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Sect, I Page 2
00010-2
Model 72iA
turers' Association. The third contact is an offset
round pin added to a standard two-blade connector
which grounds the instrument chassis when used
with an appropriate receptacle. To use this NEMA
connector in a two-contact receptacle, a three-
prong to two-prong adapter should be used. When
the adapter is used, the third contact is terminated
in a short lead from the adapter which can be con¬
nected
to the outlet mounting box in order to
ground the instrument cabinet.
1-5
230 VOLT OPERATION
This instrument may be easily converted from 115
to 230 volt operation by removing two jumpers and
installing one jumper.
This changes the dual 115
volt primary windings from a parallel to a series
connection.
Refer to the schematic diagram and
Figure 4-6 for details. The main fuse (FI) should
be changed (see Table of Replaceable Parts for
the correct type of fuse).
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