PT100 probe (for TS30X & TS602) – Class A

The SP11 A05-500-150 uses Class A PT100 resistance temperature sensor.

The PT100 uses the temperature-dependent change in platinum resistance, making it widely used for precise industrial measurements.

Class A provides high measurement accuracy across a wide temperature range.

The probe is designed to measure temperature within the range −50…500°C.

This allows it to be used both at sub-zero temperatures and in processes reaching several hundred degrees Celsius.

Within the SP11 family, this variant is designed primarily for Industrial Applications.

Within the range from −50 to 125°C the manufacturer specifies the typical probe accuracy as ±0,4°C.

At higher temperatures from 125 to 500°C, the typical accuracy is ±1,15°C.

This provides controlled and repeatable measurements even in demanding high-temperature processes.

The PT100 element is housed in a straight sleeve made of 304 stainless steel.

The current detailed TS60x datasheet specifies the tip dimensions as Ø4 × 30 mm.

For this variant, the manufacturer specifies a protection rating of IP30. It should therefore be noted that this design is intended primarily for industrial measurements and does not provide the same water resistance as IP67 SP11 probes.

The SP11 A05-500-150 features a 1,5 m cable using fibreglass insulation.

The manufacturer specifies the cable operating temperature range as −50…500°C.

This allows the cable to be routed in environments with significantly higher temperatures than standard PVC or silicone cables.

The manufacturer specifies the A05-500-150 use method as Contact Installation.

The probe tip should be placed at the location whose temperature is to be monitored, and the cable routed to a compatible Milesight device.

When operating at high temperatures, both the temperature of the measurement point itself and the operating conditions of the data-logging device should be considered.

Milesight lists the SP11 A05-500-150 as compatible with TS301, TS302 and TS602.

The probe serves as the external measuring element, while the main device is responsible for reading, logging, and transmitting data.

SP11 A05-500-150 is the variant designed for industrial temperature measurements up to 500°C.

SP11 B05-125-200 is the standard Class B probe up to 125°C, SP11 AF10-125-150 is the food-grade variant with a 316 stainless steel needle, and SP11 A03-050-150 is the very-low-temperature version down to −200°C.