ELTRA CHS-580A, Руководство по эксплуатации и обслуживанию

Страница: 19 / 35

19
Fig. 17: Single step operation
Home position Point, where the beam of vertical Laser is interrupted by the arm. Used to establish
the exact position of the arm. The arm never stays in this position, but goes to the
pickup position and then parking position, depending on the step of the crucible
loading sequence.
Pickup position Point above the prepositioned crucible for picking it up.
Parking position
Point, where the arm is located, when loader is idle (between loading sequences,
when analysis is running).
Disposal position Point above used crucibles bin, to dispose used crucible.
Pedestal position Point above pedestal to place crucible before analysis and remove it after the
analysis.
The loading sequence:
These steps are
performed only once
a) Vertical Laser check. See chapter 9.2.
b) Horizontal Laser check. See chapter 9.3.
c) Fingers Laser on. Arm goes to vertical Laser, until its
beam is interrupted (to position the arm exactly). This is
home position of the arm. Then goes to parking position.
Furnace position check (magnetic switch on the
pneumatic cylinder). If the furnace is not in the lower
position or if the magnetic switch is not adjusted the error
will be signalised by continuous beeping. See chapter 9.4.
Step-by-step loop.
Every step is initiated
by pressing the
button shortly.
1.
Crucibles Laser on. Chain is rotated until the beam of the
crucibles Laser is interrupted (to position the crucible
exactly). Arm goes to home position, then to pickup
position. If the beam is not interrupted after aprox. 22
trays have passed the Laser, error 3 is signalised by
beeping (see chapter 11).
2.
Arm to parking position.