Topcon LS-B4 - Rotating Laser Height Alert Warning

2 PREPARING FOR USE
2-8
2.3.1 Rotating laser height alert warning*
If the display illuminates as shown above, the rotating laser has been disturbed and a
substantial change in its position could have occurred. This change has been detected
by the LS-B4. The laser position should be checked to prevent possible erroneous
measurements.
*The rotating laser height alert warning works only with specific Topcon rotating laser
models that are equipped with a sensor-detectable height alert function.
Display
LED: Blinks slowly
LED
Green
Yellow
Red
LS-B4E-1.book8 ページ ２００１年５月１８日 金曜日 午前１１時５９分