Current probes sense the current flowing through a conductor and convert it to a voltage that can be viewed and measured on an oscilloscope. Keysight current probes use a hybrid technology that includes a Hall-effect sensor, which senses the DC current, and a current transformer, which senses the AC current. Using split core construction, the current probe easily clips on and off of a conductor, making it unnecessary to make an electrical connection to the circuit. Measurement bandwidths from DC to 100 MHz are available.
- Learn About Probe Types
- Learn About the Probe-to-Oscilloscope Interfaces
- Keysight Current Probes Overview
- Keysight Clamp-on Current Probes Overview
Probes
| Model | Type | Interface | Bandwidth | Attenuation | Dynamic Range |
|---|---|---|---|---|---|
| N7040A/41A/42A | Current | BNC |
LF (-3dB) Bandwidth N7040A: 3.0 Hz N7041A: 12 Hz N7042A: 9.2 Hz HF (-3dB) Bandwidth N7040A: 23 MHz N7041A: 30 MHz N7042A: 30 MHz |
N7040A : 0.002 V/A (500:1) N7041A : 0.01 V/A (100:1) N7042A : 0.02 V/A (50:1) |
Peak Current N7040A: 3000A N7041A: 600A N7042A: 300 A Absolute Maximum di/dt Ratings N7040A: 100kA/μs (peak) / 1.2kA/μs (rms) N7041A; 100kA/μs (peak) / 1.2kA/μs (rms) N7042A: 70kA/μs (peak) / 1.2kA/μs (rms) |
| N7026A | Current | AutoProbe 1 | 150 MHz | 1 V/A or 0.2 V/A (automatically configured and switched by the oscilloscope) |
Maximum Continuous Current: 30ADC, 30 Arms (when powering the probe using the external power adapter) Maximum Non-continuous Peak Current (for Pulse Widths ~ 10μs): 40 Apeak (when powering the probe using the external power adapter)
With MXR/EXR oscilloscope’s main/secondary channels DC: 30Adc, Continuous AC: 30Arms, Non-continuous AC: 40Apk (with or without using an external AC power adapter) |
| N2893A | Current | AutoProbe 1 | 100 MHz | 0.1V/A |
max of: peak: 30A or On MXR/EXR oscilloscope main channels*
On MXR/EXR oscilloscope secondary channels** DC: 15Adc,
|
| N2820/1A | Current | AutoProbe 1 | 3 MHz | 0.04V/A or 0.6V/A and 6V/A or 30V/A |
20,000:1, 86 dB (N2820A) 1,000:1, 60 dB (N2821A) |
| N2783B | Current | BNC | 100 MHz | 0.1V/A | max of: peak: 50A or continuous: 30Arms |
| N2782B | Current | BNC | 50 MHz | 0.1V/A | max of: peak: 50A or continuous: 30Arms |
| N2781B | Current | BNC | 10 MHz | 0.01V/A | max of: peak: 300A or continuous: 150Arms |
| N2780B | Current | BNC | 2 MHz | 0.01V/A | max of: peak: 700A or continuous: 500Arms |
| 1147B | Current | AutoProbe 1 | 50 MHz | 0.1V/A |
15A peak, 15 ADC, On MXR/EXR oscilloscope main channels*
On MXR/EXR oscilloscope secondary channels** DC: 15Adc,
|
| 1147A
Discontinued |
Current | AutoProbe 1 | 50 MHz | 0.1V/A | max of: peak: 30A or continuous: 15Apeak |
| 1146B | Current | BNC | 100 kHz | 0.1V/A or 0.01V/A |
maximum 100A dc or peak ac |
| 1146A
Discontinued |
Current | BNC | 100 kHz | 0.1V/A or 0.01V/A |
max of: peak: 100A or continuous: 15Arms |
*: Main channels represent channel 1 to 4 for MXR/EXR four / eight-channel models.
**: Secondary channels represent channel 5 to 8 for MXR/EXR eight-channel models.