Grundig KD-218A User manual

INSTRUCTION MANUAL
BEDIENUNGSANLEITUNG
MANUEL D’UTILISATION
GEBRUIKSAANWIJZING
UK: CARBON MONOXIDE DETECTOR
DE: KOHLENMONOXID-MELDER
FR: DÉTECTEUR DE MONOXYDE DE CARBONE
NL: KOOLMONOXIDEMELDER
ITEM: 871125223147
Edco Deutschland GmbH, Siemensstr. 31, 47533 Kleve Deutschland

AMANUAL ITEM: 871125223147
CARBON MONOXIDE DETECTOR
MODEL: KD-218A
BRIEF INTRODUCTION
Thank you for purchasing this carbon monoxide alarm produced by
our company. Make sure that you read this user manual thoroughly
before using the product.
This product can emit visual and audible alarms.
This product has the following features:
This alarm has been designed and tested to detect CO in a residential
environment. It implements standard BS EN 50291-1:2018. It uses
electrochemical sensor and has high sensitivity, stable performance,
strong anti-interference, small size and long service life. It can provide
sensor fault warning, low battery warning, end-of-life warning and low
CO concentration warning.
IMPORTANT
Make sure that you read this user manual thoroughly before using the
product. This carbon monoxide alarm is designed to detect carbon
monoxide and can NOT be used to detect smoke or any other gas.
As the covering area of CO detection is limited, we recommend you
to install CO alarms in each room of your home to protect the whole
family effectively.
1. PRODUCT FEATURES AND SPECIFICATIONS
1.1 Electric Parameters
Gas detected: Carbon monoxide
Dimension: 107 x 77 x 36mm
Weight: 116g
Power: 3-AA LR6 Batteries
Low battery warning: When the voltage is less than 3.6V, low battery
warning is given. The unit can still work properly for 7 days after the
warning.
Working condition: temperature -10°C to +45°C, 0-93% relative
humidity
Quiescent current: <30uA
Alarm current: <65mA

Audible alarm: >85dB (3m from the unit)
Concentration range displayed: 10 — 550PPM
Accuracy of Digital Display:
A) 30PPM ±6PPM
B) 50PPM ±10PPM
C) 100PPM ±15%
D) 300PPM ±15%
Alarm response times: comply with BS EN 50291-1:2018
Condition CO concentration Without alarm
before With alarm before
A 27±3 PPM 120 min --
B 55±5 PPM 60 min 90 min
C 110±10 PPM 10 min 40 min
D 330±30P MM -- 3 min
Low CO concentration warning: When CO concentration is greater
than 30PPM for a duration of more than 60 minutes, or when CO
concentration is greater than 40PPM for a duration of more than 40
minutes, low CO concentration warning will be made.
Quit alarm condition: When CO concentration is below 40PPM, alarm
will terminate automatically.
Power indicator: Flashes about every 45 seconds.
Fault warning: When a fault occurs, fault warning will be given within 3
minutes.
Suitable place: Domestic premises.
Product service life: 10 years.
IMPORTANT : After 10 years’ lifetime, stop using the product for your
safety and scrap it according to local laws and regulations.

1.2 BRIEF INTRODUCTION OF THE PRODUCT
1.2.1 Product structure
The structure of KD-218A/E is as follows:
1. CO Alarm
2. LCD display
3. Buzzer
4. Power indicator
5. Fault indicator
6. Alarm indicator
7. Test button
8. Sensor inlet
9. Battery compartment
10.Mounting hole
11. Mounting plate
12.Screw hole
13.Buckle

1.2.2 Parts function
1. CO Alarm: The whole product.
2. LCD display: Show detector’s parameters.
3. Buzzer: Sounder of the detector.
4. Power indicator: Green light that is used for power indication.
5. Fault indicator: Yellow light that is used for fault indication.
6. Alarm indicator: Red light that is used for alarm indication.
7. Test button: For testing and alarm silence.
8. Sensor inlet: Gas inlet.
9. Battery compartment: Where to install the battery.
10.Mounting hole: Hole for the buckle.
11. Mounting plate: The plate that the detector is attached to for
support.
12.Screw hole: Hole for screw installation.
13.Buckle: For attaching the detector to the mounting plate.

