Johnson Theodolites 40-6936 Manual De Instrucciones página 20

8863H-All_Manuals 3/19/15 3:25 PM Page 20
Other Functions
Measuring Distance Using the Stadia Method
Read the leveling rod using the stadia hair on the reticule of the
telescope. Multiply the reading by 100 to obtain the actual distance
L from the target to the measured point. (100 is the multiplication
constant error of the instrument, i.e. 1 = 1 x 100)
Stadia Hair
Tilt Sensor
This theodolite is equipped with a tilt sensor. The inclined angle of the
instrument will be compensated automatically by the tilt sensor. If the
instrument is inclined too much, a symbol "b" will be shown on the
display , this means the instrument exceeds the compensated range.
Level the instrument by hand.
To turn on the tilt sensor and hold the R/L button in for 3 seconds
after moving the telescope to get into vertical measuring mode. The
word "Tilt" will appear on the display. If the instrument is inclined
within +3º the tilt sensor can compensate the vertical angle. If the
inclination is greater than + 3º the instrument will display "b".
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