UNI-T UT116A/UT116C Digital Tweezers SMD Tester User Manual

1. Uvod i sigurnosne smjernice

Hvala na kupoviniasing the UNI-T UT116 series SMD Tester. This instrument is a miniaturized, integrated, and brand-new tool designed for precise measurements of Surface Mount Device (SMD) components. It is ideal for electronic factories and maintenance tasks.

The UT116 series can automatically identify and measure resistance, capacitance, and diode (RCD) parameters. Additionally, it supports LED, Zener diode, continuity (on/off), and DC voltage measurements up to 36V. The tester's case is made of plastic, and the test ends are gold-plated to prevent rust, ensuring durability and accuracy.

This product complies with the 2nd grade environmental pollution safety standard and European Union CE certification (EMC electromagnetism compatible).

1.1 Sigurnosne smjernice

• Before use, always inspect the tester for any damage to the case or metal clamp arm. Do not use if any damage is found.
• Ne unosite DC jačinu zvukatage exceeding 36V to the measuring port.
• Do not use the tester in environments with explosive gas, steam, or dust.
• Upozorenje: Do not measure any live circuit except for the DC 36V scale.

2. Proizvod je gotovview i karakteristike

The UNI-T UT116 series SMD Testers are designed for efficiency and accuracy in testing various electronic components.

2.1 Ključne karakteristike

• Broj prikaza: UT116A features a 3000-count LCD display, while UT116C features a 6000-count LCD display.
• Automatsko podešavanje raspona: Automatski bira odgovarajući opseg mjerenja.
• Auto Scan Identification: Automatically identifies resistance, capacitance, and diode (UT116A only).
• Zadržavanje podataka: Zamrzava trenutno mjerenje na ekranu.
• Rotatable Tweezer: The test pen can be rotated by 180°, which is convenient for reading and testing of diodes/LEDs.
• Test baterije: UT116C model includes a battery voltage measurement function (load current ≈ 10mA).
• Automatsko isključivanje: The tester automatically shuts down after 10 minutes (UT116A) or 15 minutes (UT116C) of inactivity to conserve battery life.
• Gold-plated Tweezers: For higher accuracy and corrosion resistance.

2.2 Product Structure and Control Panel

Familiarize yourself with the components of your SMD tester:

• 1. LCD ekran: Prikazuje očitanja mjerenja i indikatore.
• 2. Function Button (SELECT): Used to select functions when in R/D/C gear. Long press to restart or turn off (UT116A only in R/D/C scale).
• 3. Data Hold Button (HOLD): Freezes the current measurement. Press again to release.
• 4. Function Key: (samo UT116C)
• 5. Handle Part of the Test Arm: Ergonomski rukohvat za udobnu upotrebu.
• 6. Test Input Port (+): Positive test terminal.
• 7. Test Public Port (-): Negative test terminal.
• 8. Battery Cover: Pristup za zamjenu baterije.
• 9. Test Lead Case: Skladište za mjerne kablove.
• 10. Spare Test Clamps: Dodatni clamps za različite primjene.

The test pen can be rotated by 180°, allowing for flexible use and easy reading of the display, especially when testing components in different orientations.

3. Podešavanje i rad

3.1 Instalacija baterije

The UT116 series testers require two 1.5V AAA (R03) batteries. Batteries are not included in the package due to shipping restrictions.

1. Provjerite je li tester isključen iz napajanja.
2. Locate the battery cover on the bottom of the device.
3. Open the battery cover and insert two 1.5V AAA batteries, observing the correct polarity.
4. Čvrsto zatvorite poklopac baterije.

The tester will turn on automatically after battery installation. If the tester works abnormally or displays the low battery symbol (+ -), replace the batteries.

3.2 Radno okruženje

• Samo za unutrašnju upotrebu.
• Altitude: < 2000m.
• Operating Temperature: 0°C to 40°C (32°F to 104°F).
• Relative Humidity: < 80% RH.
• If the temperature is outside 18°C to 28°C, an additional temperature coefficient error of 0.1 x (specify accuracy)/°C will apply.

3.3 Funkcije mjerenja

Automatic Identification (UT116A Only)

When the UT116A is turned on, the LCD will display "SCAN" and "---", indicating it is in automatic identification mode. It will automatically identify and measure resistance, capacitance, and diode. The measurement value will be displayed when the test leads contact the object.

Upozorenje:

Always discharge high voltage resistance and disconnect power when measuring components on a PCB board to prevent damage to the tester or the components.

Mjerenje otpora

• Adjust the function button to the Ω skala.
• In automatic identification mode (UT116A), the range is 300.0Ω to 30.00MΩ.
• For UT116C, select the resistance auto range mode using the SELECT button.
• The LCD will display "OL" (Over Load) if the value exceeds the acceptable range.

Mjerenje kapacitivnosti

• In automatic identification mode (UT116A), the range is 3.000nF to 300.0uF.
• For UT116C, select the capacitance auto range mode using the SELECT button.

Upozorenje:

Before capacitance measurement, ensure the power is disconnected and all high voltage resistance is completely discharged to prevent damage to the tester or measuring objects.

Diode Measurement

• Switch the function key to the + - skala.
• Press the SELECT button to choose auto identify mode or diode mode.
• Connect the anode test lead to the anode of the diode and the cathode test lead to the cathode of the diode.
• LCD će prikazati jačinu zvuka unaprijedtage drop value 0.5V-0.8V of measure silicon diode.
• Otvoreno kolo voltage: 3.0V (UT116A), 3.2V (UT116C). Forward current: 2mA.

Continuity Test (On/Off Test)

• Adjust the function button to the ))) skala.
• Press SELECT to choose automatic identification or on/off test mode.
• The buzzer will beep if the resistance is less than 30Ω (UT116A) or 50Ω (UT116C). No beep for resistance over 1000Ω.

