background image

4.  The LAT (latitude) entry screen appears showing the value of the selected geographical location. 

If

Then

LAT accuracy does not require 
adjustment (

TYPICAL

)

Press ENTER/NEXT twice to scroll past the latitude and longitude screens to the 
TZCENT screen. Go to step 6.

Greater LAT accuracy is warranted

Press + or - to select the latitude and press ENTER/NEXT. Go to step 5.

5.  The LN (longitude) entry screen appears showing the value of the selected geographical location.

If

Then

LN accuracy does not require 
adjustment (

TYPICAL

)

Press ENTER/NEXT to skip the longitude screen. Go to step 6.

Greater LN accuracy is warranted

Press + or - to select the latitude and press ENTER/NEXT. Go to step 6.

6.  The TZCENT screen appears.  Press + or - to scroll to the desired time zone and press MODE to save the settings.  

(See table for a description of the available time zones)

If

Then

TZHAI

Hawaiin time zone

TZALS

Alaskan time zone

TZPACI

Pacific time zone

TZMntN

Mountain time zone

TZCENT

Central time zone

TZEAST

Eastern time zone

TZATLN

Atlantic time zone 

TZNFLD

Newfoundland time zone

Setting Sunup and Sunset Offset Times from Astronomic Sunup and Sunset Times 

Normally, the time switch’s sunup and sunset times match the actual occurrence of sunup and sunset (astronomic sunup and sunset 
times). In some cases it is desirable to change the time switch’s sunrise and sunset times so circuits turn on or off either before or 
after an actual sunup or sunset. For example, a user can set the lights in a parking lot to turn on 30 minutes before the normal sunset 
time by changing the time switch’s sunset time to 30 minutes (a 30 minute offset) before the normal sunset time.
Follow this procedure to adjust sunup and sunset times or press MODE to skip this procedure.
1.  Press MODE to advance to the Offset mode selection if this selection is not already active.  The 

SET

 and 

SUNUP

 icons appear 

at the top of the display. The default sunup time for circuit #1 is displayed as indicated by the 

LOAD

 icon above the circuit #1 

button.

2.  Press + or - to adjust the time for sunup and press ENTER/NEXT. OFFSET briefly appears on the display, and then the offset 

time (in minutes) is displayed.

NOTE:

 Offsets can be set to a maximum of 2 hours (120 minutes) before or after a sunup or sunset time. A minus sign (-) 

appears before the digit to indicate minutes before a sunup or sunset time.

3.  If needed, press + or - to adjust the offset time value and press ENTER/NEXT to save the value.
4.  The updated sunup time is displayed.
5.  If desired, press the ON/OFF button to adjust the offset time for the next circuit to program.  The 

LOAD

 icon for the selected 

circuit will be displayed.

6.  Repeat steps 2 through 5 as needed for each circuit.
7.  When all the circuits are set, press MODE to save settings. The time switch displays 

SET

 and 

SUNSET

 icons at the top of the 

display. The default sunset time for circuit #1 is displayed as indicated by the 

LOAD

 icon above the circuit #1 button.

8.  Repeat steps 2 through 5 as necessary to adjust sunset times.
9.  When all the sunset times are configured, press MODE to save.

Programming Events

Users can configure Astro events, fixed timed events, or a combination of Astro and fixed timed events.
Perform the applicable instructions below.
• 

To set Astro events (sunset and sunup) only, perform the procedure; Setting Astronomic On/Off Events

• 

To set fixed timed events only, perform the procedure; Setting Fixed Timed Events

• 

To set a combination of Astro and fixed events, perform both procedures; Setting Astronomic Events and Setting Fixed Events

Setting Astronomic On/Off Events

Access the Astro Events screen to configure Astronomic ON/OFF events for each individual circuit. For each circuit one Astronomic 
ON event (at sunset) and/or one Astronomic OFF event (at sunup) can be enabled for selected days of the week. Follow this 
procedure to set Astro ON/ OFF Events (if no astronomic events need to be set press MODE to move to the next mode selection).
1.  Press MODE to advance until 

SET   ASTRO    ON/OFF EVENTS    SUNSET

 icons appear on the display (if this selection is not 

already active). The display also shows the 

ON@

 icon and the 

LOAD

 icon above the circuit #1 button. 

