60
If errors still persist after attempting to clear them, contact Topcon or your dealer.
RC BATT
LOW
The battery of the RC-300W is dead.
Replace the batteries with new ones after turning off
the RC-300W.
E-51
E-52
Abnormality in internal memory of the RC-
300W.
RC-300 can be used, but auto-cut off will not
function.
E-60’s
Abnormality has occurred with encoder
system.
Turn the power key OFF and ON again.
E-70’s
Abnormality has occurred with internal
communication.
Turn the power key OFF and ON again.
E-80’s
Leveling has not been completed. Turn the power key OFF and ON again.
TURN OFF/
TURN ON
Occurs when transmitting between the RT-
5SW and RC-300W in the checking and
adjusting mode.
Turn the power key OFF and ON again, repeat from
the beginning.
ONLY RT
CONNECTION
Abnormality in the wireless module of the
RC-300W.
Operate the RC-300W attached to the RT-5SW.
Error code Description Countermeasure
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