The **PA-14MA-R** is a specific model of a **Miniature Pressure Sensor** (often categorized as a pressure transducer) manufactured by **Nidec Components** (formerly Nidec Copal Electronics). This electronic part is designed for high-precision pressure measurement in industrial and medical environments where space is limited. --- ### 1. Key Technical Specifications The "R" suffix typically denotes a specific pressure range or output characteristic. Below are the primary electronic specifications for the PA-14 series: | Parameter | Specification | | :--- | :--- | | **Sensor Type** | Piezoresistive (Silicon-based) | | **Pressure Type** | Gauge Pressure / Absolute Pressure (Model dependent) | | **Supply Voltage** | 12V to 24V DC (Standard operating range) | | **Output Type** | Analog Voltage (typically 1–5V) | | **Current Consumption** | $\le$ 15 mA | | **Response Time** | $\le$ 1 ms | | **Accuracy** | $\pm$ 0.5% F.S. (Full Scale) | --- ### 2. Electronic Components & Construction The PA-14MA-R is composed of three main internal stages: 1. **Sensing Element:** A silicon diaphragm with integrated piezoresistors. When pressure is applied, the diaphragm deforms, changing the electrical resistance (Wheatstone bridge circuit). 2. **Signal Conditioning (ASIC):** An internal Integrated Circuit (IC) that amplifies the micro-volt signals from the sensor element and provides temperature compensation to ensure accuracy across different thermal environments. 3. **Protection Circuitry:** Built-in protection against reverse polarity and short circuits to prevent damage during installation. --- ### 3. Connection Diagram (Standard Wiring) Most units in this series use a 3-wire system. | Wire Color | Function | Description | | :--- | :--- | :--- | | **Red** | Vcc | Positive Power Supply (12-24V) | | **Black** | GND | Common Ground | | **White** | Vout | Analog Output Signal (Pressure Data) | --- ### 4. Applications Due to its "Miniature" (MA) designation, it is used in: * **Pneumatic Equipment:** Monitoring air pressure in automated lines. * **Medical Devices:** Pressure monitoring in analytical instruments. * **Semiconductor Manufacturing:** Precise gas pressure control. ---