What is a PT1000 and How to Measure Them

PT1000s are the most popular types of the platinum resistance temperature sensor elements. PT1000 get their name from PT meaning platinum and 1000 referring to the resistance measuring 1000Ω at 0°C.

View the PT1000 Range 

How does the PT1000 Temperature Sensor Work?

A RTD PT1000 Temperature sensor are made from platinum, this material accurately and predictably changes its electrical resistance with the temperature. The PT1000 Resistance and Temperature are directly related to each other, meaning as the Temperature increases the Resistance will increase conversely when the Temperature decreases so does the Resistance.

View the PT1000 Range 

RTD Resistance to Temperature Calculator

Select the correct sensor type PT100 or PT1000

How to Measure a PT1000 ?

• Connect the Multimeter leads into the Resistance measuring configuration
• Set the meter to ohms - Auto scale or in the range of 1KΩ or less than 10KΩ
• Connect one probe to one leg/ wire and then connect the other probe to the other leg / wire
• PT1000 have no polarity so either wire or leg can be connected in any order

As demonstrated in the PT1000 Probe testing image the Resistance Reads 1.070KΩ = 1070Ω

1070Ω can be correlated to a temperature and using the above calculator 1070Ω =17.96°C

Which is better? PT100 or PT1000?

The choice between PT100 or a PT1000 depends on the electronics design, application and legacy installations.

The difference in reference resistance is demonstrated in the table below

Typically PT100s are used for legacy systems and PT1000 are used for newer and lower power designs

View the PT1000 Range