1. Įvadas
The ANENG SZ308 is a versatile digital multimeter designed for accurate and reliable electrical measurements. It is suitable for a wide range of applications, from household electrical checks to automotive diagnostics and industrial maintenance. This manual provides essential information for setting up, operating, and maintaining your device safely and efficiently.
1.1 Saugos informacija
WARNING: Always read and understand all safety warnings and operating instructions before using this instrument. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Neviršykite didžiausio tūriotage or current ratings specified for the multimeter.
- Ensure test leads are properly connected and in good condition before each use.
- Never use the multimeter on circuits with voltagviršija 1000 V DC arba 750 V AC.
- Always turn off power to the circuit and discharge high-voltagPrieš matuodami varžą, laidumą ar diodus, atjunkite kondensatorius.
- Kad užtikrintumėte tikslius rodmenis, pakeiskite bateriją, kai pasirodys išsikrovusio akumuliatoriaus indikatorius.
- Do not operate the multimeter if it appears damaged or if the case is open.
2. Produktas baigtasview
The ANENG SZ308 Digital Multimeter is a compact and lightweight device, making it highly portable for various tasks.

2.1 pav.: priekis view of the ANENG SZ308 Digital Multimeter.
2.1 Multimeter Components

Figure 2.2: Diagram illustrating the main panel functions of the ANENG SZ308.
- LCD ekranas: Displays measurement values, units, and function indicators.
- Funkcinis ratukas: Sukamasis jungiklis matavimo režimams pasirinkti (tūristage, Current, Resistance, Diode, Continuity, hFE, Square Wave).
- Įvesties lizdai: Ports for connecting test leads (VΩmA, COM, 10A).
- hFE Jack: Socket for transistor testing.
- Senkančios baterijos indikatorius: Icon on the LCD screen indicating low battery power.
- Duomenų sulaikymas: Button to freeze the current reading on the display.
- Foninis apšvietimas: Button to activate the display backlight for use in dim conditions.
2.2 Pakuotės turinys

Figure 2.3: The ANENG SZ308 Multimeter package includes the device, battery, test leads, and manual.
The ANENG SZ308 Digital Multimeter package typically includes:
- ANENG SZ308 Digital Multimeter x 1
- 9 V baterija x 1
- Standard Test Leads x 1 pair
- Insulated Multimeter Test Probes (Piercing Probes) x 2
- Vartotojo vadovas x 1
3. Sąranka
3.1 Akumuliatoriaus įdėjimas

Figure 3.1: Proper installation of the 9V battery in the multimeter's rear compartment.
- Įsitikinkite, kad multimetras yra IŠJUNGTAS.
- Raskite baterijų skyriaus dangtelį multimetro gale.
- Atsuktuvu atsukite varžtą, tvirtinantį akumuliatoriaus dangtelį.
- Atsargiai nuimkite dangtelį.
- Prijunkite 9 V bateriją prie akumuliatoriaus spaustukų, stebėdami teisingą poliškumą (+ prie + ir - prie -).
- Įdėkite bateriją į skyrių ir uždėkite dangtelį, pritvirtindami jį varžtu.
3.2 Bandymo laidų prijungimas
Prijunkite bandymo laidus prie atitinkamų multimetro įvesties lizdų:
- Įdėkite juodas bandymo laidas į COM (Įprastas) domkratas.
- Įdėkite raudona bandymo laidas į VΩmA jack for voltage, varžos ir mažų srovių matavimai.
- For measuring currents greater than 200mA (up to 10A), insert the raudona bandymo laidas į 10A domkratas.
CAUTION: Always ensure test leads are correctly inserted for the desired measurement to prevent damage to the multimeter or personal injury.
4. Naudojimo instrukcijos
The ANENG SZ308 features a user-friendly rotary dial for selecting various measurement functions.

Figure 4.1: The function dial allows selection of different measurement modes.
4.1 AC/DC ttage Matavimas

