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Clamp-on current probes or “current clamps” enable you to measure currents without breaking the electrical circuit. Current clamps are designed with jaws that can be opened, placed around the conductor and clamped shut to form a magnetic loop around the conductor.
Current clamps offer a safe, cost-effective, simple and accurate way to take current measurements.
Our range of current clamps can be used with PicoScope Oscilloscopes and PicoLog Data Loggers, as well all major brands of oscilloscopes and multimeters.
The TA300 is a 100 kHz bandwidth, single-range 40 A AC or DC current probe using the D9 connector specific to the PicoScope 4444 differential oscilloscope. On connection with the scope, the probe is instantly sensed and the vertical range automatically set up in PicoScope software. The probe is also powered by the scope through the D9 connector.
Note: When using the PicoScope 4444 with USB power (no AC adaptor connected), sensor power is limited to a maximum of 3 x TA300 probes at once.
| TA300 Specifications | ||
|---|---|---|
| Electrical data (All accuracies are stated at 23 °C ± 1 °C) | ||
| Nominal current | 40 A AC peak or DC | |
| Measuring range (s) | 40 A | |
| Overload capacity | 500 A (60 s) | |
| Output sensitivity | 100 mV/A | |
| Accuracy | ±1% of reading ± 2 mA | |
| Resolution | ±1 mA | |
| Gain variation | ±0.02% of reading/°C | |
| Frequency range | DC to 100 kHz (0.5 dB) | |
| Power supply | 5 V nominal from PicoScope 4444 | |
| Load impedance (minimum) | > 100 kΩ and ≤ 100 pF | |
| General data | ||
| Conductor size | 25 mm diameter | |
| Output cable and connectors | 2 m long screened cable terminated with D9 plug | |
| Operating temperature | 0 °C to +50 °C | |
| Storage temperature | –20 °C to +85 °C | |
| Safety and environment | ||
| Safety compliance |
EN 61010-1 EN 61010-2-032 |
|
| Overvoltage category | 300 V CAT III | |
| Pollution degree | 2 | |
| EMC compliance | EN 61326-2-2 | |
| Environmental compliance | RoHS and WEEE | |
| General environment for safe use | Indoor use only | |
| Max. altitude for safe use | 2000 m | |
| Temperature range for safe use | 0 °C to 50 °C | |
| Max. humidity for safe use | 80% RH for temperatures up to 31 °C, decreasing linearly to 40% RH at 50 °C | |
| Max. voltage on uninsulated conductors | 300 V AC RMS or DC | |
| Max. frequency on uninsulated conductors | 1 kHz | |
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