1. Product Overview
The TOOLTOP ET829 (and its white variant, ET202D) is a highly integrated 3-in-1 device combining a digital storage oscilloscope (DSO), a True RMS multimeter (DMM), and a signal generator. This compact and portable instrument is designed for a wide range of applications, including electronic circuit debugging, automotive maintenance, and power system repair.
Figure 1: TOOLTOP ET829 (Red) and ET202D (White) 3-in-1 Oscilloscope
Key Features:
- Digital Storage Oscilloscope (DSO): 80MHz bandwidth, 250MSa/s real-time sampling rate, 2 channels.
- True RMS Multimeter (DMM): 6000 counts, capable of measuring AC/DC voltage, AC/DC current, resistance, capacitance, frequency, diode test, and on-off test.
- Signal Generator: Outputs sine, square, and triangular waveforms with adjustable frequency and amplitude (1Hz-5MHz for sine, 1Hz-500KHz for square/triangle).
- User-Friendly Interface: Intuitive operation steps, key function and measurement status display, one-key AUTO measurement for oscilloscope.
- Data Storage: Stores up to 200 DSO waveforms and 2000 groups of DMM values.
- Display: 2.8-inch TFT color screen with 320x240 resolution and adjustable LED backlight.
- Power: Built-in 2x 18650 lithium rechargeable batteries, supporting 15W fast charging for up to 10 hours of oscilloscope use or 20 hours of multimeter use.
- PC Software: Supports timing measurement, curve drawing, waveform analysis, and FFT transformation via USB communication.
- Innovative Waveform Preview: A small window displays a thumbnail of the overall waveform, with an indicator for the current main interface waveform position.
- Accurate Measurement: Utilizes Panel Calibration Technology, retaining all calibration data without potentiometer adjustment.
- Multifunctional Design: Features 3 Trigger Modes (Auto, Normal, Single), relative value, data hold, afterglow selection, self-calibration, and cursor functions.
2. Package Contents
Before starting, please verify that all items listed below are present in your package:
- 1 x TOOLTOP ET829 / ET202D Oscilloscope (Red or White)
- 1 x Dual Injection Test Lead
- 1 x Scope Probe
- 1 x Signal Output Clip Wire
- 1 x Type-C USB Cable
- 1 x User Manual (this document)
- 1 x Cloth Bag
Figure 2: Included accessories with the TOOLTOP ET829
3. Setup and Initial Use
3.1 Charging the Device
The device comes with two built-in 18650 lithium rechargeable batteries. Before first use, or when the battery indicator is low, charge the device using the provided Type-C USB cable and a 15W fast charger (not included). A full charge provides approximately 10 hours of oscilloscope use or 20 hours of multimeter use.
Figure 3: Type-C Fast Charging Interface and Charging Speed Chart
3.2 Powering On/Off
Press and hold the power button (red button with power symbol) located on the front panel to turn the device on or off.
3.3 Connecting Probes and Test Leads
Connect the appropriate probes or test leads to the input jacks on the bottom of the device based on the function you intend to use (Oscilloscope, Multimeter, or Signal Generator output). Ensure secure connections.
Figure 4: Connecting oscilloscope probes to the CH1 and CH2 inputs.
4. Operating Instructions
4.1 Oscilloscope Function
The ET829 features a dual-channel oscilloscope for observing and comparing waveform signals. Press the CH1 or CH2 buttons to operate the respective channels.
Figure 5: Dual channel oscillography, showing CH1 and CH2 waveforms.
4.1.1 One-Key Auto Measurement
Press the "AUTO" button for automatic measurement, waveform display, and zero correction. This simplifies initial setup for quick analysis.
Figure 6: The "AUTO" button for one-key oscilloscope operation.
4.1.2 Waveform Preview Window
The device includes an innovative waveform preview window, allowing you to see the overall waveform and navigate through it. This feature helps in identifying specific sections of interest within a longer captured waveform.
Figure 7: Waveform preview window (top right) showing the overall waveform and current display range.
4.1.3 Trigger Modes
The oscilloscope supports three trigger modes: Auto, Normal, and Single. These modes allow for accurate capture of waveforms based on specific conditions.
- Auto: Continuously captures waveforms without meeting specific trigger conditions.
