Quite often our users need to find the orientation between two 

objects. It may be the span length of utility poles, the slope of 

a newly constructed grade, or the direction a building is facing. 

Most of the time it is easier to make these measurements from a 

remote location, not right at one of the objects. Your Criterion 

300 or 400 has the facility to give you these useful answers right 

on board, in the field! 



What we are talking about here is "inversing" two sets of 

coordinates to get the azimuth, inclination and distance from one 

to the other. This is accomplished in the Target Coordinates 

routine under the Survey menu. The procedure is as follows:



1. Position the instrument where both objects can be seen.

2. Enter into the Target Coordinates program.

3. Scroll to the TARGET X: --------.--- FT. screen.

4. Shoot the target you want the orientation TO.



REMEMBER: If you exceed 15 degrees of inclination you will get the 

**COMPASS?** error message. Just point at the target with the 

peepsight and pull the trigger to complete your shot. No keypad 

strokes are necessary.



5. Scroll to TRANSFER TO DSTN  YES/NO and select **YES**.

6. Shoot the target you want the orientation FROM.

7. Scroll to TRANSFER TO STN?  YES/NO and select **YES**.

8. Hit the red TARGET key (number 1) to display the azimuth.

9. Scroll to values for the inclination and slope distance

   (horizontal distance must be calculated manually).

At present, this information is not available at the serial port 

but may be entered into your data collector for storage.



With these few simple steps, valuable (often-times critical) 

information can be gathered effortlessly right there in the field 

where you may need it. Just another one of the multiple uses of 

your handy Criterion! 100 and 200 owners? Upgrade your laser today 

and increase your capability and efficiency ten-fold!