SMAR DT302, Owner'S Operation And Maintenance Manual, Page: 44 / 84

DT302 – Operation, Maintenance and Instructions Manual
3.10
Engineering Unit Selection
The user can also choose the Measured_Type:

Density (g/cm³)

Density (Kg/m³)

Relative Density @ 20°C

Relative Density @ 4°C

Generic Concentration

Baume

Brix

Plato Degree

INPM

GL

Solid Percent

Density (lb/ft³)

API.
Solid Percent (% sol)
The concentration/ density transmitter DT302 offers resources with the objective of relating Baume
degree to solid percent.
The general equation to determine the solid percent is:
%sol = a0 + a1 bme1 + a2 bme2 + a3 bme3 + a5 bme5
The table and the graph below indicate the application of the
DT302 polynomial that relates Baume
degree to solid percent, generating the polynomial:
y = 0.004768x4 - 0.76 45.407284x2 - 1200.6 11919.089787.
Generic Concentration Percentage (% conc)
For applications that demand other relation among measures, the polynomial used is:
f(a,d,t) = a
0
+ a
1
d + a
2
d
2
+ a
3
d
3
+ a d
4
+ a
5
d
5
+ a
6
d t + a
7
d
2
t + a
8
d
3
t + a
9
d t
2
+ a
10
d t
3
+ a
11
d
2
t
2
+ a
12
d
3
t
3
+ a
13
t + a
14
t
2
+ a
15
t
3
+ a
16
t
4
+ a
17
t
5
This function is applied to a higher number of applications. It relates three measurements: density,
temperature and concentration.
As the digital display used in DT301 is of 4 ½ digits, the maximum indicated value would be 19999.
When selecting the unit, be certified that in your application the value won't surpass 19999.
X Y
1 Bme %SOL.
2 35 56
3 36 56,7
4 37 57
5 37,7 57,5
6 38 57,9
7 38,3 58,2
8 38,4 58,3
9 38,5 59
10 38,6 59,2
11 39 59,3
12 39,4 59,6
13 39,7 60
14 41 60,5
15 42 61,2
16 43 61,8
y = 0.004768x
4
- 0.760813x
3
+ 45.407284x
2
- 1200.6
11919.089787
55
56
57
58
59
60
61
62
63
34 36 38 40 42 44
°Baume
% s
o
lid
POLYNOMIAL REGRESSION