Fluke 434 User Manual download pdf (Page 52)

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Users Manual

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Flicker is characterized by: short term severity Pst (measured over 1 min for fast

feedback), short term severity Pst (measured over 10 min) and a long term severity Plt

(measured over 2 hours). This data and also the related D-parameters Dc, Dmax, and TD

(acc. to EN61000-3-3) are displayed in the table.

A popup table can be switched on to show the peak values of the D-parameters that

occurred during the measurement. You can reset the stored D-parameters to zero with

Function key F5.

To access the popup table with peak D-parameters:

Pst and Plt are parameters showing flicker over a certain period of time. Momentary

flicker is shown in the PF5 submenu and is reached via Function key F3. Flicker PF5 is

displayed as a fast Trend plot.

Available function keys (popup table must be off):

Activate the popup screen with maximum D-parameters.

Access PF5 Trend screen.

Access Trend screen. For description see below.

Switch between HOLD and RUN of screen update.

Switching from HOLD to RUN invokes a menu to select

immediate (NOW) or TIMED start time which allows you

to define start and duration of the measurement.

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Fluke 434 User Manual Page 52