18
OERATING PROCESS
DISPLAY
? Turn the tangent knob and place
the required horizontal angle.
? Press HOLD key once , hold and
flicker the value of the horizontal
angle.
? Aim at the target.
? Press HOLD key, no blink and hold
to the value of the horizontal angle
? HOLD key is of no effect to the vertical angle.
? Measurement of zenith distance ? vertical angle and height angle
The vertical angle should be originally set according to the needs
before the operation.
6. 1 ZENITH DISTANCE
If choose 0 ° for the vertical angle as the zenith direction, the
measured vertical angle V is the zenith angle.
ZENITH DISTANCE V=(L+360°-R)/2
SPECIFICATON ERROR i=(L+R-360°)/2
6. 2 VERTICAL ANGLE
If choose 0°for the vertical angle in left direction , the measured
vertical angle V is the vertical angle.
VERTICAL ANGLE V=(L+180°-R)/2
SPECIFICATION ERROR i=(L+R-540°)/2
