Operation Manual

MAINTENANCE
Care must be taken to maintain the accuracy of the instrument.
• After each use, the instrument should be wiped clean and kept in its
carrying case.
• Remove dust from the lenses with a soft brush or a nonabrasive wipe.
Never touch the lenses with your fingers.
• Store the instrument in a dust-free area with low humidity.
• A bag of silica gel dryer is included with each instrument; if it has
stopped working effectively, bake it to remove moisture or replace with
a new bag.
TECHNICAL DATA
AL24 • 7
Telescope Erect
Telescope length 0.8”(202mm)
Magnification 24 x
Leveling accuracy 1,6 mm at 45 m
Working range 300’(90 m)
Clear objective aperture 36mm
Field of view 1°20’
Shortest focusing distance 1’ (0.3m)
Stadia ratio 100
Stadia addition 0
Water resistant? Yes
Compensator:
Working range +/- 15’
Setting accur. +/- 0.8”
Magnet dampening Yes
Sensitivity of bubble 8’/2mm
Circle graduation 1° or 1 gon
Standard deviation for 1km 2.0mm double-run leveling
Instrument net weight 1.8kg (4 lbs)
Mounting thread 5/8“ x 11 (M16)