Test and Measurement Forum

Hello
I have a problem with data collected with the PT-104 from 4 PT100 probes.
The data I am getting out fluctuates widely, going from around 50 degrees Celcius (Average) to 70-80 and down to zero.

I am measuring on a closed circuit consisting of a heat source that heats up oil, the oil is then passed through a heat exchanger, cooled by water passing through th other side of the system.

The 4 PT-100's are placed so that they measure the temperature of the oil and water as i goes in, and comes out of the heat exchanger.
I am using the picolog recorder v. 5.21.1

The setup has previously worked quite fine, with no problems, and only a small variation from one measurement to the next, not the giant steps that i see now.
Since it was last used, nothing has changed in the setup, all that has been done is to power down the system, and let it sit.

Dear Jesper@VA,

Thankyou for your inquiry with regard to your PT-104. Sorry you have encountered some difficulties.

Please proceed to the following link and download the latest version of PicoLog 5.21..2

http://www.picotech.com/software.html

If you encounter any difficulties please do not hesitate to contact me via support@picotech.com

Kindest regards,

Stuart
Technical Specialist