This instrument is mainly suitable for high precision survey of engineering including construction project, mines, road, bridge, etc. It possesses convenient operation, clear image, water proof facility, type V Magnetic damping and compensation mechanism, and precision of compensator. It is speedy and reliable as well.
SPECIFICATION:
Model |
AL8-22 |
AL8-26 |
AL8-28 |
AL8-32 |
Telescope |
Erect |
Erect |
Erect |
Erect |
magnification |
22X |
26X |
28X |
32X |
Compensator form |
Model V |
Model V |
Model V |
Model V |
Damp form |
Magnetism damp |
Magnetism damp |
Magnetism damp |
Magnetism damp |
Objective Aperture |
36mm |
36mm |
36mm |
36mm |
Field of View |
1°20' |
1°20' |
1°20' |
1°20' |
Minimum focusing distance |
1m |
1m |
1m |
1m |
Stadia Ratio |
100 |
100 |
100 |
100 |
Stadia Plus Constant |
0 |
0 |
0 |
0 |
Accuracy |
±0.3"/min |
±0.3"/min |
±0.3"/min |
±0.3"/min |
Level Sensitivity |
±0.5" |
±0.5" |
±0.5" |
±0.5" |
Compensating Range |
±15' |
±15' |
±15' |
±15' |
Circular Level Sensitivity |
8'/2mm |
8'/2mm |
8'/2mm |
8'/2mm |
Horizontal circle graduating |
1° |
1° |
1° |
1° |
standard deviation/ kilomere |
2.5mm |
2.5mm |
2.5mm |
2.5mm |