1. Pengenalan
This manual provides detailed instructions for the installation, programming, and operation of your Intermatic ET1725C Electronic 7-Day SPST Timer. This device is designed to automate the control of electrical loads with precise, up-to-the-minute scheduling. It features battery backup for power loss, up to 14 ON/OFF set points per circuit, and automatic daylight saving time corrections.
The ET1725C is an upgrade from basic mechanical time switches, offering enhanced functionality and ease of use. Its contacts can be configured as two independently operated SPST, one simultaneously operated DPST, or independently pulsed SPST for contactor and bell ringing applications. It supports multi-volt operation from 120-277 VAC, 50/60 Hz.
2. Maklumat Keselamatan
AMARAN: Risk of electrical shock. More than one disconnect switch may be required to de-energize the equipment before servicing. Always disconnect power at the circuit breaker or fuse box before installing or servicing this timer.
Use 10-18 gauge copper conductors rated for at least 75°C (167°F) for all connections.
DO NOT REMOVE THIS INSULATOR. This insulator is critical for safe operation.
Produk ini mengandungi bahan kimia yang diketahui oleh Negeri California untuk menyebabkan kanser dan kecacatan kelahiran atau bahaya pembiakan lain (amaran Proposisi 65).
Rajah 2.1: Dalaman view of the Intermatic ET1725C timer, highlighting wiring terminals and critical safety warnings printed on the device. This image shows the LCD display, control buttons, battery compartment, and the terminal block with labels for Timer Power, Line 1, Load 1, Line 2, and Load 2. A prominent yellow label warns about electrical shock and conductor requirements.
3. Pemasangan
3.1 Pemasangan
The Intermatic ET1725C timer is designed for enclosure mounting. Ensure the mounting location is suitable for electrical equipment and provides adequate ventilation.
Rajah 3.1: The closed gray enclosure of the Intermatic ET1725C timer, showing its robust design suitable for various installation environments. The Intermatic logo is embossed on the front.
3.2 Pendawaian
Before wiring, ensure all power to the circuit is disconnected at the main service panel. Refer to the wiring diagrams below for proper connection based on your specific application. The ET1725C supports various configurations including SPST and DPST.
Rajah 3.2: Comprehensive wiring diagrams for the Intermatic ET1700 series, including configurations for ET1705-120 VAC-SPST, ET1715-SPDT (load switching), ET1725-240 VAC-DPST, ET1725-2x SPST, ET1725-2x SPST (bell ringing), and ET1725-Pulse 2x SPST (bell ringing). These diagrams illustrate connections for Timer Power, Line, Neutral, and Load terminals.
- ET1705-120 VAC-SPST: Connect Line and Neutral to Timer Power. Connect Line to terminal 1 and Load to terminal 2. Install jumper between terminals 3 and 4 if load voltage dan input voltage adalah sama.
- ET1715-SPDT (Load Switching): Similar to ET1705, but with additional load connections for switching.
- ET1725-240 VAC-DPST: Connect L1 and L2 to Timer Power. Connect L1 to terminal 1 and L2 to terminal 3. Connect Load to terminals 2 and 4. Configure jumper to "SIM" for simultaneous operation.
- ET1725-2x SPST: For two independent SPST loads. Connect L1/Neutral to Timer Power. Connect L1 to terminal 1 and L2/Neutral to terminal 3. Connect Load 1 to terminal 2 and Load 2 to terminal 4.
- ET1725-Pulse 2x SPST (Bell Ringing): For pulsed applications. Configure jumper to "PUL".
4. Setup & Programming
The ET1725C allows for flexible programming with up to 14 ON/OFF set points per circuit. The timer automatically adjusts for daylight saving time.
Rajah 4.1: The Intermatic ET1725C timer with its front panel open, revealing the LCD display, programming buttons (MODE, DAY, RESET, ENTER NEXT, ON/OFF), and the battery compartment. An instruction sheet is partially visible, indicating the comprehensive nature of the product's documentation.
4.1 Persediaan Awal
- Hidupkan kuasa: After installation and power connection, the display should illuminate.
- Tetapkan Masa Semasa:
- Tekan ke MODE button until "SET TIME" appears.
- Gunakan UP dan TURUN arrows to adjust the hour and minute.
- Tekan ENTER NEXT untuk mengesahkan.
- Tetapkan Hari Semasa:
- Tekan ke HARI button to cycle through the days of the week until the current day is displayed.
- Waktu Penjimatan Siang (DST): The timer automatically corrects for DST. Ensure the correct year is set if prompted during initial setup.
