The fitting of the work tube is as follows with reference to figure 2.3.1. Please note that
standard length work tubes are also referred to as tubes suitable for working in air.
They are 150 mm longer than the heated length of the furnace (see the table in section
10.0). Read section 6.2 before fitting the work tube.
Figure 2.3.1 - view showing how to fit the standard length work tube in the split tube furnace. Note
that the right hand furnace end guard (8) has been removed from the view for clarity to show the
end adaptor and tube end stop.
l
Release the fixing clips (9 in figure 2.3.1), lift the lid by the handle (1).
l
Place the work tube into the bottom half of the furnace in the tube adaptors,
between the work tube end stops (5). Note that the work tube might be a tight
fit when it is new and may need to be twisted backwards and forwards slightly as
it is placed.
l
Lower the lid by the handle and refasten the clips.
l
Note in Figure 2.3.1 the right hand furnace end guard (8) is not shown so that
the end adaptor (3) and tube end stop (5) can be seen. It is not necessary to
remove the guards to fit the work tube.
Index to numbered items in Figure 2.3.1 and 2.3.2
1. Top lifting handle
2. Work tube (diameter customer option)
3. Work tube adaptor (size dependent on work tube diameter)
4. Work tube adaptor fixing bracket
5. Work tube end stop (size dependent on work tube diameter)
6. Fixing screws M6 x 15
7. Washer M6
8. Tube furnace end guard
9. Fixing clip
9
2.0 Installation