1.3 INFORMATION INDICATION AND POWER-UP
1.3.1 Information indication
1.3.1.1 Information indication table
Information Status Function
Power-up prompt The Power indicator,
Fault indicator and Alarm
indicator will ash at the
same time, and the
buzzer beeps at the same
time.
It indicates that the power supply is
normally connected. The indicator
light is on and the buzzer can sound
normally, indicating that the indicator
lights and buzzer are working
normally, otherwise
there is a fault.
Normal operation The Power indicator ashes at least
once every minute.
It indicates the detector is in normal
operation.
Low battery warning The Fault indicator ashes with a
beep at least once every minute.
It indicates batteries need to be
replaced.
Fault warning The Fault indicator will ash twice with
beeps. Fault warning will be given at
least once every minute when fault is
detected.
It indicates there is fault in the sensor
or circuit. Fault warning will be given
at least once every minute until fault is
removed.
End-of-life warning The Fault indicator will ash 3 times
with beeps. The end-of-life warning
will be given at least once every
minute.
It indicates end of unit life.
Alarm warning The Alarm indicator ashes 5 times
with beeps. That makes one cycle of
alarm. Alarm warning will be made 3
times every 10 seconds.
It indicates alarm condition and
dangerous concentrations of CO is
detected.
Alarm silence When the detector is in alarm
condition, press and hold the TEST
button, then it will enter alarm silence
condition. Alarm silence condition is
the same as alarm condition except
the buzzer doesn’t beep temporarily.
The Alarm indicator still ashes. Alarm
silence condition lasts less than 10
minutes.
It indicates alarm condition
without beeps, only when the CO
concentration is less than 200PPM.
Low CO
concentration
warning
The Alarm indicator will ash 4 times
with beeps at a slower speed. Low CO
concentration warning will be given at
least once every ve minutes and the
interval will be at least 3 minutes.
It indicates low concentration of CO is
detected.
Testing Press the TEST button, and the
Power, Fault and Alarm indicator will
ash once at the same time. If the
detector is working properly, then one
cycle of alarm will be made. If there
is malfunction, then fault warning will
be made.
For manual testing.

1.3.1.2 LCD information
The LCD display can show CO concentration, battery level, fault
warning, end-of-life warning, power-up prompt and testing operation.
1.3.1.3 Power-up prompt
It indicates power-up.
1.3.1.4 Battery level
A) Enough
B) Normal
C) Low
D) Low battery warning will be made
1.3.1.5 CO concentration
The LCD display shows CO concentration in PPM.
When CO concentration is less than 10 PPM, it shows 0 PPM.
When CO concentration is more than 550 PPM, it shows “Hco”.

When CO concentration is more than 550 PPM, it is very dangerous.
1.3.1.6 Testing operation
It indicates testing is in progress.
1.3.1.7 Fault warning
It indicates fault warning.
1.3.1.8 End-of-life warning
It indicates end of unit life, and the product needs to be replaced.
1.3.1.9 Power-up prompt
When batteries are installed and the detector is powered up, power-
up prompt will be given. It indicates that the power supply is normally
connected, and the indicator lights and buzzer are working normally.
The LCD display shows ”EN”.
1.3.1.10 Battery level
When the detector is in normal operation, the Power indicator ashes
every 45 seconds. If low concentration of CO is detected but alarm
has not been triggered, the interval will be less than 45 seconds.
The LCD display shows battery level all the time.
1.3.1.11 Low battery warning

