1. Uvod in varnostne informacije
This manual provides essential instructions for the safe and effective operation, maintenance, and troubleshooting of your VOLTCRAFT VC851 Digital Multimeter. Please read this manual thoroughly before using the device and keep it for future reference.
1.1 Splošna varnostna opozorila
Always adhere to the following safety precautions to prevent electric shock, injury, or damage to the meter or equipment under test:
- The VOLTCRAFT VC851 is rated for CAT III 1000 V and CAT IV 600 V. Ensure you understand these categories and their implications for safe measurement.
- Ne nanašajte več kot nazivna voltage, kot je označeno na števcu, med priključki ali med katerim koli priključkom in ozemljitvijo.
- Bodite previdni pri delu z voltagnad 30 V AC RMS, 42 V vrhom ali 60 V DC. Te vol.tagpredstavljajo nevarnost električnega udara.
- Pred vsako uporabo preverite merilne kable glede poškodovane izolacije ali izpostavljene kovine. Poškodovane kable takoj zamenjajte.
- Ensure the rotary switch is in the correct position for the desired measurement before connecting the test leads to the circuit.
- Never use the meter if it appears damaged or if the case is open.
- Merilnika ne uporabljajte v okolju z eksplozivnimi plini, hlapi ali prahom.
- Preden spremenite funkcijo ali merilno območje, vedno odklopite merilne kable iz vezja.
- Baterijo zamenjajte takoj, ko se prikaže indikator nizke napolnjenosti baterije, da zagotovite natančne odčitke.
2. Izdelek je končanview
The VOLTCRAFT VC851 is a versatile digital multimeter designed for precise electrical measurements. It features a 6000-count display, auto-ranging capabilities, and integrated flashlight and screen illumination for use in various environments.

Slika 2.1: Spredaj view of the VOLTCRAFT VC851 Digital Multimeter with connected test leads. This image shows the display, rotary dial, function buttons, and input jacks.

Slika 2.2: Zadaj view of the VOLTCRAFT VC851 Digital Multimeter, illustrating the integrated test lead storage and kickstand.
3. Nastavitev in prvi zagon
3.1 Namestitev baterije
The VOLTCRAFT VC851 is powered by batteries. To install or replace batteries:
- Prepričajte se, da je multimeter izklopljen in odklopite vse merilne kable.
- Poiščite pokrov predalčka za baterije na zadnji strani naprave.
- Z izvijačem odprite predal za baterije.
- Insert new batteries, observing the correct polarity (+/-).
- Varno zaprite pokrov prostora za baterije.

Slika 3.1: Zadaj view of the multimeter, highlighting the battery compartment for installation or replacement.
3.2 Priključitev merilnih vodnikov
To prepare for measurements:
- Črni merilni kabel vstavite v vhodno vtičnico "COM" (common).
- Insert the red test lead into the appropriate input jack for your measurement:
- "VΩHz" for voltage, testi upornosti, frekvence, kapacitivnosti in diod.
- "mAµA" for milliamptukaj in mikroamptrenutne meritve.
- "10A" for high current (up to 10A) measurements.

Figure 3.2: The multimeter with test leads properly connected to the input jacks, ready for use.
4. Navodila za uporabo
The VOLTCRAFT VC851 features a rotary dial for selecting primary measurement functions and buttons for secondary functions and settings.
4.1 Izbira funkcije
Turn the central rotary dial to select the desired measurement function (e.g., V for voltage, A for current, Ω for resistance). The meter will automatically select the appropriate range (Auto-Range) for most measurements.
4.2 Načini merjenja
- voltage (V~ / V-): Measure AC or DC voltage. Select the appropriate voltage range using the rotary dial.
- Current (A~ / A-): Measure AC or DC current. Ensure test leads are connected to the correct current input jacks (mAµA or 10A) and the rotary dial is set to the corresponding current range.
- Upor (Ω): Measure resistance in ohms.
- Kontinuiteta: Test for continuity with an audible buzzer.
- Preizkus diode: Test diodes for proper function.
- Kapacitivnost (F): Measure capacitance in farads.
- Frekvenca (Hz): Measure frequency in hertz.
- Temperatura (°C/°F): Measure temperature using the included temperature probe.
4.3 Posebnosti
- Svetilka: Press the dedicated flashlight button to illuminate the work area.
- Osvetlitev zaslona: The display features backlighting for improved visibility in low-light conditions.
- Zadrževanje podatkov: Press the "HOLD" button to freeze the current reading on the display.
- Min/Max: Use the "MIN/MAX" function to record the minimum and maximum values during a measurement session.

