NEW COSMOS ELECTRIC CO. LTD ML-310 Manuel D’Utilisation

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This gas detector detects methane gas.

When gas is detected, an alarm (flashing of red LED, sounding of warning 

alarm) will be activated.

 

This device is also equipped with an Itron Network Solutions (INS) 

communication module that can send information over the network regarding 

gas alarms, gas detector trouble, low battery, and end of service life.

Read, understand and retain this manual for future reference.

Read these precautions before using the product and be sure to follow these 

precautions in order to prevent hazardous situations and property damage.

Precautions are classified with the following symbols according to the 

severity of the hazards and damage that may arise due to incorrect 

handling of this product.

This indicates details for which incorrect handling of the 

product is expected to lead to situations having an imminent 

chance of hazards leading to death or serious injury.

This indicates details for which incorrect handling of 

the product is expected to lead to situations having a 

chance of hazards leading to death or serious injury.

This indicates details for which incorrect handling of 

the product is expected to lead to situations having a 

chance of injury or property damage.

Make sure that the following are observed when a gas alarm sounds. 

There may be a risk of explosion.

Leave the building immediately, opening doors and windows as you leave.  

Take others with you.  

If you are outside when you smell the gas, leave the area immediately.

Avoid causing a spark, which might cause the gas to explode:

1. Do not remove the connector from the lithium battery

2. Do not light a match or smoke.

3. Do not turn appliances or lights on or off.

4. Do not use a flashlight.

5. Do not start a car.

6. Do not use a telephone.

Find a phone away from the area and immediately call 911 and/or your 

natural gas utility.  You can report leaks anonymously.  Always call to 

report the problem.  Do not assume someone else will do it.

Do not re-enter the area until the source of the leak is found and corrected. Follow 

directions from utility employees or emergency responders who are on site.

•

 This gas detector is equipped with an End Of Life timer that will expire

after 5 years from date of installation. Replace any gas detectors for 

which 5 years has passed since their installation with a new gas detector.

•

 Do not subject the gas detector to water either by submerging them in

water or spraying water on it.

•

 Do not disassemble or modify this product.

•

 Do not subject this product to impacts.

•

 Do not remove the dedicated lithium battery, except for when disposing

of the gas detector.

•

 Never cover the gas detection unit of this product.

•

 When removing or installing the gas detector, do so by using a stable

ladder or step and proceed with caution.

•

 Do not change this product’s installation position.

•

 Do not place or install objects in front of the gas detector.

•

 Do not listen to alarms with your ear close to the gas detector.

•

Do not spray cleaning chemicals or insect sprays directly on or near the detector. 

•

Do not paint over the Alarm. Doing so may permanently damage the detector.

•

 This gas detector detects methane gas.

•

 Do not use this product outside of areas serviced by conEdison.

Visual and audible signals will not stop until the product is reset by 

removing and reinstalling the battery.

An alarm sounds when the level of gas in the area of the gas detector reaches 

or exceeds a certain concentration and warning signals are transmitted.

When trouble occurs, Yellow LED (trouble) Flashes 3 times every 10 

seconds and trouble signals are transmitted during the health check.

When the battery is low, Yellow LED (trouble) Flashes once every 10 

seconds and low battery signals are transmitted during the health check.

When the end of service life is reached, an end of service life notification is 

issued and end of service life signals are transmitted during the health check. 

1. Open the battery cover on the back of the gas detector.

2. Connect the included lithium battery.

* Once the lithium battery is connected, the gas detector’s green LED

(power) will flash once for 1 second.

The detector will also search for an access point to connect to the 

network.

3. Insert the lithium battery and close the cover.

4. A “Beep” will sound 30 seconds after the power is turned on and the

detector will begin monitoring.

* The device status will be confirmed during that 30 second period.

This “Beep” sound is not a notification that a connection with an 

access point has been established.

The time required to connect with the access point will depend upon 

usage conditions. Perform a communication test to confirm the 

connection status with the access point.

5. Press and hold the Test Switch for more than 3 seconds to test the

alarm.

This detector has been designed to be as maintenance-free as possible, 

but there are a few simple things you must do to keep it working properly:

•

 Test it at least once a week.

•

 Clean the detector at least once a month; gently vacuum the outside

of the detector using your household vacuum's soft brush attachment. 

Test the alarm. Never use water, cleaners or solvents since they may 

damage the unit.

•

 Relocate the unit if it sounds frequent unwanted alarms. See "Where

This Alarm Should Not Be Installed" for details.

•

 If product enters low battery mode, the batteries must be replaced.

Batteries in this device are not available in retail. Please call 

Consolidated Edison Company for replacement batteries.

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ML-310CECET_(00)_

unit
Detects a gas
leak.

(transparent)
Open to replace
a battery.

CE

Sounds an
alarm when gas
leakage.

(power)
This LED flashes
when the
test switch is
pressed.

Used to test
power, alarm
sounds, and
communication.

(alarm)
This LED flashes
when gas is
detected.

(trouble)
This LED flashes
when trouble
occurs, when the
battery is low, or
when the end of
service life has
been reached.

An alarm sounds every 6 seconds 

stating “Beep Beep Beep Beep 

Danger – gas leak explosion risk – 

evacuate, then call 911.”

Transmits gas alarm signals every 

30 seconds.

Red LED (alarm)
Flashes once every 2 seconds

Transmits trouble signals during 
health checks performed every 8 
hours

Transmits low battery signals 
during health checks performed 
every 8 hours

* Batteries in this device are not

available in retail. Please call
Consolidated Edison Company
for replacement batteries.

Transmits end of service life 
signals during health checks 
performed every 8 hours

Yellow LED (trouble)
Flashes 3 times every 10 seconds

Yellow LED (trouble)
Flashes once every 10 seconds

Yellow LED (trouble)
Flashes twice every 10 seconds

Green LED (power)

Flashes once every second

A “Beep” sounds 30 seconds after 

power is turned on

Searching for access point