Wideband Current Probe for Oscilloscope
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, and is ideal for capturing transient current
signals from switching power supplies, inverters, and motor controllers.

Model No. (Order Code)

3274DC to 10 MHz, 150 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.

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 device’s metal BNC terminal to a Memory HiCorder’s plastic BNC terminal may damage the plastic terminal or cause it to become misshapen.

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 6 months)

Frequency bandwidthDC to 10 MHz (-3 dB)
Rise time35 ns or shorter
Noise level25 mA rms max. (bandwidth limited to 20 MHz)
Continuous allowable input150 A rms (requires derating at frequency)
Max. allowable peak input300 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 rate0.01 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 20 mm (0.79 in)
Power supply±12 V ± 1 V, 5.5 VA max.
Dimensions and mass176 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)
AccessoriesInstruction manual ×1, Carrying case × 1
Catalog: CURRENT PROBE series CT6700, CT6701, 3273-50, 3274, 3275, 3276Download PDF  [3MB]English

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