- Normal: Captures waveforms only when trigger conditions are met.
- Single: Captures the first waveform signal that meets the trigger conditions and then stops.
Figure 8: Visual representation of Auto, Normal, and Single trigger modes.
4.1.4 Cursor Functions and AI Waveform Preview
The AI cursor can quickly lock the parameter value of a certain point on the waveform. The cursor value and waveform trend are displayed in real-time. This allows for precise measurement of voltage and time differences between points on the waveform.
Figure 9: Display showing cursor functions for voltage and time difference measurements.
4.2 Multimeter Function
The ET829 features a 6000-count True RMS multimeter for accurate electrical measurements. Use the appropriate input terminals (10A, mA, COM, VΩCap) and function buttons (F1-F4) to select the desired measurement mode.
Figure 10: Multimeter display with various measurement modes (AC/DC Voltage, Duty Cycle, AC/DC Current, Capacitance, Frequency, Resistance, Diode, On-Off Test).
4.2.1 Input Shift Prompt
The device provides clear prompts for connecting test leads to the correct input terminals based on the selected measurement function, helping to avoid operational errors.
- AC/DC Voltage, Percentage, Frequency, Resistance, Capacitance, Diode, On-Off Testing: Connect inputs 3 and 4.
- AC/DC Micro Current: Connect to inputs 2 and 3.
- AC/DC 10A Current: Connect to inputs 1 and 3.
Figure 11: Visual guide for connecting test leads based on measurement type.
4.2.2 Measurement Examples (Video Demonstration)
Watch the following video for demonstrations of various multimeter measurements, including resistance, diode, DC voltage, AC voltage, and capacitance.
Video 1: Demonstrates single and dual channel waveform display, position function, waveform preview, reverse waveform function, AI cursor, signal source outputs (sine, square, triangular waves), and various multimeter measurements (resistance, diode, DC voltage, AC voltage, capacitance).
4.3 Signal Generator Function
The built-in signal generator can produce sine, square, and triangular waveforms. Frequency and amplitude can be set independently. This function can work simultaneously with the oscilloscope function to form a test system.
Figure 12: Signal source interface showing sine, square, and triangular wave options. Press the "AWG" button to enter this interface.
4.3.1 Adjustable Output Parameters
You can adjust the frequency and amplitude of the generated waveforms using the F1-F4 function buttons. F1 selects waveform type (sine, square, triangle), F2 adjusts frequency, and F3 adjusts amplitude.
Figure 13: Interface for adjusting frequency and amplitude of generated waveforms.
4.4 Waveform and Data Storage
The device can store 2000 sets of multimeter data and 200 sets of waveform signals. Press the "SAVE" key to maintain data or waveforms. A storage file manager is available for organizing saved data.
Figure 14: Display showing waveform preview images and multimeter database for stored data.
4.5 PC Software and USB Communication
Connect the device to a computer via the Type-C USB cable to utilize the PC software. This software enables advanced functions such as timing measurement, curve drawing, waveform analysis, and FFT transformation.
Figure 15: Connecting the ET829 to a PC for data analysis and control.
