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10.6.
Weighing on dual range balances (ref. balance PS
200/2000.3Y series)
Transition from weighing with accuracy of the
I
weighing range
to weighing
with accuracy of the
II
weighing range
takes place automatically on
exceeding Max
1
200g (without operator’s interference). On entering the
accuracy of the II weighing range, the display indicates <
II
> pictogram on its
left side, the last digit is simultaneously blanked, and last but one digit is
differentiated.
From now on the balance continues weighing in the II weighing range.
I weighing range
II weighing range
In order to return to weighing with the accuracy of the
I
weighing range
follow below procedure:
•
take the load off balance’s weighing pan;
•
as the indication returns to zero and symbols:
→
0
←
and
are lit up,
press
→
0
←
key.
The balance returns to weighing with readability d
1
=0.001g and the marker of
II weighing range <
II
> is blanked.
10.7.
Use of air buoyancy compensation factor
The application enables correcting mass measurement errors during:
1.
Weighing loads that density considerably differs from the density of
standard used to adjusting the balance. Regularly, the balance is adjusted
with a steel mass standard with density ~8.0g/cm
3
or a brass mass
standard with density ~8.7g/cm
3
. If loads made of other substances are
weighed, then ratio indicated on below chart should apply.
Below chart presents the value of mass correction in relation to the density
of weighed load, assuming that air density is constant and equals
1.2 kg/m
3
.
