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The TA189 30 A high-precision current probe is for applications requiring current measurement without the need to disconnect wiring, using closed-loop Hall effect technology to measure both AC and DC current with high stability over long periods of time. It is ideal for current leakage monitoring and battery discharge testing. When used in conjunction with an active differential voltage probe such as TA041 it can also be used for power quality analysis.
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TA189 30 A precision current probe electrical specifications (All accuracies stated at 23°C ± 1°C) |
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| Nominal current | 30 A AC peak or DC |
| Measuring range | 30 A |
| Overload capacity | 500 A (60 s) |
| Output sensitivity | 100 mV/A |
| Accuracy | ±1% of reading ± 2 mA |
| Resolution | ±1 mA |
| Gain variation | ±0.01% of reading/°C |
| Frequency range | DC to 100 kHz (0.5 dB) |
| Safety category | CAT III 300 V |
| Power supply | 9 V alkaline battery PP3, MN1604 or IEC 6LR61 |
| Load impedance (minimum) | > 100 k and 100 pF |
| General data | |
| Conductor size | 25 mm diameter |
| Output cable and connectors | 2 m long coax cable with safety BNC connector |
| Operating temperature | 0°C to +50°C |
| Storage temperature with battery removed | –20°C to +85°C |
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