Operator manual
110--233
STD22 Compact and STD22
16
3646/110--233.DOC010102
Edition: Feb. 17, 2006
2.1
Switching on the STD 22 Compass
The compass goes into operation when the power supply is switched on from the ship’s
mains.
The compass goes into the heating stage for the first 30 minutes (this period will vary
depending on the temperature of the supporting liquid) and the letter “h” is displayed as
the leading sign on the digital display. The follow-up system is switched off -- no course
can be output.
When the temperature of the supporting liquid reaches 45
°
C the follow-up system
switches on automatically, and the course is displayed on the compass;
however
deviation from actual course may still be considerable.
This settling in phase (indicated by an additional dot on the digital display) ends 4 hours
after switching on. Accuracy is now < 2
°
After about five hours (from switching on) the compass shows an accurate heading (see
Technical Data, section 1.3.3).
The “Quick Settling” option reduces the settling in phase to one hour. With it, precision
(after one hour) is better than +/--3
°
.