The **IRS100-R55MF00** is a high-performance **Infrared (IR) Pyrometer** or non-contact temperature sensor, typically utilized in industrial automation for precise thermal monitoring. --- ## 1. Core Electronic Specifications Below are the primary technical parameters that define its electrical behavior: | Parameter | Specification | | :--- | :--- | | **Operating Voltage** | 18V to 30V DC | | **Output Signal** | 4-20 mA (Standard Current Loop) | | **Temperature Range** | Typically 0°C to 500°C (Model dependent) | | **Response Time** | ~100 ms to 150 ms | | **Optical Resolution** | 15:1 or 20:1 (Distance to Spot ratio) | | **Emissivity** | Adjustable (Fixed or 0.1 to 1.0 via software) | | **Spectral Response** | 8 µm to 14 µm (Long-wave Infrared) | --- ## 2. Key Electronic Components & Subsystems The device functions through a series of internal electronic stages: ### A. The Thermopile Detector The "heart" of the sensor. It converts incoming infrared radiation into a micro-voltage signal. This component is designed to be highly sensitive to the 8-14μm wavelength range to minimize interference from atmospheric humidity or CO2. ### B. Signal Conditioning (Pre-amp) Since the raw voltage from the thermopile is extremely small (millivolts), an internal **Operational Amplifier (Op-Amp)** circuit scales the signal while maintaining a high Signal-to-Noise Ratio (SNR). ### C. Digital Signal Processor (DSP) The analog signal is converted via an **ADC (Analog-to-Digital Converter)**. The DSP applies: * **Emissivity Compensation:** Corrects for the material surface type. * **Ambient Temperature Compensation:** Adjusts the reading based on the sensor's own internal temperature to prevent drift. ### D. 4-20mA Current Loop Driver This is the standard interface for industrial PLCs. It uses a **Voltage-to-Current converter** to ensure the signal can travel long distances without degradation due to electromagnetic interference (EMI). --- ## 3. Wiring and Pinout Configuration Most R55 series sensors use a standard M12 or pigtail connection. ```text Wire Color | Function | Description -----------|------------------|----------------------- Brown | +Vcc | Power Supply (24V DC) White | Signal Out (+) | 4-20 mA Output Blue | Common / Ground | 0V Reference Black | Configuration | (Optional) Digital COM ``` --- ## 4. Application Environments Due to its electronic casing (often IP65 rated), this part is commonly found in: * **Food Processing:** Monitoring conveyor belt temperatures. * **Plastic Extrusion:** Checking melt temperature without touching the material. * **Electrical Maintenance:** Monitoring busbars or motor bearings for overheating. ---