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PX5 Features
PX5 Features
Touch screen
function
All PX5 functions described below are operable using a color LCD touch screen
technology. Users may use a finger and/or a PDA stylus to apply pressure to the LCD
screen to result in touch screen recognition. The touch screen display is also workable
with lineman gloves on. Touch screen buttons will appear in reverse-video to show
visual feedback of contact along with audible feedback. In order to reduce power
consumption, the backlight of the LCD screen times-out after a specified
programmable time of no user activity. The backlight reactivates by touching any part
of the screen.
Scope mode
Scope mode functions as an oscilloscope, displaying real-time waveforms of voltage
and current for up to eight channels simultaneously, with one second update rate. The
colors of waveform display are user programmable. Scope mode also provides a textual
display of rms values, division for axis values, and frequency.
Meter mode
Meter mode functions as a true rms voltmeter and a true rms clamp-on ammeter.
Voltage and current measurements, along with other calculated and advanced power
parameters, are displayed on the Meter mode screens in both textual and graphical
format.
Harmonics
Harmonics display the amplitude and phase of each harmonic to the 63rd harmonic in
both graphical and textual format.
Phasor diagram
The phasor screen displays a graph that indicates phase relations between voltage and
current based upon the angles at the fundamental frequency, as determined by Fourier
analysis. Phasor diagram displays voltage and current phasors for all channels.
Functioning as a phase angle meter, the unit can display system imbalance conditions
and provides such information in textual form also. The phase angle display can also
verify if monitoring connections have been made correctly. Animated phasor demo
rotations demonstrating resistive, inductive and capacitive loads can be displayed.
Flicker
Flicker is a phenomenon due primarily to rapid small fluctuations of the voltage. Loads
that exhibit continuous, rapid variations in the load current, particularly the reactive
component, can cause voltage variations often referred to as flicker. Flicker is
characterized by modulation at a frequency typically less than 25 Hz. Modulating
signal magnitudes as low as 0.5% of the fundamental for frequencies between 5-10 Hz
can result in perceptible light flicker.
Event
An event occurs when a programmed threshold limit is crossed. An event consists of
the pre-trigger cycle(s), trigger cycle(s), and post-trigger cycle(s).
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