EN50291 defines the CO level at which the device must and must not go into alarm. The higher the CO concentration, the quicker the device will go into alarm. This is based on the fact that the poisoning impact of CO is determined by CO concentration and exposure time. The alarm points ensure that the user is always warned when critical situations occur. The alarm levels are as follows:
30ppm: No alarm before 120 minutes.
50ppm: Alarm between 60-90 minutes.
100ppm: Alarm between 10-40 minutes.
300ppm: Alarm within 3 minutes
Dangerous CO levels may be caused by faulty appliances, which start to leak more and more CO over time. If activated, the pre-alarm will provide early warning of such situations even if the alarm levels are not being reached. If pre-alarms occur frequently it is recommended to call an professional technician for further investigation. The pre-alarm will start giving indications once 25% of the alarm level (time and concentration) has been reached. For example, if 43ppm CO is present, the prealarm will start after 15-23 minutes.
Low Level Monitoring Mode
In order to avoid unnecessary alarms due to short term CO peaks (e.g. from cigarette smoke) the EN standard prohibits any alarms before 3 minutes of CO presence, or for CO concentrations lower than 30ppm. The low level monitoring mode allows you to temporarily use the unit as a measuring device. Once activated, the units will instantly flash the blue ventilate light if the CO level rises above 10ppm. Units with a display will also show the currently present CO level.
The sensor plays a critical role in ensuring adequate CO detection. Devices use use Honeywell manufactured Electrochemical Cells: Ecosure® (7 years life and warranty) and Ecosure X® (10 years life and warranty). Decades of experience and rigorous quality control give us confidence that the cells work for the lifetime of the alarm.
Honeywell's CO alarms perform an automatic self-test for the electronics every 60 minutes.
Alarm Memory (End user)
CO does not leave any trace that can be detected by humans and you might have a malfunctioning appliance, which makes the alarm go off whilst you are out. The memory function will keep the Red Light flashing (LCD version will also show the PPM levels) until the button is pressed or 7 days have passed.
Event Logger (Professionals)
Honeywell's CO alarms record a history of events, which can be downloaded by professionals. This provides a more in-depth analysis of CO events such as detailed information on the CO concentration of the last 7 days and weekly maximums for the whole operating life. Dates of alarm events are recorded
CO alarms do not last forever and should be exchanged after their end-of-life date. The lifetime is mainly determined by the CO sensor. The EN standard for CO alarms therefore requires all CO alarms to have an end-of-life signal, which is implemented on all Honeywell CO alarms.
Smoke and heat alarms typically use an optical chamber to “see” the smoke. However, this can lead to nuisance alarms from toaster fumes or even cigarette smoke. Also, certain fire types are recognized with some delays. Multi-criteria detection adds a thermal sensor and uses an intelligent algorithm to improve reaction speed, and reduce the number of nuisance alarms.
Low Profile Design
Honeywell's slim, low profile design with soft edges makes the unit seem a lot smaller than it really is. Human-centred design techniques have been employed to ensure aesthetic appeal for homeowners.
Full 10 Year Lifespan and Warranty
Honeywell's full product lifespan warranty is one of the most comprehensive in the industry. This is backed by more than 50 years of fire detection sytem expertise. Honeywell is one of the few companies in the market to offer a full 10 year lifespan and 10 year warranty on its smoke and heat alarms.
3rd Party Certification and Q-Label - Germany
All residential smoke alarms being sold in the EU must be certified by a 3rd party, for example VdS, against EN14604 which is the standard for residential smoke alarms. This sets the minimum requirements for smoke alarms to be sold, whether it is for DIY or professional use. The Q-Label is a voluntary additional 3rd party certification, which is granted to high quality smoke alarms. Smoke alarms with the Q-Label are tested for long-life, minimised false alarms, increased protection against adverse environmental conditions and have a sealed battery with at least 10 years lifetime.
CE Mark - Europe
The CE mark affixed to the product confirms its compliance with the European Directives which apply to the product and, in particular, its compliance with the harmonised specifications of standard EN 14604 relating to Construction Products Directive 89/106/EEC.
BSI Kitemark - UK
The BSI Kitemark is a product or service certification mark that shows it has been tested independently and audited to ensure it meets the appropriate standards of quality and safety.
NF Mark - France
The NF Smoke Alarm Devices mark provides assurance to safety and consistent quality inspected by experts. Through rigorous and exhaustive inspections (holder’s quality management system, product inspections, audits and monitoring tests, etc.), the NF mark represents a comprehensive guarantee for consumers that the certified products are compliant. The NF Smoke Alarm Devices mark confirms the product’s compliance with certification rules NF 292.
Automatic Self-adjustment / Self Checks
Honeywell’s smoke and heat alarms have been fitted with an automatic self test function which ensures the unit is functioning properly. Every 10 seconds, the unit tests critical systems to ensure accurate alerts are delivered rapidly once a fire is detected.
Clearly Visible Alarms
Honeywell has integrated a set of clearly visible LED lights into the perimeter of the unit, ensuring the alarm can be seen from all angles. This feature supports people with hearing difficulties.
Honeywell’s unique dirt compensation ensures that nuisance alarms are kept to a minimum. By differentiating dust from smoke, the X-Series smoke and heat alarms only sound when a hazard is detected.
Honeywell's X-Series alarms all have rubber sealed housings. This protects the electronics from adverse environmental conditions such as humidity and improves reliability and lifetime. We have been using this technology successfully for many years in our commercial smoke alarms which endure particularly harsh environmental conditions.
There may be an alarm occurrence where you want to mute the loud alarm sounder, for example, when you have the situation under control. Pressing the Alarm Hush button on the unit will mute the sounder for 5 minutes. The alarm light will continue to flash as long as the unit detects a threat.
If a fault occurs for example when the alarm warns of an almost depleted battery, the alarm will start to bleep once per minute accompanied by a flashing fault light. The Fault Hush allows you to mute the sounder for 24 hours, giving you time to address the fault. If you wish to restart the 24 hour timer, you can press the button a second time.
Reduced Sound Level Test
Alarms should be tested regularly to ensure they are working properly. After pressing the Test button, the alarm will start the self-test procedure, flashing all lights and sounding the alarm. We have reduced the sound level for this test function considerably from the full alarm level of 85 dB to protect your hearing. By keeping the button pressed, the full alarm level will sound.
Professional landlords want to ensure that installed alarms cannot be deactivated by their tenants. Our X-Series alarms all have sealed batteries which cannot be removed by the end user. Also, once installed, a tool (screwdriver) is required to switch the unit off.
Maintenance Free Operation
All Honeywell X-Series alarms have extended lifetime batteries and CO sensors – there is no additional cost for replacement parts or labour to fit them. The only maintenance required is occasional cleaning of the product.
X-Series alarms can be interconnected to form a complete alarm system using the X-Series wireless module. If one of the units goes into alarm, all other units will sound as well. This improves safety, especially in larger properties. There are plans to introduce mains powered alarms.
Mains powered alarms can be affected by power outages. Therefore, all Honeywell mains powered X-Series alarms are fitted with a battery back-up.