1. Introduktion
The TOOLTOP ET120M is a versatile and portable digital oscilloscope designed for a wide range of applications, including home appliance testing, automobile diagnosis, scientific research, education, product development, and equipment debugging. It features a 120MHz analog bandwidth, 500MS/s sampling rate, and a 2.4-inch clear color screen. This manual provides detailed instructions for the safe and effective use of your ET120M oscilloscope.
2. Sikkerhedsoplysninger
Læs og forstå alle sikkerhedsinstruktioner, før du bruger enheden. Manglende overholdelse af disse instruktioner kan resultere i elektrisk stød, brand eller beskadigelse af enheden.
- Brug altid den korrekte voltage and current settings for your measurements.
- Brug ikke enheden i vådt eller damp forhold.
- Undgå at udsætte enheden for ekstreme temperaturer eller direkte sollys.
- Forsøg ikke at åbne eller ændre enheden. Overlad al service til kvalificeret personale.
- Ensure the probe is properly connected before making any measurements.
- Hold enheden væk fra stærke elektromagnetiske felter.
3. Pakkens indhold
Bekræft, at alle nedenstående varer er inkluderet i din pakke:
- 1 x TOOLTOP ET120M Digital Oscilloscope
- 1 x 100MHz Probe
- 1 x USB ladekabel
- 1 x Brugermanual (dette dokument)
- 1 x tøjpose
Image: Package contents including the oscilloscope, probe, charging cable, user manual, and a cloth bag.
4. Produktet er slutview
Familiarize yourself with the main components and controls of your ET120M oscilloscope.
Billede: Forside view of the TOOLTOP ET120M oscilloscope.
4.1 Nøglefunktioner
- Waveform Auto Adaptation Screen: One-key automatic waveform adjustment.
- Three Scanning Modes: Auto, Normal, Enkelt.
- 120MHz Waveform Bandwidth: High-performance signal analysis.
- Square Wave Signal Output: Built-in signal generator with multiple frequencies.
- 2500 Storage Waveforms: Thumbnail browsing for easy review.
- Kompakt og bærbar: Lightweight design with a silicone protective cover.
- Genopladeligt lithiumbatteri: Op til 6 timers kontinuerlig brug.
Billede: Overview of the ET120M's key advantages.
4.2 Enhedslayout
Billede: Detaljeret view of the ET120M's ports and features.
- 1: Signal Output Ring: For outputting square wave signals.
- 2: Probe Jack: Connect the oscilloscope probe here.
- 3: Rechargeable Battery Jack: Til opladning af det interne litiumbatteri.
- 4: Back Bracket: Supports the instrument for easy observation of data.
- 5: Switch: Tænd/sluk-knap.
- Silicone Sheath: Provides easy grip and protects the charging interface.
5. Opsætning
5.1 Opladning af enheden
The ET120M is equipped with a built-in rechargeable lithium battery. Before first use, or when the battery is low, connect the provided USB charging cable to the rechargeable battery jack (3) and a suitable USB power adapter (not included). The device can operate continuously for up to 6 hours on a full charge.
Image: The oscilloscope is powered by a rechargeable lithium battery.
5.2 Tænd/sluk
To power on the device, press the power switch (5) located on the side. To power off, press and hold the same switch. The device also features an auto-shutdown function after 15 minutes of no operation to conserve battery life.
6. Betjeningsvejledning
6.1 Waveform Auto Adaptation
The ET120M features a one-key waveform auto adaptation function. Simply press the AUTO button, and the oscilloscope will automatically adjust the waveform to fit the screen, optimizing the time base and vertical sensitivity for clear display.
Image: Waveform auto adaptation in action.
Video: Demonstration of the oscilloscope's features, including auto adaptation and menu navigation.
6.2 Scanningstilstande
The oscilloscope offers three scan modes to suit different measurement needs:
- Automatisk tilstand: Collects signals continuously, regardless of whether the trigger conditions are met or not.
- Normal tilstand: Collects and keeps the last waveform that meets the trigger condition.
- Enkelt tilstand: Collects and keeps the first waveform meeting the trigger condition.
Image: Explanation of Auto, Normal, and Single scan modes.
6.3 Justering af parametre
You can adjust various parameters to fine-tune your measurements:
- Trigger Edge: Tryk på KANT key to switch the trigger edge (rising/falling).
- Coupling Mode: Tryk på AC/DC key to switch between AC and DC coupling.
- Probe Magnification: Tryk på 1X/10X key to switch the probe magnification.
- Center Trigger Indication: Tryk på 50 % key to automatically center the trigger indication to the center of the waveform.
Image: Controls for setting time base, sensitivity, and trigger edge.
6.4 Målefunktioner
The ET120M supports 12 kinds of automatic parameter measurements:
- Vpp (Peak-to-Peak Voltage)
- Vrms (Root Mean Square Voltage)
- Vavg (Average Voltage)
- Vp (Peak Voltage)
- Vmax (Maximum Voltage)
- Vmin (Minimum Voltage)
- F (Frequency)
- T (Period)
- T+ (Positive Pulse Width)
- T- (Negative Pulse Width)
- Du+ (Positive Duty Cycle)
- Du- (Negative Duty Cycle)
To access and select displayed parameters:
- Trykke MENU.
- Navigate to "Voltage" or "Time" using the arrow keys.
