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Float Switch L-12 (White)

Float Switch L-12 (White) Float Switch L-12 (White)
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Component Name

Float Switch L-12 (White)

Overview

The Float Switch L-12 (White) is a type of liquid level sensor designed to detect the presence or absence of a liquid in a tank or container. It is a versatile and reliable component used in various industrial, commercial, and residential applications, including water treatment, chemical processing, and HVAC systems.

Functionality

The Float Switch L-12 (White) operates on the principle of buoyancy, where a magnetic float rises or falls with the liquid level in the tank. The float is connected to a switch mechanism that triggers an electrical signal when the float reaches a specific level. This signal can be used to control pumps, valves, or alarms, allowing for efficient management of liquid levels and preventing overflow or dry-running conditions.

Key Features

  • High-Sensitivity Float: The Float Switch L-12 (White) features a highly sensitive float that accurately detects even slight changes in liquid levels, ensuring reliable operation and minimizing false triggers.
  • Adjustable Switch Point: The switch point can be adjusted to accommodate different liquid levels, making the Float Switch L-12 (White) adaptable to various applications and tank configurations.
  • Normally Open (NO) or Normally Closed (NC) Configurations: The float switch is available in both NO and NC configurations, allowing for flexibility in circuit design and application.
  • IP67 Rated: The Float Switch L-12 (White) has a rugged, waterproof design with an IP67 rating, ensuring reliable operation in harsh environments and resistance to corrosion.
  • Compact Design: The component's compact size and lightweight construction make it easy to install and integrate into existing systems.
  • Long-Life Cycle: The Float Switch L-12 (White) is built with high-quality materials and features a robust design, ensuring a long lifespan and minimizing maintenance requirements.
  • Easy Installation: The component comes with a straightforward installation process, reducing setup time and complexity.
  • Wide Operating Temperature Range: The Float Switch L-12 (White) operates effectively in temperatures ranging from -20C to 80C (-4F to 176F), making it suitable for a broad range of applications.

Technical Specifications

| Parameter | Value |

| --- | --- |

| Operating Temperature Range | -20C to 80C (-4F to 176F) |

| Switch Type | Normally Open (NO) or Normally Closed (NC) |

| Switch Point | Adjustable |

| Float Material | High-Density Polypropylene |

| Switch Rating | 10A @ 250V AC |

| Connection Type | Wire leads or terminal block |

| IP Rating | IP67 |

| Dimensions | 12mm x 35mm (0.47in x 1.38in) |

| Weight | Approximately 20g (0.71oz) |

Applications

The Float Switch L-12 (White) is suitable for a wide range of applications, including

Water treatment and purification systems

Chemical processing and storage

HVAC and climate control systems

Industrial automation and monitoring

Residential and commercial water supply systems

Alarm systems and overflow prevention

By providing accurate and reliable liquid level detection, the Float Switch L-12 (White) helps ensure efficient system operation, prevents costly damage, and minimizes downtime.

