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echnical Data
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Voltage inputs
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Number of inputs
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4 (3 phase + neutral) dc-coupled
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Maximum input voltage
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1000 Vrms
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Nominal voltage range
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Selectable 1 V to 1000 V
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Max. peak measurement voltage
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6 kV (transient mode only)
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Input impedance
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4 MΩ//5 pF
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Bandwidth
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> 10 kHz, up to 100 kHz for transient mode
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Scaling
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1:1, 10:1, 100:1, 1,000:1 10,000:1 and variable
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Current inputs
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Number of inputs
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4 (3 phase + neutral) dc- or ac-coupled
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Type
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Clamp or current transformer with mV output or i430flex-TF
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Range
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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
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Input impedance
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1 MΩ
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Bandwidth
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> 10 kHz
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Scaling
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1:1, 10:1, 100:1, 1,000:1 10,000:1 and variable
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Sampling system
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Resolution
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16 bit analog to digital converter on 8 channels
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Maximum sampling speed
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200 kS/s on each channel simultaneously
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RMS sampling
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5000 samples on 10/12 cycles according to IEC61000-4-30
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PLL synchronization
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4096 samples on 10/12 cycles according to IEC61000-4-7
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Nominal frequency
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434-II and 435-II: 50 Hz and 60 Hz
437-II: 50 Hz, 60 Hz and 400 Hz
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Display modes
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Waveform display
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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
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Phasor diagram
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Available in all modes via Scope waveform display
Default view for Unbalance mode
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Meter readings
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Available in all modes except Monitor and Transients, provides tabulated view of all available readings
Fully customizable up to 150 readings for Logger mode
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Trend graph
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Available in all modes except Transients
Single vertical cursor with min max and avg reading at cursor position
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Bar graph
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Provides 50/60** cycles of waveform information and associated 1/2 cycle rms values for Volts and Amps
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Measurement modes
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Scope
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4 voltage waveforms, 4 current waveforms, Vrms, Vfund. Arms, A fund, V @ cursor, A @ cursor, phase angles
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Volts/amps/hertz
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Vrms phase to phase, Vrms phase to neutral, Vpeak, V Crest Factor, Arms Apeak, A Crest Factor, Hz
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Dips and swells
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Vrms½, Arms½, Pinst with programmable threshold levels for event detection
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Harmonics dc, 1 to 50, up to 9th harmonic for 400 Hz
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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)
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Power and energy
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Vrms, Arms, Wfull, Wfund., VAfull, VAfund., VAharmonics, VAunbalance, var, PF, DPF, CosQ, Efficiency factor, Wforward, Wreverse
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Energy loss calculator
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Wfund, VAharmonics, VAunbalance, var, A, Loss Active, Loss Reactive, Loss Harmonics, Loss Unbalance, Loss Neutral, Loss Cost (based upon user defined cost / kWh)
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Inverter efficiency (requires optional dc current clamp)
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Wfull, Wfund, Wdc, Efficiency, Vdc, Adc, Vrms, Arms, Hz
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Unbalance
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Vneg%, Vzero%, Aneg%, Azero%, Vfund, Afund, V phase angles, A phase angles
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Inrush
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Inrush current, Inrush duration, Arms½, Vrms½
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Monitor
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Vrms, Arms, harmonic Volts, THD Volts, PLT, Vrms½, Arms½, Hz, dips, swells, interruptions, rapid voltage changes, unbalance and mains signalling.
All parameters are measured simultaneously in accordance with EN50160 Flagging is applied according to IEC61000-4-30 to indicate unreliable readings due to dips or swells
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Flicker (435-II and 437-II only)
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Pst(1min), Pst, Plt, Pinst, Vrms ½, Arms ½, Hz
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Transients (435-II and 437-II only)
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Transient waveforms 4x Voltage 4x Amps, triggers: Vrms ½, Arms ½, Pinst
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Mains Signaling (435-II and 437-II only)
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Relative signaling voltage and absolute signaling voltage averaged over three seconds for up to two selectable signaling frequencies
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Power Wave (435-II and 437-II only)
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Vrms½, Arms½ W, Hz and scope waveforms for voltage amps and watts
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Logger
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Custom selection of up to 150 PQ parameters measured simultaneously on 4 phases
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General specifications
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Case
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Design Rugged, shock proof with integrated protective holster
Drip and dust proof IP51 according to IEC60529 when used in tilt stand position
Shock and vibration Shock 30 g, vibration: 3 g sinusoid, random 0.03 g 2 /Hz according to MIL-PRF-28800F Class 2
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Display
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Brightness: 200 cd/m 2 typ. using power adapter, 90 cd/m 2 typical using battery power
Size: 127 mm x 88 mm (153 mm/6.0 in diagonal) LCD
Resolution: 320 x 240 pixels
Contrast and brightness: user-adjustable, temperature compensated
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Memory
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8GB SD card (SDHC compliant, FAT32 formatted) standard, upto 32GB optionally
Screen save and multiple data memories for storing data including recordings (dependent on memory size)
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Real-time clock
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Time and date stamp for Trend mode, Transient display, System Monitor and event capture
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Environmental
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Operating temperature
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0 °C ~ +40 °C; +40 °C ~ +50 °C excl. battery
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Storage temperature
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-20 °C ~ +60 °C
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Humidity
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+10 °C ~ +30 °C: 95 % RH non-condensing
+30 °C ~ +40 °C: 75 % RH non-condensing
+40 °C ~ +50 °C: 45 % RH non-condensing
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Maximum operating altitude
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Up to 2,000 m (6666 ft) for CAT IV 600 V, CAT III 1000 V
Up to 3,000 m (10,000 ft) for CAT III 600 V, CAT II 1000 V
Maximum storage altitude 12 km (40,000 ft)
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Electro-Magnetic-Compatibility (EMC)
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EN 61326 (2005-12) for emission and immunity
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Interfaces
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mini-USB-B, Isolated USB port for PC connectivity
SD card slot accessible behind instrument battery
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Warranty
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Three years (parts and labor) on main instrument, one year on accessories
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Phase angle Measurement range:
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-360° … +360°
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Included accessories
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Power options
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BC430 Power Adapter
International plug adapter set
BP290 (Single capacity Li-ion battery) 28Wh (7 hours or more)
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Leads
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TL430 Test lead and Alligator clip set
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Color coding
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WC100 color coding clips and regional decals
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Flexible current probes
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i430flex-TF, 24 inch (61cm) length, 4 clamps
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Memory, Software and PC connection
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8 GB SD card
PowerLog on CD (includes operator manuals in PDF format)
USB cable A-Bmini
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Carrying case
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C1740 Soft Case for 434-II and 435-II
C437 Hard Case with rollers for 437-II
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