The **F2VS-G2-R** is a specific electronic component, primarily known as a **Flow Sensor** or **Liquid Flow Meter**, often utilized in industrial cooling systems and water management applications. It is designed to monitor the flow rate of liquids and provide electronic feedback to a controller. --- ### 1. Key Technical Specifications The following table outlines the typical electrical and mechanical parameters for the F2VS-G2-R series: | Feature | Specification | | :--- | :--- | | **Connection Type** | G 1/4 (standard threading) | | **Operating Voltage** | 4.5 to 24 VDC | | **Current Consumption** | Max 15 mA (at 5V) | | **Output Type** | NPN Open Collector (Pulse) | | **Operating Pressure** | Up to 1.0 MPa (approx. 10 bar) | | **Operating Temp** | 0°C to 60°C | | **Flow Rate Range** | 0.5 to 10 L/min (varies by specific model) | --- ### 2. Internal Electronic Components The F2VS-G2-R operates on the principle of a **Hall Effect Sensor**. Below are the core electronic elements inside the unit: * **Rotor (Impeller):** A mechanical part containing permanent magnets. As liquid flows through, it spins the rotor. * **Hall Effect IC:** This is the primary electronic sensor. It detects the magnetic field changes as the rotor magnets pass by. * **Signal Processing Circuitry:** Converts the magnetic fluctuations into a clean, digital square-wave pulse. * **Output Transistor:** Usually an NPN transistor that acts as a switch, allowing the sensor to interface with PLCs, microcontrollers (like Arduino/ESP32), or dedicated flow counters. --- ### 3. Wiring Configuration The sensor typically features a 3-wire interface. Standard color coding is generally as follows: | Wire Color | Function | Description | | :--- | :--- | :--- | | **Red** | VCC | Positive Power Supply (4.5V - 24V) | | **Black** | GND | Ground / Negative | | **Yellow / White** | Signal | Pulse Output (Square Wave) | --- ### 4. Integration Example To read the flow data using a microcontroller, you would typically use an interrupt-driven approach to count pulses. ```cpp // Example Arduino Code snippet for Pulse Counting volatile int pulseCount = 0; void pulseISR() { pulseCount++; } void setup() { pinMode(2, INPUT_PULLUP); // Connect Yellow wire to Pin 2 attachInterrupt(digitalPinToInterrupt(2), pulseISR, RISING); } ``` ---