Parr Instrument Attaching Platinum Fuse Wire - Manual

Revised 02/08/06
PARR INSTRUMENT COMPANY
211 Fifty Third Street Moline, Illinois 61265
Phone 800 872 7720 Fax 309 762 9453
www.parrinst.com email [email protected]
Set the bomb head on the A38A support stand and attach a 10cm length of fuse wire as shown
below in Figure 1. A pair of forceps or tweezers will be helpful for binding the wire to the electrodes.
First, fasten one end of the wire to the loop electrode (steps a thru d); then attach the other end to the
straight electrode (steps e thru h). Pull the loop downward to tighten the connections; then bend the
wire upward as in detail I. Place the capsule in the loop holder and bend the wire down to touch the
surface of the charge as shown in detail J.
Do not submerge the wire in a powdered or liquid sample. Better combustions will usually be
obtained if the loop of the fuse is set slightly above the surface. When using pelleted samples, bend the
wire so that the loop bears against the top of the pellet firmly enough to keep it from sliding against the
side of the capsule. It is also good practice to tilt the capsule slightly to one side so that the flame
emerging from it will not impinge directly on the tip of the straight electrode.
No. 295M
Attaching Platinum Fuse Wire
Figure 1