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I-prober 520 Current Probe - Specifications

General Specifications (All Modes)
Output Signal
Maximum Output±10V
Oscilloscope InputSuitable for an input impedance of 1MΩ in parallel with < 30pF
Trace PositionWide range DC offset control within control box
Max. Circuit Voltage300V Cat II (on AC line circuits).
600V Cat 1 (on uncategorized secondary circuits inside equipment)
Max. Tip Temperature150°C
ConformanceComplies with EN61010-1 & EN61010-031

Bandwidth Control
Switch Position: FULL 500kHz 2Hz
Nominal Bandwidth: DC→5MHz DC→500kHz DC→2Hz
Risetime: <70ns 700ns 175ms
Aberrations: <±5% <±1% <±1%
Noise (typ*): 6mA rms 3mA rms 1.5mA rms
*This is the noise level for current measurement using the toroid attachment. For PCB track measurement the equivalent noise will depend upon the track width and gain setting but will be similar to the toroid measurement figure for a track width of 0.5mm.

HF Performance
(bandwidth switch at Full)
Propagation Delay60ns typical (to 10%)
BandwidthDC to 5MHz (small signal)
Slew Rate15A/µs (equivalent)
Overload Indication
Indicator ThresholdIndicator LED within control box will light if output voltage exceeds ±10V or if large magnetic fields cause the system to saturate
Power Source
Power Supply5.2V at up to 5 watts from AC line adaptor (supplied)
Probe Dimensions155mm x 38mm x 28mm max;
2.8mm x 1.8mm at tip
Cable Length2m from probe tip to output BNC
ConformanceComplies with EN61326
Field Mode Measurements
Scaling Factor250µT (or 200A/m) per Volt
Accuracy and Linearity±3%
Maximum Field±2.5mT (2000A/m)
Wire Mode Measurement (using toroid)
Scaling Factor1 Amp per Volt
Current Range±10mA to ±10A (DC + peak)
Max. Wire Diameter3.5mm (unbroken) or 6mm (end fed)
PCB Track Mode Measurements
Scaling FactorAdjustable to 1 Amp per Volt for track widths 0.2mm to 3.5mm (0.007" to 0.14") and 2 Amp per volt for track widths 3mm to 6.5mm (0.125" to 0.25") using calibrator and compensation graph
Sensor Spacing0.7mm distance from sensor to PCB track set by probe design
CalibratorBuilt-in calibrator within the control box providing an AC or DC calibration current through a 0.5mm track

*Specifications are subject to change. Please refer to the datasheet or user manual linked to from the I-prober product page for detailed specifications and updates.