1. Membuka Kemasan dan Mengenal Peralatan Secara Dasar

1.1 Spesifikasi Teknis Utama

1.2 Pemeriksaan dan Verifikasi Aksesori Saat Membuka Kemasan

1.2.1 Membuka Kemasan dan Pemeriksaan Visual

Saat membuka kemasan perangkat, tangani dengan hati-hati untuk menghindari goresan pada casing dengan alat tajam. Setelah membuka kemasan, periksa terlebih dahulu bagian luar perangkat untuk memastikan tidak ada deformasi atau penyok yang terlihat, dan tombol-tombolnya tidak rusak atau longgar.

Jika Anda melihat adanya kerusakan atau perubahan bentuk pada peralatan atau aksesori, jangan nyalakan daya. Segera hubungi kami.

1.2.2 Komputer Host dan Aksesoris

Main Units: ① EFT61000-4 EFT Immunity Measurement; ② EFT-DESK Standard Test Bench; ③ EFT-CLAMP Capacitive Coupling Clamp.

Gambar 1

Note: Items ② and ③ are optional.

The EFT-CLAMP Capacitive Coupling Clamp is used to test I/O lines.

Standard Accessories: ① Power cord; ② or ③ EUT power input cable (choose one);④ EUT power output, used to connect the EUT to the instrument’s front panel; ⑤ coaxial cable, used to connect to an external oscilloscope for waveform monitoring; ⑥ ground wire, used to connect to the PGND protective ground terminal; ⑦ discharge tube, used to check whether the instrument produces a pulse output in the event of a device malfunction.

Gambar 2

Tautan unduhan untuk manual pengguna digital, kartu garansi, dan dokumen lainnya telah dikirimkan kepada Anda melalui email. Silakan unduh sesegera mungkin. Jika Anda melewatkan email tersebut, jangan ragu untuk menghubungi kami untuk meminta tautan unduhan lagi.

2. Tindakan Pencegahan Keamanan

2.1 Pedoman Penempatan

Letakkan di permukaan kerja yang stabil; hindari memiringkan atau membalikkannya, dan jauhkan dari sumber getaran;

The equipment must be placed at least 1000 mm away from walls and surrounding structures (such as other testing equipment and shelving) to facilitate maintenance; at least 2000 mm of space must be left in front of the equipment to ensure smooth operation, and there must be no obstructions in the surrounding area.

2.2 Standar Keselamatan Tegangan Tinggi

2.2.1 Pemeriksaan Keamanan

Pastikan catu daya kompatibel dengan peralatan, pastikan catu daya terhubung ke ground dengan benar, dan periksa apakah kabel ground tidak rusak atau longgar;

Grounding Requirements: The host unit’s protective grounding terminal (PGND) must be connected to the ground reference plane; the grounding resistance must be ≤4 Ω; the grounding cable must be securely connected, with no looseness or breaks;

The ground reference plane must be connected to the grounding metal plate and to the ground; all ground connections must have low impedance to prevent potential differences from occurring during discharge.

2.2.2 Persyaratan Keselamatan untuk Prosedur Operasional

Operators must undergo professional training and be familiar with this manual and the relevant standards. Non-professionals are prohibited from operating or disassembling the equipment. The equipment contains high-voltage circuits; opening the cover may pose an electric shock hazard. Contact the manufacturer’s technical staff for repairs;

Once the equipment is powered on, do not touch the terminal blocks, cables, or the EUT;

Operators should ensure their hands are dry and free of metal jewelry; it is recommended that they wear insulated gloves while working;

Selama pengujian, personel yang tidak berwenang dilarang berada dalam jarak 1 meter dari EUT untuk mencegah sengatan listrik yang tidak disengaja atau gangguan dari pelepasan listrik;

Before replacing the electrodes, you must first ensure that the high-voltage output has been turned off (the HV indicator light is off) and wait at least 5 minutes to ensure that the internal high-voltage capacitor is completely discharged;

Jangan makan atau minum selama pengujian untuk mencegah kecelakaan akibat sengatan listrik;

Jika melibatkan beberapa orang, tetapkan peran dan tanggung jawab dengan jelas, dan konfirmasikan satu sama lain sebelum memulai pengujian untuk menghindari kesalahan.

