General
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ASD 531, Technical description, T 140 416 en
1.2
Uses and applications
Thanks to the detection method, air sampling by means of a sampling pipe tube network and the good properties of the prod-
uct under extreme ambient conditions, the ASD 531 aspirating smoke detector is used wherever problems can be expected
owing to poorly accessible areas to be monitored or latent disturbance variables during operation such that optimal protection
cannot be guaranteed with conventional point detectors. This includes:
•
Space surveillance:
EDP rooms, ultra-clean rooms, warehouses, hollow floors, protection of cultural assets, transformer stations, prison cells,
etc.
•
Equipment monitoring:
EDP systems, electrical distributors, switch cabinets, etc.
The ASD 531 can also be deployed in areas where normally conventional point detectors are used. Local regulations and pro-
visions must be observed from case to case.
The response behaviour of the ASD 531 has been tested in compliance with EN 54-20, Class A, B and C.
When control-unit-specific alarm transmitters, line monitoring elements etc. are used, the ASD 531 can be connected via its
potential-free change-over contacts to all common fire alarm systems virtually without restrictions.
1.3
Abbreviations, symbols and terms
The following abbreviations, symbols and terms are used in the Technical Description T 140 416. The abbreviations for tube
material and accessories are listed in a separate document: T 131 194 (see also Sec. 5.3).
µC
=
Microcontroller
/ microprocessor
ABS
= Acrylonitrile-butadiene styrene (plastic)
AFS 32
= Air Flow Sensor
AFU 32
= Aspirating Fan Unit
Al
= Alarm
AMB 31
= ASD main board
ASD
= Aspirating Smoke Detector
ASD
PipeFlow
= Calculation software for the sampling pipe, “ASD PipeFlow” as of Version 2.3
BasiConfig
= Commissioning without the “ASD PipeFlow” calculation software
CE
=
Communauté Européenne
(European Community)
DA
= Detection area
Default
= Preset values / settings
DET
= Detector
DIN
= Deutsche Industrie Norm (German industry standard)
DZ
= Detection zone
EDP
= Electronic data processing
EEC
= European Economic Community
EEPROM
= Memory component for system data and ASD configuration
EMC
= Electromagnetic compatibility
EN 54
= European standards for fire alarm systems (Germany = DIN, Switzerland = SN, Austria = Ö-Norm)
Ex-zone
= Area subject to explosion hazards
FACP
= Fire alarm control panel
FAS
= Fire alarm system
Fault
= Fault
Flash
PROM
= Memory component for firmware
Flush mounting /
surface mounting
= Flush mounted / surface mounted
FW
= Firmware
GND
= Supply ground (minus (-) pole)
