Siemens FDT181 User manual

Building Technologies
Fire safety and security products
FDT181 Heat Detector
Product Manual
Overview
The heat detector FDT181 is an intelligent detector. It is used for early fire detection
inside a building.
Characteristics
– With built-in CPU, signals received are processed by intelligent algorithm
– Two operation modes: A2S/A2R
– Automatically address setting without encoder setting or DIP switch
– All-around visible alarm indicator
– Resistant to environment and interference factors such as humidity, corrosive and
vibration, with immunity against electro-magnetic interference.
– Communication via FD18-BUS, polarity free connection
– “Sticker Method” easy for commissioning
Functions
– The detection behavior of the detectors is influenced by the operation mode, so that
it can be specifically adjusted according to the environment to be monitored
– Unique ID of each detector, controller can identify the detector type according to the
ID and assign address

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Application
– Suitable for use in places where the ambient temperature can change rapidly or
smoke detector are not suitable
– Dust cap protects the detector from being contaminated by construction work
Indicator
The detector is provided with an internal alarm indicator to show its operating status.
Status
Indicator
Normal
Off
Flashing when connected with FC1840-A3 (for Russian).
Locate/Test
Flashing
Alarm
Steady on
Installation
Easy and time-saving mounting
Install the base and finish the wiring during the construction phase.
1. Point the retaining nest to the positioning pointer and insert it into the base.
2. Turn it clock wisely until it stops.
Uninstallation:
1. Turn it counterclockwisely until it stops.
2. Pull the detector out.
After all the construction is finished, the dust cap must be taken away!
Dimensions
In：mm（with base）
Detector
Retaining nest
Base
Positioning pointer

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Connection diagram
51a
6 1b
To next base
Terminal resistor
is not necessary
To controller
FDB181 Base
PP
S
S
Maintenance
Performance test
Recommendation:
– Submit all detectors to an annual visual check. Detectors that are strongly soiled or
mechanically damaged must be replaced.
– Any detectors should be replaced after 7 to 10 years of service, independent from
the environmental conditions.
– Long term auxiliary detectors should be stored with plastic bag.
– Carry out heat test each year.
Technical data
Operating voltage
12 … 32 VDC
Operating current (quiescent)
0.26 mA
Activation current
1.2 mA
Operating temperature
–10 ... +50 °C
Storage temperature
–20 ... +75 °C
Humidity
≤96% (40±2 ℃)
Communication protocol
FD18-BUS
Load factor
1
Color
White, RAL 9010
Protection category EN60529 / IEC529/GB4208-93
IP44
Approval (for Russian) TR RF N123-FZ
Details for ordering
Type
Material No.
Part No.
Designation
Weight
FDT181
S54320-F3-A1
100856212
Heat detector
0.064Kg
FDB181
S54320-F1-A1
100856213
Detector base
0.027Kg
A5Q00022001
100566011
FDT181 dust cap

Beijing Siemens Cerberus Electronics Limited
No.1,Fengzhidonglu, Xibeiwang, HaiDian District,
Beijing, 100094, China
Tel: [phone]
Fax: [phone]
© Data and design subject to change without notice.
Doc No.
A6V10326261_d_en_--
Manual FD18
Edition
07.2012
100858265