Specification
Input Characteristics
Number of Inputs:
4 (3 Phase + neutral) dc-coupled
Maximum Input Voltage:
1000 Vrms
Nominal Voltage Range:
Selectable 1V to 1000V
Max. Peak Measurement Voltage:
6 kV (transient mode only)
Input Impedance:
4 MΩ / 5pF
Bandwidth:
> 10kHz, up to 100 kHz for transient mode
Scaling:
1:1, 10:1, 100:1, 1,000:1, 10,000:1 and variable
Current Input
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
1MΩ
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 IEC1000-4-30
PLL Synchronisation
4096 samples on 10/12 cycles according to IEC61000-4-7
Nominal Frequency
435-II: 50Hz and 60Hz
Display Modes
Waveform Display
Available in all modes via SCOPE key
435-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
Meter Readings
Available in all modes except Monitor and Transients, provides tabulated view of all available readings
Fully customisable 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
Available in Monitor & Harmonics mode
Event List
Available in all modes
Provides 50 / 60** cycles of waveform information & associated 1/2 cycle rms values for Volts and Amps
**50Hz / 60Hz nominal frequency according to IEC 61000-4-30
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 & Swells
Vrms 1/2, Arms 1/2, Pinst with programmable threshold levels for event detection
Harmonics dc, 1 to 50, up to 9th harmonic for 400Hz
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)
Power & Energy
Vrms, Arms, Wfull, Wfund, VAfull, VAfund, VAharmonics, VAunbalance, var, PF, DPF, CosQ, Efficiency Factor, Neutral, Loss Cost (based upon user defined cost / kWh)
Energy Loss Calculator
Wfund, VAharmonics, VAunbalance, var, A, Loss Active, Loss Reactive, Loss Harmonics, Loss Unbalance, Loss Wforward, Loss Wreverse
Inverter Efficiency (requires optional DC clamp)
Wfull, Wfund, Wdc, Efficiency, Vdc, Adc, Vrms, Arms, Hz
Unbalance
Vneg%, Vzero%, Aneg%, Azero%, Vfund, Afund, V Phase Angles, A Phase Angles
Inrush
Inrush current, inrush duration, Arms 1/2, Vrms 1/2
Monitor
Vrms, Arms, harmonic Volts, THD Volts, PLT, Vrms 1/2, Arms 1/2, 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 IEC6100-4-30 to indicate unreliable readings due to dips or swells
Flicker
Pst (1 min), Pst, Plt, Pinst, Vrms 1/2, Arms 1/2, Hz
Transients
Transient waveforms 4x Voltage, 4x Amps, triggers: Vrms 1/2, Arms 1/2, Pinst
Mains Signaling
Relative signaling voltage and absolute signaling voltage averaged over three seconds for up to two selectable signaling frequencies
Power Wave
Vrms 1/2, Arms 1/2, W, Hz and scope waveforms for voltage, amps and watts
Logger
Custom selection of up to 150 PQ parameters measured simultaneously on 4 phases
Volts
Vrms (ac + dc)
1V to 1000V phase to neutral
Resolution: 0.01V
Accuracy: +/- 0.1% of nominal voltage
Vpk
1Vpk to 1400 Vpk
Resolution: 1V
Accuracy: 5% of nominal voltage
Voltage Crest Factor (CF)
1.0 > 2.8
Resolution: 0.01
Accuracy: +/- 5%
Vrms 1/2
1V to 1000V Phase to Neutral
Resolution: 0.1V
Accuracy: +/- 0.2% of nominal voltage
Vfund
1V to 1000V phase to neutral
Resolution: 0.1V
Accuracy: +/- 0.1% of nominal voltage
Amps (accuracy excluding clamp accuracy)
Amps (ac+dc)
i430-Flex 1x
5A to 6000A
Resolution: 1A
Accuracy +/- 0.5% +/- 5 counts
i430-Flex 10x
0.5A to 600A
Resolution: 0.1A
Accuracy: +/- 0.5% +/- 5 counts
