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8. WEIGHING
Basic working conditions for obtaining reliable measurement results:
-
Stable and constant temperature in a weighing room,
-
Stable foundation of a balance,
-
Selecting adequate balance settings adjusted to ambient conditions at a
workstation.
Before start of weighing process or in case of essential change of ambient
conditions at a workstation (e.g. ambient temperature change at a workstation more
than 1
°
C/h) the balance requires adjusting. The procedure of balance adjustment is
described in point 9.1 of this user manual.
Before start of weighing procedure, it is recommended to load the balance’s
weighing pan a few times with mass close to balance max capacity, Check if
unloaded balance indicates “precise zero”
(the pictogram is visible on in the
upper left corner of balance’s display) (and only if parameter P4 06 Autozero is set
to 1: yes) and whether measurement is stable –
(the pictogram is visible in the
upper right corner of the display. If the mass indication is other than zero, press
zeroing key
If the working conditions are unfavourable (i.e. unstable measurement result), then
the display previews dashes (horizontal lines). After exceeding a preset amount of
time for zeroing the indication, the balance returns to weighing mode without zeroing
the indication. In such case the user should wait for stabilization of working
conditions and once again press
→0/T←
key.
Press
Units
key to set a measuring unit. Place weighed object on balance’s
weighing pan and read the result only on stabilization of the measurement. If the
measuring unit is not displayed on pressing the
Units
key, then go to the
corresponding submenu and check the accessibility attribute of the measuring unit.
Mass indication of a load placed on balance’s weighing pan can be zeroed for
multiple times. Pay attention not to exceed maximal capacity of a balance by
applying multiple zeroing function.
During times between carrying out the following measurement series do not unplug
the balance from mains. It is recommended to switch off balance’s display by
pressing
ON/OFF
key. On repeated pressing of the
ON/OFF
key the balance is
ready for operation and does not require thermal stabilization.
A balance
PS 200/2000/X
is a dual range instrument. The accuracy of the
I weighing
range
is
d
1
=0.001g, and of the
II range
is
d
2
=0.01g.
Summary of Contents for PS/X series
Page 2: ...2 APRILE 2013...
