## Electronic Specifications: LCS-15B-R/E The **LCS-15B-R/E** is a specific model of a **Liquid Column Sensor** (often associated with brands like Takex or Seeika). These sensors are primarily used for non-contact detection of liquid presence or levels within pipes, typically utilizing infrared or capacitive technology. --- ### Core Technical Specifications The following table outlines the electronic characteristics typically found in this series: | Feature | Specification Details | | :--- | :--- | | **Supply Voltage** | 12 to 24V DC (±10% ripple) | | **Current Consumption** | Approx. 30mA or less | | **Output Type** | NPN Open Collector (usually) | | **Control Output** | Max 100mA (30V DC) | | **Response Time** | 2ms or less | | **Indicator Lamp** | Operation Indicator (usually Red LED) | | **Connection Method** | Pre-wired Cable (approx. 2m) | --- ### Internal Electronic Components & Operation The device operates using a combination of opto-electronic principles. Below is a breakdown of the internal logic: 1. **Infrared Emitter/Receiver:** The "B" in the model often signifies a Beam-type or specific sensing frequency. It uses an IR LED to pulse light through the tube. 2. **Refraction Logic:** The "R/E" designation often refers to the **Refraction** principle. * When the pipe is empty, light passes through or reflects in a specific way. * When liquid is present, the refractive index changes, diverting the light to the receiver, triggering the output. 3. **Output Circuitry:** It uses an NPN transistor configuration. This acts as a switch to ground when the sensor is activated. --- ### Wiring Configuration The electronic interface usually follows a standard industrial color code: ```yaml Brown: +V (12-24V DC) Blue: 0V (GND) Black: Control Output (NPN) ``` ### Key Application Considerations * **Pipe Compatibility:** Designed for transparent or semi-transparent pipes (PFA, PE, or Glass). * **Bubble Interference:** The electronic logic includes a small buffer to prevent false triggering from tiny air bubbles. * **Environmental Protection:** Usually rated IP66/67 to protect electronic parts from moisture and chemical splashes. ---