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LCI40
Series IOM
6 oPeration
there are Four available operating Modes
For density that Can be Set here
•
Process:
The device measures and displays the current
operating density of the product.
•
Fixed:
The device displays a fixed density value. This value
must be entered in menu C1.2.3.
•
Referred:
The device calculates the density based on a set
reference temperature.
•
Standard:
The device calculates the standard density based on a
set reference temperature and the correction factors k0
to k2, so that a standard volume can be output.
Calculating the Density Gradient
1. Density
2. Temperature
the Following equation is used to Calculate
the density Gradient
a = (
ρ
D
-
ρ
C
) / (T
B
- T
A
)
The value for the density gradient is generally positive
as an increase in temperature usually reduces the
measured density(exception: water anomaly).
Calculating the Standard density
The measuring device can display a density which has
been corrected in terms of the standard temperature in
accordance with API 11.1. Standard 2540.
The corresponding reference temperature is entered
in menu C1.2.5. The correction factors k
0
to k
2
are
entered in menu C1.2.6 to C1.2.8.
Standard factors for gasolines are: k0 = 346.4228; k
1
=
0.4388; k
2
= 0
6.5 description of Functions
6.5.6 density Mode (Menu C1.2.2)
the Following equation is used For the
“referred” Mode:
ρ
r
=
ρ
a
+ a (t
a
- t
r
)
ρ
r
= Density at reference temperature
ρ
a
= Current measured operating density at current
operating temperature
a = Programmed temperature coefficient/density
gradient
t
a
= Current measured operating temperature
t
r
= Reference temperature
The reference temperature must be entered in menu
item C1.2.3. The density gradient is set in C1.2.4.
