Hioki DT4252 Standardni digitalni multimetar - uputstvo za upotrebu

1. Uvod

This manual provides essential instructions for the safe and effective use of the Hioki DT4252 Standard Digital Multimeter. The DT4252 is a True-RMS digital multimeter designed for general electrical applications, offering measurements for AC/DC voltage, AC/DC current, resistance, continuity, diode, capacitance, and frequency. Please read this manual thoroughly before operation to ensure correct usage and to prevent accidents.

2. Sigurnosne informacije

Always observe the following safety precautions to prevent electric shock, injury, or damage to the instrument.

• Ne koristite multimetar ako izgleda oštećeno ili ako su mjerni kablovi oštećeni.
• Verify the function switch is in the correct position for the measurement being performed.
• Do not exceed the maximum input ratings for any function. The DT4252 is rated for 1000V AC/DC and 10A direct input.
• Budite oprezni kada radite sa voltagiznad 30V AC RMS, 42V peak ili 60V DC. Ovi volumenitagpredstavljaju opasnost od strujnog udara.
• Uvijek prvo spojite zajednički (COM) ispitni kabel, a posljednji ga isključite.
• Ensure your hands are dry and use insulated gloves when necessary.
• Odmah zamijenite baterije kada se pojavi indikator niske napunjenosti baterije.
• Ne pokušavajte mjeriti struju na kolu s voltage present without proper precautions and understanding of the circuit.

3. Sadržaj paketa

Prilikom otvaranja paketa, provjerite da li su svi artikli prisutni i neoštećeni:

• Hioki DT4252 Digital Multimeter
• Set test provodnika
• AAA baterije (x4)
• Uputstvo za upotrebu (ovaj dokument)

4. Proizvod je gotovview

The Hioki DT4252 features a robust design with a clear digital display and intuitive controls.

Slika 1: Prednja strana view of the Hioki DT4252 Digital Multimeter with its integrated kickstand extended, showing the display and rotary switch.

Slika 2: Prednja strana view of the Hioki DT4252 Digital Multimeter, illustrating the display, function buttons, rotary switch, and input terminals.

4.1. Displej

The large LCD shows measurement values, units, and various indicators such as battery status, range, and function modes.

4.2. Funkcijski tasteri

• DRŽI: Zamrzava trenutno očitavanje ekrana. Pritisnite ponovo za otpuštanje.
• MAX/MIN: Records the maximum and minimum values during a measurement. Press to cycle through MAX, MIN, and current reading.
• FILTER: Activates a low-pass filter for stable readings in noisy environments.
• RANGE: Ručno bira raspon mjerenja. Pritisnite i držite za povratak na automatsko podešavanje raspona.
• REL (Relativno): Mjeri razliku između trenutnog očitanja i pohranjene referentne vrijednosti.
• Dugme za pozadinsko osvjetljenje: Activates the display backlight for improved visibility in low-light conditions.

4.3. Rotary Switch

Used to select the desired measurement function (e.g., V~, V-, A~, A-, Ω, Continuity, Diode, Capacitance, Frequency).

4.4. Ulazni terminali

• COM: Common terminal for the black test lead.
• V Ω •))) →|← •F Hz: Input terminal for red test lead for voltage, resistance, continuity, diode, capacitance, and frequency measurements.
• A: Input terminal for red test lead for current measurements up to 10A.

5. Podešavanje

5.1. Instalacija baterije

1. Provjerite je li multimetar isključen.
2. Locate the battery compartment cover on the rear of the unit.
3. Koristite odvijač da biste otpustili vijak(e) koji pričvršćuju poklopac.
4. Remove the cover and insert four (4) AAA batteries, observing correct polarity (+/-).
5. Replace the cover and secure it with the screw(s).

5.2. Povezivanje ispitnih vodova

Insert the test leads into the appropriate input terminals:

• Uvijek spojite crni mjerni kabel na COM terminal.
• Za voltage, resistance, continuity, diode, capacitance, and frequency measurements, connect the red test lead to the V Ω •))) →|← •F Hz terminal.
• For current measurements (up to 10A), connect the red test lead to the A terminal.

