ZOYI ZT-703S 3-in-1 Digital Multimeter, Oscilloscope, and Signal Generator

1. Introducció

The ZOYI ZT-703S is an advanced 3-in-1 digital instrument that integrates the functionalities of a digital oscilloscope, a high-precision multimeter, and a signal generator into a single, compact device. Designed for professionals and enthusiasts in electrical and electronics fields, it offers a 3.5-inch color display for clear readings and intuitive operation. This manual provides detailed instructions for safe and effective use of your ZT-703S.

2. Informació de seguretat

Si us plau, llegiu i comprengui totes les instruccions de seguretat abans de fer servir el dispositiu. Si no segueix aquestes instruccions, es poden produir descàrregues elèctriques, incendis o danys al dispositiu.

• Assegureu-vos sempre que el dispositiu estigui en bon estat de funcionament abans d'utilitzar-lo.
• No supereu les classificacions màximes d'entrada per a volumtage, current, or resistance as specified in the technical specifications.
• Use only the provided test leads and accessories. Ensure they are not damaged.
• Eviteu utilitzar el dispositiu en mullat o damp ambients.
• The device features intelligent anti-burning protection and double ceramic fuses. However, always exercise caution to prevent misuse.
• Refer to the back panel of the device for fuse ratings and replacement instructions.

3. Contingut del paquet

Please check the contents of your package against the list below. If any items are missing or damaged, contact your retailer.

Configuració estàndard:

• 1 x ZOYI ZT-703S 3-in-1 Oscilloscope Multimeter
• 1 x Test Probe with Accessory Set
• 1 x Pair of Multimeter Test Leads
• 1 x Cable USB (per a càrrega i transferència de dades)
• 1 x bossa d'emmagatzematge

High Configuration:

• 1 x ZOYI ZT-703S 3-in-1 Oscilloscope Multimeter
• 2 x Test Probes with Accessory Sets
• 1 x Pair of Multimeter Test Leads
• 1 x Cable USB (per a càrrega i transferència de dades)
• 1 x bossa d'emmagatzematge

4. Producte acabatview

Familiarize yourself with the components and controls of your ZT-703S device.

Panell frontal:

• Visualització: 3.5-inch HD color screen.
• F1-F4 Buttons: Context-sensitive function keys.
• Botó REL: Long press to switch off/short press to measure relative value.
• AUTO RANGE Button: Automatic waveform recognition.
• HOLD SAVE Button: Long press to save data/short press to hold data.
• Botó MODE: Switching modes at the touch of a button.
• Botó MENÚ: Tecla de menú.
• Tecles de navegació: Adjustment keys for settings.
• Entrada de corrent de 10 A: For high current measurements.
• mA Current Input: Per mil·liampmesures actuals.
• COM: Common ground input.
• VΩHz-+: Entrada per al voltage, resistance, capacitance, on-off, diode, frequency, and other functions.

Top and Back Panel:

• Dual Channel Oscilloscope Probe Interface: Situat a la part superior del dispositiu.
• Port USB: Multiple signal type-C interface for data transmission and fast charging.
• Compartiment de la bateria: Houses the 18650 battery.
• Compartiment de fusibles: Contains the protective fuses.

5. Configuració inicial

5.1 Instal·lació i càrrega de la bateria

The ZT-703S comes with a built-in 3400mAh 18650 battery. To install or replace the battery, open the battery compartment on the back of the device. Ensure the battery is inserted with the correct polarity. Charge the device using the provided USB Type-C cable connected to a suitable USB power source.

5.2 Connecting Test Leads/Probes

For multimeter functions, connect the red test lead to the VΩHz-+ terminal and the black test lead to the COM terminal. For current measurements, connect the red lead to the 10A or mA terminal as appropriate. For oscilloscope functions, connect the oscilloscope probes to the dual channel oscilloscope probe interfaces at the top of the device.

6. Instruccions de funcionament

6.1 Encès/Apagat

Press and hold the power button (usually the red button labeled 'REC') to turn the device on or off.

6.2 Mode multímetre

To enter multimeter mode, press the 'MODE' button until the multimeter interface is displayed. Use the navigation keys and function buttons (F1-F4) to select specific measurement types:

• DC Voltage (DCV): Mesura el volum de corrent continutage.
• Vol. ACtage (ACV): Mesura el volum de corrent alterntage.
• DC Current (DCA): Mesurar el corrent continu.
• AC Current (ACA): Mesurar el corrent altern.
• Resistència: Mesurar la resistència elèctrica.
• Capacitat: Mesura la capacitat.
• Freqüència: Measure signal frequency.
• Prova de díode: Test diodes.
• Buzzer (Continuity): Prova de continuïtat del circuit.

The device supports True RMS measurement for accurate AC readings. Use the 'AUTO RANGE' button for automatic range selection or manually adjust as needed. Press 'HOLD SAVE' to freeze the current reading.

6.3 Mode d'oscil·loscopi

Press the 'MODE' button to switch to oscilloscope mode. The ZT-703S features a dual-channel input with a 50MHz bandwidth and a real-time sampling rate of up to 280MS/s.

