MX575A/B DGPS Compass
21
Orient the MX575
using the gun-sights on the top of the enclosure. Using an
adjustable wrench, tighten the lock nut against the MX575
while ensuring accurate
alignment of the MX575 system.
Figure 24
-
Locking the MX575 once aligned
Note: You will need to tighten the locking nut against the pole mount base tightly. To ensure
that you don’t over tighten the nut, periodically check to see how secure the MX575
system is,
as mounted on the pole. If it’s loose, tighten the lock nut further until you cannot move it.
The top of the MX575
enclosure incorporates a pair of gun-sight design features
for assisting the MX575 alignment. The sights will help you to align the enclosure
with respect to a point of reference on your vessel.
To use the gun-sights, center the small post on the opposite side of the enclosure
from you, pointing towards the direction of forward movement or parallel to the
longitudinal axis of the ship as shown in the figures below. Alignment accuracy
when looking through the long site is approximately
±
1
°
. Using the short site,
alignment is approximately accurate to
±
2.5
°
.
