Practical Example: Air Buoyancy Correction in the Manufacture of an Alloy
Menu codes used in the example:
Function Code
Air buoyancy correction 2 1 8
Automatic output
of the air density and
density of the sample 7 1 2
With data ID code 7 2 2
Application: Manufacture of alloys according to stoichiometric proportions; for
example, superconductor “Nb
3
Ge” (molecular weight: niobium 41,
germanium 64)
Step/Key ID/Key Readout Data Output
Place container on pan
+ 122.650 mg
Zero the balance using
t
0.000 mg
Enter density for first sample
(germanium):
5.32 and confirm: STO-F 5.32 RhoL + 1.200 kg/
RhoG + 5.32 g /
Add germanium and press
p
+ 500.000 mg
m + 500.000 mg
t
0.000 mg
Enter density for 2nd sample
(
niobium):
8.4
and confirm using
8.4 RhoL + 1.200 kg/
STO-
F RhoG + 8.4 g /
Add niobium and press p
+ 1921.875 mg
m + 1921.875 mg
The data ID codes mean:
RhoL + 1.200 kg/ air density
RhoG + 8.4 g / density of the sample
m + 1921.875 mg weight which has been corrected for air buoyancy
* = factory setting
As an alternative, you can select this
code:
Data output – manual mode 7 1 1*
3–8
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