GPT-3000 SERIES - FLT Geosystems

17.2 Checking the Optical Axis17 CHECK AND ADJUSTMENT17.2.1Checking the optical axis of EDM and theodoliteCheck each of the optical axis of EDM and theodolite about prism mode and non-prism mode in order.To check if the optical axis of EDM and theodolite are matched, follow the procedure below.It is especially important to check after adjustment of the eyepiece reticle is carried out.1) Position a prism about 30 to 50m apart from GPT-3000 series .2) Turn the power ON while pressing the [F1] key.Adjustment mode menu 1/2 will appear.ADJUSTMENT MODE 1/2F1:V ANGLE 0 POINTF2:INST. CONSTANTF3:V0 AXIS P↓3) Press the [F4](P↓) key to get the menu 2/2..Press the [F1] key to select the EDM CHECKmode.ADJUSTMENT MODE 2/2F1:EDM CHECK4) Collimate the center of a prism by prism mode.The buzzer will sound.5) Press the [F4](hold) key to hold the quantity of thelight.The mark "#" will appear on the right side of thesignal level indicator.P↓V: 90° 10'10"HR: 20° 00'20"SIGNAL:[❙ ❙ ❙ ❙ ❙]EXIT NP/P HOLDV: 90° 10'10"HR: 00° 04'20"SIGNAL:[❙ ❙ ❙ ❙ ❙] #EXIT NP/P HOLD●H direction confirmation (Do not move V direction).6) Turn the horizon tangent screw, move the collimating point to the left side of prism gradually untilbuzzer sound stops.PrismReticle17-2