Compass
STD 22
Installation and Service manual
Compass STD 22 Compact
51
Edition: Feb, 17, 2006
3646/110--233.DOC010302
2.6.4.3
Setting the STD 22 Compact Compass into operation
The compass goes into heating stage for the first 30 minutes (this period will vary
depending on the temperature of the supporting liquid), during which time the course
output of the compass should not be used, and the letter “h” is displayed as the leading
sign on the digital display (see Figure 30).
During the settling in stage (for 4 hours after switching on), the course output of the
compass may be used;
however, the deviation from the actual course may still be
considerable (as well as it is at all connected course receivers).
During this period, an additional dit appears in the digital display of the compass
(see Figure 31).
(The “Quick Settling” option reduces the settling in stage to appr. 1 hour).
After 4 hours from switching on, the compass course may be used.
4 hours after switching on, the compass has a accuracy of <2
°
.
After appr. 5 hours (after switching on), the compass has an accuracy
of 0,1
°
x
1
/
cos
latitude.
h = heating
= current temperature
appr. 30minutes until a
temperature of 45
°
has been
reached.
on the compass
The temperature for the
internal follow up sys-
tem to switch on has
been reached.
Figure 30
: Indications on the compass during the heating stage
