Hioki 3274 Clamp On Probe
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- Wideband Current Probe for Oscilloscopes
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Description
Hioki flat bandwidth current probes are best-in-class current sensors for use with Memory HiCorders and high performance oscilloscopes. The 3274 supports wide DC to 10 MHz bandwidth signals and 150 A of continuous high input, letting you capture transient current signals from switching power supplies, inverters, and motor controllers. The probe is designed with a high permeability magnetic shield to reduce the effects of electric fields, making it ideal for measuring low currents or nearby high-current lines.
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)
*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.
Specifications
Basic specifications
Accuracy guaranteed: 1 year
| Frequency bandwidth | DC to 10 MHz (-3 dB) | |||||
|---|---|---|---|---|---|---|
| Rise time | 35 ns or shorter | |||||
| Noise level | 25 mA rms max. (bandwidth limited to 20 MHz) | |||||
| Continuous allowable input | 150 A rms (requires derating at frequency) | |||||
| Max. allowable peak input | 300 A peak (non continuous) 500 A peak (pulse width: 30 μs or shorter) | |||||
| 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 150 A rms) ±2.0 % rdg. (DC, 45 to 66 Hz, 150 A to 300 A peak) | |||||
| Output rate | 0.01 V/A (The output of this probe is internally terminated) | |||||
| Measurable conductors | Insulated conductor | |||||
| Core diameter | φ 20 mm (0.79 in) | |||||
| Power supply | ±12 V ± 1 V, 5.5 VA max. | |||||
| Dimensions and mass | 176 mm (6.93 in)W × 69 mm (2.72 in)H × 27 mm (1.06 in)D, 500 g (17.6 oz) Sensor cable BNC terminal: 2 m (6.56 ft), Power cable: 1 m (3.28 ft) | |||||
| Included accessories | Instruction manual ×1, Carrying case × 1 | |||||
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Hioki flat bandwidth current probes are best-in-class current sensors for use with Memory HiCorders and high performance oscilloscopes. The 3274 supports wide DC to 10 MHz bandwidth signals and 150 A of continuous high input, letting you capture transient current signals from switching power supplies, inverters, and motor controllers. The probe is designed with a high permeability magnetic shield to reduce the effects of electric fields, making it ideal for measuring low currents or nearby high-current lines.
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)
*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.
Basic specifications
Accuracy guaranteed: 1 year
| Frequency bandwidth | DC to 10 MHz (-3 dB) | |||||
|---|---|---|---|---|---|---|
| Rise time | 35 ns or shorter | |||||
| Noise level | 25 mA rms max. (bandwidth limited to 20 MHz) | |||||
| Continuous allowable input | 150 A rms (requires derating at frequency) | |||||
| Max. allowable peak input | 300 A peak (non continuous) 500 A peak (pulse width: 30 μs or shorter) | |||||
| 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 150 A rms) ±2.0 % rdg. (DC, 45 to 66 Hz, 150 A to 300 A peak) | |||||
| Output rate | 0.01 V/A (The output of this probe is internally terminated) | |||||
| Measurable conductors | Insulated conductor | |||||
| Core diameter | φ 20 mm (0.79 in) | |||||
| Power supply | ±12 V ± 1 V, 5.5 VA max. | |||||
| Dimensions and mass | 176 mm (6.93 in)W × 69 mm (2.72 in)H × 27 mm (1.06 in)D, 500 g (17.6 oz) Sensor cable BNC terminal: 2 m (6.56 ft), Power cable: 1 m (3.28 ft) | |||||
| Included accessories | Instruction manual ×1, Carrying case × 1 | |||||