1. Pengenalan
This manual provides comprehensive instructions for the installation, setup, operation, and maintenance of the Intermatic ET1705C 7-Day Electronic Time Switch. The ET1705C is designed for precise control of electrical loads, offering flexible programming with up to 28 events and automatic Daylight Saving Time adjustment. Please read this manual thoroughly before installation and operation to ensure safe and correct usage.
2. Maklumat Keselamatan
WARNING: Risk of Electrical Shock. Disconnect power at the circuit breaker or fuse box before installing or servicing this device. Installation should be performed by a qualified electrician in accordance with all national and local electrical codes.
- Always ensure the power supply is disconnected before working on electrical connections.
- Use 10-16 gauge copper conductors rated for at least 75°C (167°F) for all connections.
- Do not remove the insulator.
- This device is intended for indoor use or in an appropriate outdoor enclosure.

Figure 1: Intermatic ET1705C Time Switch with cover open, displaying internal components, control buttons, LCD screen, and safety warnings. Note the voltage selector and wiring terminals.
3. Kandungan Pakej
Sahkan bahawa semua komponen hadir sebelum memulakan pemasangan:
- Intermatic ET1705C 7-Day Electronic Time Switch
- Manual Arahan (dokumen ini)
- Two (2) AAA Alkaline Batteries (pre-installed or included)
4. Produk Lebihview dan Ciri
The Intermatic ET1705C is an advanced electronic time switch designed for reliable and precise control of various electrical applications. Key features include:
- Voltage Fleksibiliti: Features a selector switch for easy voltage adjustment between 120-277 VAC, 50/60 Hz, ensuring compatibility with a wide range of electrical systems.
- Extensive Programming: Allows for up to 28 events (14 ON/14 OFF per channel), providing versatile scheduling options for interior/exterior lighting, pumps, and motor control.
- Precision Timing: Offers to-the-minute accuracy for all programmed events, ensuring reliable performance.
- Flexible Override Options: Provides both temporary and permanent manual override capabilities.
- Automatic Daylight Saving Time Adjustment: Automatically adjusts for Daylight Saving Time changes, eliminating manual intervention.
- Bateri tambahan: Two industrial grade "AAA" Alkaline batteries provide a minimum of 3 years program and timing protection during power outages.

Rajah 2: Depan view of the Intermatic ET1705C Time Switch with its protective cover closed, showing the gray enclosure.
5. Pemasangan
Penting: Installation must be performed by a qualified electrician and comply with all applicable electrical codes. Ensure power is disconnected before proceeding.
- Pemasangan: Securely mount the time switch enclosure to a wall or suitable surface using appropriate fasteners. Ensure the location is protected from moisture if not rated for outdoor exposure.
- Voltage Pemilihan: Open the front cover. Locate the voltage selector switch inside the unit. Before connecting power, set the selector to the correct voltage (120V, 208V, 240V, or 277V) matching your electrical system. Refer to Figure 3 for the location of the voltagpemilih e.
- Pendawaian:
- Route power supply wires into the enclosure through designated knockouts.
- Connect the Line (L1, L2 if applicable) and Load wires to the appropriate terminals as indicated on the wiring diagram (Figure 4).
- Ensure all connections are tight and secure. Use 10-16 gauge copper conductors.
- Refer to the specific wiring diagram in Figure 4 that matches your application (e.g., 120 VAC SPST, 240 VAC DPST).
- Battery Installation/Check: The unit typically comes with AAA batteries pre-installed. Verify they are correctly seated. These batteries maintain programming during power outages.
- Tutup Penutup: Once wiring is complete and verified, close and secure the front cover.
- Pulihkan Kuasa: Restore power at the circuit breaker. The unit should power on.

Gambar 3: Dalaman view of the Intermatic ET1705C Time Switch, highlighting the voltage selector mechanism and wiring terminals. The safety warnings are also visible.

