Elta 4521: 17. 16.

17.  16.

24

POWER SUPPLY AND BATTERIE BACKUP

The supply voltage for this device is 230 V ~ 50 Hz. The time settings are backed up by 3 x 3 V 

CR 2025 Lithium cell batteries (not included). Please observe the polarities when inserting the 

batteries. In case of power failure the device automatically activates the battery backup to save all 

time and timer settings. 

GETTING STARTED

Press the RESET button at the bottom side of the UNIT after you have connected it to the mains 

supply. 

The unit will display the full segment for about two seconds. Afterwards the unit turns back to normal 

mode. 

There is a night illumination switch on the device (blue LED light) (16); set to ON to turn on the 

emergency light and set to OFF to turn it off again.

1.  SETTING TIME AND DATE

During normal mode press MODE (1) for about 2 seconds in order to enter the time settings. Press 

MODE (1) multiple times to switch through the mode cycle: 

Year (YR) – Day (D) – Month (M) – 12 / 24-Hour-Format (12H/24H) – Hours (Hour display is 

blinking) – Minutes (Minute display is blinking) - Normal

Adjust the corresponding settings as follows:

•  Adjust the respective values with the buttons       (8) and       (7).

•  Hold the buttons       (8) and       (7) pressed for quick adjustment.

•  Press MODE (1) after each respective setting to store and to enter the next setting. 

•  The unit will turn back to normal mode and save all adjusted settings if you do not carry out any 

setting for a few seconds.

Projector

Turn the ball left to open (direction of arrow: 

OPEN); take off the upper part.

The FOCUS adjusting wheel (24) for setting 

the focal length is located within the ball.

Put back the upper hemisphere and turn right 

to secure (direction of arrow: CLOSE).

Setting the calendar year

Factory setting 

:  2006

Setting options 

:  2000 - 2099

Display showing calendar year

Display showing calendar month

Setting the calendar month

When setting the date the unit will calculate the weekday automatically.

Display showing date (day)

When setting the date the unit will calculate the weekday automatically.

Setting the date (day)

When setting the minutes the seconds will be automatically reset to Zero.

Setting the minutes

Display showing Minutes mode (The minute display is blinking)

Setting the hours

Display showing Hour mode (The hour display is blinking)

Display showing 12/24H mode (Choice: 12-Hour-Format)

Displaying 12 / 24-Hour-Formats

Setting the 12 / 24-Hour-Formats

Display showing 12 / 24 H mode (Choice: 24-Hour-Format)