9 Error messages and correction of faults
■
51
9.2
Notes on correcting faults
The following table shows faults and their possible causes. If you can-
not clear the fault on the basis of the table, please contact a Precisa
Service Engineer.
Fault
Possible cause
Weight dis-
play does not
light
• Balance not switched on
• Connection to power adaptor is interrupted
• Power supply has failed (interruption to
current)
• The power adaptor is defective
• Batteriy or Accupack empty
„OL” is shown
in display
• The weight range has been exceeded (Observe
information on the maximum weight range)
„UL” is shown
in display
• The weight range is below the range of the
balance (Weighing pan missing)
The weight
display
fluctuates
continuously
• The draft is too strong at the balance location
• The balance support is vibrating or varying
• The weighing pan is touching a foreign body
• The time chosen for Floating Display is too
short
• The material being weighed is absorbing
moisture
• The material being weighed is being blown
away, is evaporating or is subliming
• Strong temperature variations in the material
being weighed
Results of
weighing are
clearly incor-
rect
• The balance was not correctly tared
• The balance is not correctly levelled
• The calibration is no longer correct
• There are strong temperature variations
There is no
display or only
dashes
• The stability control (Balance functions) is set
too sensitively
• The time selected for Floating Display is
unsatisfactory
