1. Pengenalan
This manual provides essential information for the safe and efficient use of the Velleman 139097 Print Transformer. This component is designed to convert AC voltage, providing a stable 2 x 12V output at 0.050A, suitable for integration into various electronic circuits and devices. Please read this manual thoroughly before installation and operation.

Imej 1: The Velleman 139097 Print Transformer. This image displays the compact design of the transformer, highlighting its primary and secondary winding terminals for easy identification during installation.
2. Arahan Keselamatan
Always observe the following safety precautions to prevent injury and damage to the transformer or connected equipment:
- Bahaya Elektrik: This device operates with electrical current. Ensure all power is disconnected before installation, wiring, or maintenance.
- Kakitangan Berkelayakan: Installation and wiring should only be performed by qualified personnel familiar with electrical safety standards.
- Betul Voltage: Sahkan bahawa input voltage matches the transformer's specifications to avoid damage.
- Perlindungan Lebihan: Do not exceed the specified output current (0.050A per 12V winding) to prevent overheating and potential failure.
- Pengudaraan: Ensure adequate ventilation around the transformer to dissipate heat.
- Keadaan Persekitaran: Do not expose the transformer to moisture, extreme temperatures, or corrosive environments.
- Penebat: Maintain proper insulation for all connections to prevent short circuits.
3. Spesifikasi
The following table details the technical specifications of the Velleman 139097 Print Transformer:
| Spesifikasi | Nilai |
|---|---|
| Jenama | Velleman |
| Model | 139097 |
| Pengeluar | Info Games |
| Nombor Bahagian Pengilang | 139097 |
| Sumber Kuasa | Kabel Elektrik |
| Nominal Secondary Voltage | 2 x 12 V |
| Nominal Secondary Current | 2 x 0.050 A |
| Jumlah Kuasa | 1.2 VA |
| Rintangan Penebat | > 5 MΩ / 500 VDC |
| Kekuatan Dielektrik | 5 min. kV |
| International Article Code (EAN) | 05410329259778 |
| ASIN | B00IMWGRL4 |
4. Persediaan dan Pemasangan
The Velleman 139097 Print Transformer is designed for PCB mounting. Follow these general steps for installation:
- Pemutusan Kuasa: Ensure that the main power supply to the circuit board is completely disconnected before beginning installation.
- Pemasangan: Carefully align the transformer's pins with the corresponding holes on the printed circuit board (PCB). Ensure the transformer is seated firmly.
- pematerian: Solder the transformer pins to the PCB pads. Use appropriate soldering techniques to ensure strong, reliable electrical and mechanical connections. Avoid excessive heat that could damage the transformer or PCB.
- Pendawaian Utama: Connect the primary winding terminals to the AC input voltage source, ensuring correct polarity if specified by your circuit design. Refer to the circuit diagram for your specific application.
- Pendawaian Sekunder: Connect the secondary winding terminals (2 x 12V) to the load circuit. The two 12V windings can be used independently, in series for 24V, or in parallel for higher current (ensure proper phasing for parallel connection).
- Pengesahan: After installation, visually inspect all connections for proper soldering, insulation, and absence of short circuits.
Nota: Always refer to the specific circuit diagram of your application for detailed wiring instructions.
5. Arahan Operasi
Once properly installed and wired, the Velleman 139097 Print Transformer operates automatically when power is applied to its primary winding.
- Hidupkan kuasa: Apply the specified AC input voltage to the primary winding.
- Keluaran Voltage: The transformer will provide 2 x 12V AC at its secondary windings. These outputs are suitable for powering low-power electronic circuits requiring isolated AC voltage.
- Pengurusan Beban: Ensure that the total current drawn from the secondary windings does not exceed 0.050A per 12V winding. Overloading can lead to overheating and damage.
- Pemantauan: Periodically check the transformer for unusual heat, noise, or odors, which may indicate a problem.
6. Penyelenggaraan
The Velleman 139097 Print Transformer is a passive component and requires minimal maintenance.
- Pembersihan: If necessary, gently clean the exterior of the transformer with a dry, soft cloth. Do not use liquids or abrasive cleaners.
- Pemeriksaan: Periodically inspect the transformer and its connections for any signs of physical damage, corrosion, or loose wiring.
- Pengudaraan: Ensure that the area around the transformer remains clear of obstructions to allow for proper airflow and heat dissipation.
Amaran: Sentiasa putuskan bekalan elektrik sebelum melakukan sebarang pemeriksaan atau pembersihan.
7. Penyelesaian masalah
If you encounter issues with your Velleman 139097 Print Transformer, consider the following troubleshooting steps:
- Tiada Keluaran Voltage:
- Check if the input power supply is active and providing the correct voltage to the primary winding.
- Verify all primary and secondary connections for proper soldering and continuity.
- Ensure there are no short circuits in the load connected to the secondary windings.
- Terlalu panas:
- Confirm that the load current does not exceed the transformer's rated output (0.050A per 12V winding).
- Check for adequate ventilation around the transformer.
- Ensure the ambient temperature is within the suitable operating range.
- Bunyi Luar Biasa:
- Loose mounting or components can cause vibration. Re-secure the transformer if necessary.
- Excessive load or faulty wiring can also cause humming. Review connections and load.
If the problem persists after performing these checks, it may indicate a faulty transformer or a more complex issue within your circuit. Consult a qualified technician.
8. Waranti dan Sokongan
Velleman products are manufactured to high-quality standards. For specific warranty information, please refer to the documentation provided with your purchase or visit the official Velleman webtapak.
For technical support or further assistance, please contact your local Velleman distributor or visit the Velleman support portal online. When contacting support, please have your product model number (139097) and any relevant purchase information ready.