w&t 57011 PT100 Temperature Sensor — 2 m Cable, 4-wire, Class A

The w&t Temperature sensor PT100 57011 is a fixed, 4-wire RTD designed for accurate resistance-based temperature measurement. The sensor features a PT100 sensing element housed in a compact probe with an integral 2 m cable terminated for four-conductor connections. Class A accuracy provides reduced measurement uncertainty, making this sensor suitable for integration with industrial controllers, data loggers and laboratory instruments that accept 4-wire PT100 inputs.

Advantages

The 4-wire connection minimizes the effect of lead resistance on readings, improving measurement accuracy over longer cable lengths. Class A tolerance ensures tighter conformity to the ITS-90 resistance-to-temperature relationship, reducing systematic errors in control and monitoring applications. The 2 m integral cable simplifies installation and reduces the need for additional wiring accessories. The sensor’s compact construction and industry-standard PT100 element make it compatible with a wide range of instrumentation and RTD input modules.

Suitable for

Key specifications

How to use

Connect the four conductors of the integral cable to the corresponding 4-wire RTD input terminals of the measurement device, observing proper color-coding or terminal mapping used by the instrument. Ensure good mechanical mounting of the probe in the medium or on the surface to be measured, avoiding loose contact or air gaps that can affect thermal coupling. Allow sufficient time for the sensor to reach thermal equilibrium with its environment before taking critical measurements.

Recommendations

For best results, use shielded and routed cable paths away from high-current conductors to minimize electrical interference. Verify instrument input configuration for 4-wire RTD mode and perform a zero or span check if the measurement system supports calibration. Avoid bending the cable sharply near the probe to prevent mechanical stress on the conductors and maintain stable readings.