Extech EX310 mini digitalni multimetar s NCV detektorom Upute za uporabu

1. Uvod

The Extech EX310 is a compact, manual-ranging digital multimeter designed for a variety of electrical measurements. It features an extra-large 2000-count LCD and a built-in Non-Contact AC Voltage Detector (NCV) for enhanced safety. This device is capable of measuring AC/DC Voltage, AC/DC Current, Resistance, Diode, and Continuity, and includes a battery test function for 1.5V and 9V batteries. Its robust design, including a protective rubber holster and tilt stand, makes it suitable for field use.

2. Sigurnosne informacije

Always adhere to safety precautions when using any electrical testing equipment. Failure to do so may result in injury or damage to the meter or equipment under test.

• The Extech EX310 is UL listed with a CAT III – 600 Volt safety rating.
• Nemojte nanositi više od nazivnog voltage, kako je označeno na brojilu, između priključaka ili između bilo kojeg priključka i uzemljenja.
• Always inspect test leads for damage before use. Replace if insulation is compromised.
• Budite izuzetno oprezni pri radu s strujnim krugovima pod naponom.
• Koristite beskontaktni Voltage (NCV) detector as a preliminary check for live AC voltage, but always verify with direct contact measurements when possible.
• Prije mjerenja provjerite je li funkcijski prekidač postavljen na ispravan raspon.

3. Značajke proizvoda

• 9-Function Manual-Ranging DMM: Mjere AC/DC voltage, AC/DC current (up to 10 A), resistance, diode, continuity, plus 1.5 V/9 V battery tests.
• Beskontaktni svtage (NCV) detektor: Built-in NCV with red LED and audible beeper alerts to the presence of live AC (100-600 VAC) without probes.
• Extra-Large 2000-Count Display: Clear, easy-to-read 1-inch digits on a high-count LCD ensure readability.
• Rugged, Portable Design: Compact meter (5.7 × 2.9 × 1.6 in, 9 oz) with protective rubber holster, tilt stand, and low-battery indicator.
• Reliable Safety & Accuracy: 0.5% basic accuracy. Designed to UL/CAT II-1000 V & CAT III-600 V safety standards.

4. Sadržaj paketa

The Extech EX310 package includes the following items:

• Extech EX310 Mini Digital Multimeter
• Test Leads
• Baterija od 9 volta
• Nagibno postolje

5. Proizvod je gotovview (Controls and Display)

Familiarize yourself with the components of your EX310 multimeter:

Slika: prednja strana view of the Extech EX310 Mini Digital Multimeter, showing the large LCD display, function dial, NCV button, and input jacks.

Image: Close-up of the Extech EX310's function dial, illustrating the various measurement ranges and functions such as voltage, current, resistance, diode, continuity, and battery test.

• LCD zaslon: Prikazuje očitanja mjerenja, jedinice i indikatore funkcija.
• Funkcijski prekidač: Rotary dial to select the desired measurement function and range.
• Gumb NCV: Aktivira beskontaktni volumentagznačajka detekcije e.
• Ulazni priključci: Priključci za spajanje mjernih kabela (COM, VΩmA, 10A).

6. Postavljanje

6.1. Ugradnja baterije

1. Provjerite je li multimetar ISKLJUČEN.
2. Pronađite poklopac odjeljka za baterije na stražnjoj strani mjerača.
3. Odvrnite pričvrsni vijak(e) i skinite poklopac.
4. Insert a new 9V battery, observing correct polarity.
5. Replace the cover and secure with the screw(s).

Indikator slabe baterije pojavit će se na zaslonu kada je potrebno zamijeniti bateriju.

6.2. Spajanje mjernih kabela

Spojite mjerne kabele na odgovarajuće ulazne priključke:

• Umetnite crni ispitni kabel u COM (obična) utičnica.
• Za većinu mjerenja (Voltage, Resistance, Diode, Continuity, mA Current), insert the red test lead into the VΩmA utičnica.
• Za mjerenja visoke struje (do 10 A), umetnite crveni mjerni kabel u 10A utičnica.

7. Upute za rad

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

7.1. AC/DC svtage Mjerenje

1. Set the function switch to the desired ACV (~) or DCV (---) range (e.g., 200V, 600V).
2. Spojite crveni mjerni kabel na VΩmA priključak, a crni mjerni kabel na COM priključak.
3. Dodirnite mjerne sonde točkama strujnog kruga gdje je voltage treba mjeriti.
4. Pročitajte svtage vrijednost na LCD -u.

7.2. Mjerenje AC/DC struje

Oprez: Never attempt to measure current on a circuit with voltage present across the current terminals. This can blow the fuse or damage the meter.