When the voltage is less than 3.6V, low battery warning will be given
at least once every minute.
The LCD display shows condition D as specied in 1.3.1.4.
1.3.1.12 Fault warning
If there is fault in the sensor or circuit, fault warning will be given within
3 minutes. Fault warning will be made at least once every minute until
the fault is eliminated.
The LCD display shows “Err” when fault warning is given.
1.3.1.13 End-of-life warning
When the detector has been working for about 10 years, end-of-life
warning will be given. The product cannot be used any more.
The LCD display shows “End” when end-of-unit-life warning is given
1.3.1.14 Alarm warning
The alarm response time of this detector complies with EN 50291. In
alarm condition, at least three cycles of alarm will be made, and the
interval between each cycle will be less than 10 seconds. The alarm
will terminate automatically in 6 minutes when CO disappears.
1.3.1.15 Alarm silence
When the detector is in alarm condition and the CO concentration
is less than 200 PPM, press and hold the TEST button and it will
enter alarm silence condition. Alarm silence condition is the same
as alarm condition except the buzzer doesn’t beep temporarily. The
Alarm indicator still ashes. Alarm silence condition lasts less than 10
minutes. Press the TEST button in alarm silence condition, and it will
recover alarm condition immediately.
1.3.1.16 Low CO concentration warning
When CO concentration is greater than 30PPM for a duration of more
than 60 minutes, or when CO concentration is greater than 40PPM for

a duration of more than 40 minutes, low CO concentration warning will
be made every 3 to 5 minutes. The low CO concentration warning is
distinctly different from alarm warning, please refer to Section 1.3.1.1.
1.3.1.17 Testing
When the detector is in normal operation, press the TEST button and
testing will be conducted. If the detector is in alarm condition, it will
enter alarm silence condition.
1.3.2 Power-up
This product has battery compartment with red battery pin. Use 3
replaceable AA LR6 alkaline batteries. The detector will be powered on
after 3 AA LR6 batteries are installed.
Press the red battery pin and install the batteries according to the
polarity marks in the battery compartment. If the power-up prompt
complies with contents of Section 1.3.1, it means the buzzer and
indicator lights are working normally. The detector will enter normal
operation within 20 to 30 seconds after power-up. The detector must
be powered on in clean air without carbon monoxide. Otherwise, alarm
warning may be given immediately.
WARNING :
The detector must be powered on in clean air without carbon
monoxide. Otherwise, alarm warning may be given immediately.
1.4 OPERATING CHARACTERISTIC
1.4.1 Normal operation
The detector will enter normal operation within 20 to 30 seconds after
power-up. The Power indicator ashes every 45 seconds. When there
is CO in the air, the Power indicator ashed every 30 seconds. The
Fault indicator and Alarm indicator are off.

1.4.2 Alarm condition
The alarm response time of the detector complies with EN 50291.
The alarm won’t stop until CO concentration is lower than 40PPM. Put
the detector in clean air, the alarm will terminate automatically in 6
minutes, or you can quit alarm condition by pressing and holding the
TEST button for 1 to 3 seconds.
IMPORTANT : When you hear successive beeps, it means high
concentration of CO. You and all the personnel shall leave the
dangerous site at once and seek help.
1.4.3 Low CO concentration warning
In daily life, low levels of carbon monoxide can often occur. For
example, cigarette smoking, burning candle and gas-burning
appliances can produce low concentrations of CO. Although it may
do no harm to normal people, prolonged exposure to low levels of CO
can impair the health of vulnerable groups such as children, pregnant
women, elderly or patients. This warning is to help these people avoid
prolonged exposure to low levels of CO. It doesn’t mean a dangerous
situation, so please don’t be panic.
When CO concentration is greater than 30PPM for a duration of more
than 60 minutes, or when CO concentration is greater than 40PPM for
a duration of more than 40 minutes, low CO concentration warning will
be made. The low CO concentration warning which has been specied
in Section 1.3.1 is distinctly different from alarm warning:
Difference Low CO concentration warning Alarm warning
1The Alarm indicator ashes 4
times with beeps at a slower
speed.
The Alarm indicator ashes 5
times with beeps at a faster
speed.
2 Low CO concentration warn-
ing is given once every 3 to 5
minutes.
Alarm warning is given 3 times
every 10 seconds.
Low CO concentration warning won’t stop until CO concentration is
less than 25 PPM.
IMPORTANT : If you hear 4 slower beeps every 3 to 5 minutes instead
of continuous alarm sounds, it’s low CO concentration warning. Don’t