2.3 Lainnya

Untuk hal-hal yang tidak tercakup dalam panduan ini, harap berhati-hati atau hubungi kami.

3. Persiapan Sebelum Ujian

3.1 Test Environment and Wiring for Power Cord Immunity Testing

3.1.1 Front of the Instrument

① Grounded metal plate, connected to ground via a conductor; ② Wooden test bench; ③ Grounded reference plane, connected to the grounded metal plate via a ground wire;④ Can be connected to the EUT; ⑤ Can be connected to the EUT; ⑥ Connect the protective ground terminal of the SGND signal line on the front panel of the instrument to the reference ground plane; ⑦ Insulated support; ⑧ EUT test specimen.

Gambar 3

The grounding reference plane must meet the following dimensions: thickness ≥ 0.25 mm; it must be large enough to accommodate the EUT, instruments, coupling devices, and all accessories; and it must extend 10 cm beyond the edges on all four sides.

The EUT must be placed on the grounded reference plane using an insulating support with a thickness of 10 cm, and the distance between the bottom of the EUT and the grounded reference plane must be strictly maintained at 10 cm.

The instrument (including the coupling network) shall be placed directly on the grounded reference plane, at a distance of ≥0.5 m from the EUT; the EUT shall be located at a distance of ≥0.5 m from conductive structures such as laboratory walls and anechoic chamber walls.

The length of the power and signal cables connecting the EUT to the test equipment shall be maintained at 0.5 m ± 0.05 m; if the EUT has a built-in, non-detachable cable longer than 0.5 m, the excess length shall be folded (avoiding the formation of a flat loop) and placed 10 cm above the ground reference plane.

3.1.2 Back of the Instrument

① Power cord; ② EUT power input cable—please connect the EUT to a suitable power source; ③ PGND protective ground terminal—please connect to a grounded metal plate.

Gambar 4

3.2 Test Environment and Wiring for IO Signal Line Immunity Testing

Place the Capacitive Coupling Clamp on the ground reference plane. ① Connect the ground terminal of the Capacitive Coupling Clamp to the ground reference plane; ② Connect the Capacitive Coupling Clamp to the BNC connector on the instrument’s front panel via a coaxial cable; ③ Route the I/O cable through the Capacitive Coupling Clamp.

Gambar 5

Route the EUT’s I/O cables through the capacitive coupling clamp, with one end of each cable connected to the EUT and the other to the AE (auxiliary) device. Place the EUT and the AE device on 10-cm-thick insulated supports, respectively.

Gambar 6

The distance between the AE equipment and the EUT must be ≥0.5 m, and its power cord must be connected to the power supply network via a decoupling network to prevent impulse interference from being conducted to auxiliary equipment.

3.3 Konfirmasi Parameter Uji

3.4 Pemanasan Peralatan dan Uji Mandiri

Turn on the power switch on the front panel of the host; the device enters standby mode, the power indicator lights up, and the cooling fan starts.

Tunggu 5 menit agar perangkat memanas, dan periksa apakah layar sentuh menampilkan gambar dengan normal dan tidak ada pesan kesalahan.

4. Pengantar Program Layar Sentuh

4.1 Layar Awal

① General Usage Notes (Features are still being developed; no action is required at this time); ② System Information Screen; ③ Switch Between Chinese and English; ④ EFT Test Screen.

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4.2 System Information Screen

Test Logs: View or export historical test logs.

Gambar 8

4.3 EFT Test Interface

① Test voltage and polarity settings; ② Test duration settings; ③ Pulse train period settings; ④ Pulse repetition frequency settings; ⑤ Phase angle settings; ⑥ Number of pulses settings; ⑦ Automatic coupling option, allowing you to select the required coupling lines all at once;⑧ Manual selection of coupling lines; single or multiple selections are possible; ⑨ Display of the EUT’s current electrical parameters; ⑩ Click to turn the EUT power on or off; ⑪ Click to start or stop the test.

