The **M2CE-1E-R2/N** is a specific model of an **M-System M2 Series Signal Conditioner**. These devices are primarily used in industrial automation and process control to isolate, convert, and transmit electrical signals. Below is a breakdown of the electronic components, specifications, and nomenclature for this model. --- ### 1. Specification Breakdown (Nomenclature) The model number provides specific details about the internal circuitry and input/output configurations: | Segment | Code | Description | | :--- | :--- | :--- | | **Model** | M2CE | Current Loop Supply (Power Transducer) | | **Input** | 1 | 4 – 20 mA DC | | **Output** | E | 1 – 5 V DC | | **Power Supply** | R2 | 11 – 27 V DC (Current Consumption: ~80mA) | | **Option** | /N | No special options (Standard construction) | --- ### 2. Core Electronic Functions The M2CE-1E-R2/N performs three primary electronic tasks: 1. **Signal Isolation (3-Port Isolation):** The internal circuitry provides galvanic isolation between the **Input**, **Output**, and **Power Supply**. This prevents ground loops and protects sensitive control equipment (like PLCs) from high-voltage surges. 2. **Transmitter Power Supply:** This specific model provides 24V DC power to a 2-wire transmitter while simultaneously receiving the 4-20mA signal from it. 3. **Signal Conversion:** It converts the current input (4-20mA) into a linearized voltage output (1-5V DC) using a precision internal resistor and operational amplifier circuit. --- ### 3. Key Electronic Parameters | Parameter | Specifications | | :--- | :--- | | **Input Resistance** | Approx. 250 $\Omega$ (Internal shunt) | | **Supply Output** | 24 - 28 V DC with short-circuit protection | | **Accuracy** | $\pm$0.1% of span | | **Response Time** | $\leq$ 0.5 seconds (0 – 90%) | | **Isolation Resistance** | $\geq$ 100 M$\Omega$ at 500 V DC | | **Dielectric Strength** | 2000 V AC @ 1 minute (Input to output to power to ground) | --- ### 4. Terminal Configuration The device typically uses a **M3 screw terminal** block. The electronic connections are usually assigned as follows: ```text Terminal | Function ------------------------- 1 | Output (+) 2 | Output (-) 3 | Not Used 4 | Input (+) [Transmitter Power] 5 | Input (-) 6 | Not Used 7 | Power Supply (L+) 8 | Power Supply (N-) ``` ---