Intermatic DT620 Series - Digital Timer Manual

Intermatic DT620 Series - Digital Timer Manual

  1. Remove Pull Tab (L) (Fig. 1) from battery holder if present.
  2. Display shows 12:00. If no display see troubleshooting guide.
  3. For your convenience timer may be set while unplugged. Display turns OFF after 1 minute to save battery. Press any button to turn display back ON.

Clear Out Old Settings

  1. Press and hold the ON/OFF button.
  2. While holding ON/OFF, press and hold the reset button (G) for five seconds with a blunt object, until display shows "CLR".
  3. Release ON/OFF and RESET buttons. The screen displays 12:00 AM, with 12 flashing. (Fig. 2) Proceed to step 2 below.

Set The Time, Date and Location

  1. If necessary, press MODE to display CLOCK in the top right corner of the screen, then press OK. Hours digits flash.

  1. Turn the selector knob to set the current hour and press OK.
  2. Turn the selector knob to set the current minute and press OK.
  3. Turn the knob to set the desired year and press OK. (Fig. 3)
  4. Turn the knob to set the desired month and press OK.
  5. Turn the knob to set the correct date and press OK. The screen displays DAY SAV and flashing AUTO (Meaning AUTOmatic DAYlight SAVing Time adjustment is enabled).
  6. To accept AUTO Daylight Saving Time adjustment press OK and proceed to step 8.
    To disable Daylight Saving Adjustment (For example, in Arizona or Hawaii) turn knob to display flashing MAN then press OK. LOC will show on top of display. (Fig. 4) Proceed to step 13.
  7. Steps 8-10 allow you to change the Daylight Saving Time (DST) adjustment dates. The timer is factory-set to the US Daylight Saving rules effective from the year 2007 forward. The display will show ON DAY SAV, flashing 03, and WK 02, meaning timer will adjust forward on 2nd Sunday in March. Proceed to step 9 if you need to change the factory settings or press OK repeatedly to accept the factory settings until LOC appears on top of display and proceed to step 13. (Fig. 4)
  8. Turn the knob to change the flashing 03 to the required new month (01-06) for the spring adjustment, then press OK.
  9. Turn the knob to change the flashing 02 to the required new week (01-02-03-04-L) for the spring adjustment, then press OK. ("L" means Last week of month).
  10. Turn the knob to change the flashing 11 to the required new month (07-12) for the autumn adjustment, then press OK.
  11. Turn the knob to change the flashing 01 to the required new week (01-02-03-04-L) for the autumn adjustment, then press OK. LOC shows at top of display. (Fig. 3)
  12. Turn the knob to select the desired state or province (if in Canada) or MEX for Mexico and press OK.
  13. Turn the knob to select the region of the state or province and press OK.
  14. Turn the knob to select the time zone and press OK. The Dawn time flashes.
  15. Turn the knob to adjust the Dawn Time, (Fig. 5) if necessary and press OK.
  16. Turn the knob to adjust the Dusk Time, (Fig. 6) if necessary and Fig. 6 press Ok. Display shows MAN, and Time of Day.

Programming Dusk ON/Dawn OFF

  1. From the MAN, AUTO,or RAND screen, press PROG. The screen displays a flashing
  2. Press PROG again.
  3. Turn the selector knob until a flashing ON and DUSK appears at the top of the screen then press PROG.
  4. Turn the knob to select the required days of the week that you want the DUSK ON event to occur. (Fig. 8)
  5. Press PROG twice. The screen displays EVENT 02 and flashing text at top.
  6. Turn the knob until a flashing OFF and DAWN appears on the screen and press PROG.
  7. Turn the knob to select the required days of the week for the DAWN OFF to occur and press PROG.
  8. Press OK to save the programming and return to the AUTO screen.

To Set a Dusk ON and Fixed Time OFF Program

  1. From the MAN, AUTO or RAND screen, press PROG. The screen displays a flashing 01. Press PROG again.
  2. Turn selector knob until a flashing ON and DUSK appears. Press PROG.
  3. Turn the knob to select the required days for the DUSK ON event and press PROG. The screen displays a flashing 02. Press PROG.
  4. Turn the knob until OFF flashes and 12:00 AM appears then press PROG.
  5. Turn the knob to select the desired days of the week for the Fixed Time OFF event and press PROG.
  6. Turn the knob to select the desired OFF hour and press PROG.
  7. Turn the knob to select the desired OFF minute and press PROG.
  8. Press OK to return to the AUTO screen.

To Set a Fixed Time ON and Fixed Time OFF Program

  1. From the MAN, AUTO or RAND screen, press PROG. The screen displays a flashing 01. Press PROG.
  2. Turn the knob until ON flashes and 12:00 AM appears. Press PROG.
  3. Turn the knob to select the required days for the fixed time ON and press PROG.
  4. Turn the knob to select the desired ON hour and press PROG.
  5. Turn the knob to select the desired ON minute and press PROG. The screen displays a flashing 02. Press PROG again.
  6. Turn the knob until OFF flashes and 12:00 AM appears and press PROG.
  7. Turn the knob to select the desired days of the week for the fixed time OFF to occur and press PROG.
  8. Turn the knob to select the desired OFF hour and press PROG.
  9. Turn the knob to select the desired OFF minute and press PROG.
  10. Repeat steps 2-12 for additional (higher numbered) ON/OFF events or press OK to return to the AUTO screen.

To Review/Revise Calendar Settings

  1. Press MODE repeatedly until CLOCK is displayed.
  2. Press OK repeatedly to step through all settings until Time of Day and MAN is displayed.
  3. Use selector knob to revise and OK button to save changes.
  4. Use MODE button to select MAN, AUTO or RAND operation.

To Review/Revise ON/OFF Settings

  1. Press PROG button.
  2. Turn selected knob to view all 28 possible settings.
  3. Revise per setting procedure.
  4. Press OK to return to AUTO mode.
  5. Use MODE button to select MAN, AUTO,or RAND operation.

Select Operating Mode

  1. PRESS MODE button to select:
    1. AUTO (Timer follows your program)
    2. RAND (Timer follows your program with daily RANDOM variations in ON/OFF times.
    3. MAN (Timer saves but ignores your program. Use ON/OFF to switch the load).

    About the Batteries

    The battery voltage is continuously monitored. If a low voltage is detected, the low battery indicator will be displayed. (Fig. 9).

    Replacing the Batteries

    To remove the batteries, carefully pry the battery holder up with a small flat screwdriver. Install the new batteries as shown in Fig. 10. Firmly place the battery holder into the switch.

    Troubleshooting Guide

    1. Complete the steps for setting the Time and Date, then temporarily change the date to June 21st.
    2. Review the DAWN and DUSK settings by pushing the PROG button.
    3. Make sure the specific ON or OFF time settings won't interfere with these DAWN and DUSK times. Make changes as necessary.
    4. When finished, change the Date setting back to today's date.

    Warranty service is available by either

    1. returning the product to the dealer from whom the unit was purchased or
    2. completing a warranty claim online at www.intermatic.com.

    This warranty is made by: Intermatic Incorporated, Customer Service 7777 Winn Rd., Spring Grove, Illinois 60081-9698. For warranty service go to: http://www.Intermatic.com or call 815-675-7000

    Documents / Resources

    References

    Download manual

    Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

    Need Assistance?

    Do you have a question about the DT620 Series that isn't answered in the manual? Leave your question here.

    Thank you! Your question has been received!