> Optical beam detectors as part of a fire alarm system
> Source: https://pap.fi/en/tuote-osasto/paloilmoitinjarjestelmat/kenttalaitteet/linja-ilmaisimet/
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# Optical beam detectors as part of a fire alarm system

An optical beam detector detects smoke from the attenuation of a light beam. The solution is particularly worth considering for large, open spaces where smoke detection is to be provided along a longer monitoring line.

[Request a quote](https://pap.fi/en/tarjouspyynto/) [+358 40 668 7641](tel:+358406687641)

PAP Group’s range includes beam detectors and their accessories. We help you assess whether the solution is suitable and how it connects to the site’s fire alarm system.

## How does a beam detector differ from a point detector?

A point detector senses smoke at its own location. An optical beam detector, on the other hand, monitors the path of a light beam between a transmitter and a receiver, or by means of a reflector.

When smoke attenuates the beam sufficiently, the detector raises an alarm according to its settings. The right implementation depends on the structure of the space and on how the monitoring line can be positioned.

## Taking spaces and conditions into account

Beam detection is used, for example, in open spaces such as large halls and warehouses. The design takes into account a clear line of sight for the beam, mounting points, the conditions and the features of the chosen device.

Not all large spaces are alike. That is why the solution is compared against the needs of the site rather than chosen on floor area alone.

## Detectors, accessories and help with your choice

In this product group you will find beam detectors and compatible accessories. Our sales team helps you choose a compatible set of equipment and prepares a quote.

Tell us the dimensions of the space, its use and your existing system. Floor plans and information on the structure of the space make it easier to assess a suitable solution.

[Ask about beam detectors](https://pap.fi/en/yhteydenotto/?aihe=myynti)

Sales

A new system, an extension or a quotation? Ask our sales team.

[+358 40 668 7641](tel:+358406687641) [myynti@pap.fi](mailto:myynti@pap.fi)

Technical support [+358 40 668 7643](tel:+358406687643) [tuki@pap.fi](mailto:tuki@pap.fi)

## Product groups and products

### [Panasonic 1040-000 single reflector prism adjustment bracket](https://pap.fi/en/tuote/panasonic-1040-000-single-reflector-adjust-bracket/)

Product code 41613

Adjustment bracket for one Fireray reflector prism. Used with reflective beam detectors when the reflector must be aimed towards the detector.

### [Panasonic 1141-000 ceiling mount for end-to-end beam detector](https://pap.fi/en/tuote/panasonic-1141-000-end-to-end-detect-ceiling-mount/)

Product code 41616

Ceiling mount for an end-to-end detector. The mount has a 200 mm (8-inch) drop rod and is suitable for one-way or two-way applications. Detector not included. For two-way use, additional bracket 3000-202 is required.

### [Panasonic 1050-000 adjustment bracket for four reflector prisms](https://pap.fi/en/tuote/panasonic-1050-000-4-reflector-adjustment-bracket/)

Product code 41614

Prism plate and adjustment bracket for four prisms (prisms not included). Provides 360° rotation and 98° adjustment.

### [Panasonic 1060-000 anti-condensation heater](https://pap.fi/en/tuote/panasonic-1060-000-anti-condensation-heater/)

Product code 41609

Anti-condensation heater: a 24 V (AC or DC), 20 W heater that reduces condensation on the lens of the Fireray One detector. Detector not included.

### [Panasonic 1100-000 protective cage for Fireray One detector](https://pap.fi/en/tuote/panasonic-1100-000-protective-cage/)

Product code 41611

Protective cage for the Fireray One detector. Mounted either on the 1260-000 back box or on a flat surface.

### [Panasonic 1140-000 ceiling mount for reflective beam detector](https://pap.fi/en/tuote/panasonic-1140-000-reflective-detect-ceiling-mount/)

Product code 41610

Beam detector ceiling mount (white). Suspension bracket for reflective detector heads. The ceiling mount has a 300 mm (12-inch) drop rod, which can be used to install a Fireray One or Fireray 5000 detector head.

### [Panasonic 1150-000 commissioning and maintenance kit](https://pap.fi/en/tuote/panasonic-1150-000-commissioning-and-maintenan-kit/)

Product code 41615

Commissioning and maintenance kit for testing fire and fault conditions after installation (includes a cleaning cloth).

### [Panasonic 1170-000 Fireray detector adjustment bracket](https://pap.fi/en/tuote/panasonic-1170-000-fireray-detector-adjusment-brac/)

Product code 41608

Adjustment bracket for Fireray One, 5000 and 3000 models. Provides 360° rotation and 130° adjustment.

### [Panasonic 23901.01 reflector prism](https://pap.fi/en/tuote/panasonic-23901-01-reflective-prism/)

Product code 41612

Prism for reflective infrared beam detectors.

### [Panasonic 3000-015 Fireray 3000 additional detector pack](https://pap.fi/en/tuote/panasonic-3000-015-fireray-3000-detector-pack/)

Product code 41605

Additional detector pack for the Fireray 3000 beam detector: transmitter and receiver without a controller. Used to connect a second detector line (5–120 m) to the same controller.

### [Panasonic 3000-026 Fireray 3000 Ex d additional detector pack](https://pap.fi/en/tuote/panasonic-3000-026-fireray-3000-exd-detector-pack/)

Product code 41607

Additional detector pack for the Fireray 3000 Ex d beam detector system. The pack contains a flameproof transmitter and receiver with brackets for connecting a second detector pair to the same controller.

### [Panasonic 3000-115 Fireray 3000 Ex d, ATEX](https://pap.fi/en/tuote/panasonic-3000-115-fireray-3000-exd-atex/)

Product code 41606

Flameproof end-to-end beam detector system for smoke detection in large hazardous areas. The system comprises an Ex d transmitter and receiver and a controller installed in a safe area.

### [Panasonic 3000-204 anti-condensation heater for Fireray 3000 detector](https://pap.fi/en/tuote/panasonic-3000-204-anti-condensation-heater-3000/)

Product code 41617

Anti-condensation heater for the transmitter and receiver of the Fireray 3000 beam detector. Prevents fogging and condensation on the detector heads in changing conditions.

### [Panasonic 3401-205 prism heater](https://pap.fi/en/tuote/panasonic-3401-205-prism-lammitin/)

Product code 41582

Heater for beam detector prisms. 24 V AC/DC.

### [Panasonic 3404 Fireray long range kit](https://pap.fi/en/tuote/panasonic-3404-fireray-long-range-kit/)

Product code 41601

Long range kit containing 3 reflective prisms. Intended for use with Fireray 5000 and Fireray One detectors to achieve a range of up to 100 metres.

### [Panasonic 3406 Fireray 3000](https://pap.fi/en/tuote/panasonic-3406-fireray-3000/)

Product code 41604

End-to-end infrared beam detector for smoke detection in large and high spaces. The system comprises a transmitter, a receiver and a controller installed at low level.

### [Panasonic 3411 Fireray One beam detector](https://pap.fi/en/tuote/panasonic-3411-fireray-one-linjailmaisin/)

Product code 41585

Reflective motorised beam detector that automatically aligns itself to the reflector. The stand-alone detector suits, for example, warehouses and other large spaces where maintaining ceiling detectors is difficult.

### [Panasonic 3414 Fireray Hub beam detector](https://pap.fi/en/tuote/panasonic-3414-fireray-hub-linjailmaisin/)

Product code 41586

Reflective optical beam detection system in which up to three motorised detectors are controlled and tested from a controller mounted at ground level. For smoke detection in large spaces such as atriums, warehouses and halls.