The **M2VF2-5WA-R2/Q** is a high-precision, signal-isolated transmitter (transducer) manufactured by **M-System**. It is specifically designed to convert an AC voltage input into two independent, isolated DC output signals. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Input Signal** | AC Voltage (0 – 150V AC typically for -5W suffix) | | **Output 1** | 4 – 20 mA DC | | **Output 2** | 1 – 5 V DC | | **Power Input** | 24V DC (±10%) | | **Isolation** | 3-way isolation (Input to Output to Power) | | **Accuracy** | ±0.3% | | **Response Time** | ≤ 0.5 seconds (0 – 90%) | --- ### 2. Functional Breakdown #### A. Input Section (AC Voltage) The unit monitors an alternating current voltage. It uses an internal transformer or sensing circuit to step down and rectify the AC signal into a measurable DC level proportional to the Root Mean Square (RMS) or average value of the input. #### B. Isolation Barrier One of the most critical "parts" of this device is the **galvanic isolation**. It uses opto-isolators or magnetic transformers to ensure that high-voltage surges on the input side do not damage the PLC/DCS on the output side. - **Isolation Resistance:** 100 MΩ or more with 500V DC. - **Dielectric Strength:** 2000V AC @ 1 minute. #### C. Dual Output Stage The "2" in the model name indicates **Dual Output**. - It generates two separate signals simultaneously. - This allows you to send one signal to a local display/meter and the second signal to a remote control system (SCADA/PLC) without needing a separate splitter. --- ### 3. Model Code Deciphering To understand the specific electronics, here is the breakdown of the part number: | Code | Meaning | | :--- | :--- | | **M2VF2** | Model series: Mini-M AC Voltage Transmitter (Dual Output) | | **-5W** | Input range: 0 – 150V AC | | **A** | Output 1: 4 – 20 mA DC | | **-R** | Power Input: 24V DC | | **2/Q** | Output 2: 1 – 5V DC / "Q" indicates special options or coating | --- ### 4. Installation and Wiring The device features a **plug-in socket base**, allowing for easy maintenance. The electronics are housed in a flame-resistant resin case. * **Terminals 1 & 10:** AC Input * **Terminals 7(+) & 8(-):** Output 1 (Current) * **Terminals 9(+) & 8(-):** Output 2 (Voltage) * **Terminals 11(+) & 12(-):** 24V DC Power ---