4.2 pav.: Kintamosios srovės įtampos matavimastage at an electrical outlet using the multimeter.
- Turn the function dial to the desired AC Voltage (V~) arba nuolatinės srovės įtampatage (V=) range.
- Connect the black test lead to the COM jack and the red test lead to the VΩmA jack.
- Touch the test probes to the points where you want to measure voltage.
- Perskaitykite ttage reikšmę LCD ekrane.
4.2 Nuolatinės srovės matavimas
The ANENG SZ308 can measure DC current in various ranges.
- Turn the function dial to the desired DC Current (A=) range (e.g., 200m, 10A).
- For currents up to 200mA, connect the black test lead to COM and the red test lead to VΩmA.
- For currents up to 10A, connect the black test lead to COM and the red test lead to the 10A jack.
- Open the circuit where you want to measure current and connect the multimeter in series.
- Nuskaitykite dabartinę vertę LCD ekrane.
4.3 Atsparumo matavimas
- Turn the function dial to the Resistance (Ω) range.
- Connect the black test lead to COM and the red test lead to VΩmA.
- Prieš matuodami varžą, įsitikinkite, kad grandinė yra atjungta nuo įtampos.
- Touch the test probes across the component or circuit you wish to measure.
- Nuskaitykite varžos vertę LCD ekrane.
4.4 Tęstinumo testas
- Turn the function dial to the Continuity (buzzer icon) range.
- Connect the black test lead to COM and the red test lead to VΩmA.
- Įsitikinkite, kad grandinėje nėra įtampos.
- Touch the test probes to the two points you want to check for continuity.
- Jei yra tęstinumas (maža varža), multimetras skleis garsinį pyptelėjimą.
4.5 Diodų bandymas
- Turn the function dial to the Diode (diode symbol) range.
- Connect the black test lead to COM and the red test lead to VΩmA.
- Įsitikinkite, kad diodas yra atjungtas nuo grandinės.
- Place the red probe on the anode and the black probe on the cathode of the diode.
- Perskaitykite pirmyn ttage drop on the LCD screen. Reverse the probes; an open circuit (OL) reading indicates a good diode.
4.6 hFE Measurement (Transistor Test)

Figure 4.3: Using the hFE function to test transistors.
- Turn the function dial to the hFE range.
- Identify the type of transistor (NPN or PNP) and its emitter, base, and collector leads.
- Insert the transistor leads into the corresponding holes in the hFE socket.
- Read the hFE value (DC current gain) on the LCD screen.
4.7 Stačiakampės bangos išvestis

Figure 4.4: The multimeter can generate a square wave signal for testing.
- Turn the function dial to the Square Wave (square wave symbol) setting.
- Connect the test leads to the VΩmA and COM jacks.
- The multimeter will output a square wave signal through the test leads, which can be used for testing audio circuits or other electronic components.
4.8 Duomenų sulaikymo funkcija
Paspauskite LAIKYTI button to freeze the current reading on the LCD screen. Press it again to release the hold and resume live measurements.
4.9 Apšvietimas
Paspauskite Foninis apšvietimas button (often indicated by a light bulb symbol) to illuminate the LCD screen for better visibility in low-light conditions. Press it again to turn off the backlight.
5. Priežiūra
5.1 Akumuliatoriaus keitimas
When the low battery indicator appears on the LCD, replace the 9V battery as described in Section 3.1. Using a low battery can lead to inaccurate readings.
5.2 Valymas
Nuvalykite multimetro casing su reklamaamp šluoste ir švelniu plovikliu. Nenaudokite abrazyvinių medžiagų ar tirpiklių. Prieš naudodami įsitikinkite, kad prietaisas yra visiškai sausas.
5.3 Saugiklio keitimas
The ANENG SZ308 is equipped with internal fuses for overload protection. If the multimeter fails to measure current, the fuse may need replacement. Refer to the internal diagram or contact customer support for guidance on fuse specifications and replacement procedures. Always replace with a fuse of the same type and rating.
6. Problemų sprendimas
- Nėra ekrano arba ekranas silpnas: Check battery installation. Replace the 9V battery if low battery indicator is on or if the display is dim.
- No reading in current mode: Check if the test leads are connected to the correct current jacks (VΩmA or 10A) and if the fuse is intact.
- Rodomas užrašas „OL“ (perkrova): The measured value exceeds the selected range. Select a higher range or ensure the circuit is within the multimeter's capabilities.
- Netikslūs rodmenys: Ensure the battery is not low, test leads are properly connected, and the correct function is selected. Avoid strong electromagnetic interference.
7. Specifikacijos
| Funkcija | Specifikacija |
|---|---|
| Prekės ženklas | ANENG |
| Modelis | SZ308 |
| Ekrano skaičius | 2000 Skaičių |
| Maitinimo šaltinis | 9V baterija (pridedama) |
| AC ttage | Iki 750V |
| DC ttage | Iki 1000V |
| DC srovė | Iki 10A |
| Atsparumas | Iki 20 MΩ |
| Tęstinumas | Taip (su garsiniu signalu) |
| Diodo testas | Taip |
| hFE testas | Taip |
| Kvadratinės bangos išvestis | Taip |
| Duomenų sulaikymas | Taip |
| Foninis apšvietimas | Taip |
| Apsauga nuo perkrovos | Yes (by fuses) |
| Gaminio matmenys | 50 x 50 x 20 mm |
| Prekės svoris | 0.6 gramų |
| Spalva | Juoda |
8. Garantija ir palaikymas
ANENG electrical testers come with service and technical support. For warranty claims, technical assistance, or any questions regarding your ANENG SZ308 Digital Multimeter, please refer to the contact information provided with your purchase or visit the official ANENG websvetainėje. Prašome išsaugoti pirkimo įrodymą garantijos tikslais.