5.2.1.3
W(T
90
) Conversion
EDIT SPRT 01
PROBE SER#: 1
CONVERSION: W(T90)
RTPW: 25.412294
The W(T90) conversion displays the measurement in ITS-90 W(T
90
) values
rather than temperature. The one user-defined parameter for the W(T
90
) conver-
sion is the triple point of water resistance, RTPW.
5.2.1.4
IPTS-68 Conversion
EDIT SPRT 01
PROBE SER#: 1
CONVERSION: IPTS-68
SCALE: IPTS-68
R0: 100.00845
ALPHA: 0.00391648
DELTA: 1.4872
$
The IPTS-68 conversion calculates temperature according to the IPTS-68 speci-
fications. Only subrange 4 is implemented for temperatures below zero. The
user-defined parameters for the IPTS-68 conversion are R0 (
R
0
), ALPHA
α
,
DELTA (
δ
), A[4] (A
4
), C[4], (C
4
), and SCALE. The SCALE parameter deter-
mines whether the temperature values conform to IPTS-68 or ITS-90.
37
5 Soft-Key Functions
Probe Menu
