1. Pengenalan dan Lebihview
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of the SINOTIMER Adjustable Voltage Protector (Model SVP-916 40A). This device is designed to protect single-phase electrical equipment in residential AC120V systems from over-voltage, bawah-voltage, and over-current conditions.
Ciri-ciri Utama:
- Pemulihan Automatik: The protector automatically restores power when circuit voltage and current return to normal, safeguarding connected equipment.
- Paparan LED Dwi: Real-time display of measured voltage and current for continuous monitoring.
- Parameter Perlindungan Boleh Laras: Overvoltage, undervoltage, overcurrent thresholds, and fault recovery delay times are fully adjustable to suit specific requirements.
- Perlindungan Komprehensif: Provides protection against over-voltage, bawah-voltage, and over-current issues for residential household box entry or distribution lines.
- Economical Load Capacity: Available in various resistive load capacities, including 40A, suitable for typical residential applications.
2. Langkah-langkah Keselamatan
WARNING: Electrical shock hazard. Installation and maintenance should only be performed by qualified personnel. Disconnect power before installation or servicing.
- Ensure the main power supply is disconnected before attempting any installation or wiring.
- Verify that the protector's current rating matches or exceeds the expected load.
- The neutral line (N) of the protector is directly connected and does not have a disconnection function. Ensure proper wiring according to local electrical codes.
- Jangan kendalikan peranti jika ia kelihatan rosak.
3. Persediaan dan Pemasangan
3.1 Dimensi Produk
Before installation, verify the physical dimensions of the protector to ensure it fits within your electrical panel or enclosure.

Imej 3.1: Depan dan sisi view of the SINOTIMER Adjustable Voltage Protector with key dimensions indicated. The device measures 85mm in height, 35mm in width, and 65mm in depth (including the DIN rail clip), designed for compact installation.
3.2 Pemasangan
The SINOTIMER SVP-916 is designed for surface mounting, typically on a DIN rail within an electrical distribution box. Ensure a secure and stable mounting location.
3.3 Sambungan Pendawaian
Follow the wiring diagram carefully. Incorrect wiring can lead to device malfunction or electrical hazards. The protector has clearly marked "IN" (Input) and "OUT" (Output) terminals for Line (L) and Neutral (N).

Imej 3.2: Wiring diagram illustrating the connection of the SINOTIMER Adjustable Voltage Protector (SVP-916) within an electrical circuit. It shows the protector connected between a power switch and an air circuit breaker, with clear indications for Line (L) and Neutral (N) inputs and outputs.
- Connect the incoming Line (L) and Neutral (N) wires from your power source to the "IN" terminals of the protector.
- Connect the outgoing Line (L) and Neutral (N) wires from the "OUT" terminals of the protector to your load (e.g., distribution panel, circuit breaker).
- Pastikan semua sambungan adalah ketat dan selamat untuk mengelakkan sentuhan longgar dan terlalu panas.
3.4 Kuasa Permulaan
After wiring, restore power to the circuit. The protector's LED displays should illuminate, showing the current voltage and current readings. The device will perform a self-check and then enter normal operating mode.
4. Operasi
4.1 Paparan LED
The SVP-916 features two LED displays for real-time monitoring:

