The **M2VF2-02-R/UL** is a specific model of an **M-System M2 Series** signal conditioner. Specifically, it is a **VOS2 (Voltage Output) Frequency Transmitter**. These devices are used in industrial automation to convert a pulse frequency signal into a standard DC analog voltage signal. --- ### 1. General Specifications The device acts as an interface between frequency-generating sensors (like flow meters or tachometers) and a PLC or DCS system. | Feature | Specification | | :--- | :--- | | **Model Number** | M2VF2-02-R/UL | | **Device Type** | Frequency Transmitter (Voltage Output) | | **Construction** | Plug-in base (DIN Rail or Wall mount) | | **Input Signal** | Frequency (Pulse) | | **Output Signal** | 0 – 10V DC | | **Power Input** | 24V DC | | **Approval** | UL/cUL recognized component | --- ### 2. Breakdown of the Model Suffix The specific alphanumeric code indicates the hardware configuration: * **M2VF2**: Series name for the Voltage Output Frequency Transmitter. * **02**: Identifies the output range (specifically **0 to 10V DC**). * **R**: Power input requirement (**24V DC**). * **UL**: Compliance with **Underwriters Laboratories** safety standards for the US and Canada. --- ### 3. Electronic Characteristics The internal electronics are designed for high precision and signal isolation in noisy industrial environments. #### Input Capabilities The unit can handle various pulse inputs, including: * **Dry Contact** (Relay/Switch) * **Voltage Pulse** (TTL or higher) * **Open Collector** (NPN/PNP) * **Magnetic Pickup** (Requires specific sensitivity settings) #### Isolation One of the most critical electronic features is **3-way isolation**: 1. **Input to Output** 2. **Input to Power** 3. **Output to Power** *This prevents ground loops and protects the control system from high-voltage surges on the sensor side.* #### Accuracy & Response * **Accuracy:** Typically ±0.1% of span. * **Response Time:** Approx. 0.5 seconds (standard). * **Zero/Span Adjustment:** Accessible via the front panel for field calibration. --- ### 4. Connection Diagram (General) The M2 series uses a standard socket base. Below is the typical pin assignment: ```text Pin 1: Output (+) Pin 2: Output (-) Pin 3: Input (+) Pin 4: Input (-) Pin 5: Power Supply (+) Pin 6: Power Supply (-) ``` ---