OperationInstruction_Vsision XP.pdf - 第64页
Page 56 Vision XP+ V AC 4 Equipment 4.4 The Process Chamber Operating Instructions V ersion 1.5 4.4.3 Inlet Area 4.4.4 Sensors in the inlet area Fig. 4-2 2 Inlet Are a The inlet area includes the adjusting mechanism for …
Vision XP+ VAC Page 55
4 Equipment
4.4 The Process Chamber
Operating Instructions
Version 1.5
4.4 The Process Chamber
The process zone is subdivided into the following segments: inlet area,
calming region (nitrogen lock), heating chamber, cooling tract and outlet ta-
ble. The system’s modular design allows for flexible zone setups. This
means that the number of heating zones and the cooling tract can be better
adapted to the PCBs to be soldered.
Each individual segment can be opened manually for the performance of
maintenance work.
Please refer to the data sheet which is included in the documentation regard-
ing process chamber technical data. These data make reference to standard
system types, and may vary optionally depending upon provided system
equipment.
4.4.1 Opening/Closing the Process Chamber
The process chamber is opened and closed in a stepless fashion by means
of an electric motor. The entire process chamber cannot be opened manu-
ally.
4.4.2 Removing the System Hood
Fig. 4-21 Removing the System Hood
The system hoods are removed
manually.
They are opened to this end with the
appropriate wrench and then lifted
out.
Page 56 Vision XP+ VAC
4 Equipment
4.4 The Process Chamber
Operating Instructions
Version 1.5
4.4.3 Inlet Area
4.4.4 Sensors in the inlet area
Fig. 4-22 Inlet Area
The inlet area includes the adjusting
mechanism for the conveyor sys-
tem, as well as the sensor for the in-
terfaces and for counting PCBs in
the system.
Escaping soldering vapors are
drawn off into a removable metallic
gauze filter located in the cover.
Fig. 4-23 Sensors at the Inlet area
Fig. 4-24 Sensors at the Inlet area
The plant infeed has an optical fibre
sensor for PC board identification.
The degree of soiling of the sensor
is determined via the light intensity.
Cleaning and setting is described in
detail in the “Maintenance" Chapter.
Vision XP+ VAC Page 57
4 Equipment
4.4 The Process Chamber
Operating Instructions
Version 1.5
4.4.5 Nitrogen Lock at the Inlet
Fig. 4-25 Nitrogen Lock at the Inlet
The nitrogen lock functions as a
thermal barrier between the work
area at the inlet and the heating
chamber.
It is comprised of flow barriers, and
it improves the oxygen-free state of
the air.