RADWAG UYA 4Y, User Manual

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3. Press field for entering steel mass standard weight and enter the mass standard value as
provided in its calibration certificate.
4. Press field for entering aluminium mass standard weight and enter the mass standard value as
provided in its calibration certificate.
5. Press field for entering steel mass standard density and enter the density value.
6. Press field for entering aluminium mass standard density and enter the density value.
7. Press START field, air density determining begins.
8. Load the pan with steel mass standard, wait for a stable measurement result and press < >
button.
9. Load the pan with aluminium mass standard, wait for a stable measurement result and press
< > button.
10. Density result is displayed.
11. Press < > button to finish the procedure.
The value of determined air density is automatically assigned to <Air density> parameter in
<Settings/ Air buoyancy compensation> menu for weighing working mode.
20.6. DETERMINIG DENSITY USING PYCNOMETER
Prior the procedure start it is necessary to determine the following process related data:
•
Pycnometer weight (if pycnometer weight is known, it is measured once only when filled with
substance)
•
Pycnometer volume
The density of solids is calculated according to a formula:
o
B A
A
ρ ρ
−
=
Where:
ρ
- density of a sample
A - sample mass measured in the air
B - sample mass measured in liquid
ρ
o
- liquid density
Procedure 1 – when the pycnometer weight has been entered
1. In order to record density value for a particular product in products database, go to <Settings>
menu, set <Assign density to product> parameter and press <Product> quick access key to
make the product active.
2. Press < Pycnometer> button, respective menu is displayed, using it set the following
parameters: pycnometer weight, pycnometer volume.