Apollo Smoke Detectors

Apollo Series 60

These detectors comply with EN54 (BS5445) and are designed to UL standards.

Apollo Ionisation Smoke Detector
Comprises an ionisation chamber with a radioactive isotope housed within a case with wind resistant inlets. When smoke particles enter ionisation chamber, ions become attached to them with the result that the current flowing through the chamber decreases. This causes the sensing electrode to go more positive which produces an alarm signal when a preset threshold is reached. Bases must be ordered separately.

  • Ionisation smoke detector

Apollo Optical Smoke Detector
The optical detector is based on a sensing chamber and a printed circuit board. Within the chamber is an infra red light emitting diode (LED) and a photo-diode which detects smoke particles entering the chamber. Bases must be ordered separately.

  • Optical smoke detector

Apollo Heat Detector

Grade 1 and Grade 2
The heat detector contains a pair of matched negative temperature coefficient thermistors mounted on a printed circuit board. One is exposed and in thermal contact to the surrounding air whilst the other is insulated.

The Rate of Rise Principle
If the air temperature increases rapidly, the change of temperature results in a change in resistance between the thermistors. When the ratio of resistance exceeds a factory preset level, an alarm is initiated.

Grades
Detectors are classified by EN54 according to the fixed upper temperature range and response times, with Grades 1 at 60°C and 2 at 65°C designed for most normal applications.

  • Heat detector - Grade 1 - 60°C
  • Heat detector - Grade 2 - 65°C

Apollo Detector Mounting Bases

* All Series 60 detectors plug easily into the base with a simple clockwise motion
* Detectors have four stainless steel wipers at the top of the housing which make electrical contact with the double terminals in the base
*100mm diameter base
* A base with or without diode is available (base supplied with diode on line 1, for conventional systems that are designed to operate correctly when one or more detector heads have been removed)
* Earth terminal provided for easier installation - not required by the detector head

  • Mounting base with diode
  • Mounting base without diode

Hochiki CDX Series

The CDX range, are fully compatible with existing conventional panels. The Photoelectric Detector incorporates 'Flat Response Technology' enabling it to be equally sensitive to a wider range of combustible materials, thus removing the need for ionisation detectors in the majority of applications.

Hochiki Photoelectric Smoke Detector

The detection chamber consists of an LED and photo-diode arrangement. The chamber is designed so that light emitted by the LED cannot normally reach the photo-diode.
When smoke particles enter the chamber the light is scattered and some of this light falls on the photo-diode. This is converted into an electronic signal, filtered and then used to trigger the internal latching latching circuit. The chamber is easily removed or replaced for cleaning and utilises a unique baffle design which allows smoke to enter the chamber while keeping out ambient light.

  • Photoelectric smoke detector - (SLR - E)

Hochiki Ionisation Smoke Detector

A single radioactive source ionises two chambers which allows a small DC current to flow between the electrodes in each chamber. Smoke can freely enter the outer chamber whilst the inner chamber is virtually sealed. Smoke entering the outer chamber causes a reduction in the DC current, the imbalance between the two currents is proportional to smoke density which is converted, filtered and then used to trigger the internal latching circuit.

  • Ionisation smoke detector - (SIJ - E)

Hochiki Heat Detector

The Heat Detector incorporates a highly linear thermistor circuit, with the thermistor being mounted externally. A voltage is produced proportional to temperature. This is scaled, linearised and then used to trigger the internal latching circuit. Different colour fire LED's are used to distinguish between the Fixed Temperature and Rate of Rise.

  • Fixed temperature (60°C) - (DFJ - 60E)
  • Fixed temperature (90°C) - (DFJ - 90E)
  • Combined heat (90°C) - (DCD - RIE)
  • Rate of rise - Grade 1 (60°C) - (DCD - 1E)
  • Combined heat - Grade 2 (60°C) - (DCD - 2E)

Hochiki Mounting Bases

A range of CDX bases are designed to allow Line Continuity, Relay and Remote Indicator functions. The CDX range offers two options for Line Continuity, Schottky (Safeline) and Zener (Liveline), to maintain line continuity once a detector has been removed from the base, thus allowing Call Points and Detectors to generate a fire condition. Control panel compatibility should be verified before either the Safeline of Liveline method is chosen. The CDX Relay Base gives the user a volt free change over contact rated at 30V 1A that will operate when the detector senses a fire condition, and will reset when the zone is reset. The remote indicator base allows the addition of a remote indicator to be connected that will mimic the twin LED's on the detector.

  • Electronics-free mounting base - (YBN - R/4)
  • Remote indicator base - (YBO - R/5)
  • Schottky line continuity base (Safeline) with remote indicator output - (YBO - R/5SK)
  • Zener line continuity base (Liveline) with remote indicator output - (YBO - R/5ZD)