be panic. If you continuous alarm sounds with short intervals, it’s alarm
warning. It is very dangerous, please leave the scene immediately.
1.4.4 Testing
Test the CO alarm at least once a week by pressing the TEST button,
to make sure the sensor, buzzer and indicator lights are operating
properly. Press the TEST button, and the Power, Fault and Alarm
indicators will ash once at the same time. If the detector is working
properly, then one cycle of alarm will be made. If there is malfunction,
then fault warning will be made. Wait at least 5 seconds if you want to
perform the test operation again.
When testing, the LCD display shows ”- - -”.
1.4.5 Alarm silence
When the detector is in alarm condition and the CO concentration
is less than 200 PPM, press and hold the TEST button and it will
enter alarm silence condition. Alarm silence condition is the same
as alarm condition except the buzzer doesn’t beep temporarily. The
Alarm indicator still ashes. Alarm silence condition lasts less than 10
minutes. The higher the CO concentration is, the shorter the alarm
silence condition lasts. When the alarm silence condition ends, and
it will recover alarm condition. You can also quit alarm condition
by pressing and holding the TEST button for 1 to 3 seconds. If CO
disappears, it will quit alarm silence condition automatically. Make sure
you are not in a dangerous situation before alarm silence operation.
When the detector is in alarm condition, press and hold the TEST
button for 3 to 5 seconds until you see the Alarm indicator ashes with
no beep, then it will enter alarm silence condition. If you press and
hold the TEST button and still hear beeps, the CO concentration may
be more than 200 PPM. In this case, you cannot silence the alarm.
When the detector is in alarm silence condition, press and hold the
TEST button until you hear beeps, then it will recover alarm condition.

1.5 FAULT WARNINGS AND HANDLING
1.5.1 Sensor fault warning and handling
If there is fault in the sensor or circuit, fault warning will be given
within 3 minutes. Fault warning will be made at least once every
minute until the fault is eliminated. When fault warning is given, there
may be open circuit or short circuit in the sensor. Or there may be
electronic damage. Volatile gas like ethyl alcohol may affect the sensor
and cause temporary fault. In this case, please replace the product
with a new one. Then power off the damaged unit and put it in clean
air for 24 hours, and it will return to normal. If the unit can’t recover
after being placed in clean air for 24 hours, that means permanent
damage. Please don’t use the product any more. Don’t repair it
yourself or send to the service point that is not authorized by the
manufacturer.
WARNING :
When the alarm is damaged permanently, please stop using it.
Don’t repair it yourself or send to the service point that is not
authorized by the manufacturer.
1.5.2 Low battery warning and handling
When the detector is in normal operation, battery capacity is checked
every minute. When the voltage is less than 3.6V, low battery warning
will be given, the LCD display will show condition D as specied in
Section 1.3.1.4. When low battery warning commences, batteries are
only capable of giving low battery warning for one month, or giving
alarm warning for a few minutes. So please replace the AA LR6
batteries as soon as possible.
IMPORTANT : When you hear one beep every minute and see
condition D on the LCD display, please replace the LR6 AA batteries
immediately. Otherwise, the detector may not work properly, which will
threaten your health.

1.6 SERVICE LIFE AND END-OF-LIFE WARNING
1.6.1 Service life
This product has a service life of 10 years. After power-up, the product
starts timing and when it reaches 10 years the unit will give end-of-life
warning. You have to replace the product when this warning is given.
1.6.2 End-of-life warning
End-of-life warning will be made at least once every minute, which has
been specied in Section 1.3.1.
If the detector is powered on or off frequently, it may cause timing
error. So please don’t power on or off the detector frequently. And
please often check the product’s manufacturing
date, to see whether it has expired.
IMPORTANT : When you hear three quick beeps at intervals, it
means end of unit life. Please replace the product with a new one
immediately.
2. INSTALLATION
2.1 Installation locations
Install the products in bedroom and living areas. You can also install
them in the places where you think may have CO leakage. To make
sure people can hear the alarm from all
sleeping area, we suggest you install this product on each level of your
home.
To avoid causing damage to the product, to prevent false alarm and to
provide optimum performance, do not install the unit in the following
places:
2.1.1 Do not install the unit in enclosure space (such as in the kitchen
cabinet or behind the curtain).
2.1.2 Do not install the unit in the obstructive place (such as behind
the furniture).
2.1.3 Do not install the unit on the oor or in the water channel.
2.1.4 Do not install near the door and window.
2.1.5 Do not install near fan or air conditioner.

