Emerson Research SmartSet JMK2442 User manual

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This Emerson Research model JMK2442 security timer allows you to program a lamp in your house to turn on and off automatically to
create the impression that the house is occupied even when no one is at home. You can program up to 4different ‘On’ and ‘Off’ times
within 24 hours, and you can select from among the following operation options:
Every Day, Monday thru Saturday, Weekdays Only, Weekends Only, or any individual day.
In addition you can select Random operation to vary the programmed On and Off times by up to 75 minutes, rather than have the lights
turn On and Off at exactly the same time each day.
The timer also includes a second “untimed” AC outlet, not controlled by the timer. This means that if you currently have two devices
plugged in to your AC outlet you do not ‘lose’ the use of one of the outlets when you connect this timer. Simply plug the other device that
does not require timer control into the “untimed” outlet.
Because this timer uses Emerson’s patented SmartSet®auto time setting technology it will automatically reset itself after any power
interruption, and Daylight Saving Time adjustments are made automatically through the year 2099.
SmartSet
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Model:JMK2442 SmartSet®LampControlSecurityTimer
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1.) MODE Button.
2.) TIME ZONE/RANDOM Button.
3.) PROGRAM Button.
4.) TIME Button.
5.) MONTH/DATE Button.
6.) EXTRA UNTIMED OUTLET With Cover.
7.) Multi-Function LCD Display.
8.) TIMED OUTLET.
9.) UP Button.
10.) DOWN Button.
11.) RESET Button (On Back Cabinet).
12.) ON/OFF Button.
13.) Lithium Battery Compartment.
Location ofControlsand Indicators
InitialSetUp
BatteryInformation
The long life3Vlithiumbattery(Type CR2032)ispre-installed inthe timer.Thereisno need toinstall anybatteryatthistime.The original
batteryshouldprovide back up powerforbetween 3and 5yearsataminimum.When itistimetoreplacethe batteryaLowBattery
indicatorwill beginflashing inthe display.Refertothe “Replacing The Battery”section intheseinstructions.
Display and Backlighting Information
BatteryPower
When the timerisnotconnected totheACoutlet, the builtinbatterywill powerthe display.Pressing anyone ofthe controlbuttonswill turn
the display‘On’.Thisallowsyou toprogramthe timerand makeall necessaryadjustmentswhileholding the timerinyourhand.The display
will turn‘Off’again60 secondsafterthe lastcontrolinput.
Note:The displaybacklighting doesnotcomeon until the timerisconnected tothe ACoutlet.
AC Power
When the timerisconnected toyourACoutletthe displayremains‘On’constantly.Pressing anyone ofthe controlbuttonswill turnon the
displaybacklighting for10 seconds.After10 secondswithno controlinputthe displaybacklighting goes‘Off’automatically,butthe display
remains‘On’.
Setting TheTimeForTheCorrectZone
The firsttimethatyou press anybutton on the timerthe displaywill turn‘On’and showthe correcttimeinthe EasternTimezone.Eastern
Timeisthe initialdefaultsetting.If DaylightSaving Timeisineffect, the DSTindicatorwill appearinthe display.If the DSTindicatordoes
notappearinthe display,the timedisplayed isEasternStandardTime.
If you liveinthe EasternTimezone,thereisnothing elsetodo.The clock isalreadysetcorrectly.If you liveinadifferenttimezone you
mustsetthe timerforyourownzone asfollows:
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1.)Press anybutton toturnthe display‘On’.The displayshowsEasternTime.
2.)Press the TIMEZONE/RANDOMbutton once.
The displaywill show“ET”indicating the EasternTimezone.
Depress and holdthe TIMEZONE/RANDOMbutton until the ETindicatorflashes,then releasethe
button.
3.)Whilethe ETindicatorisflashing,press the UP or DOWN buttonstoselectyourowntimezone according tothe following table:
AT–AtlanticTimeZone.PT–PacificTimeZone.CT–CentralTimeZone.
YT–Yukon TimeZone.MT–MountainTimeZone.HT–Hawaiian TimeZone.
4.)When yourtimezone isflashing inthe displaypress the TIMEZONE/RANDOMbutton oncemore.The selected zone indicatorstops
flashing and the displaywill showthe correcttimeinthe zone thatyou selected.
ManualTime,Month/Date,and YearAdjustments
Although yourtimerwaspre-programmed withthe correcttimeatourfactoryitispossiblethatovertimeitmaygainorloseafewminutes,
especiallyifitisnotconnected tothe ACoutletforlong periodsoftime.If itbecomenecessarytoadjustthe Time,Month/Date,orYear
display,removethe timerfromthe ACoutlet, and then:
1.)Press anybutton toturnthe display‘On’ifnecessary.
2.)Depress and holdthe TIMEbutton until the timedisplaybeginsflashing.