1. Isključite strujni krug.
2. Set the function switch to the desired ACA (~) or DCA (---) range (e.g., 200mA, 10A).
3. Connect the red test lead to the appropriate current jack (VΩmA for mA, 10A for 10A) and the black test lead to the COM jack.
4. Otvorite strujni krug u kojem se mjeri struja i spojite mjerač serijski.
5. Priključite napajanje na strujni krug i očitajte vrijednost struje na LCD zaslonu.

7.3. Mjerenje otpora

1. Provjerite je li strujni krug ili komponenta bez napona.
2. Set the function switch to the desired Resistance (Ω) range (e.g., 200Ω, 20kΩ).
3. Spojite crveni mjerni kabel na VΩmA priključak, a crni mjerni kabel na COM priključak.
4. Touch the test probes across the component or circuit to be measured.
5. Očitajte vrijednost otpora na LCD-u.

Image: The Extech EX310 Multimeter displaying a reading while test leads are connected to a circuit board, demonstrating a typical measurement scenario.

7.4. Ispitivanje dioda

1. Provjerite je li komponenta bez napona.
2. Set the function switch to the Diode (→|) position.
3. Spojite crveni mjerni kabel na VΩmA priključak, a crni mjerni kabel na COM priključak.
4. Dodirnite crvenu sondu na anodu, a crnu sondu na katodu diode.
5. Pročitajte naprijed svtage drop on the LCD. Reverse the probes to check for an open circuit (OL).

7.5. Test kontinuiteta

1. Provjerite je li strujni krug ili komponenta bez napona.
2. Set the function switch to the Continuity (→))) position.
3. Spojite crveni mjerni kabel na VΩmA priključak, a crni mjerni kabel na COM priključak.
4. Touch the test probes across the circuit or component.
5. An audible tone will sound if continuity exists (resistance below approximately 30Ω).

Slika: Krupni plan view of the Extech EX310 Multimeter with its test leads connected to an internal electronic circuit, demonstrating precise measurement capabilities.

7.6. Beskontaktni svtage (NCV) Detekcija

1. Postavite funkcijski prekidač u bilo koji položaj.
2. Press and hold the NCV button.
3. Move the top of the meter (where the NCV sensor is located) close to the suspected AC voltage source (e.g., wire, outlet).
4. A red LED will illuminate and an audible beeper will sound, increasing in intensity as the meter gets closer to the live AC voltage.

Image: A hand holding the Extech EX310 Multimeter near an electrical wall outlet, demonstrating the use of the Non-Contact Voltage (NCV) detection feature to identify live circuits.

7.7. Battery Test (1.5V/9V)

1. Set the function switch to the 1.5V BAT or 9V BAT position.
2. Spojite crveni mjerni kabel na VΩmA priključak, a crni mjerni kabel na COM priključak.
3. Touch the red probe to the positive terminal and the black probe to the negative terminal of the battery.
4. Pročitajte volumen baterijetage na LCD-u.

8. Održavanje

8.1. Zamjena baterije

Refer to Section 6.1 for detailed instructions on replacing the 9V battery when the low battery indicator appears.

8.2. Zamjena osigurača

If the current measurement functions cease to operate, the internal fuse(s) may need replacement. The fuses are typically located beneath the battery compartment. Refer to the full product manual for specific fuse ratings and replacement procedures. Always replace with fuses of the identical type and rating.

8.3. Čišćenje

Povremeno obrišite kućište reklamomamp krpom i blagim deterdžentom. Nemojte koristiti abrazivna sredstva ili otapala. Prije upotrebe provjerite je li mjerač potpuno suh.

9. Rješavanje problema

• Nema zaslona: Check the 9V battery. Ensure it is correctly installed and has sufficient charge.
• Netočna očitanja: Verify that the function switch is set to the correct measurement type and range. Ensure test leads are properly connected and making good contact with the circuit.
• Mjerenje struje ne radi: Check the internal fuse(s). Refer to the Maintenance section for fuse replacement.
• NCV se ne otkriva: Ensure the NCV button is pressed and held. Confirm the presence of AC voltage (100-600 VAC) in the area being tested.

10. Specifikacije

Image: Diagram illustrating the physical dimensions of the Extech EX310 Multimeter, showing a length of 6.0 inches (15 cm).

11. Informacije o jamstvu

The Extech EX310 Mini Digital Multimeter is covered by a 1-godišnje jamstvo na dijelove i rad from the date of purchase. Please retain your proof of purchase for warranty claims. This warranty covers manufacturing defects and workmanship under normal use.

12. Korisnička podrška

For technical assistance, troubleshooting beyond this manual, or warranty service, please contact Extech customer support. Refer to the official Extech webnajnovije kontaktne podatke potražite na web-mjestu ili pakiranju proizvoda.