The **M2VF-4WA-R2/Q** is a high-precision signal conditioner (transducer) manufactured by **M-System**. This specific model is designed to convert an AC voltage input into two isolated standard DC output signals. Below is a breakdown of its electronic specifications and characteristics. --- ### 1. Model Code Breakdown The alphanumeric code identifies the specific hardware configuration: | Code Segment | Description | | :--- | :--- | | **M2VF** | Model Series: AC Voltage Transmitter | | **4W** | Input Type: AC Voltage (ranges from 0-50mV up to 0-300V) | | **A** | Output 1: 4 to 20 mA DC | | **R2** | Power Input: 24V DC | | **Q** | Special Option: Usually denotes specific coating or custom calibration | --- ### 2. Key Technical Specifications The device acts as a galvanic isolator and signal converter. Here are the core electronic parameters: #### Input/Output Characteristics * **Input Impedance:** Typically $\ge 1 M\Omega$ (at 100V AC). * **Response Time:** $\le 0.5$ seconds (0 to 90%). * **Accuracy:** $\pm 0.3\%$ of span. * **Output 2:** If not specified otherwise in the sub-code, it often provides a secondary voltage or current signal. #### Power & Isolation * **Power Consumption:** Approx. 3W. * **Isolation Structure:** 3-way isolation (Input to Output 1 to Output 2 to Power). * **Dielectric Strength:** 2000V AC @ 1 minute (Input to Output to Power). --- ### 3. Electronic Design Features The M2VF series utilizes specific circuit topologies to ensure industrial-grade reliability: 1. **RMS Sensing:** The internal electronics use a Mean Value Rectifying circuit (calibrated to the RMS of a sine wave) to process the AC input. 2. **Zero/Span Adjustment:** Located on the front panel, these potentiometers allow for fine-tuning the electronic calibration ($\pm 5\%$). 3. **Base Socket Mounting:** The unit uses a plug-in style base (usually 11-pin), allowing the electronic module to be replaced without disconnecting the field wiring. 4. **Status LED:** A power indicator LED is integrated to verify the internal DC-DC converter is functioning. --- ### 4. Typical Application Circuit When wiring the M2VF-4WA-R2/Q, the electronic integration follows this logic: ```mermaid graph LR A[AC Voltage Source] -->|Input| B(M2VF Transmitter) B -->|Isolated DC| C[PLC / Controller] D[24V DC Power] -->|Supply| B ``` ---