Prepared By: Peter Brandt Version: 08 – 20080415
Page
24 of 26
40-6640 Service Manual
5.0 Alarm Adjustment
After one or more calibrations have been completed, if may be necessary to adjust the alarm range.
If the alarm rod is not centered within the alarm loop, make adjustments as follows:
1.
Remove all housing to clearly view the top portion of Central Unit Assembly (see Fig. 5-A).
2.
Loosen the 3 screws on the Alarm Loop Circuit Board (outer ring) and move the circuit board until the alarm
rod is centered inside the alarm loop. Tighten the screws and attach all housing.
Fig. 5- A Top view of Central Unit Assembly
Three Screws
Alarm Loop
Alarm Rod
NOTE:
If alarm rod needs to be further centered beyond adjusting the outer circuit board, the inner circuit board (holding
alarm rod) can be loosened and adjusted. This will help only for minimal further adjustment.
[As a final alternative, the loop can be manually forced to center over the rod. CAUTION: This should be done
only in limited manner and very carefully to avoid breaking the solder connection. If connection is broken,
soldering must be done to repair the alarm loop attachment.]