2.1.6 Do not install near the vents or ues.
2.1.7 Do not install in areas where the temperature can easily
decrease to -10°C or exceed 40°C, unless you especially need
to install like this.
2.1.8 Do not install in areas where there are a lot of lampblack and
dust which will block up the sensor.
2.1.9 Do not install in too damp areas.
2.1.10 Do not install near kitchen wares or cooking equipment.
2.2 Installation instructions
Install the unit where it’s easy for the user to test and operate. For wall
mounting, the height of installation position should be more than 1.5m.
The unit should be at least 0.3m from the ceiling. Besides, the unit
should keep 1.5m away from the corner, wall side and large furniture.
Steps of alarm installation
a. Take out the mounting plate and line it with the wall in the position
that you have chosen for installation. Mark the holes with a pencil
dot. With the aid of your wall punch and hammer,make two holes
(6mm diameter, 40mm depth) on the marked spots.
b. Insert the two plastic anchors into the holes. Secure the mounting
plate to the wall upwards by screwing.
c. After making sure the mounting plate is secured to the wall, power
on the detector and test according to 1.4.4. If the test result is
normal, then slide the alarm down over the mounting plate until it
snaps into place.
2.3 Notes for installation
• The detector cannot snap into place until the batteries are installed
correctly. Please don’t force to install in avoidance of damage.
• If you install the alarm in the garage, please do not install the
alarm near the exhaust port of motor vehicles. Because when your
car starts, high concentration of CO will be discharged and the
temporary CO that will not kill lives may cause the alarm.
WARNING :
In order to ensure the product is correctly installed and used, it

should be installed strictly according to this user manual or be
installed by qualied professional personnel.
3 MAINTENANCE
3.1 Other gases’ inuence on the product
The following gases make cause false alarm or damage the sensor:
Methane, propane, isobutane, ethylene, ethanol, alcohol, isopropanol,
benzene, toluene, ethyl acetate, hydrogen, hydrogen sulde and sulfur
dioxide. Almost all the Aerosol spray, alcoholics, paint, thinner, solvent,
binder, hair spray, aftershave, perfume, car exhaust (cold start) and
some cleaning detergents.
When the product is exposed to the gases mentioned above, it may
make false alarms or be damaged permanently. When alarms are
activated and you smell irritating gas, it may be false alarm because
CO is colorless and odorless. Put the product in clean air, if it’s still
in alarm condition 30 minutes later, then that means the product has
been polluted. You should place the power-off unit in clean air for a
long time. If the product can’t recover 24 hours later, then it means
the sensor has been damaged and please don’t use the product any
more.
IMPORTANT : If the product is polluted by other gases, place the
power-off unit in clean air. If the product can’t recover 24 hours later,
please don’t use the product any more.
3.2 Cleaning and maintenance
The product must be kept clean when used, or its performance will
be inuenced and even may cause damage to the alarm. It shall be
cleaned and tested once a month in the following way.
3.2.1 Remove dust with vacuum cleaner.
3.2.2 Rub the surface with wet soft cloth which has been wringed out.
3.2.3 Press the TEST button and make sure the detector woks
properly, then reinstall it to use.
Don’t clean the alarm with chemical like alcohol, petrol, cleanser, etc.,
or it may cause damage to the alarm.

