User's Manual
Table Of Contents
- Table of Contents
- General Aspects
- About This Manual
- Features of Fluke 434-II/435-II/437-II
- Basic Operations and Menu Navigation
- Display Information
- Input Connections
- Scope Waveform and Phasor
- Volts/Amps/Hertz
- Dips & Swells
- Harmonics
- Power & Energy
- Energy Loss Calculator
- Power Inverter Efficiency
- Unbalance
- Inrush
- Monitor - Power Quality Monitoring
- Flicker
- Transients
- Power Wave
- Mains Signaling
- Logger
- Shipboard V/A/Hz
- Cursor and Zoom
- Setting up the Analyzer
- Using Memory and PC
- Tips and Maintenance
- Specifications
- Appendices
- Index
Scope Waveform and Phasor
Tips and Hints 7
7-3
Tips and Hints
Scope Waveform gives a clear view of current and voltage waveform shapes. Voltage
waveforms in particular should be smooth and sinusoidal. If you see voltage distortion, it
is a good idea to check the harmonics display. The rms voltages and frequency should be
close to their nominal values.
Waveform and Phasor display are also useful to check if voltage leads and current clamps
are connected correctly. In the vector diagram the phase voltages A (L1), B (L2), and C
(L3) should appear in sequence at equal distance (120 degrees). Current vectors should
have the same direction as the voltage vector with usually less than 30 degree phase shift.