AS 7240.7:2018 pdf free.Fire detection and alarm systems Part 7: Point type smoke detectors using scattered light, transmitted light or ionization (ISO 7240-7:2018, MOD).
4.3 Individual alarm indication
Each detector shall be provided with an integral red visual indicator by which the individual detector releasing an alarm can be identified, until the alarm condition is reset. Where other conditions of the detector may be visually indicated, these shall be clearly distinguishable from the alarm indication, except when the detector is switched into a service mode. For detachable detectors, the indicator may be integral with the base or the detector head.
NOTE The alarm condition is reset manually at the control and indicating equipment (see ISO 7240-2).
The visual indicator shall be visible from a distance of 6 m in an ambient light intensity up to 500 lx at an angle of up to:
a) 5° from the axis of the detector in any direction, and
b) 45° from the axis of the detector in at least one direction.
4.4 Connection of ancillary devices
The detector may provide for connections to ancillary devices (remote indicators, control relays, etc.), but open- or short-circuit failures of these connections shall not prevent the correct operation of the detector.
4.5 Monitoring of detachable detectors
For detachable detectors, a means shall be provided for a remote monitoring system (e.g. the control and indicating equipment) to detect the removal of the head from the base, in order to give a fault signal.
4.6 Manufacturer’s adjustments
It shall not be possible to change the manufacturer’s settings except by special means (e.g. the use of a special code or tool) or by breaking or removing a seal.
4.7 On-site adjustment of response behaviour
If there is provision for on-site adjustment of the response behaviour of the detector, then
a) for all of the settings at which the manufacturer claims compliance, the detector shall comply with the requirements of this document and access to the adjustment means shall be possible only by the use of a code or special tool or by removing the detector from its base or mounting;AS 7240.7 pdf download.