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Installation
tor tape showing its mains voltage setting. This tape must
be removed before use.
You MUST be sure that the APx515 instrument
mains power configuration is correct for the elec-
trical mains power supplied in your area. If you
are not sure, do not plug the instrument into the
mains power. Follow the instructions below to
check or change the instrument mains supply
voltage selection.
The mains power supply is applied to your APx515 instru-
ment through the power entry module located on the rear
panel. Before connecting the power cord, confirm that the
input voltage selection and fusing arrangement in the power
entry module are correct for your mains power supply.
Figure 2. Detail, power entry module on APx515 instrument
rear panel. The mains power switch is to the left.
Checking the mains supply voltage configura-
tion
The white plastic voltage indicator pin protrudes through
one of the four labeled holes in the module cover to indi-
cate the selected input voltage. Figure 2 shows the pin in the
4
second position, indicating 120 V. Check to see that the
indicated voltage matches your mains supply voltage. If it
does not, change the mains supply voltage configuration as
described below.
Opening the power entry module
Unplug the power cord from the instrument before chang-
ing fuses or performing any other operations described in
this section.
To open the power entry module, refer to Figure 3 and pro-
ceed as follows:
Figure 3. Power entry module door and fuse block.
• Remove the mains power supply cord from the power
cord connector.
• Locate the slot in the module cover door hinge. The
hinge is a the left side of the cover door, and the slot in
APx515 B Series Audio Analyzer: Installation
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