The **M2RS-CA-R/N** belongs to the M2RS series of compact plug-in signal conditioners, typically manufactured by **M-System**. This specific model is an **AC Current Transmitter**, designed to convert an AC current input signal into a standard DC output signal. Below is a detailed breakdown of its electronic specifications and characteristics. --- ### 1. Model Code Breakdown | Segment | Identification | Description | | :--- | :--- | :--- | | **M2RS** | Series Name | Mini-M series plug-in signal conditioner | | **CA** | Input Type | AC Current (RMS sensing) | | **R** | Power Input | 24V DC | | **N** | Output | 0 – 10V DC (Standard Voltage Output) | --- ### 2. Key Technical Specifications #### Input Section (AC Current) * **Input Range:** Typically 0 – 1A AC or 0 – 5A AC (specified at time of order). * **Input Loss:** ≤ 0.5 VA. * **Frequency Response:** 40 Hz to 1 kHz (Sine wave). * **Sensing Method:** True RMS (Root Mean Square), allowing it to handle distorted waveforms accurately. #### Output Section (DC Voltage) * **Output Signal:** 0 – 10V DC. * **Load Resistance:** Minimum 10k $\Omega$. * **Response Time:** ≤ 0.5 seconds (0 – 90%). * **Ripple:** ≤ 0.5% p-p. #### General Characteristics * **Power Consumption:** Approx. 3W. * **Isolation:** 4-way isolation (Input to Output to Power to Ground). * **Isolation Resistance:** ≥ 100 M$\Omega$ with 500V DC. * **Dielectric Strength:** 2000V AC @ 1 minute (Input to Output to Power to Ground). --- ### 3. Physical & Installation Features * **Construction:** Plug-in structure with a base socket. * **Mounting:** DIN rail or surface mounting. * **Adjustments:** Front-accessible Zero and Span adjustments (±5%). * **Status Indicator:** Power LED (Green) turns on when the device is energized. --- ### 4. Connection Diagram (General) The unit typically uses a circular 8-pin or 11-pin base. ```text Pin Assignment (Example): 1. Output (+) 2. Output (-) 3. Power (L+/+) 4. Power (N-/-) 5. Input (U) 6. Input (V) ``` --- ### 5. Applications * **Current Monitoring:** Converting signals from Current Transformers (CT) to PLC-readable 0-10V signals. * **Load Measurement:** Monitoring motor currents in industrial automation. * **Power Management:** Providing feedback for energy management systems.