Laser rangefinder operation mode for one flight, series: Each serie consists of 16 cycles of 10 seconds with 5 sec interval between the cycles.
5
Interval between the series, min: 30
pg 454 of the manual
Everyone I train, I tell to hit the fire extinguisher and repair after each flight. It is rare but if you are using your laser range finding a lot during a flight you could loose it on your 2nd flight so best just get in the habit of repairing. Nothing worse than RTB cause laser burned out.