The **M2VS-CB-R2** is an ultra-slim, signal conditioner (isolator) belonging to the **M2VS series** manufactured by **M-System**. It is designed to convert a DC input signal into a standard DC output signal while providing electrical isolation. --- ### 1. Model Breakdown (M2VS-CB-R2) The suffix codes determine the specific electronic characteristics of this unit: | Code | Specification Type | Description | | :--- | :--- | :--- | | **C** | **Input Signal** | 1 – 5 V DC (High impedance) | | **B** | **Output Signal** | 2 – 10 V DC (Load resistance 5000 $\Omega$ min.) | | **R** | **Power Input** | 24 V DC | | **2** | **Design/Accuracy** | Standard accuracy and performance specs | --- ### 2. Key Electronic Features The device utilizes several critical electronic principles to ensure signal integrity in industrial environments: * **Three-Way Isolation:** The internal circuitry ensures that the **Input**, **Output**, and **Power** terminals are all electrically isolated from one another. This prevents ground loops and protects sensitive PLC/DCS inputs from high-voltage surges. * **Active Signal Conditioning:** Unlike passive isolators, the "R" (24V DC) power requirement means the device uses active operational amplifiers to ensure the output signal is linear and has enough drive capability (up to 5000 $\Omega$ for the 2-10V range). * **Zero/Span Adjustment:** The front panel contains two small potentiometers (Zero and Span) allowing for ±5% fine-tuning of the electronic calibration to account for line loss or sensor drift. --- ### 3. Technical Specifications Below are the electronic performance limits for this specific model: | Parameter | Specification | | :--- | :--- | | **Isolation Resistance** | 100 M$\Omega$ or more with 500 V DC | | **Dielectric Strength** | 2000 V AC @ 1 minute (Input to output to power to ground) | | **Accuracy** | ±0.1% of span | | **Temperature Coefficient** | ±0.015%/°C (±0.008%/°F) | | **Response Time** | ≤ 0.5 seconds (0 – 90%) | | **Power Consumption** | Approx. 0.8 W | --- ### 4. Wiring and Terminals The M2VS-CB-R2 uses a plug-in base or DIN-rail mounting. The typical electronic pinout is: * **Input (+/-):** Receives the 1-5V DC signal. * **Output (+/-):** Provides the isolated 2-10V DC signal. * **Power (+/-):** Connection for the 24V DC supply.