Siemens FDT181,FDB181 Product 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 and particularly suitable for use in places where other types of
detectors are not suitable because they can be misled by the smoke, dust and gas
generated during work there.

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, electro-magnetic

interference, corrosive and vibration.

– Communication via FD18-BUS, polarity free connection
– “Sticker Method” easy for commissioning

Functions

– The detection behavior of the detectors is influenced by the parameter sets, so that it

can be specifically adjusted to the fire phenomena and environmental conditions to
be expected in 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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Building Technologies A6V10214490_a_en_--

Fire safety and security products 03.2010

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.
(See table）

Detector Indicator

Normal Off
Locate/Test Flashing
Alarm Steady on

Installation

l 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