Determine datum point at end of run with the receiver.
Instrument is now set to give a straight laser beam over the
full length of the run.
Outdoor vertical function
6. Batteries
The instrument is powered by 4 DC4.8-6V Nimh
rechargeable batteries that allow for approximately 20
hours continuous use in standard conditions (20º-25º)
Alternatively you can use the alkaline battery pack supplied.
6.1 Battery Situation
The battery case is located on the base of the instrument. If
changing batteries; undo the cover by unscrewing centre nut,
replace batteries checking polarity.