1mV/A 1x
5A to 1000A
Resolution: 1A
Accuracy: +/- 0.5% +/- 5 counts
1mV/A 10x
0.5A to 200A (ac only)
Resolution: 0.1A
Accuracy: +/- 0.5% +/- 5 counts
Apk
i430-Flex
8400 Apk
Resolution: 1 Arms
Accuracy: +/- 5%
1mV/A
5500 Apk
Resolution: 1 Arms
Accuracy: +/- 5%
A Crest Factor
1 to 10
Resolution: 0.01
Accuracy: +/- 5%
Amps 1/2
i430-Flex 1x
5A to 6000A
Resolution: 1A
Accuracy: +/- 1% +/- 10 counts
i430-Flex 10x
0.5A to 600A
Resolution: 0.1A
Accuracy: +/- 1% +/- 10 counts
1mV/A 1x
5A to 1000A
Resolution: 1A
Accuracy: +/- 1% +/- 10 counts
1mV/A 10x
0.5A to 200A (ac only)
Resolution: 0.1A
Accuracy: +/- 1% +/- 10 counts
Afund
i430-Flex 1x
5A to 6000A
Resolution: 1A
Accuracy +/- 0.5% +/- 5 counts
i430-Flex 10x
0.5A to 600A
Resolution: 0.1A
Accuracy: +/- 0.5% +/- 5 counts
1mV/A 1x
5A to 1000A
Resolution: 1A
Accuracy: +/- 0.5% +/- 5 counts
1mV/A 10x
0.5A to 200A (ac only)
Resolution: 0.1A
Accuracy: +/- 0.5% +/- 5 counts
Frequency
50Hz Nominal
42.500 Hz to 57.500 Hz
Resolution: 0.001 Hz
Accuracy: +/- 0.01 Hz
60Hz Nominal
51.000 Hz to 69.000 Hz
Resolution: 0.001 Hz
Accuracy: +/- 0.01 Hz
Power
Watts (Va, var)
i430-Flex
Max 6000 MW
Resolution: 0.1W to 1MW
Accuracy: +/- 1% +/- 10 counts
1 mV/A
Max 2000MW
Resolution: 0.1W to 1MW
Accuracy: +/- 1% +/- 10 counts
Power Factor (Cos j/DPF)
0 to 1
Resolution: 0.001
Accuracy: +/- 0.1% @ nominal load conditions
Energy
kWh (kVAh, kvarh)
i430-Flex 10x
Measurement range dependant upon clamp scaling & V nominal
Accuracy: +/- 1% +/- 10 counts
Energy Loss
i430-Flex 10x
Measurement range dependant upon clamp scaling & V nominal
Accuracy: +/- 1% +/- 10 counts, exclusing line resistance accuracy
Harmonics
Harmonic order (n)
DC, 1 to 50 Grouping: Harmonic groups according to IEC 61000-4-7
Inter-harmonic order (n)
OFF, 1 to 50 Grouping: Harmonic and Interharmonic subgroups according to IEC 61000-4-7
Volts
%f
0.0% to 100%
Resolution: 0.1%
Accuracy: +/- 0.1% +/- n x 0.1%
%r
0.0% to 100%
Resolution: 0.1%
Accuracy: +/- 0.1% +/- n x 0.4%
Absolute
0.0 to 1000V
Resolution: 0.1V
Accuracy: +/- 5%
THD
0.0% to 100%
Resolution: 0.1%
Accuracy: +/- 2.5%
Amps
%f
0.0% to 100%
Resolution: 0.1%
Accuracy: +/- 0.1% +/- n x 0.1%
%r
0.0% to 100%
Resolution: 0.1%
Accuracy: +/- 0.1% +/- n x 0.4%
Absolute
0.0 to 1000V
Resolution: 0.1V
Accuracy: +/- 5% + 5 counts
THD
0.0% to 100%
Resolution: 0.1%
Accuracy: +/- 2.5%
Watts
%f or %r
0.0% to 100%
Resolution: 0.1%
Accuracy: +/- n x 2%
Absolute
Measurement range depends on clamp scaling & V nominal
Accuracy: +/- 5% +/- n x 2% +/- 10 counts
Phase Angle
-360° to +0°
Resolution: 1°
Accuracy: +/- n x 1°
Flicker
Plt, Pst, Pst (1 min), Pinst
0.00 to 20.00
Resolution: 0.01
Accuracy: +/- 5%
Unbalance
Volts
0.0% to 20.0%
Resolution: 0.1%
Accuracy: +/- 0.1%
Amps
0.0% to 20.0%
Resolution: 0.1%
Accuracy: +/- 1%
Mains Signalling
Threshold Levels
Threshold, limits and signaling duration is programmable for two signaling frequencies
Signaling Frequency
60Hz to 3000Hz
Resolution: 0.1 Hz
Relative V%
0% to 100%
Resolution: 0.10%
Accuracy: +/- 0.4%
Absolute V3s (3 second avg.)
0.0V to 1000V
Resolution: 0.1V
Accuracy: +/- 5% of nominal voltage
Trend Recording
Method
Automatically records min, max and average values over time for all readings being displayed for the three phases and neutral simultaneously.
