6500 AND 6500S BEAM DETECTOR

The 6500S and 6500 are addressable reflector- type linear optical beam smoke detectors that can be directly connected to an analogue loop circuit as a component of an intelligent fire alarm system. The detectors have a range of 5m to 70m, extending to 100m with a long-range reflector kit.

The 6500S and 6500 detectors are combined transmitter/ receiver units. The Infrared transmitter generates a beam of light towards a high efficiency reflector. The reflector returns the beam to the receiver where an analysis of the received signal is made. The change in the strength of the received signal is used to determine the alarm condition.

The 6500S features a unique remote test capability that fully tests both the optics and the electronics of the device. An optical filter is automatically introduced in front of the optics, attenuating the returned beam and causing the unit to go into alarm.

Both versions incorporate automatic drift compensation, whereby the detector will adjust its detection thresholds in line with any long-term signal reduction of the beam caused by contamination of the optical surface.

The 6500 and 6500S also include built in short circuit isolators (which may be wired out if required), reducing the number of isolators required in the detection circuit.

Tested and approved to EN54-12: 2002

Specifications

 

Voltage Range:

15 to 32VDC,

 

or 15 to 28.5VDC if isolators used.

Standby Current:

2mA at 24VDC (no communications)

Max Alarm Current:

8mA

Temperature Range:

-30°C to 55°C

Humidity:

0 to 95% RH (Non-Condensing)

IP Rating:

IP54

Detector Dimensions:

254mm x 190mm x 84mm (h x w x d)

Reflector Dimensions:

200mm x 230mm (for 5-70m)

Weight:

1770g

REMOTE TEST SWITCH

In the conventional version of the beam detector, an optical filter is activated from ground level by a hard-wired connection; in the addressable model it is initiated by a command from the fire control panel to the servo motor. The filter attenuates the beam, causing the unit to go into alarm. This test process provides a complete check of every component in the alarm path without the need for access at high level.

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Note: This document is based on the recommendations of BS5839 Part 1: 2002. It is intended only as a guide to the application of fire detection systems.

Reference must be made to relevant national and local standards.

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System Sensor BS5839 manual 6500S Beam Detector, Remote Test Switch
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BS5839 specifications

System Sensor BS5839 is a standard that pertains to fire detection and alarm systems, providing guidelines for the design, installation, and maintenance of these essential safety tools. It is crucial for safeguarding lives and property, ensuring that fire detection systems are effective and reliable. The BS5839 standard, established in the UK, covers a wide range of fire alarm system types, including conventional, addressable, and wireless systems.

One of the main features of BS5839 is its comprehensive classification of fire detection systems. The standard divides systems into categories based on the level of risk and the environment in which the system will operate. This classification helps ensure that the system installed meets the specific needs of the building and its occupants. For example, Category L systems are meant for life safety, while Category P systems are designed to protect property.

The technologies underpinning BS5839 include various types of detectors, alarm devices, and control panels. Smoke detectors, heat detectors, and multi-sensor detectors are prominent among the devices specified in the standard. Smoke detectors use photoelectric or ionization principles to detect smoke and signal an alarm, while heat detectors respond to temperature changes. Multi-sensor detectors combine both smoke and heat detection technologies to provide a more reliable response to fire conditions.

Another key characteristic of BS5839 is the emphasis on regular testing and maintenance. The standard outlines procedures to ensure that systems remain operational and effective over time. This includes routine system checks, functional testing, and more in-depth inspections at regular intervals. Ensuring that systems are maintained according to BS5839 is vital for compliance with insurance requirements and for safeguarding against potential legal liabilities.

Furthermore, BS5839 highlights the importance of staff training and awareness. It emphasizes that personnel responsible for fire safety must be adequately trained in the operation and response to fire alarm systems. This ensures that in the event of a fire, occupants are prompted to take appropriate action and evacuate safely.

In summary, System Sensor BS5839 provides a crucial framework for fire detection and alarm systems. Its classification of systems, incorporation of advanced technologies, and emphasis on maintenance all contribute to enhanced safety and compliance, protecting lives and property effectively.
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