CET Inc.
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Chapter 3 Front Panel
The meter’s LCD display and two buttons are used for both data display and setup configuration
purposes.
Figure 3-1 Front Panel Display
3.1 LED Indicator
There are two LED indicators on the PMC-340’s front panel as described below:
Communications Activities Indicator
Table 3-1 LED Indicators
3.2 Buttons
The Default Display shows the kWh
Import measurement under the Energy
menu. Pressing this button scrolls
through the available measurements in
this menu (see Table 3-4 below).
While at a particular menu, pressing this
button scrolls through the available
measurements.
Before an item is selected, pressing this
button scrolls to the next setup parameter.
If the selected parameter is a numeric
value, pressing this button increments the
selected digit. If the selected parameter is
an enumerated value, pressing this button
scrolls through the selection list.
Pressing this button at any time while in
Data Display mode will jump to the next
available menu item (see Table 3-4)
depending on where the display is at
the time.
For example, if the display currently
shows Ib under the U/I menu, pressing
<↩> now will immediately jump to the
Power menu.
Pressing this button for two seconds toggles
between Data Display mode and Setup
Configuration mode. Once inside the
Setup Configuration mode, pressing this
button selects a parameter for modification.
Once selected, the parameter value blinks
while it’s being changed.
If the selected parameter is a numeric
value, the cursor is at the right most digit by
default. Pressing this button moves the
cursor one position to the left. Once the
cursor has reached the left most digit,
pressing this button again will save the
current numeric value into memory.
Table 3-2 Buttons Description
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