The **M2AC-A5F-R/CE** is a high-precision Signal Conditioner (Transducer) manufactured by **M-System**. This specific model is designed to convert an Alternating Current (AC) input into a standard Direct Current (DC) output. Below is a detailed breakdown of its electronic specifications and characteristics. --- ### 1. Model Selection Breakdown The model number provides specific details about the internal electronic configuration: | Code Segment | Description | Specific Detail | | :--- | :--- | :--- | | **M2AC** | Series Name | M2-Unit Series AC Current Transmitter | | **A** | Input Type | AC Current (RMS value) | | **5** | Input Range | 0 – 5A AC | | **F** | Output Range | 4 – 20mA DC | | **R** | Power Input | 24V DC | | **CE** | Standards | CE Marking compliant | --- ### 2. Key Electronic Specifications #### Input Section * **Input Range:** 0 to 5A AC. * **Operational Frequency:** 40 Hz to 1 kHz. * **Input Burden:** Approximately 0.5 VA. * **Overload Capacity:** 10A AC continuously, or 50A for 10 seconds. #### Output Section * **Output Signal:** 4 – 20 mA DC. * **Load Resistance:** Up to 550 $\Omega$. * **Response Time:** $\leq$ 0.5 seconds (0 to 90%). * **Ripple:** $\leq$ 0.25% p-p. #### Performance & Isolation * **Accuracy:** $\pm$0.3% of span. * **Isolation Structure:** 3-way isolation (Input to Output to Power). * **Dielectric Strength:** 2000V AC @ 1 minute (Input to Output to Power to Ground). * **Insulation Resistance:** $\geq$ 100 M$\Omega$ with 500V DC. --- ### 3. Physical & Installation Features The unit is designed for industrial environments and features a compact, plug-in construction. * **Housing:** Flame-resistant resin (Black). * **Mounting:** Surface or DIN rail mounting. * **Terminal Screws:** M3.5 (Nickel-plated steel). * **Adjustments:** Zero and Span adjustments are accessible via the front panel ($\pm$5% range). --- ### 4. Connection Diagram (General) The electronics follow a standard 3-port isolation scheme to prevent ground loops and protect the control system from surges on the AC line. ```text [ AC Current Input ] ----> [ Rectifier/Filter ] ----> [ Isolation ] ----> [ DC Output ] (L / N) (4-20mA) ^ | [ 24V DC Power ] ``` ---