CODEL Energy Tech 401 Installation, Operation And Maintenance Manual page 45

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Important - if not in this mode, the gas cell at the source will periodically interrupt the IR
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Issue: A Revision: 1 Date: 24/07/19
Replace the receiver on its purge.
detector levels as viewed from the signal processor.
To change mode on the signal processor the MODE key needs to be pressed
once to access each mode. Enter SET UP MODE (Mode 5) by pressing the
MODE key 4 times. 5 SET UP will then be displayed on the LCD. Press ENTER to
access the mode.
Because mode 5 is used to configure the instrument, a security code is used to
prevent any unauthorised alteration of settings. The default code set at the
factory is 0000. The cursor will flash over the first digit that should be altered
using the arrow keys until the desired number is displayed, press ENTER and the
cursor will move onto the second digit. Similarly alter and press ENTER when the
desired number is displayed. When the fourth digit has been correctly entered
the processor will enter Mode 5.
Within Mode 5 select the CALIBRATE menu using the arrow keys. Press ENTER
when calibrate is displayed.
Once again, use the arrow keys to select DISPLAY DETECTOR LEVELS option and
press ENTER to access. The D1 and D2 detector levels will be displayed.
beam and make alignment difficult.
Adjust the alignment of the receiver by using the adjusting nuts. As for the
transmitter, the alignment is best conducted by adjusting in one plane first, then
in the other. As a 'rule of thumb', it will be observed that the D2 detector level
will be affected to a greater extent by adjustment in one particular plane.
Similarly, the D1 detector level will be affected more by adjustment in the other
plane.
Ref: 100606
Section 4
Commissioning
The next adjustment is done using the
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