1. Úvod
The TOOLTOP ET852C is a highly versatile and portable 3-in-1 handheld instrument designed for a wide range of electrical and electronic testing applications. It integrates the functionalities of a 50MHz dual-channel digital oscilloscope, a 25000-count true RMS multimeter, and a multi-waveform signal generator into a single compact device. Featuring a clear 3.2-inch color LCD display and intelligent measurement capabilities, the ET852C offers both precision and ease of use for professionals and hobbyists alike. Its robust design includes overload protection and a built-in dual fuse for enhanced safety during operation.
2. Obsah balení
Po obdržení balíku pečlivě zkontrolujte, zda jsou všechny položky přítomny a nepoškozené:
- 1 x TOOLTOP ET852C Host Device
- 2 x Passive Oscilloscope Probes
- 1 x Test Leads (for Multimeter)
- 1 x Krokodýlí klip
- 1 x USB kabel (typu C)
- 1 x úložný sáček
- 1 x anglická uživatelská příručka
- 1 x Attachment (likely probe adjustment tool)
3. Zařízení skončiloview
Familiarize yourself with the layout and functions of the ET852C's panel and connectors:
- Obrazovka displeje
- Multi-functional buttons (F1, F2, F3, F4)
- Automatic setting/range switching (AUTO RANGE button)
- Stop/Run or Output/Close or Relative Value (Play/Pause button)
- Vypínač
- Menu/directional keys (Up, Down, Left, Right, MENU)
- Signal generator output connector (GEN Out)
- CH1, CH2 interfaces (Oscilloscope input terminals)
- Probe compensation (3V/1kHz square wave signal output)
- Charging/USB (USB Type-C interface)
- Save Settings/Data Preservation (SAVE HOLD button)
- Switch button (MODE button)
- Return button (Back arrow button)
- Input terminal of multimeter (A, mA, COM, VΩHz)
Rozměry: 181 mm (výška) x 89 mm (šířka) x 40 mm (hloubka)
4. Počáteční nastavení a nabíjení
4.1 Nabíjení zařízení
The ET852C is powered by a built-in 3.7V 2200mAh rechargeable lithium battery. Before first use, or when the battery indicator shows low power, connect the device to a power source using the provided USB Type-C cable (10 in Figure 4). The charging indicator will show the charging status.
4.2 Připojení sond
- For Oscilloscope: Connect the passive oscilloscope probes to the CH1 and/or CH2 input terminals (8 in Figure 4). Ensure a secure connection.
- For Multimeter: Connect the test leads to the appropriate input terminals (14 in Figure 4) based on the measurement type (e.g., COM and VΩHz for voltage/resistance, A or mA for current).
- For Signal Generator: Connect the crocodile clip line or other appropriate cable to the GEN Out connector (7 in Figure 4) to output waveforms.
5. Provozní režimy
The ET852C offers three primary operating modes: Oscilloscope, Multimeter, and Signal Generator. Use the MODE button (12 in Figure 4) to switch between these functions.
5.1 Režim osciloskopu
In Oscilloscope mode, the device displays real-time waveforms, allowing for detailed analysis of electrical signals.
- Automatické nastavení: Press the AUTO RANGE button (3 in Figure 4) for one-click automatic adjustment. The oscilloscope will automatically measure the amplitude and frequency of the waveform, and adjust the horizontal and vertical gears to display the waveform in the middle of the screen.
- Režimy spouštění: The device supports Automatic, Normal, and Single-time trigger modes. Use the menu/directional keys to select the desired trigger mode and edge (rising or falling).
- Afterglow Mode: This feature allows for better capture of signals by displaying waveform persistence, making it easier to observe abnormal or intermittent waveforms. Options include Minimum, 500ms, 1S, 10S, and Unlimited.
5.2 Režim multimetru
The multimeter function provides precise measurements of various electrical parameters with a 4.5-digit, 25000-count true RMS display.
- Rozměry: Supports DC/AC voltage, DC/AC current, resistance, capacitance, frequency, on-off test, and diode testing.
- Automatický rozsah: The device features an automatic ranging function for convenience.
- Uchovávání dat: Use the SAVE HOLD button (11 in Figure 4) to retain data on the screen.