Semi-conductor or LED Test

• Adjust the function button to the LED skala.
• Connect the input port and the public test port to the anode and cathode of the Zener diode or LED. The directions of anode and cathode can be adjusted by rotating the test leads.
• The LCD will display the Zener diode breakdown voltage ili jačina zvuka LED diodetage.
• Otvoreno kolo voltage: about 21V. If the displayed voltage exceeds 21V, the measuring semi-conductor or LED will not be damaged. Current: about 1mA.

DC Voltage Measurement (UT116A Only)

• Adjust the function button to the DCV skala.
• Connect the test leads correctly to the DC voltage izvor.
• LCD će prikazati izmjerenu zapreminutage value (Max 36V).

Battery Voltage Measurement (UT116C Only)

• Adjust the function button to the DCV skala.
• Connect the test leads to the battery terminals.
• LCD će prikazati izmjerenu zapreminutage value. This mode has a load current of approximately 10mA.

Napomena:

Do not measure other live circuits with the UT116C battery voltage measurement mode. The forward load is about 10mA, and there is no load for reverse. There may be offsets in the measurement of forward and reverse battery voltage. Reverse battery voltage is virtually high.

4. Održavanje i čišćenje

4.1 Low Battery Indication and Replacement

The battery needs to be replaced if any of the following occur:

• The + - symbol appears on the display during use.
• Zujalica se oglašava kada se tester pokrene, a zatim se ponovo isključi.
• Tester se ponovo pokreće ili isključuje prema LED testnoj skali.

Za zamjenu baterija:

1. Isključite napajanje.
2. Otvorite poklopac baterije na dnu uređaja.
3. Load two new 1.5V AAA batteries, ensuring correct polarity.
4. Dobro zatvorite poklopac baterije.

4.2 Čišćenje

• Očistite tester casing s oglasomamp krpom i blagim deterdžentom.
• Ne koristite abrazivna sredstva za čišćenje ili rastvarače, jer mogu oštetiti uređaj.

5. Specifikacije

The following table details the electrical characteristics and general specifications for both UT116A and UT116C models.

6. Otkrivanje problema

If you encounter issues with your UNI-T UT116 series SMD Tester, consider the following common troubleshooting steps:

• No Display or Abnormal Readings: Check battery installation and replace with fresh 1.5V AAA batteries if the low battery indicator is on or if the tester behaves abnormally (e.g., beeps and shuts down immediately).
• Netačna mjerenja: Ensure proper contact with the component. For capacitance and high resistance measurements, ensure the circuit is de-energized and components are fully discharged. Verify the correct function mode is selected.
• Test kontinuiteta ne pišti: Check if the resistance of the component is above the threshold (30Ω for UT116A, 50Ω for UT116C).
• Diode/LED Test Issues: Ensure correct polarity connection. The test leads can be rotated 180° for convenience.
• Tester Shuts Down Unexpectedly: This is often due to the auto power-off feature (10 minutes for UT116A, 15 minutes for UT116C). Press any button to reactivate. If it shuts down immediately after turning on, check the battery.

For more complex issues, refer to the detailed user manual (PDF) or contact customer support.

7. Savjeti za korisnike

• Odabir modela: The UT116C offers a higher display count (6000 vs 3000) and a wider measurement range for resistance (60MΩ vs 30MΩ) and capacitance (100mF vs 30mF) compared to the UT116A. The UT116A has auto scan identification for R/C/D, while the UT116C has a battery test function. Choose the model that best fits your specific measurement needs.
• Pražnjenje kondenzatora: Always ensure capacitors are fully discharged before testing to prevent damage to the meter and for accurate readings.
• Component Polarity: When testing diodes or LEDs, pay attention to polarity. The rotatable tweezers make it easier to adjust for correct contact.
• SMD Work: The compact design and tweezer-style probes are excellent for working with small SMD components on crowded PCBs.

8. Garancija i podrška

8.1 Ograničena garancija

Uni-Trend guarantees that this product is free from defects in material and workmanship for one year from the purchase date. This warranty does not cover damages caused by accident, negligence, misuse, modification, contamination, or improper handling. The dealer is not authorized to provide any other warranty on behalf of Uni-Trend. For warranty service within the warranty period, please contact your seller directly.

Uni-Trend is not responsible for any special, indirect, incidental, or subsequent damage or loss caused by using this device.

8.2 Dodatna oprema

Standardni paket uključuje:

• Dva rezervna testna klaamps
• A user manual (this document)
• Par specijalnih ispitnih kablova

Please note that product pictures and contents are for reference only. Specifications are based solely on actual products, and Uni-Trend reserves the right to change specifications without prior notice.

8.3 Podaci za kontakt proizvođača

9. Često postavljana pitanja (FAQ)

Q: What is the main difference between UT116A and UT116C?

A: The UT116A features automatic identification for resistance, capacitance, and diode, and a 3000-count display. The UT116C has a higher 6000-count display, wider measurement ranges for resistance (up to 60MΩ) and capacitance (up to 100mF), and includes a battery test function. The UT116A's auto-scan feature simplifies component identification, while the UT116C offers higher precision and a dedicated battery test.

Q: Does the tester measure capacitance up to 100 microfarads?

A: Yes, the UT116C model can measure capacitance up to 100mF (100,000 microfarads). The UT116A measures up to 30mF (30,000 microfarads).

Q: Which model is better, UT116A or UT116C?

A: The "better" model depends on your specific needs. If you prioritize automatic component identification and a slightly lower price point, the UT116A is a good choice. If you need higher precision (6000 counts), wider measurement ranges for resistance and capacitance, and a dedicated battery test function, the UT116C would be more suitable.