Parr Instrument 1104 - Manual (Page 5)

1104 Oxygen Combustion Vessel
w w w . p a r r i n s t . c o m 5
Preparing the Fuse When the Combustion
Cage is Used
Set the bomb head on the support stand (P/N A38A)
and attach one end of a 10 cm length of fuse wire to
the hook on the straight electrode.
Run the wire through the slot in the cage, then up
through one of the holes in the top plate. Anchor
the free end under the head of one of the nearby
screws. Form the wire into a loop that will dip down
to the combustion capsule and check the position of
the wire to be sure that it does not touch the cage
at any point except the anchorage under the screw
head.
Set the capsule with its weighed sample in the bot-
tom of the cage. Tighten the retaining screws to hold
the capsule firmly in place. Finally, bend the fuse
wire downward toward the surface of the charge.
Preparing the Fuse When the Combustion
Cage is Not Used
To replace the sample cage with the sample capsule,
unscrew the cage assembly from the bomb head
and replace it with a loop electrode (P/N 5A3). Use a
bushing (P/N 234A) in the bomb head and a lock nut
(P/N 235A) to anchor the electrode.
Capsule Support Loop