Data Sheet

Designed and built in Europe by:
Thurlby Thandar Instruments Ltd.
Glebe Road, Huntingdon, Cambridgeshire. PE29 7DR United Kingdom
Tel: [phone] Fax: [phone]
Email: [e-mail] Web: www.aimtti.com
Brochure Part No. 82100-1440 Iss. 1A
Technical Specifications
GENERAL SPECIFICATIONS (All Modes)
Output Signal
Maximum Output: ± 10V .
Oscilloscope Input: Suitable for an input impedance of 1MW in parallel with < 30pF.
Trace Position: Wide range DC offset control within control box.
Safety
Max. Circuit Voltage 300V Cat II (on AC line circuits).
600V (on uncategorised secondary circuits inside equipment).
Max. Tip Temperature 150ºC maximum allowable temperature at probe tip.
Conformance Complies with EN61010-1 & EN61010-031
Bandwidth Control
Switch Position Full 500kHz 2Hz
Nominal Bandwidth: DC to 5MHz DC to 500kHz DC to 2Hz
Risetime: <70ns 700ns 175ms
Aberrations: <±5% <±1% <±1%.
Noise (Typical)*: 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 Delay 60ns typical (to 10%).
Bandwidth: DC to 5MHz (small signal)
Slew Rate: 15A/µs (equivalent).
Overload Indication
Indicator Threshold: Indicator LED within control box will light if output voltage exceeds
± 10V or if large magnetic fields cause the system to saturate.
Power Source
Power Supply: 5.2V at up to 5 watts from AC line adaptor (supplied).
Mechanical
Probe Dimensions 155mm x 38mm x 28mm max; 2.8mm x 1.8mm at tip
Cable Length 2m from probe tip to output BNC
EMC
Conformance Complies with EN61326
MAGNETIC FIELD MEASUREMENT (Mode = Field)
Scaling Factor: 250µT (or 200A/m) per Volt.
Accuracy and Linearity: ±3%
Maximum Field: ±2·5mT (2000A/m).
CURRENT MEASUREMENT USING TOROID (Mode = Wire)
Scaling Factor: 1 Amp per Volt.
Accuracy and Linearity: ±5%
Current Range: ±10mA to ±10A (DC + peak)
Max. Wire Diameter: 3.5mm (unbroken) or 6mm (end fed)
CURRENT MEASUREMENT IN PCB TRACKS (Mode = PCB Track)
Scaling Factor: Adjustable 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 Spacing: 0.7mm distance from sensor to PCB track set by probe design.
Calibrator: Built-in calibrator within the control box providing an AC or DC
calibration current through a 0.5mm track.
Accuracy specifications apply for the temperature range 18
o
C to 28
o
C after one hour warm-up.
Thurlby Thandar Instruments Ltd. operates a policy of continuous development and reserves the
right to alter specifications without prior notice.
The I-prober 520 is supplied complete with a fitted carrying case
which accommodates all of the items including the power supply,
instruction manual and calibration graph.
The power supply has a universal voltage input (100V to 240V) and has inter-
changeable plugs for UK, Europe, USA and Australia.