The **M2AMS-AD-R2/CE** is a high-performance **Analog Signal Conditioner/Transmitter** manufactured by **M-System**. It belongs to the M2 Series of plug-in signal converters, specifically designed to convert a standard DC input into two isolated DC outputs. --- ### 1. Core Technical Specifications The model code `AD-R2` specifies the power input and output configurations. | Component | Specification | Details | | :--- | :--- | :--- | | **Input** | DC Voltage/Current | Configurable (e.g., 4–20mA, 1–5V DC) | | **Output 1** | DC Voltage/Current | Primary signal (e.g., 4–20mA) | | **Output 2** | DC Voltage/Current | Secondary isolated signal | | **Power Supply** | 100 – 240V AC | Designated by the **"R"** in the code | | **Construction** | Plug-in | Base socket mounted for easy maintenance | | **Certification** | CE Marking | Compliant with European safety/EMC standards | --- ### 2. Electronic Architecture The internal circuitry is divided into three primary functional blocks to ensure signal integrity: 1. **Input Conditioning Stage:** * Uses a high-precision shunt resistor (for current inputs) or a voltage divider. * Includes a low-pass filter to eliminate high-frequency noise from the field sensor. 2. **Isolation Barrier (Magnetic/Optical):** * Features **3-way isolation** (Input to Output to Power). * Protects the control system (PLC/DCS) from ground loops and high-voltage surges. 3. **Output Driver Stage:** * Dual-output amplifiers allow the signal to be sent to two different devices (e.g., a local display and a remote PLC) simultaneously without signal loss. --- ### 3. Key Electronic Features * **Zero and Span Adjustments:** Located on the front panel, these potentiometers allow for fine-tuning the output relative to the input signal (typically ±5% adjustment range). * **Response Time:** Optimized for industrial processes, usually providing a response time of $\leq 0.5$ seconds (0 to 90%). * **Galvanic Isolation:** Rated typically at 2000V AC for 1 minute, ensuring that electrical faults in the field do not destroy the back-end electronics. --- ### 4. Application Wiring Diagram (Typical) ```text [ FIELD SENSOR ] ----> (Pins 4, 5) [ M2AMS ] (Pins 1, 8) ----> [ AC POWER ] | +----> [ Output 1: Pins 2, 3 ] | +----> [ Output 2: Pins 6, 7 ] ```