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EXPLOSION-PROOF EQUIPMENT
Analog-addressable system “Dialog-Ex”
Non explosion-proof DEVICES
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- Dialog-Ex System
Dialog-Ex SystemPrint
Effective security and fire alarm system = Analog-addressable system! Fire alarm systems can be divided into three different classes: non-addressable, addressable and analog-addressable Addressable does not mean analog-addressable! In non-addressable and addressable systems “fire decision” is made by the annunciator itself and then it is transmitted to the control and indication unit. In analog-addressable systems values of the parameter (temperature, smoke content) monitored by the annunciator are transmitted to the CIU. The CIU constantly monitors ambient conditions in all the premises and on the basis of these data makes decision not only on generation of “Fire” signal, but also on generation of “Warning”, “Fault” and other signals. The “decision” is made not by the annunciator but by the control and indication unit. The AAS constantly monitors ambient conditions in the premise promptly detecting start of temperature (or smoke content) change and sends a warning signal to the console. Therefore, the AAS provides early detection of fire. This means that fire can be easily extinguished thus minimizing possible losses for the facility. In analog-addressable devices offer a possibility to individually set not only “Fire” and “Warning” signal generation levels for each annunciator but also to define algorithms of their combined operation. This means that the AAS can create an optimal fire alarm system at a facility because it allows creating early fire detection system in the most appropriate way for each facility taking into consideration its individual features. Dialog-Ex - Analog-addressable system for explosive areas: Number of devices in the loop: up to 225. This allows considerable cost reduction during installation of the system and use of annunciators powered by the loop reduces costs for laying new lines of alarm system by half as a minimum. In accordance with the safety requirements, where installation of two annunciators is necessary in case of non-addressable loop, in addressable loop one analog-addressable annunciator is enough. Besides, use of different address marks provides possibility to use a wide range of non-addressable devices and to control and monitor operation of the facility’s automatic fire fighting and engineering systems of any complexity level by simply updating and building up the existing explosive area safety system to up to 128 addressable loops. Annunciator performance monitoring (system survivability No. 1). In Dialog-Ex AAS there cannot by any faulty annunciator not detected by the CIU. By way of data exchange with each device in sequence, the device conducts polling via Dozor-07a protocol every 3 seconds. As a result of each device polling, new information on the status of each location of addressable annunciators and external devices, their condition, thus providing continuous monitoring of the facility and system elements.
System programming Possibility to modify sensitivity of the sensors depending of the ambient or operation conditions. Integration of zero-address devices in Dialog-Ex system Zero-address devices can be easily integrated into the system. It is done by means of installation of corresponding address marks. But this does not grant these devices the analog function. Integration of Dialog-Ex into global security systems of an enterprise. Dialog-Ex AAS on the basis of Dozor 1A device provides possibility of integration into “top-level” security systems such as “Intellect” and “Eselta”. Dialog-Ex System  20 ноября 2015 Все новости |
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