
Detecting Low-Frequency Sinusoidal Current Waveforms

Distributed Current Monitoring

Power Busbar Monitoring

Testing of Large Motors, Pumps, and Fans
The CP9000LFA series is a low-frequency flexible current probe with a dual-range design, and it is the industry's original probe that combines an oscilloscope probe and a digital display into one. It can directly display the effective current value without connecting any devices, and can also be connected to an oscilloscope for waveform measurement. It can achieve a wide current measurement range, ranging from 60A to 120kA. The accuracy is guaranteed to be 1% at the center of the loop, and the typical accuracy within the entire loop (except at the loop junction) is 2%. The bandwidth is up to 600kHz (with 700mm coil circumference), the typical outer diameter of the probe loop body is 8mm, and the withstand voltage is up to 10kVpk, making it very suitable for low-frequency, high-current, and high-power testing scenarios. Its main features include: The coil is lightweight, flexible and detachable, allowing it to reach areas inaccessible to many rigid probes and enabling easy connection to the measured object; Insertion loss is almost zero, only a few pH, resulting in nearly zero interference to the measured object; It is equipped with a standard BNC output interface, which facilitates connection with oscilloscopes, data loggers, digital voltmeters, etc., for observing current waveforms; It adopts the industry's original dual power supply (battery and USB), making it more flexible and convenient to use; It has an overcurrent alarm function, featuring a more user-friendly design; The LCD has a display precision of up to 4.5-digit and can display effective values from 15Hz to 400Hz.

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The probe is equipped with a high-precision LCD display.

Covers a wide current range from 60A to 120kA.

Bandwidth of 600kHz, precision up to 1%-2%.

Outer diameter of 8mm, with withstand voltage up to 10kV.

Supports flexible power supply via battery and USB.

Extremely low insertion loss, nearly zero interference.




Measurement Conditions: 23℃; 60%RH; The measured wire passes through the center of the probe's induction loop.
| Model | Sensitivity (mV/A) | Peak Current (A) | Maximum Noise (mVrms) | Low-Frequency Bandwidth -3dB (Hz) | Phase Shift (50Hz) | Peak di/dt (kA/μs) | High-Frequency Bandwidth -3dB | LCD Display Value (15Hz~400Hz) | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| X10 | X1 | X10 | X1 | X10 | X1 | X10 | X1 | |||||
| CP9060LFA | 100 | 10 | 60 | 600 | 3 | 1 | 0.45 | <0.85° | 0.015 | 0.25 | 600kHz | Arms |
| CP9120LFA | 50 | 5 | 120 | 1200 | 3 | 1 | 0.23 | <0.5° | 0.03 | 0.5 | ||
| CP9300LFA | 20 | 2 | 300 | 3000 | 2 | 1 | 0.15 | <0.35° | 0.1 | 1.2 | ||
| CP9600LFA | 10 | 1 | 600 | 6000 | 2 | 1 | 0.1 | <0.25° | 0.2 | 2.5 | ||
| CP9121LFA | 5 | 0.5 | 1.2k | 12k | 2 | 1 | 0.08 | <0.2° | 0.4 | 5 | ||
| CP9301LFA | 2 | 0.2 | 3k | 30k | 1 | 0.5 | 0.07 | <0.18° | 0.9 | 6 | ||
| CP9601LFA | 1 | 0.1 | 6k | 60k | 1 | 0.5 | 0.07 | <0.18° | 1.8 | 6 | ||
| CP9122LFA | 0.5 | 0.05 | 12k | 120k | 1 | 0.5 | 0.07 | <0.18° | 3.5 | 6 | ||

Version: 202504