Introduction
The Intermatic DT620CL is a versatile 15 Amp Indoor Astronomic Digital Timer designed to automate the control of lights and appliances. It features easy setup and operation, automatically adjusting to sunrise/sunset times for dusk/dawn settings. This manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of your DT620CL timer.
Key Features
- Turns lights and appliances on and off automatically.
- Easy setup and operation.
- Auto-adjusts to sunrise/sunset time for dusk/dawn settings.
- Automatic Daylight Saving Time option.
- Variable ON/OFF setting option for added security.
- Up to 28 ON/OFF settings.
- Convenient on/off indicator light.
- Sunrise, sunset, daily, weekday, weekend programming options.
- Battery backup with low battery indicator for settings retention.
- Large, easy-to-read display.
- Displays current date and time.
- Two timed, grounded receptacles.
Product Overview
Figure 1: Front view of the Intermatic DT620CL Digital Timer. It features a large LCD display showing time, day of the week, and various mode indicators. Below the display are four control buttons: OK, MODE, PROG, and ON/OFF. On the lower right, the Intermatic logo is visible, and on the left side, two grounded electrical receptacles are integrated into the unit's housing.
Display Indicators:
- Time Display: Shows current time (e.g., 12:00 PM).
- Day of Week: Indicates current day (MO, TU, WE, TH, FR, SA, SU).
- DUSK/DAWN: Indicates astronomic setting is active.
- MAN: Manual mode.
- AUTO: Automatic programmed mode.
- RAND: Random mode for security.
- DATE/YEAR: Indicates date and year display.
- Battery Indicator: Shows low battery status for backup.
Control Buttons:
- OK: Confirms selections and settings.
- MODE: Cycles through different operating modes (e.g., Manual, Auto, Random).
- PROG: Enters programming mode to set ON/OFF times.
- ON/OFF: Manually overrides the current state of the timer (turns connected devices on or off).
Receptacles:
- Two grounded 3-prong receptacles on the side for connecting devices.
Setup
Initial Setup:
- Unpack the Timer: Carefully remove the DT620CL timer from its packaging. Inspect for any visible damage.
- Power Connection: Plug the timer directly into a standard 120V AC grounded wall outlet. The display should illuminate. The internal battery backup will retain settings during power outages.
- Set Current Time and Date:
- Press the MODE button until the time setting appears (usually flashing digits).
- Use the dial (or specific buttons if indicated in the full manual) to adjust the hour, then minutes. Press OK to confirm each setting.
- Proceed to set the current month, date, and year in a similar manner, confirming each with OK.
- Set Geographic Location (for Astronomic Feature):
- The astronomic feature requires setting your approximate geographic location for accurate sunrise/sunset calculations. Refer to the full manual for specific steps on entering your region or zip code.
- This setting ensures the DUSK/DAWN functions operate correctly based on your local sunrise and sunset times.
- Daylight Saving Time (DST) Option: The timer has an automatic DST option. Ensure this is enabled if you wish for the timer to automatically adjust for DST changes. Consult the full manual for instructions on enabling/disabling this feature.
Operating Instructions
Programming ON/OFF Times:
- Press the PROG button to enter programming mode. The display will show a program number (e.g., "P1 ON").
- Use the dial (or specific buttons) to set the desired ON time for Program 1. Press OK to confirm.
- The display will then show "P1 OFF". Set the desired OFF time for Program 1. Press OK to confirm.
- You can then select the days of the week for this program to be active (e.g., Daily, Weekdays, Weekends, or specific days). Use the dial and OK to select.
- Repeat steps 2-4 for additional programs (up to 28 ON/OFF settings).
- To exit programming mode, press the MODE button repeatedly until the current time is displayed, or wait for the timer to automatically exit.
Operating Modes:
- AUTO Mode: (Default) The timer operates according to the programmed ON/OFF times and astronomic settings. The "AUTO" indicator will be visible on the display.
- MAN (Manual) Mode: Allows you to manually turn the connected device ON or OFF, overriding any programmed settings. Press the MODE button until "MAN" appears. Then use the ON/OFF button to toggle power.
- RAND (Random) Mode: Activates a random delay to programmed ON/OFF times, providing a lived-in look for security purposes. Press the MODE button until "RAND" appears.
- ON/OFF Button: In AUTO mode, pressing the ON/OFF button will temporarily override the current program without changing the mode. The timer will return to its programmed schedule at the next scheduled event.
Maintenance
- Cleaning: Disconnect the timer from the power outlet before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or abrasive materials.
- Battery Backup: The timer features an internal battery for retaining settings during power outages. If the low battery indicator appears, the internal battery may need servicing by a qualified technician or replacement if user-serviceable (refer to the full manual for details).
- Storage: If storing the timer for an extended period, ensure it is disconnected from power and stored in a cool, dry place.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Timer display is blank. | No power to the outlet; internal battery depleted. | Check the wall outlet with another device. If power is present, the internal battery may need replacement or charging (if applicable). |
| Timer not turning ON/OFF at programmed times. | Incorrect mode selected (e.g., MAN mode); incorrect program settings; time/date not set correctly. | Ensure the timer is in AUTO mode. Verify all program settings (ON/OFF times, days) are correct. Check that the current time and date are accurately set. |
| Astronomic feature (DUSK/DAWN) is inaccurate. | Geographic location not set or set incorrectly. | Re-enter your geographic location (e.g., zip code or region) as per the full instruction manual. |
| Connected device not receiving power. | Timer is OFF; device is faulty; timer is overloaded. | Check the timer's current state (ON/OFF button). Test the connected device in another outlet. Ensure the total wattage of connected devices does not exceed the timer's 1800W capacity. |
Specifications
| Attribute | Detail |
|---|---|
| Model Number | DT620CL |
| Brand | Intermatic |
| Electrical Ratings | 15 Amps, 1800 Watts Inductive, 1000 Watts Tungsten, 125 Volts AC, 60 Hz, 1/2 HP |
| Number of Settings | Up to 28 ON/OFF settings |
| Mounting Type | Plug-In Mount |
| Product Dimensions | 3.25 x 3.5 x 3.75 inches |
| Item Weight | 3.99 ounces (0.11 Kilograms) |
| Color | White |
| UPC | 078275111349 |
Warranty Information
The Intermatic DT620CL Digital Timer comes with a Limited Lifetime Warranty. For specific terms, conditions, and details regarding warranty claims, please refer to the official warranty documentation included with your product or visit the Intermatic website.
Customer Support
For further assistance, technical support, or to inquire about replacement parts, please contact Intermatic customer service. You can also visit the official Intermatic store on Amazon for more product information and resources:
