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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 150A 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. Key Features *1 Connecting the deviceâs metal BNC terminal to a Memory HiCorderâs plastic BNC terminal may damage the plastic terminal or cause it to become misshapen. |
Model No. (Order Code)
Note: Use the Power Supply 3269/3272 for general measurements or when power is not available from the Memory Hicorder. When performing continuous measurements, be aware of offset voltage drift.   |
Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 6 months)
| 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 Ξs or shorter) |
| Amplitude accuracy (30 min. after power-on, after degaussing and zero-adjustment) | Âą1.0 % rdg. Âą1 mV f.s. (DC, 45 to 66 Hz, 0 to 150 A rms) Âą2.0 % 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, so connect to voltage input equipment with high input impedance such as 1MÎĐ) |
| Measurable conductors | Insulated conductor |
| Core diameter | Ï 20 mm (0.79 in) |
| Power supply | Âą12 V Âą 1 V, 5.5 VA max. |
| Dimensions and mass | 176 mm (6.93 in)W Ã 69 mm (2.72 in)H Ã 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) |
| Accessories | Instruction manual Ã1, Carrying case à 1 |
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| Catalog: CURRENT PROBE series CT6700, CT6701, 3273-50, 3274, 3275, 3276 | Download PDFÂ [3MB] | English |
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