GEESYS Building automation system — Home automation system
GEESYS Aspirating Smoke Detection Systems
The VESDA (Very Early Smoke Detection Apparatus) air sampling fire detection system detects the invisible by-products of materials as they degrade during the
pre-combustion stages of an incipient fire. And, by actively and continuously sampling air, the system operates independently of air movements.
In operation air samples are continuously drawn from the monitored environment, typically through a sampling pipe network with the aid of a high efficiency
aspirator. On the way to the fire detector the air samples pass through a filter assembly to screen out large airborne dust particles. Once inside the air
sampling detector the samples are exposed to a high-intensity and broad-spectrum light source. The incident light scattered from smoke particles in the air
sample passes through a series of optical components to a solid state light receiver. The light is converted to an electronic signal and passed to the control
VESDA by GEESYS very early warning aspirating smoke detection solutions with continuous air sampling provide the earliest
possible warning of an impending fire hazard. VESDA ASDs buy the critical time needed to investigate an alarm and initiate an appropriate response to prevent injury, property damage
or business disruption. VESDA detectors have multi-level warnings and a wide range of sensitivity that does not degrade or change over time, so even minute levels of smoke can be
detected before a fire has time to escalate.
All fires have four stages: Incipient (pre-combustion), Visible Smoke, Flaming Fire, and Intense Heat. The incipient stage of smoldering fires provides the widest window of opportunity to detect and control the spread of fire.
VESDA smoke detectors can be configured to generate multiple alarms within this window, to provide the time needed to help minimize or prevent fire loss.
Main Functional Features of The VESDA Laserplus:
VESDA LaserPlus can cover an area up to 2,000 m2 (20,000 sq. ft.)
Wide sensitivity range
Four programmable alarm thresholds
Four pipe Inlets
Individual pipe flow monitoring
Replaceable air filter cartridge
Option for inverted mounting
Recessed mounting option
Modular to meet site specific requirements
Modular Display Module and LCD Programmer
Seven programmable relays
High efficiency aspirator
Programmable general purpose Input
PC capable programming and monitoring
Event log for up to 18,000 events
VESDA Aspirating Smoke Detection Systems
The VESDA product line includes smoke Detectors, Programmers, Displays, Remote Devices, Systems Management Software, Design Software, Power Supplies,
Pipe and Fittings, and a complete assembly of support material.
1. VESDA LaserPLUS
VESDA LaserPLUS is the main product of the VESDA range. It's modular design allows multiple product configurations to more closely meet customer requirements.
All smoke detectors come with a head termination card (HTC) with 7 configurable relays, a configurable General Purpose Input (GPI) and VESDAnet socket. Just some of the configurations possible:
VLP-000, a standard LaserPLUS blank smoke detector
VLP-400, a LaserPLUS smoke detector with Fire and OK LEDs
VLP-002, a LaserPLUS smoke detector with Display module
VLP-012, a LaserPLUS smoke detector with a Programmer and Display module
2. VESDA LaserSCANNER
Similar to VESDA LaserPLUS, however it allows the system to distinguish and identify the pipe carrying smoke, while sampling multiple sectors. The detection of smoke results in the
system locating the sector in Alert. The VESDA LaserSCANNER detector will continue to sample from all sectors to monitor the fire growth and maintain full protection.
Specific display modules are available for the VESDA LaserSCANNER configuration. LaserSCANNER's modular design allows multiple product configurations to more closely meet customer requirements.
All smoke detectors come with a head termination card (HTC) with either 7 or 12 configurable relays, a configurable General Purpose Input (GPI) and VESDAnet socket. Some of the configurations possible:
VLS-300, a standard blank LaserSCANNER detector (12 Relays)
VLS-700, a LaserSCANNER smoke detector with Fire and OK LEDs (12 Relays)
VLS-304, a LaserSCANNER detector with a LaserSCANNER Display module (12 Relays)
VLS-314, a LaserSCANNER detector with a Programmer and LaserSCANNER Display module (12 Relays)
3. VESDA LaserCOMPACT
The newest product in the VESDA product range! Specifically designed for smaller areas, LaserCOMPACT offers a simple and cost effective solution to protect single environments, and small areas, including critical process tools (equipment)
The LaserCOMPACT supports 5 LEDs: Fire, Pre-Alarm/Alert, Fault, OK, Reset/Isolate. It has 3 relays on the termination card plus VESDAnet compatibility (VLC-505 version only). Possible Configurations: VLC-500 (RO), Relays interfacing only
and VLC-505 (VN), Relays and VESDAnet interfacing.
The System Relay Module (SRM)
A cost effective and flexible alternative for system design, a single System Relay Module can report any fault or alarm condition that occurs on the VESDAnet loop, irrespective of its zone. This provides the end user with a variety of secondary reporting options that make early warning more cost effective at locations remote from the Fire Alarm Control Panel (FACP).
Its purpose is to provide the earliest possible warning of an alarm or fault condition of any device on the VESDAnet loop to initiate investigation. For example, where site monitoring is conducted from either a remote gatehouse or central
control room the SRM can be installed to drive a warning alarm or sounder without the need for multiple remote displays and relays.
System Relay Module
Hand Held Programmer
PC Link HLI
Analog Output Module
VESDA Pipe & Fittings
Power Supplies & Batteries
Sub Rack Enclosures
Accommodation (Apartments, Hotels, Shops and Offices)
Data & Telecom
Hospitals and Healthcare
Oil & Gas
Portable Switch Rooms
Wind Power Generation
GEESYS Technologies (India) Private Limited — Expert in General Electrical and Electronics System