Foreword

First of all, thank you for purchasing our product.

To use this product safely, please read this manual carefully. To avoid personal injury and prevent damage to this product or any equipment connected to it, please read the following safety instructions strictly and comply with them during operation. We shall not be liable for any personal injury or product damage caused by failure to follow these safety instructions.

Safety Instructions

• Do not clamp around bare conductors with voltage exceeding 36V.
• Disconnect power from the circuit under test before connecting or disconnecting the current probe.
• The current probe is grounded indirectly through the oscilloscope. To avoid electric shock, ensure the oscilloscope is properly grounded.
• Do not connect the current probe to any conductors exceeding the rated voltage.
• This product is designed to be powered directly by an oscilloscope. When connecting to an oscilloscope, ensure the adapter matches the oscilloscope; mismatching may damage the product.
• Before installing the adapter, check that the pins on the adapter circuit board are not bent or deformed. Excessive resistance during installation may indicate bent pins; forced installation may damage the probe socket.
• Pull out the adapter evenly and straightly to avoid deforming the pins on the adapter circuit board.
• Do not operate in wet or damp environments.
• Do not operate in flammable or explosive environments.
• Only qualified personnel are allowed to repair this product.

Product Overview

This product adopts a patented connector design, which can be directly powered by the oscilloscope and automatically set the probe attenuation ratio.

Compared with conventional current probes that require external power adapters and manual attenuation ratio settings, this product greatly simplifies test wiring and setup. When switching oscilloscope platforms, you only need to replace the adapter to match the new oscilloscope, maximizing the protection of your test investment.
To help you better understand the patented connector of this probe, we will first briefly introduce mainstream oscilloscope interfaces：

As can be seen from the figure above:

The Gen 1 interface only provides basic signal connection.

The Gen 2 interface adds a metal ring around the BNC on the basis of Gen 1, which is used to automatically set the probe attenuation ratio.

The Gen 3 interface adds power supply and communication contacts on the basis of Gen 2, which greatly improves the convenience of probe use.

This patented design adopts interchangeable adapters and is compatible with all oscilloscope interfaces from Gen 1 to Gen 3.

Below are the three different versions of this patented connector.

The product uses a new architecture sensor design, which is sturdy and durable, solving the industry pain point of easy damage to traditional high-frequency current sensors.

The unit supports an operating temperature range of -40°C to +85°C, breaking the limitation of traditional high-frequency AC/DC current probes that only work at 0°C to +50°C.

It features extremely low insertion impedance, no sensor heating, supports long-term high-current testing, and no frequency derating is required for high-frequency testing.

Probe Body Introduction

Replaceable Adapter: Used to match third-generation interfaces of different oscilloscope brands. When using the adapter, the probe can be powered directly by the oscilloscope and automatically set the attenuation ratio. Due to design limitations of some oscilloscopes, the current unit “A” may not display in auto mode. To show the unit, remove the pin corresponding to the metal ring around the BNC and set the attenuation ratio manually. Reinstall the pin to restore auto mode.

• Unlock Handle: Rotate counterclockwise to unlock and remove the probe. When inserted into the oscilloscope, the handle is normally locked; gently turn clockwise to lock if needed.
• Range Indicator: Shows the current range for optimal performance.
• Offset Adjustment: Push the wheel up to move the oscilloscope baseline up; push down to move the baseline down. Calibrate to zero before testing; re-zero may be needed after switching ranges.

Range Switch Button (GAIN): Switches between 00X and 1000X.

 Technical Specifications

Operating Steps

1、Select the power supply mode according to the oscilloscope interface. Set the oscilloscope impedance to 1MΩ and DC coupling.

• For 3rd-generation oscilloscope interfaces: use the replaceable adapter, which allows direct power supply from the oscilloscope and automatic attenuation ratio setting for the most convenient operation.
• For 2nd-generation oscilloscope interfaces: remove the replaceable adapter while keeping the pin on the unlock handle. Automatic probe attenuation ratio setting is available on some oscilloscope brands. Power is supplied via a USBTypeC cable from the oscilloscope USB port or an external USBA adapter.
• For 1st-generation oscilloscope interfaces: the probe attenuation ratio can only be set manually. Power is supplied via a USBTypeC cable from the oscilloscope USB port or an external USBA adapter.
•  2、Select the appropriate range according to the magnitude of the measured current. For currents below 500A, the 100X range is recommended for optimal performance.
•  3、After sufficient warm-up of the probe (approximately 2 minutes, 10 minutes recommended), adjust the zero point using the OFFSET wheel before testing.
• 4、Open the clamp, secure the conductor under test and close the clamp to perform measurement.

Note that the maximum diameter of the measured conductor shall not exceed 20mm.

If the measured conductor is thin, try to position it at the center of the clamp to achieve the highest measurement accuracy.

 Warranty

This probe carries a 1year factory warranty from the date of manufacture. Free repair is provided for nonhumaninduced damage and unopened units.

Troubleshooting

1. Range indicator does not light up

Check adapteroscilloscope matching, power adapter, and TypeC cable.

2. Auto attenuation ratio incorrect

Oscilloscope autodetection mismatch may occur. Remove the metal ring pin and set attenuation manually.

3. Incorrect measurement value

Ensure oscilloscope is set to 1MΩ impedance and DC coupling. 50Ω impedance will cause large errors.

7. Package List