Fluke 434-II/435-II/437-II
Users Manual
14-2
The Phasor Screen shows the phase relation between voltages and currents in a vector
diagram divided in 30 degree sections. The vector of the reference channel A (L1) points
to the positive horizontal direction. A similar vector diagram is displayed under Scope
Phasor. Additional numerical values are given: negative voltage or current unbalance
(Relative %), zero sequence voltage or current unbalance (Relative %), fundamental
phase voltage or current, frequency, phase angles. With function key F1 you can choose
readings of all phase voltages, all phase currents, or voltage and current in one phase.
Available function keys:
F1
Selection of signals to be displayed: V displays all voltages,
A displays all currents. A (L1), B (L2), C (L3), N (neutral)
give simultaneous display of phase voltage and current.
F2
Access 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
to define start and duration of the measurement.
Meter Screen
f
F2
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.
Available function keys:
F1
Up/down arrow keys are assigned to scroll the Meter screen.
F2
Return to Phasor screen.
F3
Access to Trend screen. For description see below.
F4
Access Events menu. The number of events that occurred is
shown.
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.
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Fluke-Direct.ca
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