Offset Two-Distance Measurement - Sokkia DX Series Operator's Manual

17.3

Offset Two-distance Measurement

By measuring the distances between the target point and the two offset points.
Install two offset points (1st target and 2nd target) on a straight line from the target point, observe the
1st target and 2nd target, then enter the distance between the 2nd target and the target point to find
the target point.
• It is possible to make this measurement easily using the optional equipment: the 2-point target
(2RT500-K). When using this 2-point target, be sure to set prism constant correction value to 0.
"24. TARGET SYSTEM"
How to use 2-point target (2RT500-K)
• Install the 2-point target with its tip at the target point.
• Face the targets toward the instrument.
• Measure the distance from the target point to the 2nd target.
• Set the prism constant correction value to 0mm.
• The target should be sighted manually when performing two-distance offset measurement.
Multiple prisms in the field will mean that Auto Pointing may not operate correctly, or the
instrument may not be able to judge which is the desired target.
"11.1 Auto Tracking Settings"
108
17. OFFSET MEASUREMENT