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3276

High S/N characteristics enable the measurement of 10 mA order current waveforms Wideband Current Probe for Oscilloscopes

Hioki wide frequency current probes are best-in-class current sensors for use with Memory HiCorders and high performance oscilloscopes. The 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. 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 device’s metal BNC terminal to a Memory HiCorder’s plastic BNC terminal may damage the plastic terminal or cause it to become misshapen.



Model No. (Order Code)

3276 DC to 100 MHz, 30 Arms

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.

CE
DC
Insulated conductor

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 for 1 year, Post-adjustment accuracy guaranteed for 6 months)

Frequency bandwidthDC to 100 MHz (-3 dB)
Rise time3.5 ns or shorter
Noise level2.5 mA rms max. (bandwidth limited to 20 MHz)
Continuous allowable input30 A rms (requires derating at frequency)
Max. allowable peak input50 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 rate0.1 V/A (The output of this probe is internally terminated, so connect to voltage input equipment with high input impedance such as 1MΩ)
Measurable conductorsInsulated conductor
Core diameterφ 5 mm (0.20 in)
Power supply±12 V ±0.5 V, 5.3 VA max.
Dimensions and mass175 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)
AccessoriesInstruction manual ×1, Carrying case × 1

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Catalogs

Catalog: CURRENT PROBE series CT6700, CT6701, 3273-50, 3274, 3275, 3276 Download PDF  [4MB] English

User Guides

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Manuals

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Instruction Manual English
Ver.04

Outline Drawings

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Ver.02

Declaration of Conformity


Ver.06

Drivers, Firmware

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Others

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Options

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POWER SUPPLY 3269

• Power supply for wideband current probes for output to Memory HiCorders or oscilloscopes

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POWER SUPPLY 3272

• Power supply for wideband current probes for output to Memory HiCorders or oscilloscopes

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Applications

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