6. Uputstvo za upotrebu

Before making any measurement, ensure the test leads are correctly connected and the rotary switch is set to the appropriate function.

6.1. Mjerenje AC/DC naponatage (V~ / V-)

1. Postavite okretni prekidač na V~ za AC voltage ili V- za DC voltage.
2. Spojite mjerne kablove paralelno preko strujnog kola ili komponente koju treba mjeriti.
3. Pročitajte voltage vrijednost na ekranu.

6.2. Measuring AC/DC Current (A~ / A-)

WARNING: Never connect the multimeter in parallel across a voltage source when in current measurement mode. This can cause a short circuit and damage the meter or circuit.

1. ISKLJUČITE napajanje strujnog kola.
2. Postavite okretni prekidač na A~ za naizmjeničnu struju ili A- for DC current.
3. Connect the multimeter in series with the circuit, breaking the circuit to insert the meter.
4. Uključite struju u kolo.
5. Očitajte trenutnu vrijednost na displeju.

6.3. Mjerenje otpora (Ω)

1. Osigurajte da je strujni krug ili komponenta bez napona.
2. Postavite okretni prekidač na Ω.
3. Spojite mjerne kablove preko komponente.
4. Očitajte vrijednost otpora na zaslonu.

6.4. Continuity Test (•))) )

1. Osigurajte da je strujni krug ili komponenta bez napona.
2. Postavite okretni prekidač na •))).
3. Spojite mjerne kabele preko komponente ili žice.
4. Zvučni signal označava kontinuitet (nizak otpor). Na ekranu će se prikazati vrijednost otpora.

6.5. Diode Test (→|←)

1. Ensure the diode is de-energized and isolated from the circuit.
2. Postavite okretni prekidač na →|←.
3. Spojite crveni kabel na anodu, a crni kabel na katodu. Naprijed vol.tage drop (e.g., 0.5V to 0.8V) should be displayed.
4. Reverse the leads. The display should show OL (Open Loop) for a good diode.

6.6. Mjerenje kapacitivnosti (F)

1. Prije testiranja provjerite je li kondenzator potpuno ispražnjen.
2. Postavite okretni prekidač na F.
3. Spojite mjerne kablove preko priključaka kondenzatora.
4. Očitajte vrijednost kapacitivnosti na ekranu.

6.7. Mjerenje frekvencije (Hz)

1. Postavite okretni prekidač na Hz.
2. Spojite mjerne kabele preko izvora signala.
3. Očitajte vrijednost frekvencije na ekranu.

7. Održavanje

7.1. Čišćenje

Obrišite kućište oglasomamp krpu i blagi deterdžent. Ne koristite abrazivna sredstva ili rastvarače. Prije upotrebe provjerite je li mjerač potpuno suh.

7.2. Zamjena baterije

When the low battery indicator appears on the display, replace the batteries as described in Section 5.1. Use only new AAA batteries of the same type.

7.3. Zamjena osigurača

If the current measurement function fails, the fuse may need replacement. The DT4252 uses a 10A fused input. Refer to the detailed service manual for fuse replacement procedures, or contact qualified service personnel.

8. Otkrivanje problema

If the multimeter does not operate correctly, check the following common issues:

• Bez prikaza: Provjerite instalaciju baterija i nivo napunjenosti. Zamijenite baterije ako je potrebno.
• Netačna očitanja: Ensure the function switch is set correctly for the measurement type. Verify test lead connections. Check for damaged test leads.
• Prikaz "OL" (preopterećenje): The measured value exceeds the selected range. Switch to a higher range or ensure the input is within the meter's specifications.
• Mjerenje struje ne radi: Check the 10A fuse. If blown, it needs replacement by qualified personnel.

For persistent issues, contact Hioki customer support.

9. Specifikacije

10. Garancija i podrška

The Hioki DT4252 Digital Multimeter is covered by a manufacturer's warranty against defects in materials and workmanship. For specific warranty terms, duration, and to obtain technical support or service, please refer to the warranty card included with your product or visit the official Hioki webSačuvajte račun kao dokaz o kupovini.