Figure 4.1: The multimeter in use, demonstrating its application in an electrical panel for voltage or current checks.

Figure 4.2: The multimeter being used for precise measurements on a circuit board, showcasing its versatility for electronics work.
5. Vzdrževanje
Proper maintenance ensures the longevity and accuracy of your VOLTCRAFT VC851 Digital Multimeter.
5.1 Čiščenje
- Always turn off the meter and disconnect test leads before cleaning.
- Obrišite ohišje z oglasomamp krpo in blag detergent. Ne uporabljajte abrazivov ali topil.
- Ensure no moisture enters the case.
5.2 Zamenjava baterije
Refer to Section 3.1 for detailed instructions on battery replacement. Replace batteries promptly when the low battery indicator appears to maintain measurement accuracy.
5.3 Zamenjava varovalke
If the current measurement function stops working, the fuse may need replacement. Fuses are critical safety components. Always replace with a fuse of the specified type and rating.
- Prepričajte se, da je multimeter izklopljen in odklopite vse merilne kable.
- Open the battery compartment cover (refer to Section 3.1).
- Previdno odstranite staro varovalko.
- Install a new fuse of the exact same type and rating. Refer to the specifications section for fuse details.
- Varno zaprite pokrov prostora za baterije.
6. Odpravljanje težav
If you encounter issues with your VOLTCRAFT VC851, consult the following table for common problems and solutions.
| Težava | Možen vzrok | rešitev |
|---|---|---|
| Ni prikaza ali pa je prikaz bled | Baterije so prazne ali prazne | Zamenjajte baterije (glejte poglavje 3.1). |
| Nepravilni odčitki | Incorrect function/range selected; Damaged test leads; External interference | Verify rotary switch position; Inspect and replace test leads if damaged; Move away from strong electromagnetic fields. |
| Merjenje toka ne deluje | Blown fuse; Incorrect lead connection | Replace fuse (see Section 5.3); Ensure leads are in the correct current input jacks. |
| Prikazano je "OL" (preobremenitev) | Measurement exceeds selected range or meter's maximum capacity | Switch to a higher range if available, or ensure the measured value is within the meter's specifications. |
7. Tehnične specifikacije
| Funkcija | Specifikacija |
|---|---|
| Številka modela | VC-12884325 |
| Ocena varnosti | CAT III 1000V, CAT IV 600V |
| Zaslon šteje | 6000 šteje |
| Razpon | Samodejni razpon |
| Funkcije | AC/DC Voltage, AC/DC Current, Resistance, Continuity, Diode, Capacitance, Frequency, Temperature |
| Posebne lastnosti | Flashlight, Screen Illumination, Data Hold, Min/Max |
| Dimenzije (D x Š x V) | 4.3 x 9.1 x 20 cm (1.7 x 3.6 x 7.9 palca) |
| Teža | 430 gramov (0.95 lbs) |
| Vir napajanja | Baterijski pogon |
| Razpoložljivost rezervnih delov | 1 leto |
8. Garancija in podpora
VOLTCRAFT products are designed for reliability and performance. This product comes with a standard warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or visit the official VOLTCRAFT webmesto.
Spare parts are available for 1 year from the date of purchase. For technical support, service, or inquiries regarding spare parts, please contact VOLTCRAFT customer service through their official channels.
Za garancijske zahtevke shranite dokazilo o nakupu.





