Alarms - Front Panel Signaling And Shortcut Keys - Hitachi E-Compact High Power Series Operation Manual

E-Compact HP-BB3 Series
RF Power Protection:
The reflectometer has accuracy above 10% of the reflected power to react to the equipment reaching or
exceeding 20%. Therefore, accuracy in measures of reflected below 10% relative to direct power are not
guaranteed.
Protection against power grid variations (Surge):
Each part of the equipment has its independent power supply and all feature the same protection
characteristics.
Surge protection in the grid is carried out by inserting the varistors between the phases and between the
phase and the ground, thereby absorbing the mains voltage peaks and not allowing them to damage the
source.

3.1.7. ALARMS - Front Panel Signaling and Shortcut Keys

ESC
OK
FAULT:
When a fault occurs, the equipment will automatically take protection actions (Turn off or Reduce Power)
and trigger the visual alarm on the front panel ("FAULT" key lit in red). When pressing the FAULT key, the
list of alarms currently occurring will appear on the display.
PAST ALARM:
When there has been a fault and it is not necessarily occurring, the "PAST ALARM" button will be lit in
yellow. When you press it, it will show the list of alarms that occurred.
The details of each alarm and where to view it in the display menu: "> Equipment > Alarms".
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