FNIRSI DST-210 3-in-1 Handheld Oscilloscope Multimeter DDS Generator User Manual

Introduction

The FNIRSI DST-210 is a versatile 3-in-1 handheld device designed for electronic and automotive diagnostics. It integrates the functionalities of a digital oscilloscope, a true RMS (TRMS) multimeter, and a DDS signal generator into a compact, user-friendly unit. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your DST-210 device.

Figure 1: The FNIRSI DST-210 3-in-1 Handheld Oscilloscope Multimeter DDS Generator.

What's in the Box

Upon unpacking your FNIRSI DST-210, please verify that all the following components are included:

• DST-210 Oscilloscope Multimeter Unit
• P6100 Oscilloscope Probe
• Multimeter Test Leads
• Alligator Clip Probe
• USB Data Cable (Type-C)
• User Guide

Figure 2: Package contents of the FNIRSI DST-210.

Device Overview

The DST-210 combines three essential tools into one portable device. Familiarize yourself with the main components and their functions:

• Oscilloscope: Features a 10 MHz bandwidth and 48 MSa/s sampling rate for waveform analysis.
• Multimeter: A 19999-count TRMS digital multimeter for precise electrical measurements.
• DDS Signal Generator: Outputs 13 different waveforms up to 50 KHz for signal testing.

Figure 3: Overview of the DST-210's integrated functions.

Figure 4: Detailed view of the DST-210's controls and input ports.

Setup

Before using your FNIRSI DST-210, ensure it is properly set up and charged.

Charging the Device

• Connect the provided Type-C USB cable to the charging port on the side of the device.
• Connect the other end of the USB cable to a standard 5V/1A USB power adapter (not included) or a computer USB port.
• The battery indicator on the screen will show charging status. A full charge typically takes a few hours.

Connecting Probes

• Multimeter Probes: Insert the red test lead into the VΩHz+ input jack and the black test lead into the COM input jack for most multimeter functions. For current measurements, use the 10A or mA input jacks as appropriate.
• Oscilloscope Probe: Connect the P6100 probe to the Scope Channel Interface (BNC connector) at the top of the device. Ensure a secure connection.
• Alligator Clip Probe: This can be used with the signal generator output or as an alternative connection for multimeter functions when appropriate.

Operating Instructions

The DST-210 features a rotary dial for mode selection and buttons for fine-tuning settings. The 2.8-inch color TFT screen displays measurements and waveforms.

General Operation

• Power On/Off: Press and hold the Power button on the side of the device.
• Mode Selection: Rotate the central dial to switch between Oscilloscope, Multimeter, and Signal Generator modes.
• Navigation: Use the arrow buttons and the ENTER key to navigate menus and confirm selections within each mode.
• Data Hold/Waveform Freeze: Press the HOLD button to freeze the current display.
• Save/Export: Long press the RUN/SAVE button to store waveforms or data. The device supports waveform image save/export.

Figure 5: User interface and key features of the DST-210.

Oscilloscope Mode

The oscilloscope function allows for visual analysis of electrical signals.

• Select the oscilloscope mode using the rotary dial.
• Connect the P6100 probe to the circuit under test. Ensure proper grounding.
• Adjust vertical sensitivity (V/div) and horizontal time base (s/div) using the on-screen controls or dedicated buttons to capture the desired waveform.
• Utilize trigger settings (automatic, normal, single, rising/falling edge) to stabilize the waveform display.
• The device supports waveform image saving and export for further analysis.

Figure 6: Oscilloscope mode in use for signal analysis.

Multimeter Mode

The multimeter provides precise measurements for various electrical parameters.

• Select the multimeter mode using the rotary dial.
• Choose the desired measurement function (AC/DC voltage, current, resistance, capacitance, frequency, diode, temperature, continuity) by rotating the dial or pressing the MODE button.
• Connect the multimeter probes to the circuit or component according to the measurement type.
• The device features auto-ranging for convenience.
• Use the data hold function to temporarily freeze the displayed reading.
• The live/neutral detection feature helps identify live wires.

Figure 7: Multimeter mode displaying a voltage reading.

Figure 8: Examples of multiple measurements using the DST-210 multimeter.

DDS Signal Generator Mode

The DDS signal generator produces various waveforms for testing and simulation.

• Select the signal generator mode using the rotary dial.
• Choose from 13 available waveforms (e.g., sine, square, triangle, sawtooth, half-wave, full-wave, step wave).
• Adjust the frequency (up to 50 KHz) and amplitude (0.1 V–3.0 V) using the on-screen controls.
• Connect the output of the signal generator to the circuit or device you wish to test.

Figure 9: DDS signal generator displaying different waveform types.

Maintenance

Proper maintenance ensures the longevity and accuracy of your FNIRSI DST-210.

• Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
• Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
• Battery Care: To maintain battery health, avoid fully discharging the device frequently. If storing for extended periods, charge the battery to approximately 50% every few months.
• Probe Care: Inspect probes and test leads regularly for any signs of damage. Replace damaged accessories immediately to ensure safety and accurate measurements.

Troubleshooting

This section addresses common issues you might encounter with your DST-210.

• Device does not power on: Ensure the battery is charged. Connect the device to a power source using the Type-C cable and try again.
• Inaccurate Multimeter Readings: Check that the test leads are correctly inserted into the appropriate input jacks for the selected measurement type. Verify the probes are making good contact with the circuit.
• Oscilloscope Waveform Not Stable: Adjust the trigger settings (mode, level, edge) to stabilize the waveform. Ensure the probe attenuation setting on the device matches the physical probe setting (e.g., X1 or X10).
• Signal Generator Output Issues: Confirm the output frequency and amplitude settings are correct for your application. Check the connection of the alligator clip probe.
• Difficulty Exiting Oscilloscope Setup: If you encounter issues exiting the oscilloscope setup menu, try pressing the 'MODE' button or the 'RUN/SAVE' button. If the issue persists, a power cycle (turning off and on) may be necessary. Settings are typically retained.

Specifications

Oscilloscope Parameters

Table 1: Oscilloscope Parameters

Multimeter Parameters

Table 2: Multimeter Parameters

Signal Generator Parameters

Table 3: Signal Generator Parameters

Device Parameters

Table 4: Device Parameters

Official Product Videos

Warranty and Support

FNIRSI products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the official FNIRSI website or contact their customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.