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Fluke 434/435
Users Manual
13-2
The Meter screen shows all relevant numerical values: negative voltage unbalance
percentage, zero sequence voltage unbalance percentage (in 4-wire systems), negative
current unbalance percentage, zero sequence current unbalance percentage (in 4-wire
systems), fundamental phase voltage, frequency, fundamental phase current, angle
between phase-neutral voltages relative to the reference phase A/L1 and angles between
voltage and current for each phase. Additional to unbalance percentages (relative
reading), you can select absolute readings. See chapter 20, Function Preferences:
Unbalance, ENTER, Function key F1, RELATIVE ON/OFF. The available readings
depend on the selected wiring configuration.
Available function keys:
F3
Access Phasor screen. For description see below.
F4
Access Trend screen. For description see below.
F5
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.
Trend
To access the Unbalance trend screen:
f
F4
The figures in the Meter screen are instantaneous values that update constantly. Changes
in these values over time are recorded whenever the measurement is active. All values in
the Meter screen are recorded, but the Trends from each row in the Meter screen are
displayed one at a time. Press function key F1 to assign the arrow keys to row selection.
The Trend display may consist of 6 screens.
Available function keys:
F1
Assign up/down arrow keys to select a row from the Meter
screen for Trend display. The selected row is displayed in
the screen header.
F2
Cursor on/off.
F3
Assign the arrow keys to Cursor or Zoom operation.
F4
Return to Meter screen.
F5
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