• The [F3] [0 SET] key cannot reset the vertical angle to 0.
• Pressing the [F4] [DISP] key cycles through the sets of display items : “H.angle/H.dst./V.dst.”, “H.angle/V.angle/S.dst.”, and “H.angle/V.angle/H.dst./S.dst./V.dst.”.
• Even though you turn the power off during a survey, the horizontal angle displayed last time is saved, so that it is restored when the power is turned on next time.
• When the restored horizontal angle is not necessary, reset it to 0.