Apollo Discovery Carbon Monoxide Detector - 58000-300APO

SKU
58000-300APO
£56.39 £46.99
Apollo Discovery Carbon Monoxide Detector - 58000-300APO
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Discovery CO fire detectors contain a long-life electro-chemical carbon monoxide sensor which is tolerant of low levels of common vapours and household products. The sensing technology is fast, accurate and needs only very low power. The detection capabilities are enhanced by a rate-sensitive response. Fast rises in the carbon monoxide level are often associated with hot fires and the detector will respond earlier under these conditions. The analogue reply from the detector is rate limited to remove nuisance alarms resulting from short-term high levels caused by sources such as pipe smokers or gas flame ignition.

Operation

The Discovery CO detector has five operating modes, each having a set combination of sensitivity and response delay, which the user can select for any given application.

Application

CO detectors do not detect smoke particles or heat and are not universal replacements for smoke detectors.

Apollo does not endorse the use of CO detectors as the main method of fire detection if: 

• the protected area is an escape route 

• there is a requirement to detect overheating of electrical equipment or cables 

• the protected area is exposed to sources of CO such as vehicle exhausts, or to hydrogen or to high levels of alcohol vapour as emitted by some cleaning agents 

• there is a requirement to detect fires involving flammable liquids


CO fire detectors are particularly suitable for supplementing smoke detection when there is: 

• a deep seated smouldering fire risk 

• a risk of fire starting in an enclosed space 

• a likelihood of stratification taking place 


Carbon monoxide detectors may be used as the primary fire detector in areas where the following conditions exist: 

• the main risk is smouldering fires 

• optical smoke detectors are deemed unsuitable

• the fire compartment is not greater than 50m2

Typical applications include hotel bedrooms, halls of residence, sheltered accommodation and hospital wards.

Drift Compensation

In view of the inherent stability of CO cells, there is no need for Discovery CO detectors to compensate for drift. Discovery CO detectors are set to report a drift value of 16.

Cell Test

The Discovery carbon monoxide fire detector has a remote test feature, which is used to verify that the electro-chemical cell is fitted and that it is active. A test must be carried out at least once a year but preferably more frequently to ensure that the cell has not dried out. (Note that the cell will not be affected by the test, even if the remote test is carried out once a day.) If the test indicates a sensor failure, i.e. the detector returns a pre-set analogue value of 25, the detector should be sent to Apollo’s Service Department for cell replacement and detector recalibration. When carrying out the cell test observe the 30s delay referred to above.

Precautions when investigating alarms

It is important to remember that CO is a colourless, odourless gas, which is not directly detectable by human senses. If a CO fire detector is in an alarm condition, it is possible that a dangerous level of CO exists around the detector. Extreme care must be taken when investigating alarms from CO fire detectors even if no combustion products can be seen or smelled. Because of this danger, it is imperative that CO fire detectors are correctly identified at the fire control panel so that personnel investigating alarms may take the relevant precautions.

Communication

Discovery uses a digital communications protocol which has been developed from the XP95 protocol but differs in that it allows communication in three different modes: (Normal, Read and Write) to allow a more extensive exchange of information and commands than previous analogue addressable ranges. In addition, Discovery can store data in non-volatile memory. 

The Normal mode is identical to the XP95 protocol with the exception that the five additional analogue value bits in the XP95 protocol extension have been re-defined so that the fire control panel is able to distinguish between Discovery and XP95 devices.

The Read mode is used to check information stored in the non-volatile memory of each detector. It is accessed by using a simple extension to the Normal mode communication method from the fire control panel to the detector.

In Write mode the fire control panel is able to write information to the detector by extending the communication method in the same way as in Read mode. During Read or Write modes a detector can signal an alarm by means of the alarm flag and alarm address bits.

Discovery detectors are compatible with XP95 and Soteria. It should be noted, however, that Discovery features will not be available when Discovery is used with XP95 fire control panels. Fire control panels with drift compensation algorithms should disable the algorithms when communicating with Discovery.

For fire control panels running CoreProtocol, please refer to the fire control panel manufacturer’s operating instructions.

Mounting Bases are sold separately (click here to see compatible bases)

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Key Features
> Enhanced detection capability
> Ideal for smouldering fires
> Less susceptible to false alarms caused by steam than smoke detectors
> Remote test feature
> Four bytes of user programmable non-volatile memory
> Alarm flag for fast alarm reporting
> Conventional alarm facility during CIE processor fault
> 360° visibility in alarm
> Compatible with XP95 and SOTERIA systems
> 

Mounting Bases are sold separately (click here to see compatible bases)


More Information
ManufacturerApollo Fire Detectors
MPN58000-300APO
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Specifications are given at 23°C and 50% relative humidity unless stated otherwise.
Product Code:58000-300
Detector Principle:Ambient carbon monoxide level
Supply Wiring:Two-wire supply, polarity sensitive
Terminal Functions:L1 -ve & L2 +ve: Supply in and out connections, +R: Remote indicator positive connection (internal 2.2kΩ resistance to positive)
Operating voltage:17-28V DC
Communication protocol:Apollo Discovery 5-9V to peak to peak
Quiescent current:300µA
Power-up surge current:1mA
Maximum power-up time:10 seconds
Alarm current, LED illuminated:3.5mA
Remote output characteristics:Connects to positive line through 4.5kΩ (5mA maximum)
Sampling Frequency:1 per seconds
Clean-air analogue value:25±2
Alarm level analogue value:55
Alarm indicator:2 red Light Emitting Diodes (LEDs); illuminated red in alarm; optional remote LED
Storage temperature:Continuous: +10°C to +30°C - Transient: -40°C - +55°C
Operating temperature:Continuous: 0°C to 50°C - Transient: -20°C to +55°C
Storage Pressure:If air freighted this product should be places in a pressurised hold.
Operating pressure:Suitable for installation up to 2,000m above sea level
Operating Humidity:Continuous 15% to 90% RH; Transient 0% to 99% RH
Effect of temperature on detector:Less than 15% change in sensitivity over rated range
Effect on wind:None
Cell Life:Maximum 7 Years (assumes regular checks are satisfactory)
Vibration, Impact & Shock:To EN54
IP rating:54 in accordance with BSEN60529
Dimensions (D x H):100 x 42mm, 100 x 50mm (Height in Base)
Weight:Detector: 105g - Detector in Base: 160g
MaterialsHousing: White polycarbonate V-0 rated to UL94 - Terminals: Nickel plated stainless steel
Apollo Discovery Carbon Monoxide Detector - 58000-300APO