Topcon GTS-821A, GTS-822A, GTS-823A, GTS-825A Standard Measurement Mode, Angle Measurement

4 STANDARD MEASUREMENT MODE

4 STANDARD MEASUREMENT MODE

2003-10-10 15:30:40

Prog Std Mem Comm Adj Para

[Press [F2] key.]

STANDARD MEASUREMENT MODE

Angle measurement, Distance measurement, Coordinate measurement .

4.1 Angle Measurement

4.1.1 Measuring Horizontal Angle Right and Vertical Angle

Make sure the mode is in Angle measurement.

Operating procedure	Operation				Display
1 Collimate the 1st target (A).
	Collimate	V :	87°55'45"
	A	HR: 180°44'12"
		SD	HD		NEZ	0SET	HOLD P1↓
2 Set horizontal angle of target A at 0° 00' 00".
	[F4]	H-0SET
Press [F4](0 set) key and [F6](SET) key.		HR:	00°00'00"
		ESC					SET
	[F6]	V : 87°55'45"
		HR:	00°00'00"
		SD	HD		NEZ	0SET	HOLD	P1↓
3 Collimate the 2nd target (B).
	Collimate	V :	87	°	55'45"
The required H/V angle to target B will be
	B	HR: 123°45'50"
displayed.
		SD	HD		NEZ	0SET	HOLD	P1↓

Reference : How to Collimate

1Point the telescope toward the light. Turn the diopter ring and adjust the diopter so that the cross hairs are clearly observed.

(Turn the diopter ring toward you first and then backward to focus.)

2Aim the target at the peak of the triangle mark of the sighting collimator. Allow a certain space between the sighting collimator and yourself for collimating.

3Focus the target with the focusing knob.

*If parallax is created between the cross hairs and the target when viewing vertically or horizontally while looking into the telescope, focusing is incorrect or diopter adjustment is poor.

This adversely affects precision in measurement or survey. Eliminate the parallax by carefully focusing and using diopter adjustment.

Focusing knob

Telescope eyepiece (Diopter ring)

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