4.2 Pengaturcaraan Peristiwa HIDUP/MATI
The timer allows for up to 14 ON/OFF set points per circuit. Each set point can be assigned to specific days of the week.
- Tekan ke MODE button until "PROGRAM" appears.
- The display will show "ON 1". Use the UP dan TURUN arrows to set the desired ON time for the first event.
- Tekan ENTER NEXT.
- The display will show "OFF 1". Use the UP dan TURUN arrows to set the desired OFF time for the first event.
- Tekan ENTER NEXT.
- The display will show the days of the week. Use the HARI button to select the days for this program. You can select individual days, weekdays, weekends, or all days.
- Tekan ENTER NEXT untuk menyimpan program.
- Repeat steps 2-7 for additional ON/OFF events (ON 2, OFF 2, etc.).
- Untuk keluar dari mod pengaturcaraan, tekan butang MODE butang sehingga waktu semasa dipaparkan.
4.3 Pembatalan Manual
The timer can be manually overridden using the HIDUP/MATI buttons. Pressing these buttons will toggle the load's state (ON or OFF) without affecting the programmed schedule. The timer will revert to the schedule at the next programmed event.
5. Operasi
Once programmed, the Intermatic ET1725C will operate automatically according to your set schedule. The LCD display shows the current time, day, and the status of Load 1 and Load 2 (ON/OFF).
- Operasi automatik: The timer will activate and deactivate connected loads based on the programmed ON/OFF events.
- Maklumat Paparan: The display provides real-time information on the current time, day, and the operational status of the connected loads.
- Bateri tambahan: Sekiranya berlaku kuasa outage, the internal battery backup maintains the time and programmed settings. The display may not be active during a power outage to conserve battery life.
6. Penyelenggaraan
6.1 Penggantian Bateri
The ET1725C uses a replaceable battery for backup power. If the display becomes dim or the timer loses settings during a power outage, bateri mungkin perlu diganti.
- AMARAN: Disconnect all power to the timer at the circuit breaker before opening the unit.
- Buka penutup pemasa.
- Cari petak bateri.
- Carefully remove the old battery and replace it with a new, equivalent battery (e.g., standard AAA non-rechargeable alkaline battery).
- Close the battery compartment and the timer enclosure.
- Restore power and verify the timer's functionality.
6.2 Pembersihan
Clean the exterior of the timer with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure no moisture enters the unit.
7. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Paparan pemasa kosong. | No power to the unit or dead backup battery. | Check circuit breaker. Ensure proper wiring. Replace backup battery. |
| Beban tidak HIDUP/MATI pada waktu yang diprogramkan. | Incorrect programming, manual override active, or wiring issue. | Review programming steps. Check if manual override is active. Verify wiring connections. |
| Masa atau tetapan hilang selepas kuasa dimatikantage. | Backup battery is weak or dead. | Gantikan bateri sandaran. |
| Display is difficult to read. | Poor lighting conditions or small LCD. | Ensure adequate lighting. This is a known characteristic of some LCDs. |
8. Spesifikasi
- model: ET1725C
- Jenama: Intermatik
- Jenis: Electronic 7-Day Timer
- Gaya Tukar: SPST/DPST (field configurable)
- Voltage: 120-277 VAC, 50/60 Hz (Multi-volt operation)
- Bilangan Tetapan: Up to 14 ON/OFF set points per circuit (28 total)
- Suhu Operasi: -40°F hingga 155°F (-40°C hingga 68°C)
- Bahan: Kepungan logam
- warna: Kelabu
- Dimensi Produk: 3.3"D x 8.1"W x 5.3"H
- Berat Barang: 2.8 paun
- Jenis Pemasangan: Kepungan
- Komponen yang Disertakan: Unit, Panduan Arahan
- Jenis Bateri: Alkaline (for backup, not included)
- UPC: 094705211373, 784497620063, 078275109865
9. Waranti & Sokongan
9.1 Maklumat Waranti
The Intermatic ET1725C Electronic Timer comes with a 1-year warranty. This warranty covers replacement of the unit due to manufacturing defects but does not cover labor costs associated with removal or reinstallation. Please retain your proof of purchase for warranty claims.
9.2 Sokongan Pelanggan
Untuk bantuan teknikal, penyelesaian masalah atau pertanyaan jaminan, sila hubungi sokongan pelanggan Intermatic. Rujuk khidmat pelanggan rasmi Intermatic. website or the included instruction guide for current contact information.
