Nexus 21 TH52 User Manual

Page of 36
 
English 
Sea Data Set TH52 
 
 
26 
 
9  Calibration setting up the Sea Data instrument 
To get the most out of your Nexus instrument, it is important to 
carefully calibrate the instrument. The calibration values are 
stored in a memory and will keep the values even if the instrument 
is un powered for more than 1o years. 
 
To access calibration mode, press and hold SET  more than 2 
seconds. 
To select a calibration code, press MINUSPLUS as required. 
To return to normal mode, press PAGE followed by SET when the 
text return (RET) is displayed.  
 
To change a calibration value, press SET
To select calibration value, press MINUS,  PLUS  and  PAGE  as 
required. 
To lock the selected value, press SET 
 
9.1 
Calibration of speed C10 
9.1.1 
Return C10 (RET) 
To return to normal mode, press SET
 
 
9.1.2 
Unit for Speed, C11 (Unit KTS) 
Unit for speed. Knots (KTS), km/h (K/h) or miles/h (m/h). 
 
Note, this is a local setting and has to be done on both Sea Data 
and the Wind instrument 
 
 
9.1.3 
Calibration of Speed, C12 (1.25 CAL) 
This is a system setting and you only need to enter the value on 
one of the instruments. 
Calibration value for speed and distance (0.00 - 1.99). 
Drive the boat a measured distance at normal speed.  
Compare the distance with the trip counter.  
Calculate the value with the following formula: 
 
 
True distance from the sea chart : 
Log trip counter distance: 
The current calibration value: 
New calibration value.