3.)Press the UP or DOWN button tosetthe displaytothe correcttime.
4.)Press the TIMEbutton oncemore.The displaystopsflashing and the newtimeisset.
5.)If necessarytoadjustthe Month/Date,depress the MONTH/DATEbutton until the currentMonth/Date
displaybeginsflashing.Press the UP or DOWN buttonstosetthe displaytothe correctdate,
then press the MONTH/DATEbutton oncemoretoenterthe newdateand returntothe correcttime
display.
6.)If necessarytoadjustthe Year,depress the MONTH/DATEand TIMEbuttonstogetheruntil the current
Yeardisplaybeginsflashing.Press the UP or DOWN buttonstosetthe displaytothe correctct
year,then press the MONTH/DATEbutton oncemoretoenterthe newyearand returntothe correct
timedisplay.
•Tocheck the dateatanytime,press the MONTH/DATEbutton once.The displaychangesfromTimetoMonth/Datefor5secondsand
then returnstothe Timedisplay.
•Tocheck the yearatanytime,press the MONTH/DATEand TIMEbuttonstogether.The displaychangesfromTimetoYearfor5
secondsand then returnstothe Timedisplay.
Programming The On/Off Timer Settings
This SmartSet®timer has 4 separate On/Off programs that can be set to switch a lamp on and off at 4 different times within a 24 hour
period. In addition each of the 4 programs may be set to operate everyday, Monday thru Saturday, weekdays only, weekends only or for
any one day.
To make the programming process a little easier we have set the following On and Off times as the defaults for each of the 4 programs:
“P1” – ON Time 5:00 PM / OFF Time 9:00 PM.
“P2” – ON Time 6:00 PM / OFF Time 10:00 PM.
“P3” – On Time 7:00 PM / OFF Time 11:00 PM.
“P4” – ON Time 8:00 PM / OFF Time 12:00 AM.
In addition the default setting for each of the 4 programs is Everyday operation.
To change the settings for any of the individual programs proceed as follows:
Press the PROGRAM button to select the specific program that you wish to change.
Each time you press the PROGRAM button the display advances from P1 > P2 > P3 > P4 > P1, etc.
The display will show the ‘turn on’ time for each program and all 7 day indicators will appear to show that
the program is set for Everyday operation.
When the ‘turn on’ time is on the display you can press the UP or DOWN button to change the
display to the ‘turn off’ time.

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To change the ‘On’, Day Mode, and ‘Off’ settings for Program 1:
1.) When the ‘On’ time is showing on the display depress the PROGRAM button for 2 seconds until the
‘On’ time and Day indicators begin flashing and the AUTO indicator appears.
This is your indication that Program 1 is ‘On’.
2.) Press the UP or DOWN button adjust the turn ‘On’ time as desired.
3.) If you wish to adjust the Day Mode, press the MODE button repeatedly to scroll through the Day Mode options as follows:
• All Indicators Flashing – The timer will operate every day.
• Monday thru Saturday operation.
• Monday thru Friday operation.
• Saturday / Sunday operation.
• Sunday only.
• Monday only.
• Tuesday only.
• Wednesday only.
• Thursday only.
• Friday only
• Saturday only
When the desired Day Mode is flashing, press the PROGRAM button again. The ‘Off’ time begins
flashing in the display.
4.) Press the UP or DOWN buttons to adjust the turn ‘Off’ time as desired.
5.) When the desired ‘Off’ time is flashing press the PROGRAM button once more. The display returns to the ‘On’ time.
After 5 seconds the display exits the Program setting mode and return to the correct time. The AUTO indicator disappears.
To change the settings for Programs 2, 3, or 4, press the PROGRAM button until the desired Program number appears and the display is
showing the turn ‘On’ time for that program. Then follow steps 1 – 5 above to change the settings for that program.
To Enable or Disable The Programs
When you enter the ‘On’ time setting mode for any one of the programs, that program is automatically turned ‘On’ (Enabled). The AUTO
indicator appears in the display together with the specific program number and any lamp connected to the “Timed” outlet of this timer will
be switched ‘on’ and ‘off’ according to the programmed settings.
To cancel (Disable) one or more of the programs, press the PROGRAM button repeatedly to scroll through the 4 ‘On’ time displays. If the
AUTO indicator appears together with any of the Program indicators, that program is ‘On’ (Enabled).
To cancel (Disable) that program so that it does not operate, press the ON/OFF button. The AUTO indicator disappears and that specific
program is cancelled.
Pressing the ON/OFF button, while any of the 4 program indicators appears on the display, switches that specific program ‘On’ or ‘Off’.
To Disable all of the Programs, press the MODE button when the display is showing the correct time. All of the Program indicators will
disappear from the display and all the timer programs are disabled.
