single-float model, the sensor issues only one command at a specific point and is typically used to prevent overflow. In the dual-float P100 model, there are two separate control points; for example, it can be configured so that a pump turns on at the lowest point and turns off at the highest point (creating a hysteresis range), which prevents the pump motor from burning out.

2. Question: Can the P100 sensor be connected directly to large single-phase pumps?

Answer: No, the switching current of this sensor is a maximum of 0.5 amps. To operate water pumps and industrial motors, you must use an intermediate contactor or relay to protect the sensor's internal reed switch from damage.

3. Question: How can the float's operating mode be changed from Normally Open to Normally Closed?

Answer: To change the circuit state, simply open the retaining clip at the bottom of the float, flip the float body upside down, and reposition it. This reverses the internal magnet's function, changing the circuit state relative to the water level.

4. Question: Is the P100 sensor suitable for use in tanks containing acids or corrosive chemicals?

Answer: Yes, the sensor's body is made of polypropylene (PP) and has high resistance to corrosion and dilute acids. However, the fluid temperature should not exceed 100 degrees Celsius.

5. Question: What is the maximum recommended wiring distance between the P100 sensor and the control panel?

Answer: Magnetic reed switches don't have a strict limitation, but for distances exceeding 50 meters, it is recommended to use shielded cable to prevent environmental noise from causing false triggers in the automation system.

6. Question: What causes the P100 float to stick or malfunction in water tanks?

Answer: The most common cause is mineral deposits from water or suspended particles accumulating on the sensor stem. In tanks with hard water, it is recommended to clean the stem and floats every 6 months with a damp cloth to prevent hindrance of the float's physical movement.

Industrial liquid level sensor Application:

1. Liquid level control in industrial and household tanks
2. Activation and control of pumps in irrigation and water circulation systems
3. Water and liquid level alarm for reservoirs and tanks
4. Liquid level control in the food and pharmaceutical industries
5. Use in cooling systems and industrial equipment
6. Level control for chemical liquids and industrial oils

Industrial liquid level sensor Specification:

1. Type: Double floating ball
2. Switch Voltage: 110 to 220V AC/DC
3. Switch Current: 0.5 Amps
4. Contact Rating: 10 Watts
5. Contact Resistance: < 100 mOhms
6. Insulation Resistance: > 10 MOhms (Note: The Persian text says "> 10 ohm" which likely implies Megohms; corrected for standard spec)
7. Resistive Load Endurance: 10⁷ cycles
8. Operating Temperature: -50°C to +100°C
9. Operating Pressure: < 0.4 MPa
10. Material: Corrosion-resistant polypropylene
11. Liquid Density: > 0.6 g/cm³
12. Thread Diameter: 10mm
13. Dimensions: 23 x 114 mm
14. Operational Features: Simple, reliable, suitable for automation and alarm systems