Inovonics Wireless Corporation 3B6OT9ESL Manual De Usuario

© Inovonics, 2009 - www.inovonics.com 

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Set as the factory default, the EN1242 combines the low battery signal with 

a signal indicating the detector needs cleaning. If multiple-condition 

indication is not desired, wireless reporting of the CleanMe status can be 

disabled by moving the jumper on the low battery/CleanMe selection pins 

to Low Bat.  When this is done, only a low battery signal will be sent from 

the detector.
Note: Low battery/CleanMe messages are suppressed when an alarm is 

being transmitted.

Note: Even if CleanMe notification is disabled, the sensitivity test will still 

indicate sensor condition.

The EN1242 must be registered to function in your EchoStream system. 

Refer to your receiver, network coordinator or control panel manual for 

registration instructions. Inovonics Wireless recommends all EchoStream 

transmitters be supervised. When prompted, you will press the EN1242 

Reset button to complete registration.

1. Use the provided anchors and screws to mount the EN1242, paying 

careful consideration to the following best practices:

Caution: Regulations pertaining to smoke sensor installations vary. For 

more information, contact your local fire department or local authority 

having jurisdiction.

• Install a minimum of two smoke sensors in any household.

• Put a smoke sensor in the hallway outside of every bedroom area.

• Put a smoke sensor on every level of a multi-level residence. 

• In rooms with sloped ceilings, install smoke sensors 0.9m (3 feet) 

measured down from the highest point of the ceiling.

• Install basement sensors on the ceiling as close to the center of the 

room as possible. If this is not practical, install on the ceiling no closer 

than 10cm (4 inches) from any wall or corner.

• If ceiling mounting is not practical, install on an inside wall between 10 

an 15cm (4 and 6 inches) from the ceiling.

• Put smoke sensors at both ends of a bedroom hallway if the hallway is 

more than 9m (30 feet) long. Large rooms over 84 square meters (900 

square feet) require more than a single sensor.

• Areas with rough ceilings or short, transom-type walls coming down 

from the ceiling require additional smoke sensors.

• Install second-floor smoke sensors on the ceiling at the top of the first-

to-second floor stairwell. Be sure that no door or other obstruction 

blocks the path of smoke to the sensor. 

Do not locate sensors:

• To a drop ceiling tile; mount it to a metal runner.

• In or near areas such as kitchens or garages, where smoke or vehicle 

exhausts normally occur (protect these areas with heat-detection 

devices, not with smoke sensors); near furnaces, hot water heaters, 

or gas space heaters.

• In damp or very humid areas, or next to bathrooms with showers. 

Install sensors at least 1.5m (5 feet) away from bathrooms.

• In very cold or very hot areas.

• In dusty, dirty, or insect infested areas. 

• Near fresh air inlets or returns or excessively drafty areas. Air 

conditioners, heater, fans, and fresh air intakes and returns can drive 

smoke away from smoke sensors.

• In dead air spaces at the top of a peaked ceiling or wall/ ceiling 

intersect. Dead air may prevent smoke from reaching a smoke sensor.

• Near fluorescent light fixtures. Install smoke sensors at least 3m (10 

feet) away from fluorescent light fixtures. 

• Between protruding ceiling structures such as beams or walls which 

can create dead air spaces and may prohibit smoke from reaching the 

detector.

Caution: All sensors are subject to possible compromise or failure-to-warn 

for a variety of reasons. For example: Smoke sensors cannot detect smoke 

in chimneys, walls, roofs, or smoke blocked by a closed door; sensors may 

not detect smoke on other levels of the building; sensors may not warn in 

time when fires are caused by smoking in bed, explosions, improper 

storage of flammables, overloaded electrical circuits, or other hazardous 

conditions.

Caution: To avoid a fire department dispatch, contact the central 

monitoring station or, if possible, put the system into sensor test mode.
There are two ways to test the EN1242 smoke detector sensor. The 

sensitivity test should be performed every week; the smoke test should be 

performed at least once a year. Both tests activate the alarm sounder and 

send alarm signals.

The EN1242 should also be tested after initial registration, as well as each 

time the smoke chamber is changed or the batteries are replaced.

Smoke sensors should be tested annually using aerosol simulated smoke, 

such as ESL Smoke! In a Can® (ESL Part No. SM-200).

The LED will remain on while the built-in transmitter sends an alarm signal, 

and the sensor will produce a three-beep pattern until the Test/Silence 

button is pressed. The sensor automatically resets when smoke is no 

longer present. A sensor that fails to activate may require cleaning. If a 

sensor still fails to activate after cleaning, return the unit for service.

1. Press and hold the test button for four seconds, then release it. The 

LED will flash corresponding to the sensor’s sensitivity.

During this test, the control panel, serial receiver or network coordinator 

should receive an alarm and a low battery signal, if low battery is selected, 

followed a few seconds later by a restoral.

If the control device fails to respond, it is possible the EN1242 failed to 

reset properly when the batteries were installed. To force a reset, remove 

the batteries from the EN1242 for a least 30 seconds, reinstall them, press 

the Reset button, then retest as described above.

Test/Silence is pressed to perform the sensitivity test, as well as to silence 

the low battery chirp. The low battery chirp will resume after 24 hours if the 

condition is not corrected. 

The LED indicates the status of the sensor as follows:

LED flashing The LED flashes every 8 seconds to indicate normal 

operation.

LED on The sensor detects smoke, and is sending an alarm. 

LED off Maintenance is required.

Clean the sensor cover with a dry or damp cloth as needed to keep it free 

from dust and dirt. Clean the sensor interior and replace the optical 

chamber at least once each year. Use only ESL model 211 optical 

chambers for replacement. To clean the sensor chamber:
1. Remove the sensor body from the mounting base.

2. Remove the batteries.

3. Slide a flat-blade screwdriver in the slot on the sensor cap and gently 

push the handle down to pry the cap off. 

4. Squeeze the optical chamber where indicated and pull it up and away 

from the sensor. Discard.

5. Use a soft-bristled brush to remove dust and dirt from the smoke 

chamber base.

6. Align the new optical chamber with the base and snap it down into 

place.

7. Replace the sensor cap.

8. Reinstall the batteries.

9. Replace the battery cover.
Note: The base will not fit properly if the batteries are not installed.
10. Reattach the sensor to the mounting base. 

11. Perform the sensitivity test.

1

Self-diagnostics failure. Return sensor for service/

replacement.

2-3

Sensor is becoming insensitive. Clean the sensor (see 

“Clean the EN1242”) and retest. If error persists, replace 

sensor. 

4-7

Sensor is within normal sensitivity range.

8-9

Sensor is becoming too sensitive. Verify that the smoke 

chamber is snapped down securely. Clean the sensor and 

retest.