Installation
2-3
Figure 2-2 Channel Number Example
2.4 Installing the Mainframe
The electronic Load operates properly within a temperature range of 0 to 40º C.
However, you must install the electronic Load in a location that has enough space at
the top, four sides, and the rear of the unit for adequate airflow. Leave at least 3 cm
(1 inch) above the unit for adequate air circulation. Note that the feet of the unit
provide vertical space for air circulation when it is stacked. The feet of the Mainframe
can be removed for rack mounting.
If you install equipment above the electronic Load in the cabinet, you must use a filter
panel above the unit to ensure adequate air circulation. A 1U (EIA standard) panel is
sufficient.
2.4.1 Changing Line Voltage
The electronic Load can operate with a 115/230 Vac input as indicated on the rear LINE
label. The 100/200 line voltage input model is used only in Japan. If the factory set
switch on this label does not correspond to your nominal line voltage, turn the
Mainframe power off, and disconnect the power cord. Set switch to the correct line
voltage as shown in Figure 2-3.
NOTE:
Line fuses do not need to be changed when the line voltage is changed. The
line fuses will protect the electronic Load in any indicated voltage setting.
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