To Enable all of the Programs, press the MODE button again. The Program indicators will reappear in the display and all of the Programs
are enabled again.
Random Mode
The Random Mode provides an extra measure of security by randomly varying the programmed ‘On’ and ‘Off’ times so that the lamp
connected to this timer is not turning on and off at exactly the same time each day. The variation in the ‘On’ and ‘Off’ time ranges
from 0 minutes to 75 minutes.
To activate the Random Mode, press the PROGRAM button to display the P1 turn ‘On’ time, then press
the RANDOM button. The RANDOM indicator appears. The display returns to correct time in 5 seconds.
NOTE: When the Random Mode is selected it will apply to all of the timer programs that are ‘On’ (Enabled).
To cancel the Random Mode, press the PROGRAM button to display the P1 turn ‘On’ time, then press the RANDOM button again. The
RANDOM indicator disappears.
Final Connections
After adjusting one or more of the 4 programs with your desired ‘On’, ‘Off’, and Day Mode settings, connect the timer to your AC outlet.
Connect the lamp that you wish to control to the TIMED OUTLET of this timer.
IMPORTANT! REMEMBER TO SET YOUR LAMP SWITCH TO THE ‘ON’ POSITION. THIS TIMER CAN TURN YOUR LAMP ‘ON’
AND ‘OFF’ WHEN THE LAMP SWITCH IS IN THE “ON” POSITION, BUT IT CANNOT TURN ‘ON’ YOUR LAMP IF THE LAMP
SWITCH IS IN THE “OFF” POSITION.

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NOTE: To switch the lamp that is connected to the TIMED OUTLET ‘On’ or ‘Off’ at any time, press the ON/OFF button.
Use the “EXTRA UNTIMED OUTLET” to power a second device intended for continuous, uninterrupted operation.
Replacing The Battery
When the Low battery indicator begins flashing you should purchase a replacement CR2032 lithium battery as soon as possible.
Remove the timer from your AC outlet and remove the battery holder from the timer as shown.
Remove the original battery and install the new battery as illustrated.
The timer can maintain all of the programmed settings for about 5 minutes even after the original battery
is removed, so be sure you have purchased a fresh battery and have it ready to install before you
disconnect the timer from your AC outlet.
If the timer is disconnected from the AC outlet and the battery is removed for more than 5 minutes, the
timer memory may be erased and all settings must be reprogrammed after a fresh battery is installed.
Timer Protection Circuit / Resetting The Timer
This timer is equipped with a special protection circuit designed to prevent permanent damage
from sudden ‘spikes’ in you household AC power supply.
If such a power ‘spike’ occurs the timer may ‘freeze’ and all of the controls will be inoperable.
If this occurs, use the tip of a straightened paper clip of similar object to press the RESET
button on the back panel of the timer cabinet.
NOTE: Pressing the RESET button erases the timer memory. All indicators in the display
will turn ‘On’ for one second, and then the timer will return to its original factory default
settings. It will be necessary for you to reset the Time Zone, Year, Month/Date, Time,
and all timer program settings.
CR2032
JMK2442-041107-02 Printed inChina
Emerson Radio Corp. warrants manufacturing defects in original material, including
original parts and workmanship, under normal use and conditions, for a period of
ninety (90) days from the date of original purchase in the U.S. With your dated
proof of purchase, we will provide repair service at no charge for labor and parts at
an authorized Depot Repair Facility, or replace the product in our discretion. For
repair or replacement, pack your unit in a padded box, enclose your check or money
order payable to Emerson Radio Corp. in the amount of $5.00 (not required by
California residents) to cover shipping and handling costs, and enclose a copy of
your proof of purchase. Send your unit to:
Emerson Radio Corp.,
5101 Statesman Drive,
Irving, TX 75063.
1-800-898-9020.
This warranty does not cover damage from negligence, misuse, abuse, accident,
failure to follow operating instructions, commercial use, rental, repairs by an
unauthorized facility, or products purchased, used, serviced or damaged outside of
the United States.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY
ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.
AU898H
LIMITEDWARRANTY
Risk Of Electric Shock
•Do not open or tamper with unit.
•Plug directly into an electric outlet.
•For indoor use only.
•Remove timer from outlet before cleaning.
•Keep children away from timer and outlet.
SAFETY WARNING
Risk Of Fire
• For only 120V AC 60Hz voltage usage.
• Do not use to control irons and cooking appliances, etc.
• Do not exceed the recommended electrical ratings.
Ratings:
Rated Impluse Voltage = 1500V.
Maximum Power Output: 1800W.
Type of Disconnection: Type 1B.
For household use only.
Warnings:
Do not use the timer to turn off power for maintenance work (repairs, removing broken bulbs, etc).
Always turn power off at the service panel by removing a fuse or tripping the circuit breaker before doing any electric repairs.
Never Submerge Unit Into Water