The **F2VS-H0-R** is a specific sensor model, typically associated with high-precision optical sensing or liquid level detection systems (often found in specialized industrial equipment like Fuji or similar manufacturing lines). Below is a breakdown of the electronic components and technical specifications associated with this type of device. --- ### 1. Technical Specifications Overview The F2VS series usually functions as a **Pipe-Mounted Liquid Level Sensor**. It detects the presence or absence of liquid through a transparent pipe using optical refraction. | Feature | Description | | :--- | :--- | | **Detection Method** | Optical Refraction (Infrared LED + Phototransistor) | | **Output Type** | NPN or PNP Open Collector (Model dependent, R usually denotes specific logic) | | **Operating Voltage** | 12 to 24V DC | | **Response Time** | < 2ms | | **Indicator** | Integrated LED (Red/Green) for Status and Power | | **Mounting** | Snap-on or Tie-wrap for specific pipe diameters (e.g., 6mm to 13mm) | --- ### 2. Core Electronic Components The internal circuitry consists of four primary sections: #### A. The Emitter (Infrared LED) * **Function:** Generates a constant beam of infrared light. * **Electronics:** Driven by a current-limiting circuit to ensure a stable light intensity regardless of voltage fluctuations in the 12-24V range. #### B. The Receiver (Photodetector) * **Function:** Captures the light passing through the pipe. * **The "Refraction" Principle:** When the pipe is empty, light hits the receiver directly. When liquid is present, the light is refracted (bent) away from the receiver, triggering a state change. #### C. Signal Processing IC * **Comparator:** Compares the voltage from the receiver against a threshold. * **Hysteresis Circuit:** Prevents "chattering" (rapid switching) if bubbles are present or if the liquid level is turbulent. #### D. Output Stage (The "R" Suffix) * **Transistor Switch:** Usually an Open Collector output. * **Protection:** Includes reverse polarity protection and surge suppression to prevent damage from inductive loads or incorrect wiring. --- ### 3. Wiring Diagram Concept Standard industrial color-coding for the F2VS series: ```yaml Brown: +V (12-24V DC) Blue: 0V (GND) Black: Control Output (Load) ``` --- ### 4. Application Context These parts are engineered for **non-contact detection**, meaning the electronics never touch the liquid. This is critical for: * **Semiconductor Manufacturing:** Handling high-purity chemicals. * **Medical Lab Equipment:** Preventing contamination. * **Automated Bottling:** Ensuring precise fill levels in small tubes.