Sampling
5 readings/s continuous sampling per channel, 100 / 120 readings/s for 1/2 cycle values and Pinst
Recording Time
1 Hr up to 1 year, user selectable (default setting 7 days)
Averaging Time
0.25s to 2 hr, user selectable (default 1s) 10 minutes when using Monitor mode
Memory
Data is stored on SDcard (8GB included, 32GB max)
Events
Tabulated in event list, including 50/60 waveform cycles and 7.5s 1/2 cycle rms Voltage and Amps trend
Measurement Method
Vrms / Arms
10/12 cycle contiguous non-overlapping intervals using 500/4162 samples per cycle in accordance with IEC 61000-4-30
Vpeak / Apeak
Absolute highest sample value within 10/12 cycle interval with 40 μs sample resolution
V Crest Factor
Measures ratio between the Vpeak and Vrms
A Crest Factor
Measures ratio between the Apeak and Arms
Hz
Measured every 10 sec in accordance with IEC61000-4-30. Vrms½, Arms½ Value is measured over 1 cycle, commencing at a fundamental zero crossing, and refreshed each half-cycle. This technique is independent for each channel in accordance with IEC 61000-4-30.
Harmonics
Calculated from 10/12-cycle gapless harmonic group measurements on Voltage and Amps according to IEC 61000-4-7
Watt
Full and fundamental real power display. Calculates average value of instantaneous power over 10/12 cycle period for each phase. Total Active Power PT = P1 + P2 + P3.
VA
Full and fundamental apparent power display. Calculates apparent power using Vrms x Arms value over 10/12 cycle period.
var
Fundamental reactive power display. Calculates reactive power on fundamental positive sequence components. Capacitive and inductive load is indicated with capacitor and inductor icons.
VA Harmonics
Total disturbance power due to harmonics. Calculated for each phase and for total system based upon total apparent power and fundamental real power.
VA Unbalance
Unbalance power for total sytem. Calculated using symmetrical components method for fundamental apparent power and total apparent power.
Power Factor
Calculated total watt/VA
Cos
Cosine of angle between fundamental voltage and current
DPF
Calculated fundamental Watt/VA
Energy / Energy Cost
Power values are accumulated over time for kWh values. Energy cost is calculated from user defined /kWh cost variable
Unbalance
The supply voltage unbalance is evaluated using the method of symmetrical components according to IEC61000-4-30
Flicker
According to IEC 61000-4-15 flickermeter—functional and design specification. Includes 230 V 50 Hz lamp and 120 V 60 Hz lamp models.
Transient Capture
Captures waveform triggered on signal envelope. Additionally triggers on dips, swells, interruptions and Amps level
Inrush Current
The inrush current begins when the Arms half cycle rises above the inrush threshold, and ends when the Arms half cycle
rms is equal to or below the inrush threshold minus a user-selected hysteresis value. The measurement is the square root of
the mean of the squared Arms half cycle values measured during the inrush duration. Each half-cycle interval is contiguous
and non-overlapping as recommended by IEC 61000-4-30. Markers indicate inrush duration. Cursors allow measurement of
peak Arms half cycle.
Mains Signaling
Measurements are based on: either the corresponding 10/12-cycle rms value interharmonic bin or the rms of the four nearest 10/12-cycle rms value interharmonic bins per IEC 61000-4-30. Limit setup for Monitor mode follows EN50160 standard limits.
Time Synchronisation
Optional GPS430-II timesync module provides time uncertainty ≤ 20 ms or ≤ 16.7 ms for time tagging of events and time aggregated measurements. When synchronization is not available, time tolerance is ≤ 1-s/24h
Wiring Configurations
1Ø + Neutral
Single phase with neutral
1Ø SPLIT PHASE
Split Phase
1Ø IT NO NEUTRAL
Single phase system with two phase voltages without neutral
3Ø WYE
Three phase four wire system WYE
3Ø DELTA
Three phase three wire system Delta
3Ø IT
Three phase system without neutral WYE
3Ø HIGH LEG
Four wire three phase Delta system with center tapped high leg
3Ø OPEN LEG
Open delta three wire system with 2 transformer windings
2-ELEMENT
Three phase three wire system without current sensor on phase L2/B (2 watt meter method)
2 1/2 ELEMENT
Three phase four wire system without voltage sensor on phase L2/B
INVERTER EFFICIENCY
dc voltage and current input with ac output power (automatically displayed and selected in Inverter Efficiency mode)
General Specifications
Case
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 g2/Hz according to MIL-PRF-28800F Class 2
Display
Brightness: 200 cd/m2 typ. using power adapter, 90 cd/m2 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
Memory
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)
Real-Time Clock
Time and date stamp for Trend mode, Transient display, System Monitor and event capture
Environmental
Operating Temperature
0 °C ~ +40 °C; +40 °C ~ +50 °C excl. battery
Storage Temperature
-20 °C ~ +60 °C
Humidity
+10 °C ~ +30 °C: 95 % RH non-condensing
+30 °C ~ +40 °C: 75 % RH non-condensing
+40 °C ~ +50 °C: 45 % RH non-condensing
Maximum Operating Altitude
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)
Electro-Magnetic-Compatibility (EMC)
EN 61326 (2005-12) for emission and immunity
Interfaces
mini-USB-B, Isolated USB port for PC connectivity
SD card slot accessible behind instrument battery
Warranty
Three years (parts and labor) on main instrument, one year on accessories