NJTy T-6125 Digital Isolation Tester User Manual

1. Uvod

Thank you for choosing the NJTy T-6125 Digital Isolation Tester. This device is a professional-grade instrument designed for accurate measurement of insulation resistance, absorption ratio, polarization index, AC voltage, and low resistance. It features a high-performance integrated circuit, wide measurement range, and multiple test voltage levels, making it an essential tool for electricians and maintenance technicians. This manual provides detailed instructions for safe and effective operation, maintenance, and troubleshooting.

Slika 1: Prednja strana view of the NJTy T-6125 Digital Isolation Tester, showing the large LCD display and control dial.

2. Sigurnosne informacije

Molimo vas da pročitate i razumjete sva sigurnosna upozorenja i upute za upotrebu prije upotrebe ovog instrumenta. Nepoštivanje ovih uputa može dovesti do strujnog udara, požara ili ozbiljnih ozljeda.

• Uvijek se uvjerite da je uređaj u dobrom radnom stanju prije upotrebe. Ne koristite ako je oštećen.
• Ne koristite tester u vlažnim okruženjima ili eksplozivnim atmosferama.
• Nosite odgovarajuću ličnu zaštitnu opremu (LZO), kao što su izolirane rukavice i zaštitne naočale, prilikom izvođenja električnih mjerenja.
• Verify that the circuit under test is de-energized before connecting or disconnecting test leads, unless performing live voltage measurements as specified.
• Ne prekoračujte maksimalne ulazne nazivne vrijednosti za jačinu zvukatage i struja.
• Prije upotrebe provjerite je li odjeljak za baterije sigurno zatvoren.
• Refer to the warning label on the back of the device: "TO AVOID ELECTRICAL SHOCK, REMOVE TEST LEADS BEFORE OPENING CASE. READ OPERATING MANUAL."

3. Proizvod je gotovview

3.1 Ključne karakteristike

• Versatile Measurement: Measures insulation resistance, absorption ratio (DAR), polarization index (PI), AC voltage, and low resistance.
• Visoke performanse: Professional-grade integrated circuit design with wide measurement range and high output power.
• Multiple Test Voltages: Offers 100V, 250V, 500V, 1000V, and 2500V test voltage options for insulation resistance.
• Ekran prilagođen korisniku: Large LCD screen with grey-white backlight for easy readability.
• Upravljanje podacima: Features measurement data retention (HOLD), excessive alarm, and automatic shutdown.
• Izdržljiva konstrukcija: Designed to be shock-resistant and dust-proof, suitable for various electrical equipment testing.
• Automatic Discharge: Includes an automatic discharge function after insulation resistance testing.

3.2 Komponente i pribor

Figure 2: The NJTy T-6125 Isolation Tester shown with its carrying case, test leads, and alligator clips.

Paket obično uključuje:

• NJTy T-6125 Digital Isolation Tester
• Test Leads (Red, Black, Green)
• Aligator Clips
• Torbica za nošenje
• Korisnički priručnik (ovaj dokument)

Figure 3: Detail showing the large backlit LCD display and the robust, anti-fall plastic shell design of the T-6125.

4. Podešavanje

4.1 Instalacija baterije

1. Provjerite je li uređaj isključen iz napajanja i je li sve mjerne žice isključene.
2. Pronađite poklopac odjeljka za baterije na stražnjoj strani testera.
3. Koristite odvijač da otvorite poklopac pretinca za baterije.
4. Umetnite 8 x 1.5 V AA baterije, pazeći na ispravan polaritet (+/-) kao što je naznačeno unutar odjeljka.
5. Securely close the battery compartment cover and fasten the screws.

Slika 4: Pozadi view of the T-6125, highlighting the battery compartment cover.

Figure 5: The open battery compartment, showing the slots for 8 AA batteries.

4.2 Spajanje mjernih kabela

Connect the test leads to the appropriate input terminals on the tester. Ensure a secure connection before proceeding with any measurements.

5. Uputstvo za upotrebu

5.1 Uključivanje/isključivanje

• To power on, rotate the central rotary switch from the "OFF" position to the desired measurement function.
• To power off, rotate the central rotary switch to the "OFF" position.
• The device features an automatic shutdown function after 30 minutes of inactivity to conserve battery life.

Figure 6: Illustration of the 30-minute automatic shutdown feature for battery conservation.

5.2 Mjerenje otpora izolacije

1. Osigurajte da je strujno kolo koje se testira bez napona i sigurno ispražnjeno.
2. Connect the test leads to the circuit or component to be tested.
3. Rotate the central switch to one of the insulation resistance test voltage settings (e.g., 250V, 500V, 1000V, 2500V).
4. Pritisnite TEST dugme za pokretanje mjerenja. Na ekranu će se prikazati vrijednost otpora izolacije.
5. After the test, the device will automatically discharge the circuit.
6. Pritisnite HOLD button to retain the displayed measurement. Press again to release.

5.3 Absorption Ratio (DAR) and Polarization Index (PI) Measurement

1. Follow steps 1-3 for insulation resistance measurement.
2. Rotate the central switch to the "DAR/PI" position.
3. Pritisnite TEST button. The device will perform timed insulation resistance measurements to calculate DAR and PI.
4. The results will be displayed sequentially.

5.4 AC Voltage Measurement

1. Spojite mjerne kablove na AC voltage izvor.
2. Rotate the central switch to the "ACV" position.
3. AC voltage će biti prikazano na ekranu.

5.5 Mjerenje niskog otpora

1. Osigurajte da je strujno kolo koje se testira bez napona.
2. Connect the test leads to the component for low resistance measurement.
3. Rotate the central switch to the "Low Resistance" position (indicated by Ω).
4. The resistance value will be displayed.

Figure 7: The T-6125 being used in diverse applications such as industrial control panels, telecommunication towers, circuit boards, and automotive electrical systems.

6. Održavanje

• čišćenje: Koristite meku, damp cloth to clean the exterior of the device. Do not use abrasive cleaners or solvents.
• Zamjena baterije: Replace batteries promptly when the low battery indicator appears. Always use new, identical batteries.
• Skladištenje: Kada se uređaj ne koristi duži period, izvadite baterije kako biste spriječili curenje. Čuvajte uređaj na hladnom i suhom mjestu, dalje od direktne sunčeve svjetlosti i ekstremnih temperatura.
• kalibracija: For professional use, periodic calibration by qualified personnel is recommended to ensure accuracy.

7. Otkrivanje problema

8. Specifikacije

9. Garancija i podrška

For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact your retailer. Specific warranty terms may vary by region and seller.