Pin Configuration

  • Float Switch L-12 (White) Pinout Documentation
  • The Float Switch L-12 (White) is a widely used IoT component for liquid level detection applications. It has three pins, which are explained in detail below:
  • Pin 1: Switch Output ( Normally Open - NO)
  • Function: This pin provides the switch output signal, which is normally open (NO) when the float is in its normal position (i.e., not triggered).
  • Description: When the liquid level reaches the trigger point, the internal switch closes, and this pin becomes connected to Pin 2 (Common). The output signal is typically used to control a relay, transistor, or other electronic devices.
  • Voltage: Typically, this pin can handle up to 24V DC or 12V AC.
  • Pin 2: Common (COM)
  • Function: This pin serves as the common connection for the internal switch.
  • Description: When the float switch is triggered, Pin 1 (Switch Output) becomes connected to Pin 2 (Common), allowing the signal to flow through.
  • Pin 3: None (Not Connected)
  • Function: This pin is not connected internally and should not be used.
  • Connection Structure:
  • To connect the Float Switch L-12 (White), follow this recommended structure:
  • 1. Connect Pin 2 (Common) to a suitable power supply (e.g., 12V DC or 24V DC) or a common reference point in your circuit.
  • 2. Connect Pin 1 (Switch Output) to the input of a relay, transistor, or other electronic device that will be controlled by the float switch.
  • Example Connection Diagram:
  • ```
  • +---------------+
  • | Float Switch |
  • | L-12 (White) |
  • +---------------+
  • | |
  • | Pin 2 (COM) |
  • | +-----------+
  • | |
  • | +-----------+
  • | |
  • +-----------+ | Pin 1 (NO) |
  • | Power Supply | | |
  • | (12V DC/24V DC) | | |
  • +-----------+ | |
  • | |
  • | +-----------+
  • | |
  • +-----------+ | Relay/Transistor |
  • | Controlled Device | | |
  • +-----------+ | |
  • | |
  • | +-----------+
  • | |
  • +-----------+ | Rest of the Circuit |
  • | (e.g., Microcontroller) | | |
  • +-----------+ | |
  • ```
  • Important Notes:
  • Ensure the power supply voltage and current ratings are within the recommended specifications for the Float Switch L-12 (White) and the controlled device.
  • Use a suitable relay or transistor to handle the load current and voltage requirements of your application.
  • Always follow proper safety precautions when working with electrical components and circuits.
  • By following this documentation, you should be able to correctly connect and utilize the Float Switch L-12 (White) in your IoT projects. If you have any further questions or concerns, feel free to ask!

Code Examples

Float Switch L-12 (White) Documentation
Overview
The Float Switch L-12 (White) is a type of liquid level sensor designed to detect the presence or absence of a liquid in a tank or container. It consists of a float and a switch, where the float rises or falls with the liquid level, triggering the switch to open or close accordingly. This documentation provides a comprehensive overview of the Float Switch L-12 (White) component, including its features, specifications, and code examples for various usage contexts.
Features and Specifications
Input Voltage: 12V DC
 Output: Normally Open (NO) or Normally Closed (NC)
 Switch Type: SPST (Single Pole Single Throw)
 Float Material: Buoyant plastic
 Switch Actuation: Rising or falling liquid level
 Operating Temperature: -20C to 80C
 Dimensions: 12mm (L) x 12mm (W) x 40mm (H)
Code Examples
### Example 1: Liquid Level Monitoring using Arduino
In this example, we will use the Float Switch L-12 (White) to monitor the liquid level in a tank and display the status on an LCD screen using an Arduino board.
Hardware:
Float Switch L-12 (White)
 Arduino Uno board
 LCD screen (16x2)
 Breadboard and jumper wires
Software:
```c
#define FLOAT_PIN 2 // Connect the float switch to digital pin 2
#include <LiquidCrystal.h>
LiquidCrystal_I2C lcd(0x27, 16, 2); // Set up the LCD screen
void setup() {
  pinMode(FLOAT_PIN, INPUT);
  lcd.init();
  lcd.backlight();
}
void loop() {
  int floatState = digitalRead(FLOAT_PIN);
  
  if (floatState == HIGH) {
    lcd.setCursor(0, 0);
    lcd.print("Liquid Level: HIGH");
  } else {
    lcd.setCursor(0, 0);
    lcd.print("Liquid Level: LOW");
  }
  
  delay(500);
}
```
### Example 2: Automatic Water Pump Control using Raspberry Pi
In this example, we will use the Float Switch L-12 (White) to automatically control a water pump using a Raspberry Pi board.
Hardware:
Float Switch L-12 (White)
 Raspberry Pi board
 Water pump module
 Breadboard and jumper wires
Software:
```python
import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BCM)
FLOAT_PIN = 17
PUMP_PIN = 18
GPIO.setup(FLOAT_PIN, GPIO.IN)
GPIO.setup(PUMP_PIN, GPIO.OUT)
while True:
    float_state = GPIO.input(FLOAT_PIN)
    
    if float_state:
        print("Liquid Level: HIGH - Pump OFF")
        GPIO.output(PUMP_PIN, GPIO.LOW)
    else:
        print("Liquid Level: LOW - Pump ON")
        GPIO.output(PUMP_PIN, GPIO.HIGH)
    
    time.sleep(1)
```
These examples demonstrate how to use the Float Switch L-12 (White) to monitor liquid levels and control external devices. The float switch can be used in various applications, such as tank overflow detection, water level monitoring, and automatic pump control.