The **M2VF2-B5W-R/CE** is a high-performance, signal conditioning transducer (specifically a signal isolator/transmitter) manufactured by **M-System**. It is designed to convert a variable frequency pulse input into a standard analog DC output. --- ### 1. Technical Specifications The following table outlines the primary electronic characteristics of this specific model: | Parameter | Specification | | :--- | :--- | | **Model Series** | M2VF2 (Ultra-slim Signal Conditioner) | | **Input Type** | Pulse (Dry contact, voltage pulse, or open collector) | | **Output Type** | 4 – 20 mA DC (Current output) | | **Power Input (R)** | 24V DC | | **Frequency Range (B5)** | Custom Range (Typically 0 – 500 Hz to 0 – 10 kHz) | | **Accuracy** | ±0.1% of span | | **Isolation** | 3-way isolation (Input to output to power) | | **Mounting** | DIN Rail | --- ### 2. Breakdown of the Model Code The alphanumeric suffix defines the internal electronic configuration: * **M2VF2**: The base model series (Frequency Transmitter). * **B5**: Represents the specific input frequency range configuration (Voltage pulse or similar). * **W**: Indicates the specific output range (usually a standard 4-20mA or 1-5V variation). * **R**: Power supply requirement (**24V DC**). * **CE**: Compliance with European Safety and Electromagnetic Compatibility standards. --- ### 3. Electronic Functionality The device operates through three main electronic stages: 1. **Input Conditioning**: The pulse signal from a sensor (like a flow meter or tachometer) is filtered to remove noise. 2. **Conversion (F/V or F/I)**: The internal circuitry performs Frequency-to-Voltage or Frequency-to-Current conversion. It calculates the time between pulses and generates a proportional steady-state signal. 3. **Isolation & Output**: Using an optical isolator or transformer, the device separates the input, output, and power circuits. This prevents ground loops and protects sensitive PLC/DCS inputs from high-voltage surges on the field side. --- ### 4. Application Example This part is commonly used in industrial automation for: * Converting **flow meter** pulses into a 4-20mA signal for a PLC. * Monitoring **motor speed** (RPM) via a proximity sensor. * Integrating legacy pulse-output hardware into modern analog control loops.