2.0 Installation
Using the tube furnace horizontally
The furnace can be used either with the stand
vertically as shown in 2.3.3 or horizontally as
shown in 2.3.4.
To use horizontally simply tip the stand over
into the horizontal position making sure that
the flexible conduits are not trapped beneath
the frame. This may take 2 people to do on
the largest models.
The position of the furnace on the stand can
be adjusted if necessary.
Note: To prevent injury to the operator and
damage to the furnace this must only be
done when the furnace is switched OFF and is
cold.
2.3.4
Figure -Tube furnace posi-
tioned horizontally on the stand.
Note that the split tube furnace can only be used with the extended length work tube.
Fitting the extended work tube in a furnace
Tools required: 4 mm Allen key
The fitting of the work tube is as follows with reference to Figure 2.3.8. Extended work
tubes are 450 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.
Note it is easier to fit the work tube with the furnace in the horizontal position as shown
in figure 2.3.4.
To fit the work tube in a vertical orientation follow the steps below. Omit the use of the
end seal if not required. The same tube support design will work with or without the
tube end seal in place.
WARNING - If clamps are used without an end seal, care should be
taken not to over tighten on to a bare tube, especially if the tube is
either quartz or thin wall thickness.
l
Before the extended work tube can be fitted, the work tube end stops for the stand-
ard length work tube must be removed from both ends of the furnace. This is done
by removing the tube furnace end guard (8) and the work tube adaptor brackets (4)
to release the work tube end stop. The guards and brackets should then be refitted.
l
Fit the tube support bracket, item 15, figure 2.2. Use supplied M6 button head
screws and supplied washers.
l
Fit the extended work tube guard, item 14, figure 2.2. Use supplied M6 button head
screws and supplied washers.
l
Re-fit furnace end guard, item 13, figure 2.2. Use supplied M6 button head screws
and washers.
l
Fit tube end seal assembly as shown in figure 2.2. refer to manual that was provided
with the replacement end seals or detailed fitting instructions.
10
Summary of Contents for EVT 12/150B
Page 32: ......
Page 33: ...Notes Service Record Engineer Name Date Record of Work...
