71
4.11 FAILCHEK
FAILCHEK
is the process by which an instrument’s failure detectors are proven to be
functioning properly. Safety agencies such as CSA, UL and TÜV require checking the
failure detection circuitry of the electrical safety instrument.
NOTE:
You should perform this process at the beginning of each day or each
shift, before testing has begun.
Select the FAILCHEK icon from the main menu and the following screen will appear:
4.11.1 Continuity FailCHEK
To perform Continuity FAILCHEK, touch the Continuity icon and the following screen
will appear:
Follow the instructions on the screen. Press the Test button on the front panel of the
Summary of Contents for HypotULTRA 7800
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Page 202: ...197 Calibration of GFI 5 0mA The calibration of GFI 5 0mA is a two step process ...