Velleman HPS50 Handheld Personal Scope User Manual

1. Introduction

This manual provides comprehensive instructions for the safe and efficient operation of the Velleman HPS50 Handheld Personal Scope. The HPS50 is a powerful, compact oscilloscope designed for electronics enthusiasts, featuring USB connectivity, a large keyboard, and a bright LCD for ease of use. Please read this manual thoroughly before operating the device to ensure proper functionality and to prevent damage.

2. Product Overview

The Velleman HPS50 is a versatile handheld oscilloscope with key features designed for accurate signal analysis.

• 40MHz Sampling Rate: Enables capture of fast-changing signals.
• 12MHz Analog Bandwidth: Provides a wide frequency range for signal measurement.
• 0.1mV Sensitivity: Allows for detection of very small voltage variations.
• 5mV to 20V/div in 12 steps: Offers a broad vertical range for various signal amplitudes.
• 50ns to 1hour/div Time Base in 34 steps: Provides extensive horizontal scaling for observing signals over different time durations.

Figure 2.1: The Velleman HPS50 Handheld Personal Scope with its probe connected, showing a waveform on the display. This image illustrates the device's compact form factor and user interface.

Figure 2.2: Front view of the Velleman HPS50, highlighting the LCD screen and the arrangement of control buttons for navigation and function selection.

3. Setup

Before using the HPS50, ensure it is properly set up.

1. Charging the Battery: The HPS50 includes a Lithium Ion battery. Connect the device to a power source using the provided USB cable to charge the battery. Ensure the battery is fully charged for optimal portable operation.
2. Connecting the Probe: Carefully connect the oscilloscope probe to the input BNC connector on the HPS50. Ensure a secure connection.
3. Powering On: Press and hold the power button to turn on the device. The LCD screen should illuminate and display the startup sequence.
4. Initial Calibration (if necessary): Refer to the on-screen menu or specific instructions in the full manual for any initial probe compensation or self-calibration procedures.

4. Operating Instructions

This section outlines basic operating procedures for the Velleman HPS50.

4.1. Basic Measurement

1. Connect to Circuit: Attach the probe's tip to the test point in your circuit and the ground clip to the circuit's ground reference.
2. Adjust Vertical Scale (Volts/Div): Use the appropriate buttons (e.g., "V/div" or arrow keys) to adjust the vertical sensitivity. This controls the voltage represented by each vertical division on the screen. Select a setting that allows the waveform to fill most of the screen without clipping.
3. Adjust Horizontal Scale (Time/Div): Use the time base controls (e.g., "Time/div" or arrow keys) to adjust the horizontal sweep speed. This controls the time represented by each horizontal division. Adjust until several cycles of the waveform are visible.
4. Trigger Setup: The trigger function stabilizes the waveform on the screen.
   • Press the "Trigger" button to access trigger settings.
   • Select the trigger source (e.g., Channel 1).
   • Adjust the trigger level to a point on the waveform that ensures stable capture.
   • Choose the trigger slope (rising edge or falling edge) depending on your signal.
5. Auto-Setup Function: The "Auto" button can automatically adjust vertical, horizontal, and trigger settings for a stable display of most common signals. This is useful for quick signal acquisition.

4.2. Advanced Functions

• Measurement Cursors: Use the cursor functions to precisely measure voltage differences (ΔV) and time differences (ΔT) between points on the waveform.
• Waveform Storage: The HPS50 may offer internal memory for saving waveforms. Consult the device's on-screen menu or full manual for instructions on saving and recalling waveforms.
• USB Connectivity: Connect the HPS50 to a computer via USB for data transfer, firmware updates, or remote control using compatible software.

5. Maintenance

Proper maintenance ensures the longevity and accuracy of your Velleman HPS50.

• Cleaning:

  Wipe the device's exterior with a soft, dry cloth. For stubborn dirt, a slightly damp cloth with mild detergent can be used, but ensure no liquid enters the device. Do not use abrasive cleaners or solvents.

• Storage:

  Store the HPS50 in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. Disconnect all probes and cables before storage. If storing for extended periods, ensure the battery is partially charged (around 50%) to preserve its lifespan.

• Battery Care:

  Avoid fully discharging the Lithium Ion battery frequently. Recharge the battery when the low battery indicator appears. If the device will not be used for a long time, charge it periodically to prevent deep discharge.
• Probe Care:

  Handle probes carefully. Avoid bending or kinking the cables. Store probes properly to prevent damage to the tips and connectors.

6. Troubleshooting

This section provides solutions to common issues you might encounter with the HPS50.

7. Specifications

Detailed technical specifications for the Velleman HPS50.

• Model Number: HPS50
• Sampling Rate: 40MHz
• Analog Bandwidth: 12MHz
• Sensitivity: 0.1mV
• Vertical Range: 5mV to 20V/div (in 12 steps)
• Time Base: 50ns to 1hour/div (in 34 steps)
• Battery: 1 Lithium Ion battery (included)
• Product Dimensions: 0.98 x 4.76 x 7.87 inches
• Item Weight: 4.41 ounces
• Manufacturer: Velleman, Inc
• First Available: February 17, 2011

8. Warranty and Support

For warranty information and technical support, please contact Velleman, Inc. directly. Keep your purchase receipt as proof of purchase for any warranty claims.

Manufacturer: Velleman, Inc

For further assistance, refer to the official Velleman website or contact their customer support department.