5.3 Režim generátoru signálu
The built-in signal generator can output multiple waveform types with adjustable frequency and amplituda.
- Typy průběhů: Generate Sine wave, Square wave, Triangular wave, Half wave, Full wave, and Sawtooth wave.
- Frekvence a AmpNastavení výšky: Use the menu/directional keys and multi-functional buttons (F1-F4) to adjust the frequency and amplitude (VPP) of the output signal.
6. Správa dat
The ET852C allows for waveform saving and viewing. You can save waveform screenshots directly on the device. For further analysis or documentation, the instrument can be connected to a computer via its USB Type-C interface (10 in Figure 4) for data export.
7. Specifikace
7.1 Všeobecné specifikace
| Charakteristický | Popis |
|---|---|
| Typ zobrazení | 3.2palcový barevný LCD displej |
| Rezoluce | 320*240 pixelů |
| Napájení | 3.7V 2200mAh dobíjecí lithiová baterie |
| Pracovní prostředí | 0°C~40°C |
| Relativní vlhkost | <80 % |
| Velikost produktu | 181 * 89 * 40 mm |
| Hmotnost produktu | Asi 380 g (bez baterie) |
| Baterie je součástí dodávky | Ano |
7.2 Parametry osciloskopu
| Charakteristický | Popis |
|---|---|
| Šířka pásma | 50MHz (Dual channel) |
| Sampsazba ling | 200MSa/s (Real-time sampmník) |
| Počet kanálů | 2CH |
| Vstupní spojka | AC, DC |
| Vstupní impedance | 1MΩ@16pf |
| Útlum sondy | x1, x10, x100 |
| Max vstupní objtage | x1: 150V, x10: 300V (DC+AC peak) |
| Samprozsah rychlosti lingu | 1.5MSa / s |
| Interpolace průběhu | (Sinx)x |
| Scanning speed range | 10ns/dílek - 20s/dílek |
| Přesnost časové základny | 20 ppm |
| Délka záznamu | Až 128 kB |
| Citlivost | 20 mV/dílek - 10 V/dílek |
| Rozsah výtlaku | 4 mřížky (kladná a záporná) |
| Analogová šířka pásma | 50 MHz |
| Low-frequency response | Vyšší než 10 Hz |
| Čas vzestupu | Méně než 10 ns |
| Přesnost zisku DC | ±3 % |
| Automatic Measure | Cycle, frequency, peak to peak value, maximum value, minimum value, root mean square, duty cycle, average value (8 types) |
| Režim spouštění | Automaticky, normálně, jednorázově |
| Spouštěcí hrana | Náběžná hrana, sestupná hrana |
| Výstup generátoru signálu | Sine wave, square wave, triangular wave, half wave, full wave, sawtooth wave |
| Režim dosvit | Minimum, 500 ms, 1S, 10S, neomezeně |
Output of Probe Compensator
| Charakteristický | Popis |
|---|---|
| Výstupní objemtage (typické) | 3Vpp, high impedance |
| Frekvence (typická) | Square wave 1kHz (± 1%) |
7.3 Parametry multimetru
| Funkce | Rozsah | Přesnost |
|---|---|---|
| Digitální displej | 25000 readings / Capacitance (9999 readings) | |
| DC svtage (mV) | 25.000 mV / 250.00 mV | ± (0.05 % + 5) |
| DC svtage (V) | 2.5000V / 25.000V / 250.00V / 1000.0V | ± (0.1 % + 10) |
| DC current (mA/A) | 25.000 mA / 250.00 mA / 2.5000A / 10.000A | ± (0.5 % + 10) |
| AC svtage (mV) | 25.000 mV / 250.00 mV | ± (0.5 % + 8) |
| AC svtage (V) | 2.5000V / 25.000V / 250.00V / 750.0V | ± (0.5 % + 10) |
| AC current (mA/A) | 25.000 mA / 250.00 mA / 2.5000A / 10.000A | ± (0.8 % + 10) |
| Odpor | 250.00Ω ~ 250.0MΩ | ± (1.0 % + 10) |
| Kapacita | 9.999nF ~ 99.99mF | ± (2.0 % + 10) |
| Frekvence | 99.99Hz ~ 999.9kHz | ± (0.1 % + 2) |
| Test zapnutí/vypnutí | The buzzer sounds for a long time | |
| Diode tube | Otevřený obvod objtage je asi 3.2V | |
7.4 Parametry generátoru signálu
| Funkce | Frekvence | Amplitude (50 Ω) |
|---|---|---|
| Sinusová vlna | 1 Hz ~ 5 MHz | 0.3Vpp~3Vpp (1Hz~5MHz) |
