Installation
GasEye Cross Duct
Operating instructions, 05/2021
33
Alignment procedure
The purpose of alignment is to bring the laser light exiting the transmitter to the
receiver mounted on the other side of the process site.
Alignment procedure must be performed with high attention to ensure that the
instrument will carry the measurements correctly.
The alignment tool consists of a pair of lenses that focuses the light from the light
source. The lenses can be moved with respect to each other, hence the spot will differ
in size. The optimal focal point is found when the spot seen on the fine aligning piece
is smallest possible.
Proper alignment is achieved when the focal spot is in the dedicated point of the fine
aligning piece crosshair. Point placement depends on the specific device. The
crosshair with optimal aligning point for particular system can be found on a sticker
under the analyzer lids (receiver lid or transmitter/central unit lid).
Please check whether the flange windows are clean before mounting alignment kit
elements or sensor units. Flange purging is recommended for every installation and
should be operational before installation of the flange on the process. This ensures
that the windows will remain clean during the installation of the flanges.
CAUTION
When releasing the clamp hold the sensor unit to prevent it from falling!
1. Place the light source in
the sleeve and switch it
on. Make sure that the
light source is
operational.
Figure 24. Placing the light source.
2. Proceed to the transmitter side of the instrument.
