Raytheon Anschütz Pilotstar D, Manual

Page: 129 / 166

PILOTSTAR D
Autopilot
4--25
Edition: March 13, 2009
3060.DOC012
4.10 Adjusting the Magnet Sonde 108--010
Test Equipment:
A normal voltmeter must be available as test equipment (DC range)
Requirement:
The magnetic probe of type 108--010 has already been assembled in accor--
dance with the assembly instructions.
Check the valency (
1 ) of the ship specific parameter MAG TYPE
(refer to Chap. 4.5.1 and appendix -- 4).
Select the MAG COMPASS type on the control panel.
The parameter value for VARIATION must be
0

.
Check whether the signal inputs of the fluxgate terminal (B26 on the terminal
PCB) are bridged.
Adjusting procedure:
If the I/O PCB has no R140 (SCALE REF. MAGN) potentiometer
Connect the voltmeter to the following test points (TP):
TP1

TP12 + (COS)
1) Turn the probe in its holder until the actual heading display in the LCD display
panel shows 0

. The voltmeter must now display a voltage between -- 4.9 and
-- 5.9 V. If the voltage is < -- 4.9V, then the distance between the magnetic com--
pass and the probe must be decreased (shorten the spacing pieces). If the va--
lue is > -- 5.9V, then a set of extended spacing pieces must be used.
2) Turn the probe slowly in its holding ring until the actual heading display
(PILOTSTAR D) is identical to that of the magnetic compass heading.
(In this setting, check the sense of rotation of the phases):
-- if the probe is turned in the direction of higher magnetic compass
values, then the actual heading display must be correspondingly larger.
If the sense of rotation is incorrect, then probe connections S1 and S3
must be swapped.)
The probe is screwed in at this location.