Leica Geosystems TPS1100 Professional Series - User Manual - Manual (Page 86)

86 System functions TPS1100 - User Manual 2.2.1en
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If the offset is more than 5mm when
the prism is exactly aligned and in
faultless condition, the Automatic Tar-
get Recognition ATR1 must be
recalibrated. If excessive offsets
occur frequently, contact your Leica
Geosystems agency.
Hz-offset
1000Z19
Centre
of the
prism
V-of
fset
Functionality, continued
Crosshair
The telescopic field of view is the
active field of the ATR. Within this
area the prism is identified
immediately.
The following functions are
valid only for TCA and TCRA
instruments.
This mode permits the automatic
recognition of stationary targets.
The observer must first use the
optical sight to target the prism
approximately so that it is located
within the telescopic field of view.
When the distance measurement is
triggered, the motors move the
crosshair close to the centre of the
prism to make distance
measurement possible.
ATR-Mode (ATR+ / ATR-) LOCK-Mode (LOCK+ / LOCK-)
Lock-mode will enable TCA
instruments to follow a moving prism.
Distances can be measured
whenever the prism stops for a short
time (Stop and Go mode).
The icon is shown in the lower
left area of the status field when the
LOCK-mode is activated and before
a prism is found.
Switching to LOCK mode requires an
initial distance measurement so that
ATR1 "learns" the prism.
This measurement is the same as
the initial measurement in ATR
mode.
If the prism is subsequently moved,
the telescope tracks it automatically
for as long as the prism is aligned to
the instrument.