2.  If an event is not set the time display will show - - - -.
3.  Press DAY. The screen displays SUNSET and the days of the week.

If the desired days for this event 
are

Then

MON-SUN

Press ENTER/NEXT to save. Go to step 7.

MON-FRI

Press DAY once and then press ENTER/NEXT to save. Go to step 7. .

SAT-SUN

Press DAY twice and then press ENTER/NEXT to save. Go to step 7.

SET EACH DAY INDIVIDUALLY
On the display, the day of the week 
being set is flashing.

Press DAY three times and the MON icon should flash.
Go to step 4.

4.  Press – to eliminate this event or press + to keep this event for the selected day.
5.  Press DAY to move to the next day of the week repeat step 4.
6.  When all the days are set, press ENTER/NEXT to save.
7.  The display changes to 

SET   ASTRO    ON/OFF EVENTS    SUNUP

, the 

OFF@

 icon.

8.  If an event is not set the display will show - - - - .
9.  Press DAY. The screen displays SUNUP and the days of the week.

If the desired days for this event 
are

Then

MON-SUN

Press ENTER/NEXT to save. Go to step 13.

MON-FRI

Press DAY once and then press ENTER/NEXT to save. Go to step 13.

SAT-SUN

Press DAY twice and then press ENTER/NEXT to save. Go to step 13. 

SET EACH DAY INDIVIDUALLY
On the display, the day of the week 
being set is flashing.

Press DAY three times and the MON icon will flash.
Go to step 10.

10.  Press – to eliminate this event or press + to keep this event for the selected day.  
11.  Press DAY to move to the next day of the week repeat step 10.
12.  When all the days are set, press ENTER/NEXT to save.
13.  The display shows the 

SET   ASTRO    ON/OFF EVENTS    SUNSET

 icons. The display also shows the 

ON@ 

icon and the 

LOAD

 icon above the next circuit button.

If

Then

You want to configure an Astro event 
for another circuit

Return to step 2.

All the required Astro events are set

Press MODE to save and exit. The procedure is complete.

Summary of Contents for ET2845C

Page 1: ...ed in a commercial environment This equipment generates uses and radiates radio frequency energy and if not installed and used in ac cordance with instructions may cause harmful interference to radio...

Page 2: ...4 COM3 NO 3 COM2 NO 2 COM1 NO 1 AC IN OUTPUT CONFIGURATION SIM CIRCUIT 1 AND 2 OUTPUT CONFIGURATION SIM CIRCUIT 3 AND 4 L1 L2 CIRCUIT 1 CIRCUIT 2 CIRCUIT 3 CIRCUIT 4 TIMER POWER AC IN NO 1 COM1 NO 2 C...

Page 3: ...ry stick refer to the Read Time Switch Program Data section in these instructions Enable Disable Daylight Saving Time and Setting Daylight Saving Time Rule Configure the time switch to automatically a...

Page 4: ...yed as indicated by the LOAD icon above the circuit 1 button 8 Repeat steps 2 through 5 as necessary to adjust sunset times 9 When all the sunset times are configured press MODE to save Programming Ev...

Page 5: ...1 Press MODE to advance until the SET DATE and ON icons appear on the display if this selection is not already active A Holiday Number is also displayed on the right side of the display 2 The time dis...

Page 6: ...configuration DST on off setting DST rule setting and geographical location from a USB memory stick Follow these steps to transfer all programming from a USB memory stick to the time switch 1 Press M...

Page 7: ...ge initial installation costs removal costs or reinstallation costs INTERMATIC INCORPORATED WILL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITAT...

Reviews: