Installation Guidelines; Installation - Siemens LDS 6 Operating Instructions Manual

In situ laser gas analyzers

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Table of Contents

Installation guidelines

4.1

This chapter provides instructions for the installation of the LDS 6, Optics Housing CD 6 and its

cables. The figure below shows the principle set-up of the LDS 6 central unit, optics housings and

cables.

Figure 4-1

Note

Do not install the optics housings unless the purging media is accessible (for optics housings that

require purging). Never leave a optics housing without purging since the wedge optics is easily

damaged.

At installation of the cross duct optics housing, the fiber end and the photo-detector have to be

aligned to the optical axis of the optics housing pair. Note that each optics housing has an optical

axis of its own which is its axis of symmetry. Normally the process flanges are mounted with an

angle error. The optics housings are however, equipped with a flange pair with a spherical

interface. This is used when the optics housing pair is aligned to each other. In this way an angle

error of up to ±2° on each side can be adjusted for.

Installation of optics housings

1. Check that the flanges are installed properly, according to the instructions earlier in this

manual.

2. Mount the optics housings, receiver and transmitter, with gaskets on the flanges and cross

tighten the bolts.

Optics housing cd 6