- Trykke OK for at komme ind i undermenuen.
- Select the desired parameters (e.g., Vpp, Vrms, Freq, Period) and press OK for at bekræfte.
6.5 Waveform Saving and Browsing
The device can store up to 2500 DSO waveforms and allows for thumbnail browsing.
- Saving a Waveform: Tryk på SPARE key to save the current waveform.
- Browsing Saved Waveforms:
- Trykke MENU.
- Navigate to "Waveform" using the arrow keys.
- Trykke OK to enter the waveform manager and browse with thumbnails.
- Bruge F1 / F2 to page forward / backward.
- Trykke OK to enter the waveform information interface.
- Trykke OK again to show / hide specific parameters and grid.
- Deleting Waveforms:
- Tryk på AUTO key to delete the currently displayed waveform.
- Tryk på STOP key to delete all saved waveforms.
Image: Waveform saving and thumbnail browsing interface.
6.6 Square Wave Signal Output
The ET120M can output square wave signals at various frequencies for testing purposes.
- Tilgængelige frekvenser: 1kHz, 10KHz, 100KHz, 1MHz.
- Setting Output Frequency:
- Trykke MENU.
- Navigate to "Gen Out" using the arrow keys.
- Trykke OK for at komme ind i undermenuen.
- Select the desired output frequency (e.g., 1KHz, 10KHz) and press OK for at bekræfte.
Image: Setting the square wave signal output frequency.
6.7 Skærmindstillinger
You can adjust the display for optimal viewing:
- Lysstyrke:
- Trykke MENU.
- Navigate to "Light" using the arrow keys.
- Trykke OK for at komme ind i undermenuen.
- Select the desired brightness level (8 levels available) and press OK for at bekræfte.
- Gitter:
- Trykke MENU.
- Navigate to "Grid" using the arrow keys.
- Trykke OK for at komme ind i undermenuen.
- Set the grid function on/off and press OK for at bekræfte.
7. Vedligeholdelse
7.1 Rengøring
To clean the device, use a soft, dry cloth. Do not use abrasive cleaners or solvents, as these may damage the casing or screen. Ensure no liquids enter the device.
7.2 Opbevaring
When not in use, store the oscilloscope in a cool, dry place, away from direct sunlight and extreme temperatures. The recommended storage conditions are -10°C to +60°C with less than 90% relative humidity. The silicone protective cover helps protect the device during storage and transport.
8. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Enheden tænder ikke. | Lavt batteri eller strømafbryder slukket. | Charge the battery using the USB cable. Ensure the power switch is in the ON position. |
| Ingen bølgeform vises | Probe not connected, incorrect settings, or no signal input. | Kontrollér probeforbindelsen. Tryk på AUTO for auto adaptation. Verify signal source. Adjust vertical sensitivity and time base. |
| Waveform is unstable. | Incorrect trigger settings. | Adjust the trigger level and trigger edge. Try different scan modes (Auto, Normal, Single). |
| Skærmen er for lys/dæmpet. | Lysstyrkeindstillingen er forkert. | Adjust the brightness level via the MENU -> Light option. |
9. Specifikationer
Image: General characteristics and detailed specifications.
| Feature | Beskrivelse |
|---|---|
| Vise | 320x240 LCD screen |
| Visningsområde | 50 mm x 40 mm |
| Baggrundsbelysning | White, 8 levels of brightness adjustable |
| Impedans | 1X: 1MΩ / 10X: 10MΩ |
| Batteri | 18650 Lithium batteri |
| Automatisk nedlukning | Ingen operation i 15 minutter |
| Waveform Storage | 2500 DSO waveforms |
| Dimensioner | 124 mm x 80 mm x 35 mm |
| Driftsbetingelser | 0°C ~ +40°C; < 75%RH |
| Opbevaringsbetingelser | -10°C ~ +60°C; < 90%RH |
| Analog båndbredde | 120 MHz |
| Maks. realtids-Sampling Rate | 500MSps |
| Lodret opløsning | 8 bits |
| Lodret nøjagtighed | ±(5 % + 0.2 div) |
| Trigger niveau | ±3.8div (0.1div per step) |
| Udløserposition | ±6div (0.1div per step) |
| Cursor Function | △V, △t, 1/△t |
| Koblingsmetode | DC/AC |
| Tidsbaseområde | 6ns/div ~ 50s/div |
| Tidsbasenøjagtighed | ±(0.01 % + 0.1 div) |
| Scanningstilstande | Auto/Single/Normal |
| Trigger Slope | Rising / Falling |
| Rekordlængde | 12div |
| Automatisk konfiguration | Indstiller automatisk tidsbase og vertikal amplitude |
| Automatiske målefunktioner | Vpp, Vrms, Vavg, Vp, Vmax, Vmin, F, T, T+, T-, Du+, Du- |
| Vertikalt følsomhedsområde | 1X: 50mV/div ~ 10V/div; 10X: 500mV/div ~ 100V/div |
10. Brugertips
- Automotive Use: The ET120M is suitable for automotive diagnostic applications.
- Signalgenerator: Yes, this device includes a signal generator function for square waves at 1kHz, 10kHz, 100kHz, and 1MHz.
11. Garanti og support
For warranty information and technical support, please refer to the seller or the official TOOLTOP webwebsted. Gem din købskvittering som købsbevis i tilfælde af garantikrav.
