Directed Electronics Inc 528T 12V Accessory Pulse Timer User Manual

pengenalan

The Directed Electronics Inc 528T is a versatile 12-volt accessory pulse timer designed for automotive and other low-voltage applications. It features an adjustable delay from 0 to 60 seconds and can be triggered by either a positive or negative pulse, or a state change. This manual provides essential information for proper installation, operation, and maintenance of your 528T unit.

Maklumat Keselamatan

• Sentiasa putuskan sambungan bateri kenderaan sebelum memulakan sebarang pemasangan elektrik.
• Pastikan semua sambungan pendawaian selamat dan terlindung dengan betul untuk mengelakkan litar pintas.
• This device operates on a 12V DC system. Do not connect to higher voltagsumber e.
• Installation should ideally be performed by a qualified professional or individuals with experience in automotive electrical systems.
• Lindungi unit daripada kelembapan dan suhu yang melampau.

Produk Selesaiview

The 528T unit consists of a compact electronic module with multiple color-coded wires for various connections and an adjustable potentiometer for setting the delay time.

Image: Directed 528T Pulse Timer showing the clear casing, internal circuit board, and various colored wires extending from the unit.

Imej: Atas ke bawah view of the Directed 528T Pulse Timer, highlighting the compact design and the bundle of wires.

Komponen

• Unit Utama: Enclosed circuit board with a potentiometer for time adjustment.
• Pendawaian abah-abah: Multiple color-coded wires for power, trigger, and relay output.
• Blue Wire Loop: Used to select the trigger input type (positive or negative).

Spesifikasi

Persediaan dan Pemasangan

Proper installation of the 528T unit requires a basic understanding of automotive electrical systems. Refer to your vehicle's wiring diagrams as needed.

Gambarajah Pendawaian dan Sambungan

The 528T unit features several color-coded wires. Identify each wire's function before making connections.

• Kawat Merah: 12V Constant Power Input. Connect this to a fused 12V constant power source.
• Kawat Hitam: Ground Input. Connect this to a reliable chassis ground.
• Black/White Stripe Wire: Trigger Input (Negative). This wire is used for negative pulse or state change triggers.
• Kawat kuning: Trigger Input (Positive). This wire is used for positive pulse or state change triggers.
• Kawat Jingga: Relay Output (Normally Open - NO). This terminal connects to the device you want to power after the delay.
• Kawat coklat: Relay Output (Normally Closed - NC). This terminal connects to the device you want to power until the delay activates.
• Blue Wire Loop: Trigger Selection.

Trigger Type Selection

The 528T can be configured for either positive or negative triggering using the blue wire loop.

• For Negative (Ground) Trigger: Leave the blue wire loop utuh. The unit will trigger when the Black/White wire receives a negative pulse or goes to ground.
• For Positive (12V) Trigger: potong the blue wire loop. The unit will trigger when the Yellow wire receives a positive pulse or 12V.

Prosedur Sambungan

1. Sambungan Kuasa: Sambungkan merah wire to a fused 12V constant power source and the Hitam wire to a solid chassis ground.
2. Sambungan Pencetus: Based on your desired trigger type, connect either the Hitam/Putih wire (for negative trigger, blue loop intact) or the kuning wire (for positive trigger, blue loop cut) to your trigger source. The unused trigger wire should be insulated.
3. Muatkan Sambungan: Connect the device you wish to control to the appropriate relay output wire.
   • Gunakan Jingga wire for a Normally Open (NO) connection. This means the circuit is open (off) until the timer activates, then it closes (on) for the set duration.
   • Gunakan coklat wire for a Normally Closed (NC) connection. This means the circuit is closed (on) until the timer activates, then it opens (off) for the set duration.
4. Penebat: Ensure all connections are properly soldered or crimped and insulated with electrical tape or heat shrink tubing.
5. Pemasangan: Mount the 528T unit in a dry, secure location away from excessive heat or vibration.

Arahan Operasi

Adjusting the Timer Delay

The 528T features an adjustable potentiometer (a small dial or screw) on the unit's circuit board. This allows you to set the delay time from approximately 0 to 60 seconds.

• Use a small screwdriver to carefully turn the potentiometer.
• Turning clockwise typically increases the delay time.
• Turning counter-clockwise typically decreases the delay time.
• Test the delay after each adjustment to ensure it meets your requirements.

Pengaktifan Pemasa

Once installed and configured, the timer activates upon receiving the specified trigger signal (positive or negative, depending on the blue loop setting).

• When triggered, the internal relay will switch its state (NO to closed, NC to open) for the duration set by the potentiometer.
• The timer will re-initiate if a new trigger signal is received while it is already timing, or if the trigger state changes.

Penyelenggaraan

• Pemeriksaan Berkala: Periksa semua sambungan pendawaian secara berkala untuk kelonggaran atau kakisan.
• Perlindungan Alam Sekitar: Ensure the unit remains protected from water, dust, and extreme temperatures. If installed in an exposed area, consider adding a protective enclosure.
• Pembersihan: If necessary, gently clean the exterior of the unit with a dry, soft cloth. Do not use harsh chemicals or solvents.

Menyelesaikan masalah

Unit Does Not Activate

• Semak Kuasa: Verify that the Red wire has a constant 12V supply and the Black wire has a solid ground connection.
• Check Trigger: Ensure the correct trigger wire (Black/White for negative, Yellow for positive) is connected and receiving the appropriate signal. Confirm the blue loop is correctly configured for your trigger type.
• Sahkan Beban: Ensure the device connected to the Orange or Brown wire is functioning correctly and its wiring is secure.

Incorrect Delay Time

• Adjust Potentiometer: Carefully adjust the potentiometer on the unit. It may require fine-tuning.
• Test Repeatedly: Some units may exhibit slight variations in timing with rapid, repeated triggers. Test the delay under typical operating conditions.

Relay Not Switching

• Check Load Current: Ensure the connected load does not exceed the 30A rating of the internal relay. Overloading can damage the relay. Consider using an external relay for higher current applications.
• Kerosakan Dalaman: If all other checks pass, the internal relay or circuit may be faulty.

Waranti dan Sokongan

Specific warranty information for the Directed Electronics Inc 528T is not provided in this manual. Please refer to the product packaging or contact Directed Electronics Inc directly for warranty details and technical support.

For further assistance, it is recommended to consult with an authorized Directed Electronics dealer or a qualified automotive electronics technician.