| Technical Data |
| Voltage inputs |
| Number of inputs |
4 (3 phase + neutral) dc-coupled |
| Maximum input voltage |
1000 Vrms |
| Nominal voltage range |
Selectable 1 V to 1000 V |
| Max. peak measurement voltage |
6 kV (transient mode only) |
| Input impedance |
4 MΩ//5 pF |
| Bandwidth |
> 10 kHz, up to 100 kHz for transient mode |
| Scaling |
1:1, 10:1, 100:1, 1,000:1 10,000:1 and variable |
| Current inputs |
| Number of inputs |
4 (3 phase + neutral) dc- or ac-coupled |
| Type |
Clamp or current transformer with mV output or i430flex-TF |
| Range |
0.5 Arms to 600 Arms with included i430flex-TF (with sensitivity 10x)
5 Arms to 6000 Arms with included i430flex-TF (with sensitivity 1x)
0.1 mV/A to 1 V/A and custom for use with optional ac or dc clamps |
| Input impedance |
1 MΩ |
| Bandwidth |
> 10 kHz |
| Scaling |
1:1, 10:1, 100:1, 1,000:1 10,000:1 and variable |
| Sampling system |
| Resolution |
16 bit analog to digital converter on 8 channels |
| Maximum sampling speed |
200 kS/s on each channel simultaneously |
| RMS sampling |
5000 samples on 10/12 cycles according to IEC61000-4-30 |
| PLL synchronization |
4096 samples on 10/12 cycles according to IEC61000-4-7 |
| Nominal frequency |
434-II and 435-II: 50 Hz and 60 Hz
437-II: 50 Hz, 60 Hz and 400 Hz |
| Display modes |
| Waveform display |
Available in all modes via SCOPE key
435-II and 437-II: Default display mode for Transients function
Update rate 5x per second
Displays 4 cycles of waveform data on screen, up to 4 waveforms simultaneously |
| Phasor diagram |
Available in all modes via Scope waveform display
Default view for Unbalance mode |
| Meter readings |
Available in all modes except Monitor and Transients, provides tabulated view of all available readings
Fully customizable up to 150 readings for Logger mode |
| Trend graph |
Available in all modes except Transients
Single vertical cursor with min max and avg reading at cursor position |
| Bar graph |
Provides 50/60** cycles of waveform information and associated 1/2 cycle rms values for Volts and Amps |