CLAMP ON PROBE
3273-50

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

Hioki flat bandwidth current probes are best-in-class current sensors for use with Memory HiCorders and high performance oscilloscopes. The 3273-50 offers a wide DC to 50 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 to reduce the effects of electric fields, making it ideal for measuring low currents or nearby high-current lines.

Key Features
• Waveform observation across a wide band from DC to 50 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 (3273-50, 3276)

*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)

3273-50 DC to 50 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.

CEDC

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

Frequency bandwidth DC to 50 MHz (-3 dB)
Rise time 7 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, so connect to voltage input equipment with high input impedance such as 1MΩ)
Measurable conductors Insulated conductor
Core diameter φ 5 mm (0.20 in)
Power supply ±12 V ±0.5 V, 5.6 VA max.
Dimensions and mass ±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)
Sensor cable BNC terminal: 1.5 m (4.92 ft), Power cable: 1 m (3.28 ft)
Accessories Instruction manual ×1, Soft case × 1
Catalog: CURRENT PROBE series CT6700, CT6701, 3273-50, 3274, 3275, 3276 Download PDF  [3MB] English

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