Figure 4: Detailed wiring diagrams for the Intermatic ET1700 Series, illustrating connections for different voltage and load types. Consult the diagram relevant to your specific model and application.
6. Persediaan Awal
After power is restored, the unit will display the current time and date. If the display is blank or incorrect, follow these steps:
- Tetapkan Masa dan Hari Semasa:
- Tekan ke MODE button until "SET TIME" appears.
- Gunakan + dan - butang untuk melaraskan jam, kemudian tekan MASUK/SETERUSNYA.
- Adjust minutes, then press MASUK/SETERUSNYA.
- Adjust the current day of the week, then press MASUK/SETERUSNYA.
- Set Current Date:
- Tekan ke MODE button until "SET DATE" appears.
- Gunakan + dan - buttons to adjust the year, then press MASUK/SETERUSNYA.
- Adjust the month, then press MASUK/SETERUSNYA.
- Adjust the day, then press MASUK/SETERUSNYA.
- Pelarasan Waktu Penjimatan Siang (DST): The ET1705C automatically adjusts for DST. Ensure the DST setting is enabled (usually a default setting). Consult the on-screen prompts or the full manual for specific DST configuration if needed.
7. Pengendalian dan Pengaturcaraan
The ET1705C allows for up to 28 ON/OFF events (14 ON and 14 OFF) to be programmed across the 7 days of the week.
- Memasuki Mod Program: Tekan ke MODE button repeatedly until "PROGRAM" appears on the display.
- Setting ON Events:
- The display will show "1 ON". Use + dan - buttons to set the desired ON time (hour and minute). Press MASUK/SETERUSNYA selepas setiap pelarasan.
- Next, select the day(s) of the week for this ON event. You can select individual days or blocks of days (e.g., Mon-Fri, Sat-Sun, Mon-Sun). Press HARI to cycle through day options. Press MASUK/SETERUSNYA untuk mengesahkan.
- Setting OFF Events:
- After setting an ON event, the display will automatically move to "1 OFF". Set the desired OFF time and day(s) using the same method as for ON events.
- Repeat this process for all desired ON/OFF events (up to 14 pairs).
- ReviewProgram: In PROGRAM mode, use MASUK/SETERUSNYA to cycle through all programmed events.
- Clearing Programs: To clear a specific event, navigate to it in PROGRAM mode and press CLEAR ENTRY. To clear all programs, press and hold CLEAR MEM.
- Pembatalan Manual:
- Override Sementara: Tekan ke HIDUP/MATI button to manually switch the load ON or OFF. This override remains active until the next programmed event.
- Permanent Override: Tekan dan tahan butang HIDUP/MATI button for a few seconds. The display will indicate a permanent override, and the unit will remain in that state until manually changed or the override is cancelled.
- Exiting Program Mode: Tekan ke MODE button until the current time and day are displayed, indicating normal operation.
8. Penyelenggaraan
- Penggantian Bateri: The ET1705C uses two (2) AAA Alkaline batteries for program backup. These batteries typically last for 3 years. When the battery indicator appears on the display, replace the batteries promptly to avoid loss of programming.
- Disconnect power to the unit at the circuit breaker.
- Buka penutup hadapan.
- Carefully remove the old AAA batteries and insert new ones, observing correct polarity.
- Tutup penutup dan pulihkan kuasa.
- Pembersihan: Bersihkan bahagian luar unit dengan lembut, damp kain. Jangan gunakan pembersih atau pelarut yang kasar. Pastikan tiada kelembapan memasuki komponen dalaman.
9. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Paparan kosong. | No power to the unit; dead batteries. | Check circuit breaker. Replace AAA batteries. |
| Beban tidak HIDUP/MATI pada waktu yang diprogramkan. | Incorrect programming; manual override active; incorrect wiring. | Review programming. Cancel manual override. Verify wiring connections (consult a qualified electrician). |
| Masa/Tarikh tidak betul selepas kuasa dimatikantage. | Dead or missing backup batteries. | Replace AAA batteries. Reset time and date. |
| Unit does not respond to button presses. | Unit beku; bateri lemah. | Press the RESET button (small recessed button). Replace batteries if low. |
10. Spesifikasi
- model: ET1705C
- Voltage: 120-277 VAC, 50/60 Hz (selectable)
- Gaya Tukar: SPST (Balingan Tunggal Kutub Tunggal)
- Number of Events: Up to 28 (14 ON / 14 OFF)
- Bateri tambahan: Two (2) AAA Alkaline batteries (3-year minimum program retention)
- Suhu Operasi: -40°F hingga 150°F (-40°C hingga 65°C)
- Dimensi: Kira-kira 3.3"D x 5.3"W x 8.1"H
- Berat: Kira-kira 2.5 paun
- Jenis Pemasangan: Kepungan
- Bahan: Pemilih
- UPC: 078275109841
11. Waranti dan Sokongan
Waranti: This Intermatic ET1705C Time Switch comes with a 1-year limited warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from improper installation, misuse, abuse, or unauthorized modifications.
Sokongan Pelanggan: For technical assistance, troubleshooting, or warranty claims, please contact Intermatic Customer Service. Refer to the official Intermatic webtapak untuk maklumat hubungan semasa.





