Wideband DC to 2 MHz/500A AC/DC Current Probe for Oscilloscopes
Hioki flat bandwidth current probes are best-in-class current sensors for use with Memory HiCorders and high performance oscilloscopes. The 3275 supports wide DC to 2 MHz bandwidth signals and 500A of continuous high input, and is ideal for capturing transient current signals from switching power supplies, inverters, and motor controllers.
Use optional power supply 3269 or 3273 to drive the current probe when power from the Memory HiCorder or oscilloscope is not available.
Directly observe current waveforms up to 500 A in applications such as power device and inrush current monitoring in a wide DC to 2 MHz frequency bandwidth
• Connects directly to an oscilloscope’s BNC input terminal
• Connects directly to a Hioki Memory HiCorder to deliver waveform monitoring
• Optional power supply available for use with oscilloscopes that do not provide probe power
Basic specifications (Accuracy guaranteed for 1 year, or opening and closing of the clamp sensor 10,000 times)
Frequency bandwidth | DC to 2 MHz (-3 dB) |
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Rise time | 175 ns or shorter |
Noise level | 25 mA rms max. (bandwidth limited to 20 MHz) |
Continuous allowable input | 500 A rms |
Max. allowable peak input | 700 A peak (non continuous) |
Amplitude accuracy (30 min. after power-on, after degaussing and zero-adjustment) | ±1.0 % rdg. ±5 mV f.s. (DC, 45 to 66 Hz, 0 to 500 A rms) ±2.0 % rdg. (DC, 45 to 66 Hz, 500 A to 700 A peak) |
Output rate | 0.01 V/A *Device output is terminated internally. Use with a device having a 1 MΩ input resistance or higher. |
Max. rated voltage to earth | 600 V CAT II, 300 V CAT III (insulated wire) |
Core diameter | φ 20 mm (0.79 in) |
Power supply | ±12 V ±0.5 V, 7.2 VA max. |
Dimensions and mass | 176 mm (6.93 in) W × 69 mm (2.72 in) H × 27 mm (1.06 in) D, 520 g (18.3 oz) |
Sensor cable BNC terminal: 1.5 m (4.92 ft) (3273-50, 3276), 2 m (6.56 ft) (3274, 3275), Power cable: 1 m (3.28 ft), Power plug: FFA.0S.304.CLAC37Y / LEMO inc. | |
Accessories | Instruction manual ×1, Carrying case × 1 |
■ Power Supply 3272 (basic specifications)
Compatible models | Model 3273-50, 3274, 3275 or 3276 × 1 unit. (One sensor only) Note: May be used with up to 2 units of Model 3273 (not -50 type), and up to 2 units of Models 3273-50, 3274, 3275 or 3276 on condition that the measurement current is sufficiently low. Please check with your HIOKI distributor. |
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Power supply | 100 V or 120/ 220/ 240 V AC (specify when ordering), 50/60 Hz 20 VA max. |
Dimensions and mass | 73 mm (2.87 in) W × 110 mm (4.33 in) H × 186 mm (7.32 in) D, 1.1 kg (38.8 oz) |
Accessories | Power cord ×1, Instruction manual ×1, Spare fuse ×1 |
■ Power Supply 3269 (basic specifications)
Compatible models | Model 3273-50, 3274, 3275 or 3276 × 4 units Note: Also up to 4 units for the discontinued Model 3273 |
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Compatible sensors | 100 V to 240 V AC (free) 50/60 Hz 170 VA max. |
Dimensions and mass | 80 mm (3.15 in) W × 119 mm (4.69 in) H × 200 mm (7.87 in) D, 1.1 kg (38.8 oz) |
Accessories | Instruction manual ×1, Power cord ×1 |