1. Einleitung
The SEEIRIR ET120MPro is a versatile 2-in-1 portable device combining a digital oscilloscope and a signal generator. Designed for electronic maintenance, DIY projects, and automotive diagnostics, it offers a 120MHz bandwidth, 500MS/s sampling rate, and a 3MHz signal source. This manual provides essential information for the safe and effective operation of your device.
2. Sicherheitshinweise
- Betreiben Sie das Gerät stets innerhalb der angegebenen Lautstärke.tage und Stromgrenzen.
- Das Gerät sollte weder Feuchtigkeit, extremen Temperaturen noch direkter Sonneneinstrahlung ausgesetzt werden.
- Do not attempt to disassemble or modify the device. Refer servicing to qualified personnel.
- Ensure proper grounding when connecting to circuits, especially high-voltage diejenigen.
- Use only the provided or recommended accessories and probes.
3. Produktüberschreitungview
The ET120MPro features a compact design with a clear display and intuitive controls. It integrates a digital oscilloscope for waveform analysis and a signal generator for outputting various test signals.
Abbildung 3.1: Vorderseite view of the ET120MPro device, showing the display and control buttons. The display illustrates an oscilloscope waveform and menus for Sine, Ramp, and Square signal generation with frequency settings.
3.1. Anzeigeelemente
- Wellenformanzeige: Shows the measured electrical signal.
- Messparameter: Displays values like VPP (Peak-to-Peak Voltage), Frequency (F), and other auto-measured data.
- Zeitbasis: Indicates the horizontal scale (e.g., 2uS per division).
- Vertikale Empfindlichkeit: Indicates the vertical scale (e.g., 500mV per division).
- Trigger Status: Shows trigger mode (e.g., Auto).
- Kupplung: Indicates AC or DC coupling.
- Sondendämpfung: Shows 1X or 10X setting.
3.2. Systemsteuerung
- SPEISEKARTE: Öffnet das Hauptmenü für die Einstellungen.
- F1/F2: Function buttons, context-sensitive.
- SPEICHERN: Saves the current waveform data.
- Wechselstrom Gleichstrom: Toggles between AC and DC coupling for the input signal.
- 1x/10x: Adjusts probe attenuation setting.
- 50 %: Sets the trigger level to 50% of the signal ampBreite.
- TRIG: Enters trigger settings menu.
- MODE/OK: Selects modes or confirms selections.
- RAND: Wählt die Auslöseflanke (steigend/fallend) aus.
- WAGEN: Enables auto-ranging for oscilloscope settings.
- STOPPEN: Stops waveform acquisition.
- Navigationspfeile (Hoch/Runter/Links/Rechts): Wird zur Menünavigation und Parametereinstellung verwendet.
4. Einrichtung
4.1. Ein-/Ausschalten
Press and hold the power button (usually located on the top or side) to turn the device on or off. Ensure the battery is sufficiently charged or connected to a power source.
4.2. Anschluss der Sonden
Connect the oscilloscope probe to the input BNC connector. Ensure the probe's ground clip is securely connected to the circuit's ground reference. For signal generation, connect the output cable to the designated signal output port.
4.3. Initial Calibration (if applicable)
Some probes may require compensation. Connect the probe to the calibration output (if available) and adjust the probe's compensation screw until a stable square wave is displayed.
5. Bedienung des Geräts
5.1. Oszilloskopmodus
The device typically defaults to oscilloscope mode upon startup. If not, navigate through the menu to select it.
- Automatische Messung: Drücken Sie die AUTO button for the device to automatically adjust vertical, horizontal, and trigger settings for a stable waveform display. This also provides automatic readings for frequency, voltage (VPP), and duty cycle.
- Adjusting Vertical Sensitivity (Volts/Div): Use the navigation arrows to adjust the vertical scale, changing the voltage represented by each vertical division on the grid.
- Adjusting Time Base (Sec/Div): Use the navigation arrows to adjust the horizontal scale, changing the time represented by each horizontal division.
- Triggereinstellungen: Drücken TRIG to access trigger options. Use RAND to select rising or falling edge triggering. Adjust the trigger level using navigation arrows to stabilize the waveform.
- AC/DC-Kopplung: Drücken Wechselstrom/Gleichstrom to switch between AC coupling (blocks DC component) and DC coupling (shows full signal including DC offset).
- Sondendämpfung: Stellen Sie sicher, dass 1X/10X setting on the device matches the physical attenuation setting on your probe.
- Wellenformen speichern: Drücken Sie die SPEICHERN button to store the current waveform data.
5.2. Signalgeneratormodus
The ET120MPro can generate various waveforms for testing circuits. Access this mode via the main menu or a dedicated function button (if available).
- Auswahl des Wellenformtyps: Use navigation buttons to choose between Sine, Ramp, and Square waveforms as shown in the product overview Bild.
- Einstellfrequenz: Adjust the output frequency using the navigation arrows. The device supports frequencies up to 3MHz.
- Einstellung Amplitude (VPP): Adjust the peak-to-peak voltage of the output signal.
5.3. Datenverwaltung
The device supports USB storage for exporting waveform data. Connect the device to a computer using a USB cable to transfer saved files zur weiteren Analyse.
6. Wartung
- Reinigung: Reinigen Sie das Gerät mit einem weichen, trockenen Tuch. Verwenden Sie keine Scheuer- oder Lösungsmittel.
- Batteriepflege: Um eine optimale Akkulaufzeit zu gewährleisten, sollte der Akku nicht häufig vollständig entladen werden. Bewahren Sie das Gerät mit einer Teilladung auf, wenn es längere Zeit nicht benutzt wird.
- Lagerung: Bewahren Sie das Gerät an einem kühlen, trockenen Ort fern von direkter Sonneneinstrahlung und extremen Temperaturen auf.
7. Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| No display/Device won't power on | Niedriger Batteriestand; Ein-/Ausschalter nicht richtig gedrückt | Laden Sie den Akku auf; Halten Sie den Ein-/Ausschalter fest gedrückt. |
| Instabile Wellenform | Incorrect trigger settings; Probe compensation issue; Signal too noisy | Adjust trigger level/mode; Perform probe compensation; Use AUTO function; Check probe connections. |
| Kein Signal angezeigt | Probe not connected; Incorrect vertical sensitivity; AC coupling blocking DC signal | Ensure probe is connected to circuit; Adjust Volts/Div; Switch to DC coupling. |
| Signal generator output incorrect | Falsche Frequenz/amplitude settings; Output cable issue | Verify settings in signal generator mode; Check output cable connection. |
8. Spezifikationen
- Bandbreite: 120 MHz
- Sampling-Rate: 500 MS/s
- Digitale Kanäle: 1
- Bildschirmauflösung: 320*240 Pixel
- Signal Source Frequency: Bis zu 3 MHz
- Artikelgewicht: 400 g
- Abmessungen: Ungefähr 1 x 1 x 1 cm (Paketabmessungen)
- Hersteller: SEEIRIR
- Modellnummer: ET120MPro
9. Garantie und Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact SEEIRIR customer service. Keep your proof of purchase for warranty claims.