kuman P4100 Universal 100:1 High Voltage Oscilloscope Probe User Manual

1. Introduction

This user manual provides comprehensive instructions for the safe and effective use of the kuman P4100 Universal 100:1 High Voltage Oscilloscope Probe. Designed for use with various oscilloscopes including Rigol, Atten, Owon, and Siglent, this probe allows for accurate measurement of high voltage signals up to 2000V (Vp-p) with a 100:1 attenuation ratio and a bandwidth of 100 MHz. Please read this manual thoroughly before operating the device.

2. Safety Information

WARNING: This probe is designed for high voltage measurements. Improper use can result in electric shock, injury, or damage to equipment. Always adhere to the following safety precautions:

• Ensure the oscilloscope and the probe are properly grounded before making any connections.
• Do not exceed the maximum input voltage of 2000V (Vp-p).
• Always connect the probe's ground lead to the circuit's ground before connecting the probe tip to the signal source.
• Disconnect the probe tip from the signal source before disconnecting the ground lead.
• Inspect the probe cable and connectors for any damage before each use. Do not use if damaged.
• Use only in dry conditions. Avoid exposure to moisture or extreme temperatures.
• Do not attempt to disassemble or modify the probe. Refer servicing to qualified personnel.

3. Package Contents

Verify that all items listed below are present in your package:

• 1 x kuman P4100 Oscilloscope Probe
• 1 x Ground Lead with Alligator Clip
• 1 x Hook Tip (removable)
• 1 x Adjustment Tool
• 4 x Color Rings (for identification)
• 1 x User Manual (this document)

Figure 3.1: Complete package contents of the kuman P4100 probe.

4. Product Overview and Features

The kuman P4100 is a passive high voltage probe designed for general purpose oscilloscope measurements. Its key features include:

• Universal 100:1 High Voltage Probe: Provides a 100:1 attenuation ratio, allowing oscilloscopes to safely measure higher voltages.
• Wide Compatibility: Usable with oscilloscopes from various manufacturers such as Rigol, Atten, Owon, and Siglent.
• High Bandwidth: Supports measurements up to 100 MHz, suitable for a wide range of signals.
• Robust Design: Constructed with durable ABS material for reliable performance.

Figure 4.1: Overview of the kuman P4100 High Voltage Probe.

5. Setup

5.1 Connecting the Probe to the Oscilloscope

1. Ensure your oscilloscope is powered off.
2. Connect the BNC connector of the P4100 probe to an input channel on your oscilloscope.
3. Attach the ground lead's alligator clip to the ground terminal of the oscilloscope.
4. Power on your oscilloscope.

5.2 Probe Compensation Adjustment

Proper probe compensation is crucial for accurate measurements. This adjusts the probe's capacitance to match the oscilloscope's input capacitance, ensuring a flat frequency response.

1. Connect the probe tip to the oscilloscope's probe compensation output (usually a square wave signal, often 1kHz, 5Vp-p).
2. Connect the probe's ground clip to the oscilloscope's ground terminal.
3. Observe the square wave on the oscilloscope screen.
4. Using the provided adjustment tool, carefully turn the trimmer screw on the probe body until the square wave corners are flat and sharp, without overshoot or undershoot.

Figure 5.1: Probe tip with retractable hook and BNC connector detail.

6. Operating Instructions

The P4100 probe has a 100:1 attenuation ratio. This means the voltage displayed on the oscilloscope screen will be 1/100th of the actual voltage at the probe tip. Remember to multiply the oscilloscope's reading by 100 to get the true voltage.

1. Ensure the probe is correctly connected and compensated as described in the Setup section.
2. Always connect the probe's ground clip to the circuit's ground point first.
3. Carefully touch the probe tip to the test point where you wish to measure the high voltage signal.
4. Observe the waveform on the oscilloscope screen. Adjust the oscilloscope's vertical scale (Volts/Div) and horizontal scale (Time/Div) as needed to get a clear display.
5. To calculate the actual voltage, multiply the voltage reading on the oscilloscope by 100. For example, if the oscilloscope reads 10V, the actual voltage is 10V * 100 = 1000V.
6. Always disconnect the probe tip from the test point before disconnecting the ground clip.

Figure 6.1: Detail of the probe's ground lead connection.

7. Maintenance

To ensure the longevity and accuracy of your kuman P4100 probe, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the probe body and cable. Do not use abrasive cleaners or solvents. Ensure the probe is disconnected from all power sources before cleaning.
• Storage: Store the probe in a clean, dry environment, away from direct sunlight and extreme temperatures. Keep it in its original packaging or a protective case to prevent damage to the tip and cable.
• Inspection: Regularly inspect the probe cable for cuts, kinks, or insulation damage. Check the connectors for corrosion or bending. If any damage is found, discontinue use and consider replacement.
• Recalibration: Periodically check the probe compensation, especially if you notice discrepancies in measurements or if the probe has been subjected to significant temperature changes.

8. Troubleshooting

If you encounter issues with your kuman P4100 probe, refer to the following common problems and solutions:

9. Specifications

10. Warranty and Support

For warranty information or technical support regarding your kuman P4100 Oscilloscope Probe, please contact kuman customer service through their official website or the retailer from whom you purchased the product. Please have your product model number (P4100) and purchase details ready when contacting support.

You can visit the kuman store for more information: kuman Official Store