Solartron Mobrey 7828 - Page 77

7828 Density Transmitter Technical Manual Calculated parameters
78285000_AA B-5
A correlation equation has been established for β from the available compressibility data;
i.e.,
log
e
C = -1.62080 + 0.00021592t + 0.87096 x 10
6
(ρ
15
)
-2
+ 4.2092t x 10
3
(ρ
15
)
-2
per bar
where
β = C x 10
4
Bar
t = Temperature in deg C
ρ = ρ
15
/ 1000 = oil density at 15 °C (kg/litre)