Hioki 3276 Clamp On Probe
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- Clamp on probe
- DC to 100 MHz (−3dB)
- 30 Arms maximum
- 5 mm core diameter
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Description
Hioki 3276 Clamp On Probe
Hioki wide frequency current probes are best-in-class current sensors for use with Memory HiCorders and high performance oscilloscopes. The Hioki 3276 offers a wide DC to 100 MHz bandwidth and 30A of continuous input, and applications include capturing transient current signals from switching power supplies, inverters, and motor controllers.
The probe is designed with a high permeability magnetic shield with low insertion loss to reduce derating that may result from increased sensor head heating caused by eddy currents, making it ideal for measuring current of low impedance circuits and waveforms that include high frequency components.
Use with an instrument with a high input impedance of 1 MΩ or higher.
Key Features
- Waveform observation across a wide band from DC to MHz
- Connects directly to oscilloscope or Memory HiCorder BNC input terminal (*1)
- High S/N characteristics enable the measurement of 10 mA order current waveforms
*1:Connecting the probe's metal BNC terminal to a Memory HiCorder’s plastic BNC terminal may distort or damage the plastic terminal. To avoid damage, please connect and disconnect the probe cable straight to the BNC terminal of the waveform monitoring equipment.
Wide Frequency Band
Current transformer (CT) operation is characterized by a frequency band that extends to a 100 MHz, allowing observation of current waveforms that include a broad range of frequency components. 
Basic specifications
Accuracy guaranteed: 1 year
| Frequency bandwidth | DC to 100 MHz (-3 dB) | |||||
|---|---|---|---|---|---|---|
| Rise time | 3.5 ns or shorter | |||||
| Noise level | 2.5 mA rms max. (bandwidth limited to 20 MHz) | |||||
| Continuous allowable input | 30 A rms (requires derating at frequency) | |||||
| Max. allowable peak input | 50 A peak (non continuous) | |||||
| Amplitude accuracy (30 min. after power-on, after degaussing and zero-adjustment) | ±1.0 % rdg. ±1 mV f.s. (DC, 45 to 66 Hz, 0 to 30 A rms) ±2 % rdg. (DC, 45 to 66 Hz, 30 A rms to 50 A peak) | |||||
| Output rate | 0.1 V/A (The output of this probe is internally terminated) | |||||
| Measurable conductors | Insulated conductor | |||||
| Core diameter | φ 5 mm (0.20 in) | |||||
| Power supply | ±12 V ±0.5 V, 5.3 VA max. | |||||
| Dimensions and mass | 175 mm (6.89 in)W × 18 mm (0.71 in)H × 40 mm (1.57 in)D, 240 g (8.5 oz) Sensor cable BNC terminal: 1.5 m (4.92 ft), Power cable: 1 m (3.28 ft) | |||||
| Included accessories | Instruction manual ×1, Carrying case × 1 | |||||
For more information: Hioki
Documents
Hioki 3276 Clamp On Probe
Hioki 3276 DatasheetOptions
Video
Hioki 3276 Clamp On Probe
Hioki wide frequency current probes are best-in-class current sensors for use with Memory HiCorders and high performance oscilloscopes. The Hioki 3276 offers a wide DC to 100 MHz bandwidth and 30A of continuous input, and applications include capturing transient current signals from switching power supplies, inverters, and motor controllers.
The probe is designed with a high permeability magnetic shield with low insertion loss to reduce derating that may result from increased sensor head heating caused by eddy currents, making it ideal for measuring current of low impedance circuits and waveforms that include high frequency components.
Use with an instrument with a high input impedance of 1 MΩ or higher.
Key Features
- Waveform observation across a wide band from DC to MHz
- Connects directly to oscilloscope or Memory HiCorder BNC input terminal (*1)
- High S/N characteristics enable the measurement of 10 mA order current waveforms
*1:Connecting the probe's metal BNC terminal to a Memory HiCorder’s plastic BNC terminal may distort or damage the plastic terminal. To avoid damage, please connect and disconnect the probe cable straight to the BNC terminal of the waveform monitoring equipment.
Wide Frequency Band
Current transformer (CT) operation is characterized by a frequency band that extends to a 100 MHz, allowing observation of current waveforms that include a broad range of frequency components.
Basic specifications
Accuracy guaranteed: 1 year
| Frequency bandwidth | DC to 100 MHz (-3 dB) | |||||
|---|---|---|---|---|---|---|
| Rise time | 3.5 ns or shorter | |||||
| Noise level | 2.5 mA rms max. (bandwidth limited to 20 MHz) | |||||
| Continuous allowable input | 30 A rms (requires derating at frequency) | |||||
| Max. allowable peak input | 50 A peak (non continuous) | |||||
| Amplitude accuracy (30 min. after power-on, after degaussing and zero-adjustment) | ±1.0 % rdg. ±1 mV f.s. (DC, 45 to 66 Hz, 0 to 30 A rms) ±2 % rdg. (DC, 45 to 66 Hz, 30 A rms to 50 A peak) | |||||
| Output rate | 0.1 V/A (The output of this probe is internally terminated) | |||||
| Measurable conductors | Insulated conductor | |||||
| Core diameter | φ 5 mm (0.20 in) | |||||
| Power supply | ±12 V ±0.5 V, 5.3 VA max. | |||||
| Dimensions and mass | 175 mm (6.89 in)W × 18 mm (0.71 in)H × 40 mm (1.57 in)D, 240 g (8.5 oz) Sensor cable BNC terminal: 1.5 m (4.92 ft), Power cable: 1 m (3.28 ft) | |||||
| Included accessories | Instruction manual ×1, Carrying case × 1 | |||||
For more information: Hioki