| Čtvercová vlna | 1 Hz ~ 2 MHz | 0.3Vpp~3.99999MHz (1Hz~5MHz) |
| Trojúhelníková vlna | 1 Hz ~ 2 MHz | 0.3Vpp~2.8Vpp (1Hz~2MHz) |
| Poloviční vlna | 1 Hz ~ 2 MHz | 1 Hz ~ 2 MHz |
| Plná vlna | 1 Hz ~ 2 MHz | 1 Hz ~ 2 MHz |
| Pilová vlna | 1Hz~500kHz | 1Hz~500kHz |
- Samprychlost lingu: 200MSa / s
- DC offset range: 0
- Frekvenční rozlišení: 1 Hz
- Thoroughfare: 1
- Waveform length: 256Byte
- Vertikální rozlišení: 8bit
- Výstupní impedance: 50Ω
8. Bezpečnostní informace
The TOOLTOP ET852C is designed with user safety in mind, incorporating several protective features:
- Anti-Burn & Overload Protection: The device is equipped with intelligent anti-burning technology and overload protection to prevent damage from incorrect connections or excessive inputs.
- Built-in Dual Fuse: For enhanced safety, the ET852C includes a built-in dual fuse system. The fuses are rated as follows:
- Ceramics: 10A/250V
- Glass: 600mA/250V
Always ensure proper connection and operation within specified limits to prevent injury or damage to the device.
9. Údržba
- Čištění: K čištění zařízení používejte měkký, suchý hadřík. Nepoužívejte abrazivní čisticí prostředky ani rozpouštědla.
- Skladování: Přístroj skladujte na chladném a suchém místě, mimo dosah přímého slunečního záření a extrémních teplot.
- Péče o baterie: Chcete-li prodloužit životnost baterie, vyvarujte se častého úplného vybíjení. Zařízení pravidelně nabíjejte, i když jej delší dobu nepoužíváte.
- Péče o sondu: Handle probes carefully. Avoid bending or stressing the cables excessively. Store them properly to prevent damage.
10. Uživatelské tipy
- Auto-Range for Quick Setup: When starting a new measurement, especially with unknown signals, utilize the 'AUTO RANGE' function in oscilloscope mode for a quick and optimal display.
- Afterglow Mode for Intermittent Signals: If you are trying to capture transient or intermittent events, enable the 'Afterglow Mode' with a longer duration (e.g., 1S or Unlimited) to observe signal history.
- Kompenzace sondy: Regularly check and adjust probe compensation (using the dedicated output, 9 in Figure 4) to ensure accurate oscilloscope measurements.
- USB-C for Data Logging: For long-term monitoring or detailed analysis, connect the device to a computer via the USB Type-C port to export and log waveform data.
11. Řešení problémů
- Zařízení se nezapne: Ensure the battery is charged. Connect the USB-C cable to a power source and allow it to charge for some time. Check the power switch (5 in Figure 4).
- V režimu osciloskopu se nezobrazuje žádný průběh: Check probe connections to CH1/CH2. Ensure the signal source is active. Try using the 'AUTO RANGE' function. Verify trigger settings are appropriate for the signal.
- Nesprávné hodnoty v režimu multimetru: Ensure test leads are connected to the correct input terminals (A, mA, VΩHz, COM) for the desired measurement. Check the selected measurement function.
- Generátor signálu negeneruje výstup: Verify the output cable is connected to GEN Out (7 in Figure 4). Ensure the signal generator is enabled and configured with desired waveform, frequency, and amplituda.
- Obrazovka je zamrzlá: Try pressing the 'SAVE HOLD' button (11 in Figure 4) to see if it's in data hold mode. If not, power cycle the device.
12. Záruka a podpora
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the TOOLTOP Official Store directly. Keep your proof of purchase for warranty claims.