background image

To activate the detector, open the front flap and pull out the activation
strip. The green and red lights will flash briefly and the buzzer will
sound a short chirp.

Press the test button and check that the red light flashes and the
buzzer sounds. Close the front flap. The detector is now operating 
and is ready for use.

It has been recommended by COGDEM (The Council of Gas Detection
and Environmental Monitoring) that carbon monoxide alarms be tested
externally at least once every 6 to 12 months with a suitable source of
carbon monoxide gas.

SF Detection recommend a Gas Test Kit - a test gas in a can - which
enables safe and easy testing and is available from SF Detection, 
tel: 01202 645577

If the detector raises an alarm, proceed as follows:

Open all doors and windows to ventilate the area and allow the 
carbon monoxide to disperse.

Where possible turn off all fuelled appliances and stop using them.

Evacuate the property leaving the doors and windows open.

Ring the gas or other fuel supplier on their emergency number 
and explain the problem. Keep the telephone number in a 
prominent place.

•  Do not re-enter the property until the alarm has stopped.

Get medical help immediately for anyone suffering from the effects 
of carbon monoxide poisoning such as headaches, nausea, etc. 
and advise that carbon monoxide poisoning is suspected.

Do not use the appliances again until they have been checked 
by an expert and the fault located and cleared. In the case of 
gas appliances this must be a 

CORGI

registered installer.

The carbon monoxide gas detector is pre-calibrated at the factory 
and requires no maintenance other than to clean the outside case
occasionally with a clean tissue. Ensure that the holes on the front 
of the detector are not blocked with dust or dirt. DO NOT USE
CLEANING AGENTS, BLEACH OR POLISH.

The detector should be tested weekly by pressing the test button 
on the front of the unit.

During operation, the detector carries out a self-check test 
every minute. 

The detector will operate for 5 years under normal use. The detector
must be replaced when either the 

End of Detector Life Signal

is given

(buzzer sounds 3 short chirps every minute) or the test button does 
not work.

Normal Operation

When no carbon monoxide is present, the green power light will flash
approximately once every minute.

Alarm Condition

When the unit detects carbon monoxide, it will give the 

alarm signal

continuously. The red alarm light will flash and the buzzer will sound
approximately 5 times per second.

When the detector has been in alarm for 30 minutes the 

alarm signal

will be given once every minute.

Alarm Signal

The carbon monoxide alarm can be distinguished from smoke detector 
alarms as it signals C.O. in morse code (5 per second).

Hush Feature

If required, the audible alarm can be silenced for 5 minutes by 
pushing  the button marked 'Test'. The red alarm light will continue 
to flash 5 times per second.

If carbon monoxide is still present after the 5 minute hush period, 
the audible alarm will sound.

NOTE:

The hush facility will not operate at levels above 350ppm

carbon monoxide. At levels below 350ppm the hush facility will only
operate once, ie the audible alarm can only be silenced for one 
5 minute period.

Return to Normal Operation

When the carbon monoxide gas disperses, the alarm signal will stop.
The green power lamp will continue to flash approximately once 
every minute.

Fault Warning

If a fault is detected the buzzer will sound 2 short chirps every minute.
The detector must then be replaced.

Battery Fault Warning

The buzzer will sound 1 short chirp every minute. 

End of Detector Life Warning

When the unit comes to the end of its life the buzzer will sound 
3 short chirps every minute. The detector must then be replaced. 

NOTE:

with normal use the batteries will last the full 5 years life 

of the detector. However, battery life will be reduced if either a fault 
occurs with the battery or the detector remains in alarm for long 
periods of time. 

Should the Battery Fault Warning occur please contact your 
detector supplier.

Model:

SF350

Gas Detected:

Carbon monoxide

Detection Principle: 

Electro-chemical cell

Alarm Indication: 

Flashing red light and audible alarm

Alarm Levels: 

50ppm

Between 60 to 90 mins

100ppm

Between 10 to 40 mins

300ppm

Less than 3 mins

Operating Temperature:

-5˚C to 40˚C

Humidity Range: 

30 to 90% RH

Warm-up time after
initial switch on: 

Instantaneous

Normal Operating Life:

5 years

Battery life when in alarm: At least 5 days

Dimensions: 

110mm x 76mm x 34mm

Weight:

Approximately 140g

Green power 

Red alarm 

Buzzer

light

light

1 per minute

5 per 1 second

5 per 1 second
per minute

(_•_•_ _ _)

c       o

5 per 1 second

5 per 1 second

1 per minute

2 per minute

1 per minute

3 per minute

When the detector has come to the end of its life, dispose of the unit 
in accordance with local regulations.

This carbon monoxide detector is designed to alert you to a potentially
dangerous build-up of carbon monoxide gas. It is not designed to
remedy a carbon monoxide problem nor to locate a specific source 
of carbon monoxide. SF Detection shall not be liable to pay for any
carbon monoxide investigation or service call carried out or arranged 
in response to an alarm.

GUARANTEE

We guarantee your new gas detector for five years from 
the date of purchase and under normal use and service, 

to be free from defects in materials and workmanship. 

During this period we will, at our discretion, repair, 

replace of refund the price of any part of the gas detector 

which is found to be defective in either materials or 

workmanship providing this occurs under normal use 

and service. We shall, however, be under no obligation 

to repair, replace or refund the price of units which are found 

to be defective in any way due to damage, neglect, 

unreasonable use or which have been tampered with or 

found to have been dismantled. Defective units should be

returned, in suitable packaging, along with proof of 

purchase to 

SF Detection, 4 Stinsford Road, 

Nuffield Industrial Estate, Poole, BH17 0RZ. 

An accompanying letter should state clearly any 

problem with the gas detector. This guarantee does 

not affect your statutory rights.

GAS EMERGENCY SERVICE 

TELEPHONE NUMBER

0800 111 999

Contact Numbers for 

OTHER FUEL

Appliances:

OIL USERS:

Contact OFTEC on 0845 658 5080

SOLID FUEL USERS:

Contact HETAS on 0800 600 000
(Please note these numbers are only 
available during normal office hours)

Gas appliances should be checked for safety annually by a 
CORGI registered installer. Details of local installers can be 
obtained by ringing CORGI on 01256 372300 or by accessing 
the website at www.corgi-gas.com

User Manual also available in Braille. A carbon monoxide safety 
information sheet is available in: Punjabi; Urdu; Bengali; Gujarati 
and Hindi. For copies please call SF Detection on: 

01202 645577

.

OPERATION OF THE DETECTOR

SPECIFICATION

SF Detection
4 Stinsford Road
Nuffield Industrial Estate
Poole
Dorset BH17 0RZ

Tel:  (44) 01202 645577
Fax: (44) 01202 665331

Email: sales@sfdetection.com

Website: www.sfdetection.com

DISPOSAL

DISCLAIMER

TESTING YOUR CARBON MONOXIDE DETECTOR

WHAT TO DO WHEN THE ALARM SOUNDS

CARE AND MAINTENANCE OF DETECTOR

END OF DETECTOR LIFE

USING THE DETECTOR

REMOVE STRIP 
TO ACTIVATE

Test button

SF350 Manual 2109M5009_2  22/7/03  3:30 PM  Page 2

Reviews: