Uni-T UT18D Automatic Range Voltage Panguji

1. Bubuka

The Uni-T UT18D is a versatile automatic range voltage tester designed for measuring AC and DC voltage, including three-phase AC current. It features three-phase AC power indicator phase, RCD testing, single-pole measurement (to identify live/neutral lines), self-check, and battery-free detection capabilities. This device is suitable for professional electricians and DIY enthusiasts for various electrical testing needs.

Figure 1: Uni-T UT18D Voltage Tester with highlighted features.

2. Émbaran Kasalametan

Always adhere to local and national safety regulations when working with electrical systems. This device is rated CAT III 690V and CAT IV 600V, and has an IP65 waterproof rating, ensuring safety under specified conditions. However, proper precautions must always be taken.

• Always assume circuits are live until proven otherwise.
• Wear appropriate Personal Protective Equipment (PPE), such as insulated gloves and safety glasses.
• Ulah dianggo alat ieu upami katingalina ruksak atanapi nuju beroperasi sacara teu normal.
• Ulah ngaleuwihan vol maksimumtagrating anu ditangtukeun pikeun alat éta.
• Ensure the test probes are securely connected and in good condition before use.

Figure 2: Safety certifications and dimensions of the UT18D.

3. Produk Langkungview

The UT18D features a robust design with clear indicators for ease of use. Key components include:

• Test Pen Caps: Protective covers for the test probes.
• Test Pens L1 & L2: Probes for making electrical contact.
• Senter: Integrated light for illuminating dark work areas.
• Voltage Indication (LED): LED bar graph for quick voltage level reference.
• Layar LCD: Large screen for precise voltage readings and other information.
• Tombol Tes RCD: Initiates the Residual Current Device test.
• Flashlight/Self-Inspection Button: Activates the flashlight and performs self-inspection.
• Hold Mode/Backlight Button: Freezes the display reading; long press activates backlight.
• Panutup batré: Access point for battery replacement.

Figure 3: Labeled components of the UT18D.

4. Setélan

4.1 Pamasangan batré

The UT18D requires 2 AAA batteries for operation. These batteries are typically not included with the device.

1. Teang panutup batre dina tonggong alat.
2. Paké obeng pikeun muka panutup batré.
3. Selapkeun 2 batré AAA, mastikeun polaritasna bener (+/-).
4. Tutup tutup batre aman.

The device features an automatic power-off function to conserve battery life and can perform basic voltage detection without batteries, though full functionality like continuity testing requires them.

5. Parentah Operasi

5.1 AC/DC Voltage Pangukuran

The UT18D automatically detects AC/DC voltage within the 12V to 690V range.

1. Remove the protective caps from the test probes.
2. Sambungkeun probe tés kana sirkuit atanapi komponén anu anjeun hoyong ukur.
3. Voltage level will be displayed on the LCD, and the corresponding LEDs will illuminate.

5.2 Tés Continuity

The continuity test function requires batteries to be inserted and in good condition. Ensure the circuit under test is not live.

1. Pastikeun sirkuit de-energized.
2. Sambungkeun probe tés ka sakuliah sirkuit atanapi komponén.
3. A buzzer will sound, and an LED will illuminate to confirm continuity.

Figure 4: Performing a continuity test.

5.3 Uji RCD (Alat Arus Residual)

The RCD test function detects leakage protective switches. This function should NOT be used in 110V electrical systems.

1. Connect the test probes to the circuit where an RCD is present.
2. Press the RCD test button.
3. Perhatikeun upami RCD peupeus, nunjukkeun fungsi anu leres.

Figure 5: Performing an RCD test.

5.4 Phase Sequence Test

Unit ieu bisa nangtukeun rotasi fase dina suplai tilu-fase.

1. Connect the test probes to the three-phase lines as indicated by the device or diagram.
2. The display will indicate the phase rotation (e.g., R for clockwise, L for counter-clockwise).

Figure 6: Phase Rotation Test procedure.

5.5 Single-Pole Measurement

The single-pole measurement allows identification of live or neutral lines using a single probe.

1. Touch one test probe to the conductor.
2. The device will indicate if the line is live (phase) or neutral.

5.6 Flashlight and Backlight

Activate the built-in flashlight by pressing the dedicated button to illuminate dark work areas. A long press of the Hold button may activate the LCD backlight for improved visibility in low light conditions.

Figure 7: Flashlight feature in use.

6. Pangropéa

To ensure the longevity and accuracy of your UT18D voltage tester, follow these maintenance guidelines:

• beberesih: Ngusap alat ku kaen garing, lemes. Ulah make cleaners abrasive atawa pangleyur.
• Panyimpenan: Simpen alat dina tempat anu tiis, garing, jauh tina sinar panonpoé langsung sareng suhu anu ekstrim.
• Ngagantian batré: Replace batteries promptly when the low battery indicator appears on the LCD. Remove batteries if the device will not be used for an extended period.
• Tahan cai: The UT18D has an IP65 waterproof rating, providing protection against dust and water jets. While it is resistant, avoid submerging the device or exposing it to high-pressure water.

Gambar 8: Fitur tahan cai IP65.

7. Cara ngungkulan

If you encounter issues with your UT18D, consider the following:

• Alat Teu Dihurungkeun: Pariksa naha batréna leres dipasang sareng gaduh muatan anu cekap. Ganti batré upami diperlukeun.
• Bacaan teu konsisten: Ensure proper contact between the test probes and the circuit. Verify that the circuit conditions are within the device's specified operating range.
• Henteu aya indikasi kontinuitas: Confirm that batteries are installed and in good condition. Ensure the circuit is de-energized before testing continuity.

For persistent issues, refer to the detailed specifications or contact customer support.

8. Spésifikasi

9. Garansi jeung Rojongan

For warranty information, technical support, or service inquiries, please contact Uni-T customer service directly or visit the official Uni-T websitus. Simpen resi pameseran anjeun salaku bukti pameseran pikeun klaim garansi.