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l Check 1) Coincide the center mark and the point. (See Chapter 2 “PREPARATION FOR MEASUREMENT”.) 2) Rotate the instrument 180° or 200g around the vertical axis and check the center mark. If the point is properly centered in the center mark, adjustment is not required. Otherwise, adjust in the following manner. l Adjustment 1) Take off the adjustment section cover of the optical plummet telescope eyepiece. This will expose four capstan adjustment screws which should be adjusted with the accessory adjusting pin to shift the center mark to the point. However, correct only one-half of the displacement in this manner. Capstan adjustment screws Eyepiece 1/2 of displacement Capstan adjustment screws Plummet telescope 2) Use the leveling screws and coincide the point and center mark. 3) Rotate the instrument 180° or 200g around the vertical axis once more and check the center mark. If it is coincided to the point, then further adjustment is not required. Otherwise, repeat the adjustment. Note: First, loosen the capstan adjustment screw on the side to which the center mark must be moved. Then tighten the adjustment screw on the opposite side by an equal amount which will leave the tension of the adjustment screws unchanged. Revolve in the counterclockwise direction to loosen and in the clockwise direction to tighten, but revolve as little as possible. 9-8 9 CHECK AND ADJUSTMENT 9.4 Adjustment of Compensation Systematic Error of Instrument 1) Error of vertical axis (X,Y tilt sensor offset) 2) Collimation error 3) Error of vertical angle 0 datum 4) Error of horizontal axis The above mentioned errors will be compensated by software, which calculated internally according to each compensation value. Also these errors can be compensated by software collimating one side of the telescope that is carried out to delete the error by turning in normal and reverse both sides of telescope so far. Operating procedure Operation Display 1 2 3 Level the instrument properly with the plate level. Press [F5] key from the main menu. Press [F1] key . [F5] [F1] Adjustment F1 V0/Axis (Measurement) F2 V0/Axis (Constant list) F3 Date Time F4 Instrument constant v [V0/Axis Adjustments] ERROR CORRECTION (A) Tilt,V0 init,Collimation (B) H Axis (A)COLLIMATION4 5 6 Collimate target A (around 0° in horizontal within ±3°) in normal telescope setting (FACE(1)). Press [F6](SET)key. *1) The sample display shows that the measurement is made 5 times in FACE 1. Turn the telescope in reverse telescope setting (FACE(2)). Collimate A (Normal) [F6] Turn telescope FACE 1 V: 88°40'20" SKIP SET LEVEL±0 /0 FACE 1 V: 89°55'50" SKIP SET LEVEL±0 /5 FACE 2 V:270°04'20" SKIP SET LEVEL±0 0/5 9-9 9 CHECK AND ADJUSTMENT 7 Collimate target A. 8 Press [F6](SET)key. Repeat the procedures in step 7 and 8 so that the count of measured times matches to the one in FACE(1). * 2),3),4) The title display will be shown automatically. Collimate A (Reverse) [F6] FACE 2 V:270°04'20" SKIP SET LEVEL±0 5/5 (B)HORIZONTAL Axis FACE 2 V:270°04'20" SKIP SET LEVEL±10° /0 9 Collimate target B (more than ±10° from the level ) in reverse telescope setting (FACE(2)). *5) 10 Press [F6](SET)key. *1) 11 Turn the telescope in normal telescope setting(FACE(1)). 12 Collimate target B. 13 Press [F6](SET) key. Repeat the procedures in step 12 and 13 so that the count of measured times matches to the one in FACE(2). Then the display returns to main menu. Collimate B (Reverse) [F6] Turn telescope Collimate B (Normal) [F6] FACE 2 V:270°04'20" SKIP SET LEVEL±10° /5 FACE 1 V: 69°58'30" SKIP SET LEVEL±10° 5/5 Complete *1) It is able to get the average value from 1 to 10 measurements. To get the average, repeat the procedures in steps 4, 5 or 9, 10. The measured times is counted in the second line of display. *2) The compensation values of 1) Error of vertical axis (X,Y tilt sensor offset), 2) Collimation error, and 3) Error of vertical angle 0 datum will be set and memorized internally. *3) The operating procedure steps to set compensation value of 4) Error of horizontal axis. *4) Pressing [F1](SKIP) key enables to set next step without changing the last compensated value. *5) Pressing [F1](SKIP) key makes end of setting without changing compensation value. 9-10 9 CHECK AND ADJUSTMENT 9.5 Showing Constant List and Switch ON/OFF Compensation Systematic Error of Instrument [Example setting: Switch OFF the compensation] Operating procedure Operation Display 1 Press [F5] key from the main menu. 2 Press [F2] key . Correction values are displayed. 3 Press [F6](OFF) key. 4 Press [F1](EXIT) key. The display returns to main menu. [F5] Adjustment F1 V0/Axis (Measurement) F2 V0/Axis (Constant list) F3 Date Time F4 Instrument constant v [F2] Vco: -1°57'12" Hco: -0°00'20" HAx: -0°00'20" EXIT ON OFF [F6] Vco: -1°57'12" Hco: HAx: EXIT ON OFF [F1] 9-11 9 CHECK AND ADJUSTMENT 9.6 How to adjust the date and time Operating procedure 1 Press [F5] key from the main menu. 2 Press [F3] key. Current date will be on the display. 3 Pr...

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