Fire Alarm Systems | AVENAR detector 4000

AVENAR detector 4000

u Highly reliable and accurate thanks to Intelligent

Signal Processing (ISP)

u Earliest detection of lightest smoke with dualoptical

versions (Dual-Ray technology)

u Monitors environment for electromagnetic influence

for fast root-cause analysis

u Automatic and manual addressing

AVENAR detector 4000 is a new range of automatic fire

detectors featuring a superb accuracy and swiftness in

detection. The versions with two optical sensors

(dual‑optical) are able to detect the lightest smoke.

The range includes versions with rotaries, manually

and automatically addressable, and versions without

rotaries for automatic address setting.

Functions

Sensor technology and signal processing

The individual sensors can be configured manually, or

timer-based via the LSN network.

All sensor signals are analysed continuously by the

internal evaluation electronics (ISP - Intelligent Signal

Processing) and are linked with each other via an

inbuilt microprocessor. The link between the sensors

means that the combined detectors can also be used

where light smoke, steam or dust must be expected

during the course of normal operation.

Only if the signal combination corresponds to the

characteristics of the application site, selected during

the programming, the alarm is triggered automatically.

This results in less false alarms.

In addition, the time of the sensor signals on fire and

fault detection is analysed, which leads to high

detection reliability for each individual sensor.

In the case of the optical and chemical sensor, the

response threshold (drift compensation) is actively

adjusted. Manual or time-controlled switch-off of

individual sensors is required for adjustment to

extreme interference factors.

Optical sensor (smoke sensor)

The optical sensor uses the scattered-light method.

An LED transmits light to the measuring chamber,

where it is absorbed by the labyrinth structure. In the

event of a fire, smoke enters the measuring chamber

and the smoke particles scatter the light from the LED.

The amount of light hitting the photo diode is

converted into a proportional electrical signal.

The dual-optical versions use two optical sensors with

different wavelengths. The Dual-Ray technology works

with an infrared and a blue LED so that lightest smoke

is detected fast and reliably (TF1 and TF9 detection).

Thermal sensor (temperature sensor)

A thermistor in a resistance network is used as a

thermal sensor from which an analog-digital converter

measures the temperature-dependent voltage at

regular intervals.

Depending on the specified detector class, the

temperature sensor triggers the alarm status when the

maximum temperature of 54 °C or 69 °C is exceeded

• In LSN classic mode connectable to the LSN fire

panels BZ 500 LSN, UEZ 2000 LSN, UGM 2020 and to

other panels or their receiver modules with identical

connection conditions, although with the previous

LSN system parameters

• During planning works, it is essential to adhere to

national standards and guidelines.

• The detector can be painted (cap and base) and

thereby adapted to the surrounding colour scheme.

Note the information in the Painting Instructions.

• Detectors of the 420 series can be replaced by all

versions of the AVENAR detector 4000 without reconfiguring

the panel.

Installation/configuration notes in accordance with

VdS/VDE

• The FAP‑425-DOTC-R, FAP‑425-DOT-R, FAP‑425-OT-R,

and FAP‑425-OT versions are planned in accordance

with the guidelines for optical detectors if operated

as optical detectors or as combined optical/thermal

detectors (see DIN VDE 0833 Part 2 and VDS 2095)

• If occasional deactivation of the optical unit

(scattered light sensor) is required, planning must be

based on the guidelines for heat detectors (see

DIN VDE 0833 Part 2 and VDS 2095)

• When planning fire barriers according to DIBt, note

that the heat detector (FAH-425-T-R) must be

configured in accordance with class A1R.

Parts included

Detector

version

Qt

y.

Components

FAP-425-

O-R

1 Optical smoke detector with rotaries

FAP-425-

OT-R

1 Multisensor detector optical / thermal with rotaries

FAH-425-

T-R

1 Heat detector (thermal differential / thermal

maximum) with rotaries

FAP-425-

DO-R

1 Dual-optical smoke detector with rotaries

FAP-425-

DOT-R

1 Multisensor detector dual-optical / thermal with

rotaries

FAP-425-

DOTC-R

1 Multisensor detector dual-optical / thermal /

chemical with rotaries

FAP-425-

O

1 Optical smoke detector without rotaries

FAP-425-

OT

1 Multisensor detector optical / thermal without

rotaries

Technical specifications

Electrical

Operating voltage 15 V DC to 33 V DC

Current consumption < 0.55 mA

Alarm output Per data word by two-wire signal

line

Indicator output Open collector connects 0 V over

1.5 kΩ through, max. 15 mA

Mechanics

Dimensions

• Without base Ø 99.5 x 52 mm

• With base Ø 120 x 63.5 mm

Housing

• Material Plastic, ABS (Novodur)

• Color White, similar to RAL 9010,

matt finish

Weight Without / With packaging

• FAP-425-DOTC-R Approx. 85 g / Approx. 130 g

• FAP-425-DO-R, FAP‑425-

DOT-R

Approx. 80 g / Approx. 120 g

• FAP-O-425-R / FAP‑425-

OT-R / FAH‑425-T-R

Approx. 80 g / Approx. 120 g

• FAP-425-O / FAP-425-OT Approx. . 75 g / Approx. 115 g

Environmental conditions

Permissible operating

temperature

• FAP-425-DOTC-R -10 °C to +50 °C

• FAP-425-DOT-R /

FAP-425-OT-R /

FAH‑425-T-R /

FAP-425-OT

-20 °C to +50 °C

• FAP-425-DO-R /

FAP-425-O-R /

FAP‑425-O

-20 °C to +65 °C

Permissible storage

temperature

• FAP-425-DOTC-R -20 °C to +50 °C

• All versions (except for

FAP-425-DOTC-R)

-25 °C to +80 °C

Permissible relative humidity 95% (non-condensing)

Permissible air speed 20 m/s.

Protection class as per

EN 60529

IP 40,

IP 43 detector base with damp

room seal

Further characteristics

Response sensitivity

• Optical part In accordance with EN54-7