Description
Product Overview
- Keysight 1146B is an AC/DC current probe for 100 A and 100 kHz.
- It uses Hall-effect sensor technology to measure AC and DC signals.
- You can measure without breaking the circuit.
- This probe replaces the discontinued 1146A with same fit and function.
Key Features
- Frequency range: DC to 100 kHz (-3dB with current de-rating)
- Maximum peak current: 100 A DC or peak AC (at 10 mV/A setting)
- Two sensitivity ranges: 100 mV/A (10A range) and 10 mV/A (100A range)
- Working voltage: 600 V maximum
- Battery: 9 V alkaline (user replaceable)
- Compatible with any Keysight oscilloscope (0.2 to 0.5 V/div, 1 MΩ BNC input)
Technical Specifications
- Model: Keysight 1146B
- Type: AC/DC Current Probe
- Frequency Response: DC to 100 kHz (-3dB)
- Max Current (10 mV/A setting): 100 A DC or peak AC
- Max Current (100 mV/A setting): 10 A DC or peak AC
- Accuracy (100 mV/A, 50mA to 10A peak): ±3% of reading (≥50mA)
- Accuracy (10 mV/A, 500mA to 40A peak): ±4% of reading (≥50mA)
- Accuracy (10 mV/A, 40A to 100A peak): 15% max at 100A
- Working Voltage: 600 V maximum
- Power Source: 9 V alkaline battery
- Output Connection: BNC (1 MΩ input required)
Compatibility & Installation
- Works with all Keysight oscilloscopes having 1 MΩ BNC input.
- Sensitivity requirement: 0.2 to 0.5 V/div on the oscilloscope.
- No calibration needed before use – just connect and set range.
- Battery life indicator helps avoid unexpected shutdowns.
5 Professional FAQs
- Can I measure both AC and DC current at the same time?
- Yes. The probe outputs the total waveform including DC offset and AC ripple.
- Why does accuracy drop above 40A on the 100mV/A range?
- The 100mV/A range is designed only for currents up to 10A. Use 10mV/A range for high currents.
- How do I know when to replace the battery?
- Low battery affects accuracy. Replace the 9V alkaline when the green LED dims or flickers.
- Can I use this probe with non-Keysight oscilloscopes?
- Yes. Any oscilloscope with 1 MΩ BNC input and 0.2 V/div sensitivity works.
- What shipping methods do you offer for this probe?
- We ship via FedEx, UPS, or DHL worldwide. Tracking provided.
Buying Guide & Warranty
- Warranty: 12 months from shipment date against defects.
- Genuine Keysight 1146B – fully tested, not a clone.
- Best for motor controllers, switching power supplies, inverters, and inductive loads.
- Includes 9V battery – ready to use out of the box.
- BNC cable length: approx 1.5 meters (standard).
- Contact for RMA or support: +86 158 8020 0923 (WhatsApp)
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