PT100 B-Class 0.3 Precision Temperature Sensor 4x30mm Probe w/ 5m Cable

This sensor is specified as Class B (F0.3) per IEC 60751. Class B accuracy provides 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 most industrial applications, whereas Class A sensors have tighter tolerances (±0.15°C + 0.002|t|) and are used for higher-precision laboratory instrumentation.

The 4-wire configuration uses two pairs of wires: one pair carries a constant excitation current to the RTD, and the other pair measures the voltage drop directly across the sensing element. This method eliminates errors caused by lead wire resistance. Connect the two current leads and two sense leads to the corresponding terminals on a compatible 4-wire RTD input module or signal conditioner for accurate measurement.

The sensor is rated for continuous operation from -50°C to +200°C. The SUS304 stainless steel probe and FEP-sheathed cable provide resistance to moisture, many chemicals, and mechanical vibration, making it suitable for immersion in non-corrosive liquids, installation in air ducts, or use in industrial machinery. Do not exceed the specified temperature range or expose it to highly corrosive media without verification.

Yes, the cable can be shortened. However, you must maintain the 4-wire integrity and properly re-terminate the ends with appropriate connectors or direct wiring to your instrument. Ensure all connections are sealed and insulated to preserve the cable's shielding and waterproof properties. It is recommended to check the system calibration after modification, as cutting the cable does not affect the sensor's intrinsic accuracy.