The **M2VT-161-R** is a specific model within the **M2VT Series** of signal conditioners manufactured by **M-System**. This device is a plug-in type converter designed to take a variable resistance input (such as from a potentiometer) and convert it into a standardized isolated DC output. --- ### 1. Technical Specifications The model code `M2VT-161-R` breaks down into specific electronic parameters: | Component | Code | Specification | | :--- | :--- | :--- | | **Input** | **1** | Potentiometer (100 $\Omega$ to 10 k$\Omega$) | | **Output** | **6** | 1 – 5 V DC (Low impedance) | | **Power Input** | **R** | 24 V DC | | **Mounting** | **M2VT** | Plug-in socket type | --- ### 2. Key Electronic Features * **Galvanic Isolation:** The unit provides 3-way isolation between the input, output, and power supply. This prevents ground loops and protects sensitive PLC/DCS equipment from electrical surges. * **Potentiometer Excitation:** The device supplies a reference voltage to the potentiometer. It measures the wiper position as a percentage of total resistance. * **Adjustability:** * **Zero Adjustment:** Ranges from 0% to 10%. * **Span Adjustment:** Ranges from 90% to 100%. * **Response Time:** Typically $\leq$ 0.5 seconds (0 to 90%). --- ### 3. Connection Diagram (General) The electronics are housed in a plug-in module that connects to a base socket. The typical pin configuration for this series is: ```text Pin 1: Output (+) Pin 2: Output (-) Pin 3: Not used Pin 4: Power (+) 24V DC Pin 5: Power (-) 24V DC Pin 6: Potentiometer CW (End) Pin 7: Potentiometer Wiper Pin 8: Potentiometer CCW (End) ``` --- ### 4. Typical Applications * **Valve Position Feedback:** Converting the mechanical position of a valve (via a potentiometer) into a 1-5V signal for a control system. * **Tank Level Sensing:** Using a float-operated variable resistor to monitor fluid levels. * **Signal Normalization:** Ensuring that varying resistance ranges are mapped strictly to a calibrated voltage range for data acquisition.