INFICON XTM/2 Thin Film Deposition Monitor - Manual (Page 31)

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XTM/2 Operating Manual
3 Inspect the fuse. See Figure 2-3 .
Figure 2-3 Clip, Fuse Holder, Fuse
The Corcom fuse holder has chambers for two 1/4" x 1 1/4" (5 mm x 20 mm)
fuses. Since only one fuse is used, that fuse must be on the live (hot) side and
a conversion clip is inserted to bridge the unused fuse chamber in the neutral
side.
An additional function of the conversion clip is to act as a polarization key to
assure that only the neutral line can be bridged leaving the live (hot) line always
fused. A special feature has been built into the live side of the fuse holder
compartment of the housing. It will interfere with the conversion clip and
therefore stop the fuse holder from being inserted fully into the housing if the
clip is on the live side.
When the power entry module is flipped around for voltage changing, the
conversion clip must be re-installed to the other side. Otherwise, the fuse holder
will not seat completely into the housing and the power entry module will not
function.
The proper location of the conversion clip is at the left hand side of the voltage
number selected, that is, the upright voltage number. See
Figure 2-4 .
Conversion Clip
Fuse
Fuse
Holder