The **M2AMS-A4-R/CE** is a high-performance, rail-mounted signal conditioner (transducer) manufactured by **M-System**. It is specifically designed to accept a DC input signal and provide two independent, isolated DC output signals. Below is a breakdown of its technical specifications and electronic characteristics. ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Model Type** | Ultra-Slim Signal Conditioner (M2 Series) | | **Input Signal** | 4 – 20 mA DC | | **Output 1** | 4 – 20 mA DC | | **Output 2** | 4 – 20 mA DC | | **Power Input** | 100 – 240V AC (indicated by /CE marking) | | **Isolation** | 4-way isolation (input to output 1 to output 2 to power) | | **Mounting** | DIN Rail (35mm) | --- ### 2. Electronic Component Characteristics #### A. Circuitry & Isolation The device utilizes a **4-way isolation** architecture. This prevents ground loops and protects sensitive PLC/DCS equipment from high-voltage surges or electrical noise originating from the field sensors. * **Isolation Resistance:** $\ge$ 100 M$\Omega$ with 500V DC. * **Dielectric Strength:** 2000V AC @1 minute (input to output to power to ground). #### B. Performance Accuracy * **Accuracy:** $\pm$ 0.1% of span. * **Temperature Coefficient:** $\pm$ 0.015% per °C (or $\pm$ 0.008% per °F). * **Response Time:** $\le$ 0.5 seconds (0 – 90%). #### C. Power Requirements The **"R"** in the model code typically indicates the power supply type, and the **/CE** suffix confirms compliance with European Safety and EMC standards. * **Power Consumption:** Approx. 3 VA at 100V AC; 4 VA at 240V AC. * **Operating Temperature:** -5 to +55°C (23 to 131°F). --- ### 3. Pin Configuration & Wiring The unit features screw terminals for secure connections. The standard wiring logic is as follows: | Terminal No. | Function | | :--- | :--- | | **1 & 2** | Output 1 (+) / (-) | | **3 & 4** | Output 2 (+) / (-) | | **5 & 6** | Input (+) / (-) | | **7 & 8** | Power Supply (L / N) | --- ### 4. Meaning of the Model Suffix (/CE) The **/CE** marking is crucial for industrial applications as it guarantees: 1. **Electromagnetic Compatibility (EMC):** The device does not emit excessive interference and is resistant to external electrical noise. 2. **Low Voltage Directive (LVD):** Ensures the insulation and structural integrity are safe for high-voltage power inputs.