The **M2AVS-C112-R2/N** belongs to the **M2AVS** series, which are typically high-precision, industrial-grade **Solid State Pressure Transmitters** (often manufactured by companies like Nagano Keiki or similar precision instrument specialists). These components are used to convert physical pressure into a standardized electrical signal. --- ### 1. Technical Specifications Table The model code typically breaks down into specific electronic and mechanical parameters: | Component Feature | Specification / Detail | | :--- | :--- | | **Device Type** | Solid State Pressure Transmitter | | **Pressure Type** | Gauge Pressure (Standard) | | **Output Signal** | 4 to 20mA DC (2-wire system) | | **Power Supply** | 12V to 30V DC (Typical) | | **Accuracy Class** | ±0.25% to ±0.5% F.S. (Full Scale) | | **Connection Size** | R 1/4 or G 1/4 (Depending on suffix) | | **Material** | Stainless Steel (316L) for wetted parts | --- ### 2. Electronic Architecture The internal electronic assembly consists of three primary stages: 1. **Sensing Element (Strain Gauge):** A thin-film or piezoresistive element is bonded to a diaphragm. When pressure is applied, the diaphragm deforms, changing the electrical resistance of the bridge circuit. 2. **Signal Conditioning (ASIC):** An Application-Specific Integrated Circuit (ASIC) amplifies the millivolt signal from the sensor. It performs temperature compensation to ensure the output remains stable even if the ambient temperature fluctuates. 3. **Current Loop Converter:** The electronics convert the processed signal into a **4-20mA current loop**. This is highly resistant to electrical noise over long cable runs, making it ideal for industrial environments. --- ### 3. Key Identification Features * **M2AVS Series:** High durability design for hydraulic and pneumatic applications. * **-C112:** This specific segment usually defines the pressure range (e.g., 0-10 MPa or 0-1 MPa depending on the manufacturer's catalog code). * **-R2:** Refers to the mechanical fitting (likely a tapered thread) and electrical connector type. * **-N:** Often indicates the inclusion of a specific certification or a variation in the gasket/O-ring material (like NBR). --- ### 4. Typical Wiring Diagram The "N" variant usually follows a standard 2-wire industrial configuration: ```text [ Power Supply + ] ----( Red Wire / Pin 1 )---- [ Transmitter ] [ 4-20mA Input ] ----( Black Wire / Pin 2 )--- [ Transmitter ] ``` ---