IMPORTANT : Clean the product once a month. Don’t clean the alarm
with chemical cleaner.
3.3 Maintenance tips
• Do not spray chemical aerosol like air freshener, hair spray,
perfume, insecticide or spray paint near the alarm.
• Do not paint the CO alarm. If you need to paint the wall and oor,
please put the alarm into a clean plastic bag rst. After the smell
has been fully volatilized, install the alarm again.
• Do not block up or cover the alarm’s venthole with paste adhesive
or other things.
• If the detector falls on the oor, pick it up to check whether the
battery is xed well. After making sure the battery is installed well,
press the TEST button again to see if the functions run well before
installing it again.
3.4 Hazard of dismantling and repairing the alarm without
authorization
The detector has been calibrated before leaving the factory. If you
dismantle it without permission and change any component or
software, it may cause false alarm or malfunction. So please don’t
dismantle or modify any component or program.
WARNING :
Please don’t dismantle or modify any component or program, or
it will cause malfunction.
4 INFORMATION ABOUT CARBON MONOXIDE
4.1 General carbon monoxide information
Carbon monoxide is a colorless and odorless gas which can cause
people to die and will engender when any combustible material burns.
When burning the combustible material in the limited room, higher
concentration carbon monoxide will be engendered. When people
absorb a certain amount of carbon monoxide, they will die. Now many
countries’ Consumer Product Safety Commissions have warned

the public the harm of fatal family poison gas and make the carbon
monoxide poison as the rst public safety problem.
4.2 Possible sources of carbon monoxide
In home, carbon monoxide may be engendered from heating and
burning equipment, such as stove, water heater, replace, charcoal-
burning grill, natural gas furnace, heating devices, microgenerator and
so on. Vehicles running in attached garages can also produce CO.
When these devices are in well-ventilated condition or in normal
working condition, the amount of carbon monoxide will be little and
discharged quickly without doing harm to people. But when there
is lack of oxygen or the burning is not sufcient, or the devices
have problems, high concentration carbon monoxide will engender.
Because the ventilation is not good, and the carbon monoxide is not
given off quickly, the high concentration carbon monoxide will be
accumulated to the extent that will harm people’s health.
WARNING :
The product only indicates the presence of carbon monoxide,
and warns people to deal with the situation or leave. It cannot
prevent CO from occurring.
4.3 Symptoms of CO poisoning
• Common mild symptoms: Slight headache, nausea, vomiting,
fatigue.
• Common medium symptoms: Headache, drowsiness, confusion,
fast heart rate.
• Common severe symptoms: Convulsion, unconsciousness, cardio-
respiratory failure, brain injury, death.
Young children and the elderly may be more vulnerable. Please pay
attention to high-risk persons because they may experience a more
dangerous situation at a certain level.
If you experience even mild symptoms of CO poisoning, please
consult your doctor immediately!

WARNING :
The product may not prevent the chronic effects of carbon
monoxide exposure. And it may not fully safeguard individuals at
special risk.
4.4 What to do when the alarm sounds
WARNING :
Carbon monoxide is a poisonous gas that can kill people’s lives.
When the product alarms, it means the carbon monoxide has
been engendered and it’s very dangerous.
As carbon monoxide can kill your lives, please take the following
actions if the product alarms:
1. Stop using all fuel-burning appliances and ensure that they
are turned off. Open doors and windows quickly. Turn on
ventilation and exhaust systems.
2. Make sure all the people move to fresh air immediately. Call
emergency service for help. Don’t reenter the premises until
the alarm stops and remains in normal condition.
3. Get medical help for anyone suffering the effects of carbon
monoxide poisoning.
4. If the alarm reactivates within 24 hours, repeat above steps
and call a qualied appliance technician to investigate
sources of CO from fuel burning equipment and appliances,
and to check if ventilation and exhaust system is working
properly. If problems are identied during the inspection, stop
using the equipment immediately. Let qualied appliance
technician repair it.

5. ACCESSORIES LIST
The product leaves factory with the following accessories:
No. Accessory Name Quantity
1 CO alarm 1
2 Mounting plate 1
3 Screw 2
4 Plastic anchor 2
5 User manual 1
This user manual is very important for you to use the product,
please read it carefully and store it well. Our company assumes no
responsibility if the product is damaged because of human factors
which causes a loss.
Thank you for purchasing our products!
Electrical products must not be thrown out with domestic waste.
Recycle them at the special disposal centers provided for the
purpose. Contact your local authorities or stockiest for advice on
recycling.
The potential effects on the environment and human health as a
result of the presence of hazardous substances in electrical and
electronic equipment.
For disposal, this tool also can be returned to the hardware store.