Install software (free) download at https://us.flukecal.com/literature/software-downloads/software/io-toolkit-v10
Connect 1523-24 unit to the computer and power on with probe attached. Ensure serial port is on as software will attempt to auto detect the attached instrument.
Launch Software.
Click on the probe settings button.
Choose the correct connector type.
Choose/enter the date for Probe Type, Serial#, Conversion Type, Cal date.
Then enter the parameters for the TPW, A, B, C, D, A4, B4, coefficients.
Scroll the bar down and then enter the min/max temperatures for the probe.
Click the upload button. Software will ask for pass code (1234). Parameters will then upload.