EDS RK 90 R Betriebsanweisung PDF herunterladen (Seite 11)

EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE

7 - OPTICAL ALIGNMENT

7.1 - proceed with the optical alignment of the detector and FX reflector. To facilitate the operation we

suggest to do it in low ambient light conditions and to proceed in the following way:

• place in front of the reflector FX.. (fig.3) an optical alignment lamp able to project a narrow and

sufficiently intense light beam. (we recommend the EDS alignment lamp LAL02)

• direct the light beam of the lamp to the lenses of the detector

• look at the screen that is behind the lens, inside the detector.

On it you will see a bright point that represents the image of the lamp

• move the optical block using his special screws V1-V2-V3 with a key, so that the bright point falls in

the center where a small hole is present through which the photodiode is visible (fig.4).

It’s important that the bright point falls on the photoemitting zone of the photodiode.

This zone is represented by the small dark dot in the center of the photodiode. In such way the

detector will be perfectly alligned with the FX.

After doing the optical alignment of the detector it is necessary to do the electric signal setting operations,

proceding with the following instructions.

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EDS RK 90 R Betriebsanweisung Seite 11