UNI-T UT251C Current Leakage Clamp Manual Arahan Meter

1. Produk Lebihview

The UNI-T UT251C is a high-accuracy, high-sensitivity leakage current clamp meter designed for precise measurement of AC leakage current. This instrument is suitable for various applications, including checking leakage current in motors, home appliances, and other electrical equipment, with a measurement capability up to 600A.

Image: UNI-T UT251A and UT251C models.

2. Ciri-ciri Utama

• paparan: 4-digit LCD digital display with 10000 count.
• Pengukuran: Auto range for current measurement.
• SampKadar ling: 2 samples sesaat.
• Data Functions: Peaks hold and Data hold capabilities.
• Penyimpanan Data: Stores up to 99 sets of data.
• Ketersambungan: RS-232 interface for data transmission.
• Pengurusan tenaga: Auto power off feature.
• Petunjuk: Overload indication and low battery indication.

3. Apa yang ada di dalam Kotak

Upon unpacking, please verify that all standard accessories are present:

• UNI-T UT251C Clamp Meter
• Manual Arahan
• Bateri
• Charger (if applicable)
• Kabel Antara Muka RS-232

Jika terdapat sebarang barang yang hilang atau rosak, sila hubungi pembekal anda dengan segera.

4. Persediaan

4.1 Pemasangan Bateri

1. Pastikan meter dimatikan.
2. Cari penutup petak bateri di belakang meter.
3. Use a suitable screwdriver to open the cover.
4. Insert the battery, observing the correct polarity (+/-).
5. Gantikan penutup petak bateri dan kencangkannya dengan skru.

4.2 Menghidupkan/Mematikan

• To power on the meter, press the KUASA butang.
• To power off the meter, press and hold the KUASA button until the display turns off. The meter also features an auto power off function to conserve battery life.

5. Arahan Operasi

5.1 Measuring AC Leakage Current

1. Hidupkan meter.
2. Buka clamp rahang dengan menekan picu.
3. Carefully place the conductor (e.g., power cable) within the clamp jaw. Ensure the jaw is fully closed around the conductor. For accurate leakage current measurement, clamp around both the live and neutral conductors of a single-phase circuit, or all phase conductors of a multi-phase circuit.
4. Read the leakage current value displayed on the LCD screen.

Image: Clamp meter in use, measuring current.

5.2 Fungsi Pegangan Data

Untuk membekukan bacaan semasa pada paparan, tekan TAHAN button. Press it again to release the hold and resume live readings.

5.3 Peak Hold Function

The Peak Hold function captures and displays the maximum peak value of the measured current. Refer to the specific button on your device for activating this feature.

5.4 Penyimpanan Data

The meter can store up to 99 sets of measurement data. Consult the detailed manual for specific instructions on how to save and recall data sets using the device's interface.

5.5 RS-232 Data Transmission

The RS-232 interface allows for data transfer to a computer for further analysis or logging. Connect the meter to a computer using the provided RS-232 cable and use compatible software (not included) for data communication.

6. Penyelenggaraan

6.1 Pembersihan

Lap meter casing dengan iklanamp kain dan detergen lembut. Jangan gunakan bahan pelelas atau pelarut. Pastikan meter kering sebelum disimpan atau digunakan.

6.2 Penggantian Bateri

When the low battery indicator appears on the display, replace the battery promptly to ensure accurate measurements. Refer to section 4.1 for battery installation instructions.

6.3 Penyimpanan

When not in use for extended periods, remove the battery and store the meter in a cool, dry place, away from direct sunlight and extreme temperatures.

7. Penyelesaian masalah

• No Display/Meter Not Powering On: Check battery installation and ensure the battery has sufficient charge. Replace if necessary.
• "OL" Indication (Overload): The measured current exceeds the meter's maximum range. Remove the clamp from the conductor immediately to prevent damage.
• Bacaan Tidak Tepat: Pastikan clamp jaw is fully closed around a single conductor or a bundle of conductors for leakage measurement. Avoid external magnetic fields.
• Petunjuk Bateri Rendah: Replace the battery as soon as possible to maintain measurement accuracy.

8. Spesifikasi

Image: UNI-T UT251C model with key specifications.

Image: Comprehensive specifications for UT251 series.

9. Waranti dan Sokongan

The UNI-T UT251C Current Leakage Clamp Meter didatangkan dengan Waranti 1 tahun from the date of purchase. For warranty claims, technical support, or service inquiries, please contact your authorized UNI-T dealer or the manufacturer directly. Please retain your proof of purchase for warranty validation.