SEEIRIR ET120MPro Portable Digital Oscilloscope and Signal Generator User Manual

1. Johdanto

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. Turvallisuustiedot

Always operate the device within its specified voltage ja virtarajat.
Vältä laitteen altistamista kosteudelle, äärimmäisille lämpötiloille tai suoralle auringonvalolle.
Älä yritä purkaa tai muokata laitetta. Jätä huolto pätevälle henkilöstölle.
Ensure proper grounding when connecting to circuits, especially high-voltage niitä.
Use only the provided or recommended accessories and probes.

3. Tuote ohiview

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.

SEEIRIR ET120MPro Portable Digital Oscilloscope and Signal Generator with display showing a sine wave and signal generation options.

Kuva 3.1: Etuosa 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. Näyttöelementit

Aaltomuotonäyttö: Shows the measured electrical signal.
Mittausparametrit: Displays values like VPP (Peak-to-Peak Voltage), Frequency (F), and other auto-measured data.
Aikapohja: Indicates the horizontal scale (e.g., 2uS per division).
Pystysuuntainen herkkyys: Indicates the vertical scale (e.g., 500mV per division).
Liipaisimen tila: Shows trigger mode (e.g., Auto).
Kytkentä: Indicates AC or DC coupling.
Anturin vaimennus: Shows 1X or 10X setting.

3.2. Ohjauspaneeli

VALIKKO: Avaa asetusten päävalikon.
F1/F2: Toimintopainikkeet, tilannekohtainen.
TALLENTAA: Saves the current waveform data.
AC/DC: 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 ampleveyttä.
TRIG: Enters trigger settings menu.
MODE/OK: Selects modes or confirms selections.
REUNA: Selects trigger edge (rising/falling).
AUTO: Enables auto-ranging for oscilloscope settings.
STOP: Stops waveform acquisition.
Navigointinuolet (ylös/alas/vasemmalle/oikealle): Käytetään valikoiden navigointiin ja parametrien säätämiseen.

4. Asennus

4.1. Virta päälle / pois

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. Antureiden kytkeminen

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. Laitteen käyttö

5.1. Oskilloskooppitila

The device typically defaults to oscilloscope mode upon startup. If not, navigate through the menu to select it.

Automaattinen mittaus: Paina 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.
Triggerin asetukset: Paina TRIG to access trigger options. Use REUNA to select rising or falling edge triggering. Adjust the trigger level using navigation arrows to stabilize the waveform.
AC/DC Coupling: Paina AC/DC to switch between AC coupling (blocks DC component) and DC coupling (shows full signal including DC offset).
Anturin vaimennus: Varmista, että 1X/10X setting on the device matches the physical attenuation setting on your probe.
Aaltomuotojen tallentaminen: Paina TALLENTAA -painiketta nykyisen aaltomuodon tietojen tallentamiseksi.

5.2. Signal Generator Mode

The ET120MPro can generate various waveforms for testing circuits. Access this mode via the main menu or a dedicated function button (if available).

Aaltomuodon tyypin valinta: Use navigation buttons to choose between Sine, Ramp, and Square waveforms as shown in the product overview kuva.
Taajuuden asettaminen: Adjust the output frequency using the navigation arrows. The device supports frequencies up to 3MHz.
Asetus Amplitude (VPP): Adjust the peak-to-peak voltage of the output signal.

5.3. Tietojen hallinta

The device supports USB storage for exporting waveform data. Connect the device to a computer using a USB cable to transfer saved files lisäanalyysiä varten.

6. Huolto

Puhdistus: Puhdista laite pehmeällä, kuivalla liinalla. Älä käytä hankaavia puhdistusaineita tai liuottimia.
Akun hoito: Akun optimaalisen käyttöiän varmistamiseksi vältä akun usein tapahtuvaa täydellistä purkamista. Säilytä laitetta osittain ladattuna, jos sitä ei käytetä pitkään aikaan.
Varastointi: Säilytä laitetta viileässä, kuivassa paikassa, poissa suorasta auringonvalosta ja äärimmäisistä lämpötiloista.

7. Vianmääritys

Ongelma	Mahdollinen syy	Ratkaisu
No display/Device won't power on	Akun varaus vähissä; Virtapainiketta ei painettu oikein	Lataa akku; Paina virtapainiketta tukevasti ja pidä sitä painettuna.
Epävakaa aaltomuoto	Incorrect trigger settings; Probe compensation issue; Signal too noisy	Adjust trigger level/mode; Perform probe compensation; Use AUTO function; Check probe connections.
Signaalia ei näy	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	Väärä taajuus/amplitude settings; Output cable issue	Verify settings in signal generator mode; Check output cable connection.

8. Tekniset tiedot

Kaistanleveys: 120 MHz
Sampling hinta: 500 MS/s
Digitaaliset kanavat: 1
Näytön resoluutio: 320*240 pikseliä
Signal Source Frequency: Jopa 3 MHz
Tuotteen paino: 400 g
Mitat: Approximately 1 x 1 x 1 cm (Parcel Dimensions)
Valmistaja: SEEIRIR
Mallinumero: ET120MPro

9. Takuu ja tuki

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.