6.TROUBLESHOOTING
6.1 Introduction
Possible error messages generated by the 4s2 are summarised in this chapter.
If the solutions given below do not solve the problem, please contact 4titude or
their authorised local distributor.
6.2 Error Messages
The display may show one of the following error codes. An intermittent audible
warning sound will be emitted at the same time.
Er1
:
the system cannot reach the starting position within a defined
time
Er2
:
the lifting platform does not remain in the elevated position
Er3
:
the motor cannot move the lifting platform towards the
heating plate within a defined time
Er4
:
the motor cannot move the lifting platform to the low position
within a defined time
Er5
motor over current
Er6
temperature sensor opened or disconnected
Er7
“open drawer sensor” active during elevation movement;
Er8
“platform in low position sensor” active during elevation
movement.
The errors will remain displayed until the problem is solved. To clear the error
please retry the operations that generated the error, e.g. error 7 may occur if the
drawer is pushed in but released before the motor sets in motion. To solve the
problem please push in the drawer again and hold until the motor is activated.
If any of the above errors persists switch “OFF” the unit and then switch “ON”
again.
If within 10 seconds the problem is not solved the heated plate is automatically
deactivated to avoid sample damage.
If the problem is solved within 10 seconds the unit will automatically return to
“run mode”.
Chapter
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