Megger SMART THUMP ST16, Руководство пользователя

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M
AVTMST16 Rev 1 May 2016
16
The currently selected menu item is identified by a red circle.
not selected selected
With the aid of the rotary knob, the individual menus can be accessed and values
can be entered. If a selected menu item requires a value to be adjusted, the
following dialog is displayed:
The value for the parameter can then be adapted by turning the rotary knob and
clicking it again to confirm.
High Voltage Control
Before the start of the test, the user is prompted to enable high voltage. To do
so, the green illuminated “HV ON” button
(green) must be pushed. This
lifts the discharge resistor and enables the generation of high voltage. The red
illuminated “HV OFF” button
signals that the HV output is now energized
(hot) and the green button goes dark.
The activation of high voltage requires that all conditions of the safety circuit are
met. See page 16 in Section
Safety Circuit.
The high voltage can be switched off at any time during the course of the test by
pushing the “HV OFF” button
. The test is then immediately aborted and the
system is placed in the 'Ready for operation' state. The high voltage power supply
is turned off and the entire test circuit including the SMART-THUMP is
discharged and grounded, which is indicated by the illumination of the light in
the green push button.
Safety Circuit
Introduction
Once high voltage is turned on, the system's safety circuit continuously checks all
safety-relevant parameters and switching operations of the system. Should the
safety circuit detect a violation of the monitored thresholds / conditions while in
high voltage mode, the system automatically switches the high voltage power