3.4.2 Polynomial, CVD,and IPTS-68 coefficients
The raw data for calculating Polynomial,CVD and IPTS-68 coefficients can be
imported from an ASCII text fileor exported to and ASCII file by selecting the
Import or export button on the RawData dialog.The file containing the im-
port/export raw data should be savedwith a .TXT extension.
Note: The International Settings must be set according to the information
in the Installation section before attempting to import or export raw data.
For Polynomial, Callendar-VanDusen, and IPTS-68 coefficients, the file must
follow the format outlined below in Figure 17.
A comma “,” should only beused to separate two distinct values. Do not
use the comma as a thousands separator.
The first line consists of each temperature to be used to calculate the coeffi-
cients. The temperatures do not need to be in any specific order.
The second line consists of the resistances corresponding to each of the temper-
atures in line 1. The order of the resistances must match the order of the tem-
peratures (i.e. resistance1 must be the resistance at temperature1, resistance4
must be the resistance at temperature4, etc.)
Example: ASCII text filefor Polynomial coefficients(Platinum probes).
–100.00,0.000,100.000,200.000
59.2564,100.043,139.2545,177.2587
Example: ASCII text filefor Polynomial coefficients (Thermistor probes).
0.000,20.000,40.000,60.000
75427.01,43348.02,25781.14,15830.95
Example: ASCII text file for Callendar-VanDusen coefficients.
–100.00,-40.000,0.000,200.000,400.00
59.2564,82.2547,100.043,177.2587,249.4801
27
3 Coefficients menu
Import/export file format
temperature1,temperature2,temperature3,temperature4,...,temperatureN
resistance1,resistance2,resistance3,resistance4,...,resistanceN
Figure 17 Import file format for polynomial, CVD, and IPTS-68 coefficients