AVENAR detector 4000

• Highly reliable and accurate thanks to Intelligent Signal Processing (ISP)

• Earliest detection of lightest smoke with dual-optical versions (Dual-Ray     technology)

• Monitors environment for electromagnetic influence for fast root-cause analysis

• Automatic and manual address setting

Functions

Sensor technology and signal processing
The individual sensors can be configured in the FSP-5000-RPS programming software.
All sensor signals are analyzed continuously by the internal evaluation  (ISP, electronics 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 area of operation, selected during the programming, the alarm is triggered automatically. Additionally the time behavior of the sensor signals is evaluated for fire and malfunction detection. Thus, for each individual sensor the reliability of detection is increased. This complex evaluation of fire characteristics (Pattern matching of fire characteristics) reduces the risk of a false alarm.Active adjustment of the optical or the chemical sensor (drift compensation) takes place. Adjustment to extreme disturbance variables is possible through
manual or time-controlled switch-off of individual sensors.

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 possible for adjustment to extreme interference factors.
All detectors of the AVENAR detector 4000 series are
suitable as a technical measure to avoid false alarms.

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 (thermal maximum), or if the temperature rises by a defined amount within a specified time (thermal differential).

Chemical sensor (CO gas sensor)
The main function of the chemical sensor is to detect carbon monoxide (CO) generated as a result of a fire,but it will also detect hydrogen (H) and nitrous
monoxide (NO). The sensor signal value is proportional to the concentration of gas. The chemical sensor delivers additional information to effectively
suppress deceptive values. Since the service life of the chemical sensor is limited, the C sensor shuts down automatically after a maximum time of operation. The detector will then still operate as a multisensor detector with dual-optical and thermal sensor. It is recommended to exchange the detector immediately in order to keep the higher detection reliability of the version with C sensor. Make sure you have a working detector depending on the chosen sensitivity setting in RPS.

Improved LSN features

AVENAR detector 4000 offers all the features of the improved LSN technology:
• Flexible network structures, including T‐tapping without additional elements (no T-tapping feasible for versions without rotaries)
• Up to 254 LSN improved elements per loop or stub line
• Automatic or manual detector addressing, with or without auto-detection
• Power supply for connected elements via LSN bus
• Unshielded fire detection cable can be used
• Cable length up to 3000 m (with LSN 1500 A)
• Backwards compatibility to existing LSN systems and central units
• Monitoring of environmental electromagnetic impact for fast root-cause analysis (EMC values are displayed on the panel)

In addition, the range offers all the established benefits of LSN technology. The panel programming software can be used to change the detection
characteristics of the respective room utilization. Each configured detector can provide the following data:
• Serial number
• Contamination level of the optical section
• Operating hours
• Current analog values

– Optical system values: current measured value of the scattered light sensor; the measuring range is linear and shows different degrees of
pollution, from slight to heavy.
– Contamination: the contamination value shows how much the current contamination value has increased relative to the original condition.
– CO value: display of the currently measured value.

The sensor is self-monitoring. The following errors are indicated on the fire panel:
• Fault indication in the event of the failure of the detector electronics
• Continuous display of contamination level during service
• Fault indication if heavy contamination is detected
(instead of triggering a false alarm)
In the event of wire interruption or short-circuit,integrated isolators maintain the functional security of the LSN loop. In the event of an alarm, individual detector identification is transmitted to the fire panel.

Further characteristics
• A red flashing LED visible 360° indicates the alarm.
• Connection to a remote indicator is possible.
• The strain relief for cables in false ceilings prevents the cables from being      unplugged accidentally from the terminals after installation. The terminals      for cable cross-sections up to 2.5 mm2 are very easily accessible.
• The detectors have a dust-repellent labyrinth and cap construction. The chamber maid plug (an opening with closing plug) on the bottom is used to
clean the optical chamber with compressed air (not required for the heat detector).
• The detector bases no longer have to be directed due to the centralized position of the individual display. They also have a locking clip. To prevent
that unauthorized persons have access to the detector, the locking clip can be activated.

Regulatory information

Installation/configuration notes

• Connectable to Bosch fire panels with the improved LSN system         parameters.
• Your fire panel has to be equipped with a Panel controller, premium license     or a Panel controller, standard license for using FAP-425-DOTCO-R.
• You cannot use the dual-optical detectors with Panel Controller MPC version    A.
• FAP-425-DOTCO-R excluded, AVENAR detector in LSN classic mode is     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, also 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 re-configuring 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.

Technical specifications

Heed local guidelines. The local guidelines may overrule the given limits for example for the installation height or the monitoring area.

*FAP-425-DOTCO-R detectors need to be exchanged
after 10 years at the latest.