PT100 B-class 0.3 Precision Temperature Sensor 4x30mm 2m Cable

This sensor is specified with Class B (F0.3) accuracy per the IEC 60751 standard. Class B defines a tolerance of ±(0.3 + 0.005|t|)°C, where |t| is the absolute temperature in °C. It offers a robust balance of precision and cost for general industrial applications, whereas Class A provides tighter tolerances typically required for laboratory-grade instrumentation.

The 4-wire configuration uses two wires to supply a constant current to the RTD and two separate wires to measure the voltage drop across it. This method eliminates errors caused by lead wire resistance. Connect the current leads and sense leads to the corresponding terminals on a compatible RTD input module, PLC, or data logger. Ensure the excitation current is within the specified 0.3–1.0 mA range.

Yes, the SUS304 stainless steel probe sheath provides good corrosion resistance for many common liquids and industrial environments. The FEP-insulated cable is also chemically resistant. For highly corrosive media, verify the compatibility of SUS304 with the specific chemical. The sensor is not rated for a specific IP code for submersion, but the probe and cable junction are designed to be waterproof.

The specified operating temperature range is -50°C to +200°C. Exceeding 200°C may damage the internal platinum element and insulation. The probe is designed for general atmospheric pressure immersion and insertion applications. It is not rated for high-pressure vessels; for such applications, a pressure-rated thermowell should be used to house the probe.