Technical Data of 'DS' Auto Levels
|
|
DS20 |
DS24 |
DS28 |
DS32 |
|
Standard Deviation for 1 km Double-run Lwevelling |
2.5mm |
2.0mm |
1.5mm |
1.0mm |
|
Image |
Erect |
Erect |
Erect |
Erect |
|
Magnification |
20x |
24x |
28x |
32x |
|
Objective Aperture |
34mm |
34mm |
39mm |
39mm |
|
Field of View |
1020' |
1020' |
1020' |
1020' |
|
Minimum Focus |
0.5m |
0.5m |
0.7m |
0.7m |
|
Multiplication Constant |
100 |
100 |
100 |
100 |
|
Additive Constant |
0 |
0 |
0 |
0 |
|
Compensating Range |
+/- 15' |
+/- 15' |
+/- 15' |
+/- 15' |
|
Setting Accuracy |
+/- 0.8" |
+/- 0.8" |
+/- 0.8" |
+/- 0.8" |
|
Sensitivity of Bubble |
8'/2mm |
8'/2mm |
8'/2mm |
8'/2mm |
|
Circle Reading |
10 or 1gon |
10 or 1gon |
10 or 1gon |
10 or 1gon |
|
Special Features: (1) Chinese patent, excellent shockproof function. (2) Excellent sealed structure for using in any weather (3) Friction-braked rotating and endless horizontal drive (4) Prism for viewing circular level.
(5) 22X, 26X, 30X auto levels are also available.
NOTES:
1.) Other kinds of auto levels are also available |