5. Specifications
General Characteristics:
| Parameter | Value |
|---|---|
| Display Resolution | 320 (horizontal) * 240 (vertical) pixels |
| Display Size | 2.8 inches TFT color screen |
| Display Backlight Brightness | Adjustable |
| Power Supply | AC100V-240V, 50Hz/60Hz; DC15W quick charging |
| Battery | 18650 lithium battery 2000mAh x 2 (included) |
| Operating Environment | 0℃~40℃, <75%RH |
| Storage Conditions | -10℃~60℃, <90%RH |
| Dimensions (Item) | 100 * 210 * 40mm (3.94 * 8.27 * 1.57in) |
| Weight (Item) | 480g (1.06lb) |
Oscilloscope Parameters:
| Parameter | Value |
|---|---|
| Number of Channels | 2 (CH1, CH2) |
| Bandwidth | 80MHz (single channel), 50MHz (dual channel) |
| Real Time Sampling Rate | 250MSa/s (single channel), 125MSa/s (dual channel) |
| Record Length | 6K (single channel), 3K (dual channel) |
| Horizontal Scale Range | 5nS/div ~ 50S/div |
| Vertical Scale Range | 1X: 10mV/div-10V/div; 10X: 100mV/div-100V/div |
| Input Coupling | DC, AC, GND |
| Input Protection Voltage | 300Vpp |
| Trigger Type | Edges Trigger |
| Trigger Mode | Auto, Single, Normal |
| Voltage Parameter Measurement | peak-to-peak, RMS, average, peak, maximum, minimum |
| Spectral Analysis FFT | Yes |
| Storage Capacity | 2000 groups of data, 200 groups of waveform records |
| Math Operation | FFT |
| Waveform Zoom | Yes |
| AI Waveform Preview | Yes |
Multimeter Parameters:
| Measurement | Range | Accuracy |
|---|---|---|
| DC Voltage | 600.0mV-1000V | 0.75%rdg + 10dgt |
| AC Voltage (TRMS) | 600.0mV-750V (40Hz-1KHz) | 1.0%rdg + 10dgt |
| DC Current | 60.00mA/500.0mA, 6.000A/10.00A | 1.2%rdg + 10dgt |
| AC Current (TRMS) | 60.00mA/500.0mA, 6.000A/10.00A | 1.5%rdg + 10dgt |
| Resistance | 600.0Ω-60.00MΩ | 1.0%rdg + 5dgt |
| Capacitance | 10.00nF-1.000mF; 1.000mF-100.0mF | 2.0%rdg + 10dgt; 5.0%rdg + 10dgt |
| Frequency | 10.00Hz-10.00MHz | 1.0%rdg + 5dgt |
| Diode Test | Open circuit voltage ~3V, max test current ~2mA | — |
| On-off Test | ≤50Ω beep, ≥600Ω display OL | — |
Waveform Generator Parameters:
| Parameter | Value |
|---|---|
| Waveform Frequency (Sine) | 1Hz-5MHz |
| Waveform Frequency (Square) | 1Hz-500KHz |
| Waveform Frequency (Triangular) | 1Hz-500KHz |
| Amplitude (Fixed-point output) | Maximum 5Vpp (50Ω) - 0Vpp, 0.1Vpp, 0.2Vpp, 0.5Vpp, 1Vpp, 2Vpp, 3Vpp, 5Vpp |
| Frequency Resolution | 0.2Hz |
| Number of Channels | 1 |
| Output Impedance | 50Ω |
6. Maintenance and Care
- 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. If storing for extended periods, ensure the battery is partially charged (around 50%) to prolong its lifespan.
- Battery Care: Avoid fully discharging the battery frequently. Recharge promptly when the battery indicator is low.
- Probe Care: Handle probes and test leads carefully. Avoid bending or stressing the cables excessively. Clean probe tips as needed.
- Self-Calibration: The device features a self-calibration function. Refer to the on-screen menu for instructions on performing calibration if needed.
7. Troubleshooting
- Device does not power on:
- Ensure the battery is charged. Connect the Type-C USB cable and try powering on while charging.
- Check if the power button is pressed and held sufficiently.
- No waveform displayed on oscilloscope:
- Verify that the probes are correctly connected to the device and the circuit under test.
- Check the input coupling (DC, AC, GND) and ensure it matches your signal.
- Adjust the vertical scale (V/div) and horizontal scale (Time/div) to match the expected signal characteristics.
- Ensure the trigger settings (level, mode) are appropriate for capturing the waveform. Try "AUTO" mode for initial setup.
- Multimeter shows "OL" or incorrect readings:
- Ensure test leads are correctly inserted into the appropriate input terminals for the selected measurement.
- Check for continuity in the test leads.
- Verify the measurement range is suitable for the value being measured.
- For resistance, ensure the component is isolated from the circuit.
- Signal generator output is not as expected:
- Confirm the signal output clip wire is securely connected.
- Check the selected waveform type, frequency, and amplitude settings.
- Ensure the receiving device is correctly configured to accept the signal.
8. Warranty and Support
The TOOLTOP ET829/ET202D comes with a standard manufacturer's warranty. Please refer to your purchase documentation or contact your retailer for specific warranty terms and conditions. For technical support, troubleshooting assistance beyond this manual, or inquiries about replacement parts, please contact the seller or manufacturer directly.
You may also find additional resources and FAQs on the official TOOLTOP website or support forums.