User Manual
10
Before
turning the pressure screw knob assembly (
4
) to apply a load,
tighten the lead screw handle assembly (
3
) a little further clockwise to
continue the initial compaction of the KBr powder mixture contained
within the die. When the lead screw (
3
) can no longer be hand
tightened, the KBr powder mixture is ready to be fully compressed by
application of a load provided by turning of the pressure knob screw
assembly (
4
). Begin applying a load by turning the pressure knob (
4
)
clockwise. It will be easy to turn at the start, but gets progressively
harder to turn as the pressure (a tonnage load) increases and is being
applied to the die assembly (
1
). (Use the M8 Allen Key supplied if
required in screw (
5
).) The increase in pressure will be indicated by the
pressure gauge (
13
) on the Mini-Pellet Press body.
Continue turning the pressure knob (
4
) until the pressure gauge (
13
)
needle is pointing at the 1.75 tons division indicator. At this tonnage
reading stop turning the pressure screw knob assembly (
4
). This will
be a sufficient tonnage load to have compacted the KBr powder
together to form a suitable pellet.
Note:
On the pressure gauge (
13
) there is a red colour warning area
beyond the maximum 2 ton load reading.
NEVER
over-
pressurise the Mini-Pellet Press such that the indicator needle
has entered this red colour section of the pressure gauge
.
Removing the 7mm Pellet Die Assembly from the Mini-
Pellet Press
When the 7mm pellet die assembly (
1
) has been compressed to a
sufficient tonnage load to form a solid KBr pellet within the pellet die
ring holder (
6
), the die assembly (
1
) can be removed from the Mini-
Pellet Press.
Remove the pressure (tonnage load) from the pellet die assembly (
1
)
by anticlockwise rotation of the pressure knob screw assembly (
4
).
When the pressure gauge (
13
) indicator needle drops to zero tons the
7mm pellet die assembly (
1
) should be free to be removed from the
pressing area (
2
). However, it is always best to fully retract the
pressure screw knob assembly (
4
) to its end stop, to ensure that the
piston (
11
) returns to its correct start/rest position for a new pressing.
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