Sartorius Cubis MSU116P User Manual page 98

Calculation
®
98 Cubis MSU User Manual
Examples of Calculation Formulae
1) Determination of diameter for cylindrical bodies
Definition: Diameter = 2 * V (W / ( * l * Rho))
with: V = Square root
W = weight value in g
= 3.145
l = length of sample in cm
Rho = density of sample in g/cm
+
Input: 2 V (W/(
2) Determination of mass
1. Definition: m = W * K
with: m = Mass of sample
W = Weight value
K = Correction factor
2. Definition: K = 1 - (Rho
with: Rho = Air density (kg/m
L
Rho = Density of steel (8000.00000 kg/m
ST
Rho = Density of sample (e.g., 2.4000 g/cm
G
Input:
3) Air density determination with YSS45 air density kit
Rho =
L
Rho
with:
Rho = Air density[kg/m
L
Rho = Aluminum density [kg/m
A
m = Mass of aluminum
A
W = Measured value for aluminum
A
Input: ((X + W )-(Y
a
3
(e.g., 8.30000 g/cm
+ +
100 8.3))
/ Rho ) / 1 - (Rho / Rho
L ST L G
3
), e.g., 1.2 kg/m
+
W ((1-(1.2/8000))/1-(1.2/2400)
m * W - m * W
A ST ST A
____________________________
m * W m
A ST
_________ - __________
* 1000.0 Rho
A ST
3
]
3
]
+ W ))/(((X + W )/(2.72762 +
b a
3
)
)
3
3
)
3 3
= 2400 kg/m )
* W
ST A
* 1000.0
Rho = Steel density [kg/m
ST
m = Mass of steel
ST
W = Measured value for steel
ST
1000))-((Y + W )/(7.84231 +
b
3
]
1000)))