Gambar 9

Note: Power port coupling: Select any combination of “L1,” “L2,” “L3,” “N,” and “PE”; Signal port coupling: Select “BNC”; Automatic coupling: Applies interference in the system’s preset order (L1 → L2 → L3 → N → PE → combination), suitable for comprehensive testing.

5. Fast Transient and Burst (FTB) Test

5.1 Prosedur Operasional

If the EUT requires power, close the EUT power input switch on the back of the device.

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Set all test parameters according to sections 3.3 and 4.3.

Click “EUT POWER” to turn on the EUT power supply.

Click “START” to begin the test.

5.2 Menentukan Apakah EUT Telah Lulus Uji

6. Prosedur Pasca-Ujian

6.1 Tes Dihentikan

If the EUT is visibly damaged during the test, immediately tap “Stop Test” on the touchscreen, then tap “EUT Power” to turn off the EUT’s power.

If no abnormalities occur during the test, wait for the pulse test to complete automatically, then click “EUT Power” to turn off the EUT’s power.

Turn off the EUT input power supply switch on the back of the unit.

Wait 5 minutes to ensure that the high-voltage capacitors inside the host unit have fully discharged, then replace the EUT for testing, or turn off the host unit’s power.

6.2 Pembersihan dan Penataan Pasca-Pengujian

Bersihkan area pengujian dan lap dengan kain kering; jangan gunakan alkohol atau bahan pembersih korosif.

Pulse testing is a destructive test; it does not automatically generate a test report, but the device automatically saves the test data. You can go to “System Information,” click “Test Log,” and export the corresponding test data to a USB flash drive via the USB port. The exported file is in TXT text format.

6.3 Penyimpanan Peralatan

6.3.1 Persyaratan Penyimpanan Jangka Pendek

Jika peralatan tersebut digunakan setiap hari, tidak diperlukan tindakan lebih lanjut setelah setiap pengujian selesai dan peralatan telah dibersihkan.

6.3.2 Persyaratan Penyimpanan Jangka Panjang

Jika perangkat tidak akan digunakan dalam jangka waktu lama (lebih dari satu bulan), harap lepaskan semua kabel dan tutupi perangkat dengan penutup debu untuk mencegah penumpukan debu.

Perangkat ini sebaiknya dinyalakan sekali sebulan selama setengah jam saja untuk mencegah penuaan komponen listrik (seperti kapasitor dan kontaktor).

7. Pemecahan Masalah dan Penyelesaian Masalah Umum

7.1 Perangkat tidak mau menyala

Gejala: Setelah menyalakan sakelar daya, perangkat tidak merespons (lampu indikator tidak menyala, dan kipas tidak berputar).

Kemungkinan penyebabnya: ① ​​Kabel daya tidak terhubung dengan benar atau rusak; ② Tegangan suplai tidak normal; ③ Sekring putus; ④ Varistor (MOV) terbakar.

Solution: Ensure the power cord is intact and securely connected. Power supply issues—such as unstable voltage, excessively high voltage, or harmonic interference—can cause the fuse or varistor to burn out. We recommend using a regulated, clean sine-wave AC power supply to power the device. Replace the fuse or varistor with one of the same type.

Gambar di bawah ini menunjukkan lokasi sekering:

Gambar 39

Gambar berikut menunjukkan lokasi varistor (MOV) di dalam catu daya yang telah difilter:

Gambar 40

7.2 Restart Perangkat Otomatis

Symptom: The device automatically restarts during pulse output.

Kemungkinan penyebab: Kabel ground tidak terhubung dengan benar.

Solution: Refer to Section 2.2.1. Connect the PGND grounding terminal on the back of the host to ground, and ensure that the grounding resistance is ≤4Ω. Otherwise, high voltage may not be safely dissipated, causing the device to automatically restart.

7.3 Pulse Phase Angle Test Failed

Symptom: The synchronization phase angle has been set, but the pulse test is not being performed according to the corresponding phase angle.

Kemungkinan penyebab: Catu daya EUT tidak dinyalakan.

Procedure: The EUT must be powered by an AC source, and the EUT must be turned on during testing so that the pulse generator can detect the EUT’s power supply waveform and perform pulse testing according to the set phase angle.