Operating instructions

2-14
INPUT FREQUENCY; OUTPUT FREQUENCY Screen
This screen, shown in Figure 21, shows the actual input utility voltage frequency, as
well as the actual voltage frequency being output to the connected devices.
Note: At times, the frequency values on this screen may not match, This is due
to the fact that separate circuits are used to make frequency
measurements, and there is a time delay between the two circuits for
updating this status screen. This condition is considered part of the
normal operation of the unit.
Figure 21. INPUT FREQUENCY; OUTPUT FREQUENCY Screen