Measurement Of Path Length; Optics Housing Cd 6 Installation Requirements; The Hybrid And Sensor Connection Cables; Cable Installation Requirements - Siemens LDS 6 Operating Instructions Manual

3.1.3

Measurement of path length

It is recommended that the open end of the purging tubes be the reference points from which
the path length is determined. When the flanges are permanently installed, measure the
distance between the outside of the flanges with an accuracy of at least ±10 mm (±0.4"). This
distance is used to calculate the path length by subtracting the length of the flange tubes and
will later be used in the analyzer when it calculates the gas concentration. In the area where the
purging gas and the measurement gas are mixed there will be a zone of uncertainty. This zone
will depend on the purging flow and the flow of the measurement gas.
3.2

Optics Housing CD 6 installation requirements

The following requirements must be considered before installing the optics housings at the
measurement site.
For systems with purging, do not install the optics housings without access to purging air or
steam. Be sure to have sufficient space around the optics housings, to ensure easy service. There
must be enough space to enable removing of the optics housing lids and adjustment of the
optics housings.
See also
LDS 6, Optics Housing CD 6 dimensions (Page 44)
3.3

The hybrid and sensor connection cables

3.3.1

Cable installation requirements

The following requirements must be considered before installing the cables at the measurement
site.
The hybrid cables should be installed in a way that protects them from mechanical wear such as
sharp edges or moving parts. Operating temperature for the cables is -40 to +80°C (-40 to +
176°F). Installation temperature for the cables is -20 to +80°C (-4 to + 176°F). These
temperatures refer to both ambient temperature and any parts the cables come in contact with.
Always protect the single mode fiber (E2000 connector with green color) from dust. Cables are
supplied with a protective tube at each end and inside these a plastic protective cap for the single
mode fiber.
DO NOT remove the protective tube until the cable is installed and ready to be connected to LDS
6 and Optics Housing CD6. DO NOT remove the plastic protective cap until the cable is routed
inside the LDS 6/Optics Housing CD 6. The protective tubes should only be removed by
authorized personnel.
LDS 6, Optics Housing CD 6
Operating Instructions, 01/2022, A5E01134377-05
CAUTION
Preparations for installation
3.3 The hybrid and sensor connection cables
15