Description
Hioki flat bandwidth current probes are best-in-class current sensors for use with Memory HiCorders and high performance oscilloscopes CLAMP ON PROBE 3274
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.
| 3274 | DC to 10 MHz, 150 Arms |
|---|
Use optional power supply 3269 or 3273 to drive the current probe when power from the Memory HiCorder or oscilloscope is not available.
Key Features
• Even with the wide DC to 10 MHz frequency band, current waveforms up to 150 A can be directly observed in applications such as power device and power-on in-rush current monitoring
• Connects directly to oscilloscope BNC input terminal
• Connects directly to the Memory HiCorder to provide waveform monitoring
• An optional power supply is available for use with oscilloscopes that do not provide probe power
■ 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 |
| 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 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 rate | 0.01 V/A (use with a device having a 1 MΩ input resistance or higher) |
| Core diameter | φ 20 mm (0.79 in) |
| Power supply | ±12 V ±0.5 V, 5.5 VA max. (at max. current measurement) |
| Dimensions and mass | 176 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), Power plug: FFA.0S.304.CLAC42Z / 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. |
|---|---|
| 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 |
|---|---|
| Power supply | 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 |
