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Apollo Series 65 Ionisation Smoke Detector

£15.33 Ex VAT

0 reward points

  • Model: 55000-217
  • Shipping Weight: 2kgs
  • Manufactured by: Apollo
  • Online
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More info about this product

Series 65 incorporates well-proven sensing technologies, including an Integrated Circuit based on that used in XP95 analogue addressable detectors.

The Series 65 range has a wide operating voltage of 9–33V and consists of ionisation, integrating ionisation and optical smoke detectors, four grades of heat detector and a range of bases.
Brand Features

Wide-operating voltage of 9–33 V DC

Wide-operating and storage temperature of -20°C to +60°C

Can be used on security systems

Electrically and mechanically compatible with Series 60

Proven detection performance
Operation

The detector has a moulded self-extinguishing white polycarbonate case with wind resistant smoke inlets. Nickel plated stainless steel wiper contacts connect the detector to the base.

Inside the detector case a printed circuit board has the ionisation chamber mounted on one side and the signal processing electronics on the other.

The ionisation chamber consists of a reference chamber contained inside a smoke chamber. The outer smoke chamber has inlet apertures fitted with insect resistant mesh. The radioactive source holder and smoke chamber form positive and negative electrodes respectively.

An Americium 241 radioactive source mounted within the reference chamber irradiates the air in both chambers, producing positive and negative ions. A voltage across the electrodes produces an electric field.

Ions are attracted to the electrode of the opposite sign to their own charge. Many recombine but a small electric current flows between the electrodes. At the junction between reference and smoke chambers the sensing electrode converts variations in chamber current into voltage changes.

When smoke particles enter the ionisation chamber ions become attached to them with the result that the current flowing through the chambers decreases. This effect is greater in the smoke chamber than in the reference chamber, and the imbalance causes the sensing electrode to become more positive.

The voltage at the sensing electrode is fed to a comparator where it is compared with a factory-set clean air reference voltage. If the monitored voltage exceeds the reference voltage, the comparator switches the alarm latch on, increasing the current drawn from the supply from about 40μA to a maximum of 75mA. This fall in the impedance of the detector is recognised by the control panel as an alarm signal.


The alarm latch current also illuminates the detector integral LED. A remote indicator connected between the L1 IN terminal and the –R terminal will have a voltage equal to the supply voltage less 1 volt across it and so will illuminate. See page 17 for details of the remote indicator.

To ensure correct operation of the detector the control panel must be arranged to supply a maximum of 33 volts DC and a minimum of 9 volts DC in normal operation.

The supply may fall to 6 volts DC in alarm conditions if a supply current of at least 10mA is available at this voltage. To ensure effective illumination of the integral LED and any remote indicator, the supply to the detector should exceed 12 volts.

To restore the detector to quiescent condition, it is necessary to expel any smoke and interrupt the electrical supply to the detector for a minimum of one second.
Options

(Apply to standard and integrating versions)
1. Flashing LED: The alarm-indicating LED flashes when the detector is in a quiescent state.
2. Magnetic test switch and Flashing LED: A magnetic test switch in the circuit of the detector can be magnetically activated from outside the case to initiate an alarm condition for test and commissioning purposes. A flashing LED, as outlined above, is also included.

General
Applications    

    B&Bs/guest houses
    Cafes
    Restaurants
    Retail
    Small to medium buildings

Fire Type    Fast burning, flaming fires
Warranty    10 year
Performance
Chamber type    Chevron
Electrical
Polarity    L1 & L2 are polarity insensitive
Radioactive isotope activity    33.3kBq
Alarm current (at 24 volts)    52mA
Holding voltage (min)    6V
Minimum voltage to light alarm LED    12V
Alarm reset time    1s
Alarm load    420Ω in series with 2V drop
Environmental
Humidity (min)    0% RH
Humidity (max)    95% RH
Humidity Note    no condensation or icing
Humidity    0% to 95% (no condensation or icing)
Operating temperature (min)    -20°C
Operating temperature (max)    60°C
Operating temperature    -20 to 60°C
Storage temperature (min)    -30°C
Storage temperature (max)    80°C
Storage temperature    -30 to 80°C
Conformance
Standards    EN 54-7
Approvals    

    BfS
    CPD
    FG
    LPCB
    SBSC
    VdS

Mechanical
Weight    102g
Colour    White
Materials housing    Polycarbonate
Materials terminals    Nickel plated stainless steel
Product length    42mm
Product diameter    100mm
Detection principle    Ionisation chamber.
 


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