Sokkia SRX1 Operator's Manual page 66

12. MEASUREMENT WITH AUTO TRACKING

Lost Prism
In the event that an obstacle prevents the SRX sighting the target during Auto Tracking, the
instrument will predict the direction in which the target will travel and continue Auto Tracking
based on this prediction. If the SRX re-acquires the target in this predicted direction, Auto
Tracking continues without change. If the target is not re-acquired however, Auto Tracking will
stop and the SRX will enter "prism wait" status for a period of 60 seconds.If the target enters the
field of view or a Turning command is received from the RC Controller during "prism wait", the
SRX will perform Auto Pointing, then resume Auto Tracking. If the target is not re-acquired
during the "prism wait" period, the target is considered "lost" and sighting terminates.
Start Auto Tracking procedure again from step 1.
Auto Tracking
Obstacle
Direction predicted
Target
not found
"Prism wait"
Target
not found
Target "lost"

• The following softkeys can also be used for Auto Pointing when "A.T. Setting" in <Motor
configuration> is set to "Track".
Softkey
[DIST]
[SRCH]
[H.ANG]
[0 SET]
[RC]
[<-RC]
[RC->]
58
Target found
Target found
Function
Performs Auto Pointing then Auto Tracking/distance measurement
Performs Auto Pointing then Auto Tracking/distance measurement
Sets current angle to a specified angle then performs Auto Pointing/
Auto Tracking
Sets current angle to 0 then performs Auto Pointing/Auto Tracking
Rotates in the direction specified by the On-demand Remote Control
System then performs Auto Pointing/Auto Tracking
Rotates in a counterclockwise direction (from the point of view of the
RC Controller) then performs Auto Pointing/Auto Tracking
Rotates in a clockwise direction (from the point of view of the RC
Controller) then performs Auto Pointing/Auto Tracking