Directed Electronics Automate 210D Instructions d'exploitation télécharger pdf (Page 86)

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

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

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

+ 500.000 mg

m + 500.000 mg

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

1 2 ... 81 82 83 84 85 86 87 88 89 90 91 ... 187 188

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Directed Electronics Automate 210D Instructions d'exploitation Page 86

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