TECHTRAIL Enduro TrailHead, User Manual

23

english

24

english

CALIBRATING THE COMPASS 

(

CONTINUED

)

In Compass mode:

1. 

PRESS & HOLD

 the 

SET/CLEAR

 key to enter the 

calibration sequence.

2. ROTATE

CAL

 will appear in the center of the display. 32-

segment ring around the outside will animate clockwise to 
prompt the user to rotate the instrument during calibration.

3. 

Rotate the instrument clockwise for two complete rotations 
of approximately 15-seconds per rotation. 

NOTE:

 For the optimum accuracy, the compass must be 

held completely level during the calibration process. We 
recommend placing the unit on top of a drinking glass 
while performing the calibration as this will make it 
easier to keep the compass level. 

4. 

Advance to set 

DECLINATION

 by 

PRESSING 

the 

MODE 

key.

NOTE:

 If you do not know the Magnetic Declination for 

your area, leave this setting at zero.

5. 

Set 

DECLINATION

 by 

PRESSING

 the 

START/LAP

 key for 

EASTERN (+)

 or 

STOP/NEXT

 key for 

WESTERN (-)

.

6. 

PRESS SET/CLEAR

 to exit the setting sequence.

MAGNETIC DECLINATION

A magnetic compass points to the earth’s magnetic north pole. Depending on your 
location, this may be different from True North.  Adjusting the Magnetic Declination 
allows you to compensate for this variation.  Magnetic Declination for an area can be 
found on topographical maps. Declination can change over time and distance. Make 
sure the source for your declination settings is up to date. The following websites are 
good sources for finding local Magnetic Declination.

FOR U.S. DECLINATIONS:

http://www.ngdc.noaa.gov/seg/geomag/jsp/Declination.jsp

FOR CANADIAN DECLINATIONS:

http://gsc.nrcan.gc.ca/geomag/field/mdcalc_e.php

SETTING THE INSTRUMENT FUNCTIONS

SETTING THE INSTRUMENT FUNCTIONS