30A AC/DC Current Clamp
The 30 A precision current clamp allows you to measure from 5 mA up to 30 A without cutting, disconnecting or stripping the wire. It is ideal for measuring the currents in sensors and actuators across most modern passenger and commercial vehicles.
The TA189 provides improved sensitivity, lower noise and faster response. Featuring a 25 mm (almost 1-inch) jaw size this clamp is suitable for measuring battery drain over long periods. It also features an auto power-down facility to save battery life when not in use (this feature can be disabled for battery drain / shutdown current testing).
Using advanced Hall Effect sensors for improved sensitivity and high external field rejection as well as closed loop control for increased accuracy, the TA189 delivers a breakthrough in range and accuracy to meet the challenges of modern vehicles.
These current clamps have been designed for use with PicoScope oscilloscopes and feature additional screening to reduce noise pickup.
| TA189 30 A precision current probe electrical specifications (All accuracies stated at 23°C ± 1°C) |
|
|---|---|
| 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 |
