Alignment; Figure 12 : Adjusting Nuts Alignment - CODEL Energy Tech 401 Installation, Operation And Maintenance Manual

EnergyTech 401
Operating and Maintenance Manual
4.5
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Figure 12 : Adjusting Nuts Alignment
Page: 44
Allow 30 minutes before conducting the alignment procedure; this ensures that
the source temperature has stabilised.

Alignment

In order for the instrument to operate satisfactorily, the transmitter and receiver
units need to be aligned. A degree of optical redundancy is built-in and normal
duct movements do not affect the operation of the instrument.
First of all, the transmitter and receiver need to be aligned. Remove the receiver
from its purge and align the transmitter so the red light it emits can be seen at
the other side of the duct (through the receiver purge).
receiver and align using, as a guide, the detector levels displayed by the signal
processor in Mode 5. Finally, the transmitter adjustment is 'fine tuned' once
again using the detector levels in Mode 5. All these processes are described
below.
Remove the receiver from its mounting flange. Adjust the alignment of the
transmitter flange until the bright red disc of the transmitter is located centrally in
the field of view, when viewed from the receiver air purge. Use the adjusting nuts
to alter alignment. First adjust in one plane (using opposite nuts) then adjust in
the other plane. Lock the transmitter flange with the locking nuts.
Adjustments to the alignment are made using the four adjusting nuts, and the
flange is locked in position using the locking nuts - these are illustrated in Figure
12.
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Then replace the