Dynamic SFC332L, Operator'S Manual

Page: 91 / 148

Dynamic Flow Computers SFC332L Manual Flow Equations
— 3-8
Date: 8/1/2019
Solartron Density GM/CC
Solartron density is calculated using the frequency signal produced by a Solartron densitometer, and
applying temperature and pressure corrections as shown below.
D
E N S I T Y A T
6 8

F
A N D
0 P SI G
T
E M P E R A T U R E
C
O R R E C T E D
D
E N S I T Y
T
E M P E R A T U R E A N D
P
R E S S U R E
C
O R R E C T E D
D
E N S I T Y
A
D D I T I O N A L
E
Q U A T I O N F O R
V
E L O C I T Y O F
S
O U N D
E
F F E C T S
The following equation can provide more accurate measurement for LPG products in the density range of
0.300

D

0.550 (D is in gm/cc).
on by Solartr Supplied Constants n Calibratio K , K , K
ds microsecon in Period n Oscillatio er Densitomet t Where
t K t K K D
2 1 0


  
2
2 1 0
F re in Temperatu Where T
) (T- K ) (T- K D DT
 
  
68 ] 68 1 [
19 18
n by Solarto Supplied Constants n Calibratio , K K , K K
P K K K
P K K K
PSIG in Pressure P
: Where
P K P) K DL( DP
B A B A
B A
B A

 


  

21 21
,
20 20
21 21 21
20 20 20
21 20
1
range. this outside K Let
K DP K DP D
r
j r vos
0 . 0
) (
3

  