Imej 4.1: The SINOTIMER Adjustable Voltage Protector displaying voltage (red LED) and current (green LED) readings. The control buttons (SET, Up, Down) are visible below the displays.
- Upper (Red) Display: Shows the measured voltage (V).
- Lower (Green) Display: Shows the measured current (A).
- Lampu Penunjuk: Small LEDs indicate Overvoltage (OV: fast blink), Undervoltage (UV: slow blink), and Overcurrent (OC: fast blink).
4.2 Tetapan Boleh Laras
The protector allows adjustment of various parameters to customize protection levels. Use the SET, ▲ (Up), and ▼ (Down) buttons to navigate and modify settings.
- Overvoltage Protection Value (OV): Sets the maximum allowable voltage.
- Undervoltage Protection Value (UV): Sets the minimum allowable voltage.
- Overcurrent Protection Value (OC): Sets the maximum allowable current.
- Fault Recovery Delay Time (t-on): Sets the delay before the device automatically reconnects after a fault clears.
- Undervoltage Breaking Time (t-off): Sets the delay before the device trips on undervoltage. Note: If this time is greater than 0.3 seconds, the protector may not open immediately after a power failure.
4.3 Setting Adjustment Procedure
- Tekan dan tahan butang SET button for a few seconds to enter the setting mode.
- Gunakan SET button to cycle through the different parameters (OV, UV, OC, t-on, t-off).
- Gunakan ▲ (Naik) dan ▼ (Down) buttons to adjust the value of the selected parameter.
- Once all desired settings are configured, wait for a few seconds without pressing any buttons. The device will automatically save the settings and exit the setting mode.
5. Penyelenggaraan
The SINOTIMER Voltage Protector is designed for long-term, reliable operation with minimal maintenance. However, periodic checks can help ensure optimal performance.
- Pembersihan: Keep the device clean and free from dust and debris. Use a soft, dry cloth for cleaning. Do not use liquid cleaners.
- Semakan Sambungan: Periksa sambungan pendawaian secara berkala untuk memastikan ia kekal ketat dan bebas daripada kakisan.
- Keadaan Persekitaran: Pastikan persekitaran operasi kekal dalam julat suhu dan kelembapan yang ditetapkan untuk mengelakkan kerosakan.
- Ujian Kefungsian: If possible and safe to do so, periodically test the protection functions by simulating an over-voltage atau bawah voltage condition (e.g., using a variable power supply, if available and safe).
6. Penyelesaian masalah
This section addresses common issues you might encounter with the SINOTIMER Voltage Pelindung.
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| No display/No power output. | Tiada kuasa input; pendawaian salah; kerosakan dalaman. | Verify input power supply. Check wiring connections (L and N). If power is present and wiring is correct, the device may be faulty. |
| Peranti kerap tersandung. | Voltage/current fluctuations exceeding set limits; incorrect settings; overloaded circuit. | Check actual voltage/current readings. Adjust OV/UV/OC settings if necessary, ensuring they are appropriate for your system. Reduce load if circuit is overloaded. |
| Does not automatically reconnect. | Fault condition still present; t-on delay set too long; internal fault. | Ensure the fault condition (over/under voltage/current) has cleared. Check the t-on (recovery delay) setting. If the fault has cleared and delay is appropriate, device may require manual reset (power cycle) or be faulty. |
| vol. tidak tepattagbacaan semasa/e. | Loose connections; device malfunction. | Check all wiring connections for tightness. Compare readings with a calibrated multimeter. If readings are consistently off, the device may be faulty. |
| Undervoltage trip delay issue. | t-off setting is too high (greater than 0.3 seconds). | Adjust the t-off setting to a value less than or equal to 0.3 seconds if immediate disconnection upon undervoltage is desired. |
7. Spesifikasi Teknikal
| Spesifikasi | Nilai |
|---|---|
| Jenama | SINOTIMER |
| Model | SVP-916 (40A variant) |
| Gegelung Voltage | 120 Volt (AC) |
| Penilaian Semasa | 40 Amps (Beban Rintangan) |
| Mod Operasi | Automatik |
| Jenis Penyambung | Terminal Skru |
| Bahan Kenalan | Perak |
| Jenis Kenalan | Biasa Terbuka |
| Jenis Pemasangan | Surface Mount (DIN Rail compatible) |
| Dimensi Produk (L x W x H) | 3.39 x 1.42 x 2.64 inci (lebih kurang 86 x 36 x 67 mm) |
| Berat Barang | 6.3 auns (lebih kurang 178.6 gram) |
| Tarikh Mula-mula Tersedia | 2 Januari 2025 |
8. Waranti dan Sokongan
For warranty information and technical support, please contact the manufacturer directly. Refer to the product packaging or the official SINOTIMER webtapak untuk butiran hubungan terkini.
Pengeluar: SINOTIMER
Kedai atas talian: Visit the SINOTIMER Store on Amazon
9. Video Produk Rasmi
No official product videos from the seller were found with embeddable URLs in the provided data. Please refer to the product page on Amazon for any available video content.





