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Rectangular dark clamp probe with hinged jaw and BNC cable attached

Pintech

Pintech PT-702 AC/DC Current Clamp Probe 50kHz 4000A

SKU CH-7QVW-KSJNP MPN PT-702

AC/DC current clamp probe measures up to 4000 A peak with 50 kHz bandwidth and zero-flux accuracy for oscilloscopes

  • Size/Dimensions216x111x45mm
  • Measures up to 4000 A peak with 1000:1 ratio
  • Zero-flux technology eliminates core-excess errors in DC readings
  • Low insertion resistance reduces loading effect for stable long-term measurements
  • Standard BNC connector works with any oscilloscope
  • 52 mm clamp jaw fits large conductors up to 2.05 in

Zero-Flux Clamp for 4000 A Measurements

The Pintech PT-702 is an AC/DC current clamp probe built for engineers and technicians who need to measure high currents on an oscilloscope. Its zero-flux design removes core-excess errors in DC readings, while the 1000:1 ratio converts up to 4000 A peak into a 1 mV/A BNC signal. The 52 mm jaw accepts large conductors or busbars.

Thermal and Power Behaviour in Use

The probe draws power from the supplied mains adapter and cable, so it adds no load to the oscilloscope. Reduced insertion resistance keeps the loading effect on the circuit under test minimal, supporting long-term stability during extended sessions. Auto-zero accuracy of 0.1 mV limits baseline drift without manual adjustment.

50 kHz Bandwidth Defines the Application

Bandwidth reaches 50 kHz with a 7 s rise time, setting the boundary for the signals you can capture. The 47 pF load impedance and 1 MΩ coupling match standard oscilloscope inputs directly. Buyers who need to resolve faster transients or higher-frequency harmonics will need a probe with wider bandwidth.

Highlights

  • Measures up to 4000 A peak with 1000:1 ratio
  • Zero-flux technology eliminates core-excess errors in DC readings
  • Low insertion resistance reduces loading effect for stable long-term measurements
  • Standard BNC connector works with any oscilloscope
  • 52 mm clamp jaw fits large conductors up to 2.05 in

Specifications

BrandPINTECH
ModelPT-702
Size/Dimensions216x111x45mm

Questions about this item

How do I install the PT-702 clamp probe and what step do users often miss?

Connect the BNC cable to the oscilloscope, clamp around a conductor up to 52 mm diameter, then run the auto-zero function to remove the 0.1 mV offset before measuring.

What maintenance or replacement will the PT-702 need over time?

Periodically clean the clamp jaws to maintain the zero-flux accuracy, verify the auto-zero still reads within 0.1 mV, and replace the BNC cable if its 1 MΩ / 47 pF load impedance drifts.

What limit appears first during sustained high-current use of the PT-702?

The 1200 A rms continuous rating is reached before the 4000 A peak rating, so extended loads above 1200 A rms will trigger thermal limits first.

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