Topcon RL-VH3A - Laser Sensors; LS-70 A and LS-70 B Sensor Details; Auto-Cut Off Function

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Auto-cut off function (LS-70A and LS-70B)
The power will be turned off automatically if no laser beam is detected within approximately 30 minutes.
(To turn the sensor on again, press the power switch.)
Two leveling precision
options are available,
normal precision and
high precision. By
pressing this switch, the
precision options are
switched alternately.
Confirm the precision
choice by the indicator.
(Normal precision is set
when turning on the
power switch.)
Detective
precision switch
Indicator
Index
Index
Buzzer sound
switch
Beam receiving window
Power switch
Buzzer speaker
Illumination switch
(Quite/Loud/OFF)
Buzzer sound switch
(Quite/Loud/OFF)
Buzzer speaker
Index
Index
Beam receiving window
Indicator
Power switch
LS-70B Laser Sensor
LS-70A Laser Sensor