Fike 402 0006 Twinflex Manual Call Point with a Resettable Plastic Element for 2 Wire Fire Alarm System

The specifiers and the installers who choose the Multipoint detector do so secure in the knowledge that the fire detection performance of the detector can be matched to the environment in which it is installed –and changed at any time during the lifetime of the installation. With the Sita 200 plus System, a high technology approach has been adopted, with a microcomputer in each detector implementing a large degree of distributed intelligence. The system can support 200 Multipoint combined detectors/sounders on a single loop. Each one not only provides detection but also the option of a built-in sounder. Integrity of the system is maintained by way of a built-in isolator in each device. The Rafiki Sita system intelligence has been harnessed in such a way that the equipment used is very easy to install, commission, and maintain. The system has been designed to high specification and quality standards and is intended to fully comply with the new EN54 -2 and EN54 - 4 standards and EU directives. Rafiki Multipoint Sita - Main Features Fast short circuit isolator in every device; 15 combinations of smoke & heat detection modes; Multi-stage alarms - pre-alarm feature; 7 sound patterns - plus off, 3 different volume settings – if using Sita Multipoint with integral sounder; Auxiliary digital inputs and outputs are available at any Addressable Multipoint device; Automatic continuous self-calibration; Addressable Multipoint detector is monitored for all failures of the sensor chamber - a warning is indicated when a smoke detector head requires servicing; Maintenance is made easy with the unique disposable optical chamber, designed as a cost-effective solution to cleaning and re-calibration; All modes are compliant with European detector-type specifications, and are suitable for use in installations compliant with BS5839: Part 1: 2002; More details about the Rafiki Multipoint: eliminate the false alarms; more on the Rafiki detectors; The Multipoint Detector; new Multipoint ASD detectors, and the modes of detection. Rafiki Multipoint Sita - Modes of detection SMOKE 1: Highly thermally enhanced optical Used where ionization detectors are normally fitted, especially when there are high ceilings or risk of free-burning fires SMOKE 2: Thermally enhanced optical Used where optical detectors are normally fitted, when there is a risk of a smoldering fire and for escape routes. SMOKE 3: Thermally enhanced optical with pulse rejection Used where optical detectors are normally used in positions exposed to brief concentrations of water vapor or smoke e.g. from a bathroom, kettle etc. HEAT 1: Rate of rise to 58°C Used where a standard rate of rise detector would normally be used HEAT 2: Low fixed temperature 58°C Used where a standard fixed temperature heat detector would normally be fitted, suitable for kitchens, etc HEAT 3: High fixed temperature 90°C Used where a high fixed temperature heat detector would normally be fitted, suitable for boiler rooms, etc. Combinations Any combination of smoke and heat modes may be selected, and differing alarm responses selected for each mode. If the Multipoint with an integral sounder is required, then it too can be set to a choice of 7 different sound patternsBuy Fike Fire Detectors at Sparks

This article is the continuation of the, new Multipoint ASD detectors from Rafiki(short introduction) previously posted on our blog. Via this article you can find out more about the automatic calibration and the modes of detection offered by the Rafiki MultiPoint detectors (heat and smoke detection modes). All modes are compliant with European detector type specifications, and are suitable for use in installations compliant with BS5839: Part 1: 2002, Part 6 2004 if used in conjunction with a "Twinflex Plus" system. The Twinflex Intelligent conventional detector can be set to any one of the smoke or heat detection modes as well as a Combined Mode (Smoke 2 & Heat 2) where a smoke or heat source can trigger a fire decision. This means the end user is given optimum fire protection, even if the installer is unsure of the use of the particular area where the detector is sited. As part of the Twinflex system, all the Twinflex products including the Twinflex Multipoint detector feature an End of Line monitoring switch, which negates the need to install End of Line monitoring resistors. The Sita Intelligent addressable detector is able to offer all the choices for detection or a combination of any listed to give a choice of up to 15 different settings. It is set via a PC when programming the system. The Sita Multipoint also has an in-built loop isolator as well as an input/output facility for local control and switching. The Multipoint Detector also has the unique benefit of an optional full-specification integral sounder. A 90dBA output can be achieved. The Twinflex Intelligent two-wire detector can be set to 3 different sound patterns, as well as switched off, with 2 sound output levels. The Sita Intelligent addressable detector has 7 different sound patterns and 3 volume settings. Automatic Calibration To ensure the detection capabilities of the Multipoint are never compromised it self-calibrates every 6 hours. It continuously monitors for dust contamination, until, over a period of time, depending on the environment, it reaches a point where the chamber becomes saturated. Before this can develop into a false alarm situation, the panel will indicate that a Multipoint needs attention on both the Twinflex and Sita systems. To make maintenance easy, the Multipoint features a disposable optical chamber. This means the chamber can be simply thrown away, and replaced economically when necessary. Rafiki Multipoint Reflected Optical Value The Rafiki MultiPoint detector - modes of detection Smoke 1: Used where ionization detectors are normally fitted especially when there are high ceilings or risk of free burning fires (chemical stores etc), or fires that need to be detected extremely quickly. Smoke 2: Used where optical detectors are normally fitted when there is a risk of a smoldering fire and for escape routes. Smoke 3: This setting is designed for use in areas that are prone to nuisance alarms. The reduced sensitivity linked with a time delay feature means that a higher concentration of smoke needs to be present for a constant time period, before a fire decision is made (Fig 1). This setting, for example, is ideal for hotel bedrooms with ensuite shower rooms, the end user can change the setting from smoke 2 to smoke 3 if nuisance alarms are becoming a problem – whilst still offering optimum protection of a smoke detection setting, especially if this is what has been specified. Heat 1: (Rate of Rise) Used where a standard rate of rise detector would normally be used Heat 2: (Standard Fixed Temperature - 58ºC approx) Used where a standard fixed temperature heat detector would normally be fitted, suitable for kitchens etc Heat 3: (High Fixed Temperature - 90ºC approx) Used where a high fixed temperature heat detector would normally be fitted, suitable for boiler rooms etc. You can read the previous article concerning the new Multipoint ASD detectors from Rafiki - or visit the Rafiki conventional fire alarms section on our website for more models and details. Most of the above specs are taken from the Rafiki Technical Sheet on, The New Multipoint ASD detector from Rafiki.Buy Fike Conventional Fire Alarms