M2SBS-C1D-R/N
AI

The **M2SBS-C1D-R/N** is a specific model within the M2SBS series of **Signal Conditioners** (Isolators) manufactured by **M-System** (now MG CO., LTD). These devices are used in industrial automation to convert, isolate, and transmit DC signals between field instruments and control systems (PLC/DCS).
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### ## Technical Specifications Breakdown
The model number "M2SBS-C1D-R/N" provides specific details regarding its electronic configuration:
| Feature | Specification Code | Description |
| :--- | :--- | :--- |
| **Model Type** | **M2SBS** | Ultra-slim Signal Conditioner (Isolator) |
| **Input Signal** | **C** | 1 – 5V DC |
| **Output 1** | **1** | 4 – 20mA DC (Source output) |
| **Output 2** | **D** | 0 – 20mV DC |
| **Power Input** | **R** | 24V DC |
| **Option** | **N** | None (Standard configuration) |
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### ### Key Electronic Characteristics
1. **Triple Isolation**:
The device provides galvanic isolation between the **Input**, **Output**, and **Power supply** circuits. This protects sensitive PLC/DCS components from ground loops, electrical surges, and common-mode noise.
2. **Conversion Accuracy**:
* **Accuracy:** Typically ±0.1% of span.
* **Temperature Coefficient:** ±0.015%/°C (±0.008%/°F).
* **Response Time:** ≤ 0.5 seconds (0 – 90%).
3. **Circuit Protection**:
* **Isolation Resistance:** 100 MΩ or more with 500V DC.
* **Dielectric Strength:** 2000V AC @ 1 minute (Input to output to power to ground).
4. **Physical Interface**:
The unit is designed for **M-System's M2 series**, featuring a plug-in base structure for easy maintenance without disconnecting wires.
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### ### Typical Application Circuit
The M2SBS-C1D-R/N is commonly used when a single voltage sensor signal (1-5V) needs to be sent to two different receivers that require different signal types (Current vs. Millivolt).
```mermaid
graph LR
A[Sensor: 1-5V DC] --> B(M2SBS-C1D)
B --> C[PLC: 4-20mA]
B --> D[Recorder/Display: 0-20mV]
E[24V DC Power] --> B
```
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### ### Operational Warnings
* **Load Resistance:** For the 4-20mA output, ensure the load resistance does not exceed **550Ω**.
* **Mounting:** Designed for DIN rail mounting. Ensure adequate ventilation if multiple units are installed side-by-side to prevent heat buildup.
- ⤷What is the maximum allowable load resistance for the 4-20mA output?
- ⤷ Can this unit be powered by 110V AC instead of 24V DC?
- ⤷ How do I perform a zero/span adjustment on this specific model?