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158
TPS-System 1000-2.3.1en
© Leica
Disturbance
Disturbance in ATR1 mode or at start of LOCK
mode
(The ATR1 is unable to recognize the prism)
This may be due to various causes and may provoke
various error reports:
• "No prism found or bad conditions. Aim
accurately at the prism and retry."
Causes:
-
No prism in field of view of telescope
-
Strong heat shimmer
-
Measurement distance too great
-
Environment too bright (sunshine on bright
surfaces, e.g. snow)
-
Bright reflections of sun in field of view, close
to prism.
In the two last instances, the report "Interfering
reflection" may also appear.
Counter-measures:
-
Reduce measurement distance
-
Cover reflections
-
Measure without Automatic Target Recognition
ATR1
• "Multiple prism found ! Aim more accurately at
the prism."
Causes:
-
Several prisms in field of view
-
Raindrops on prism or on object lens of
telescope
Counter-measures:
-
Ensure that only one prism is in field of view
-
Remove raindrops