Fluke 434-II/435-II/437-II
Users Manual
27-4
MEASUREMENT MODES
Scope 4 voltage waveforms, 4 current waveforms, Vrms, Vfund. Arms, A fund, V @
cursor, A @ cursor, phase angles
Volts/Amps/Hertz Vrms phase to phase, Vrms phase to neutral, Vpeak, V Crest Factor, Arms,
Apeak, A Crest Factor, Hz
Dips and Swells Vrms½, Arms½, Pinst with programmable threshold levels for event detection
Harmonics
DC, 1 … 50
Harmonics Volts, THD, Harmonic Amps, K factor Amps, Harmonic Watts, THd
Watts, K factor Watts, Interharmonic Volts, Interharmonic Amps, Vrms, Arms
(relative to fundamental or to total rms)
Fluke 437-II @ 400 Hz: DC, 1 … 13
Power and Energy Vrms, Arms, Wfull, Wfund., VAfull, VAfund., VAharmonics, VAunbalance, var,
PF, DPF, CosQ, Efficiency factor, kWh forward, kWh reverse
Energy Loss Calculator Wfund, VAharmonics, VAunbalance, var, A, Loss Active, Loss Reactive, Loss
Harmonics, Loss Unbalance, Loss Neutral, Loss Cost (based upon user
defined cost / kWh)
Inverter Efficiency Wfull, Wfund, Wdc, Efficiency, Vdc, Adc, Vrms, Arms, Hz
Note: requires optional dc current clamp
Unbalance Vneg%, Vzero%, Aneg%, Azero%, Vfund, Afund, V phase angles, A phase
angles
Inrush Inrush current, Inrush duration, Arms½, Vrms½
Monitor
Vrms, Arms, harmonic Volts, THD Volts, Plt, Vrms½, Arms½, Hz, dips, swells,
interruptions, rapid voltage changes, unbalance and mains signalling.
All parameters are measured sumultaneously in accordance with EN50160.
Flagging is applied according to IEC61000-4-30 to indicate unreliable readings
due to dips or swells.
Note: not supported for measurements at 400 Hz as offered in Fluke 437-II
Flicker Pst (1min), Pst, Plt, Pinst, Vrms½, Arms½, Hz.
Note: not available in Fluke 434-II
Note: not supported for measurements at 400 Hz as offered in Fluke 437-II
Transients Transient waveforms 4x Voltage, 4x Amps, triggers: Vrms½, Arms½, Pinst
Note: not available in Fluke 434-II
Mains Signaling Relative signaling voltage and absolute signaling voltage averaged over three
seconds for up to two selectable signaling frequencies
Note: not available in Fluke 434-II
Note: not supported for measurements at 400 Hz as offered in Fluke 437-II
Power Wave Vrms½, Arms½, W, Hz and scope waveforms for Voltage, Amps and Watts
Note: not available in Fluke 434-II.
Note: not supported for measurements at 400 Hz as offered in Fluke 437-II
Logger Custom selection of up to 150 Power Quality parameters measured
simultaneously on 4 phases
Shipboard V/A/Hz Vrms, V tol%, V imb%, V mod, A rms, A imb%, Hz, Hz 10s, Hz tol, Hz tol%,
Hz mod, Hz mod% (all acc. To MIL-STD-1399-300B).
Note: not available in Fluke 434-II/435-II
1.800.868.7495info@Fluke-Direct.ca
Fluke-Direct.ca
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