• Dual Channel Input: Allows for simultaneous display and comparison of two waveforms.
• Modes d'activació: Select from Auto, Normal, or Single trigger modes to stabilize waveforms.
• Mesura automàtica: The device can automatically measure Period, Frequency, Peak-to-peak, Max, Min, RMS, Duty Cycle, and Number of Pulses.
• Modes de visualització: Choose between YT (Voltage vs. Time), XY (Lissajous figures), and Rolling display modes.
• Afterglow Mode: Adjust the afterglow setting (Minimum, 500ms, 1s, 10s, Unlimited) to observe signal changes over time.
• Overclocking Mode: Enhance measurement efficiency for specific applications.

6.4 Mode generador de senyals

The ZT-703S includes a built-in signal generator. Press the 'MODE' button to navigate to the signal generator interface. You can generate various waveforms:

• Ona sinusoïdal
• Ona quadrada
• Sawtoothwave
• Halfwave
• Fullwave

Adjust parameters like VPP (Peak-to-Peak Voltage) and Frequency using the navigation keys. The device features automatic waveform measurement and recognition.

6.5 Waveform and Screenshot Saving

Long press the 'HOLD SAVE' button for 2 seconds to take a screenshot of the current display. This allows for secondary analysis of the saved waveform data. You can connect the device to a PC via the USB cable to access and transfer stored waveforms and screenshots.

7. Manteniment

7.1 Neteja

Netegeu el dispositiu amb un suau, damp cloth. Do not use abrasive cleaners or solvents. Ensure the device is powered off and disconnected from any power source before cleaning.

7.2 Canvi de fusibles

The ZT-703S is equipped with double ceramic fuses for protection. If the device fails to function correctly, especially for current measurements, the fuses may need replacement. Refer to the back panel of the device for the correct fuse ratings (Amp/Volt) and instructions on how to access the fuse compartment. Always replace fuses with ones of identical type and rating.

7.3 Cura de la bateria

To prolong battery life, charge the device regularly and avoid fully discharging it. If storing the device for an extended period, ensure the battery is partially charged (around 50%) and store it in a cool, dry place.

8. Solució De Problemes

• El dispositiu no s'encén: Check if the battery is charged. Connect the device to a charger and try again.
• No reading or "OL" displayed in multimeter mode: Ensure test leads are correctly connected to the appropriate terminals and making good contact with the circuit. Check if the selected range is suitable for the measurement. For current measurements, check the fuses.
• Unstable waveform in oscilloscope mode: Adjust the trigger settings (level, mode) to stabilize the waveform. Check probe connections and compensation.
• La pantalla està en blanc o congelada: Prova de reiniciar el dispositiu. Si el problema persisteix, contacta amb l'atenció al client.

9. Especificacions

Especificacions generals:

• Número de model: ZT-703S
• Material: ABS+TPE
• Visualització: 3.5-inch color display, 25000 counts
• Resolució de pantalla: 320*240
• Bateria: 1 x built-in 3400mAh 18650 battery
• Sampling Rate (Multimeter): 3 vegades / segon
• Idioma: Xinès/Anglès
• RMS veritable: Sí
• Il·luminació de fons: Sí
• Prova de díode: Sí
• Buzzer (Continuity): Sí
• Indicador de bateria baixa: Sí
• Conservació de dades: Sí
• Temperatura de funcionament: 0-40 ℃
• Mida de l'article: 177 * 89 * 40 mm / 6.97 * 3.50 * 1.57 polzades
• Pes: 380 g

Multimeter Technical Indications:

Oscilloscope Specifications:

• Ample de banda: 50 MHz
• SampTarifa de ling: 1.5Sa/S-280MSa/S
• Waveform Interpolation: (sinx)x
• Sweep Speed: 10ns/div-20s/div
• Time Base Accuracy: 20 ppm
• Durada del registre: Fins a 128 Kbyte
• Canals: 2
• Modes d'activació: Automàtic, Normal, Individual
• Mesura automàtica: Period, Frequency, Peak-to-peak, Max, Min, RMS, Duty Cycle, Number of Pulses
• Mode de funcionament: Normal mode 200MSa/s, High speed mode 280MSa/s
• Mode de visualització: YT, XY, Rolling
• Afterglow Mode: Minimum, 500ms, 1s, 10s, Unlimited

Signal Generator Specifications:

• Formes d'ona: Sinewave, Squarewave, Sawtoothwave, Halfwave, Fullwave

10. Consells d'usuari

• Maximize Oscilloscope Efficiency: Utilize the 'Overclocking Mode' for faster signal acquisition and the 'Afterglow Mode' to observe transient events or signal stability over time.
• Anàlisi de dades: Regularly use the 'Waveform Save' and 'Screenshot Save' functions. Transfer these files to your PC via USB for more in-depth analysis and record-keeping.
• Compensació de la sonda: For accurate oscilloscope measurements, ensure your probes are properly compensated. This usually involves connecting the probe to a square wave test point (if available on the device or another source) and adjusting the probe's compensation trimmer until the square wave corners are sharp and flat.

11. Garantia i Suport

This product comes with a 1-year guarantee from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper maintenance.

For technical support, warranty claims, or service inquiries, please contact your original retailer or the manufacturer's customer service department. Please have your purchase receipt and product model number (ZT-703S) ready when contacting support.