| AE-7 |
AE-7C |
AS-2 |
AS-2C |
|
TELESCOPE |
|
|
|
|
|
Tube length: |
8.7 in (220 mm) |
8.7 in (220 mm) |
10.2 in (259 mm) |
10.2 in (259 mm) |
|
Image: |
erect |
erect |
erect |
erect |
|
Effective diameter of objective: |
1.57 in (40 mm) |
1.57 in (40 mm) |
1.77 in (45 mm) |
1.77 in (45 mm) |
|
Magnification: |
30x |
30x |
34x |
34x |
|
Resolution power: |
3" |
3" |
2.5" |
2.5" |
|
Field of view: |
1°30' (2.6 ft @ 100 ft) |
1°30' (2.6 ft @ 100 ft) |
1°20' (2.3 ft @ 100 ft) |
1°20' (2.3 ft @ 100 ft) |
|
Minimum focusing distance: |
0.98 ft (0.3 m) |
0.98 ft (0.3 m) |
3.28 ft (1.0 m) |
3.28 ft (1.0 m) |
|
Stadia ratio: |
1:100 |
1:100 |
1:100 |
1:100 |
|
Stadia additive constant: |
0 |
0 |
0 |
0 |
|
LEVEL VIAL SENSITIVITY |
|
|
|
|
|
Circular level: |
10' / 2 mm |
10' / 2 mm |
10' / 2 mm |
10' / 2 mm |
|
STANDARD DEVIATION |
|
|
|
|
|
per 1-km double-run leveling: |
±1.0 mm |
±1.0 mm |
±0.8 mm |
±0.8 mm |
|
With micrometer: |
±0.45 mm |
±0.45 mm |
±0.4 mm |
±0.4 mm |
| |
AE-7 |
AE-7C |
AS-2 |
AS-2C |
|
AUTOMATIC COMPENSATOR |
|
|
|
|
|
Type: |
wire-hung, air damper |
wire-hung, air damper |
wire-hung, air damper |
wire-hung, air damper |
|
Compensation range: |
±16' |
±16' |
±12' |
±12' |
|
Setting accuracy: |
±0.35" |
±0.35" |
±0.3" |
±0.3" |
|
HORIZONTAL CIRCLE |
— |
|
— |
|
|
Diameter of circle: |
— |
4.6 in (118 mm) |
— |
3.2 in (80 mm) |
|
Minimum increment: |
— |
1° / 1 g |
— |
1° / 1 g |
|
Scale reading (direct): |
— |
1° / 1 g |
— |
10' / 10 cg |
|
Reading by estimation: |
— |
0.1° / 0.1 g |
— |
1' / 1 cg |
|
DIMENSIONS |
|
|
|
|
|
Instrument (L X W X H): |
8.7 x 5.4 x 5.6 in (220 x 136 x 142
mm) |
8.7 x 5.4 x 5.6 in (220 x 136 x 142
mm) |
10.2 x 5.4 x 5.6 in (259 x 136 x 142
mm) |
10.2 x 5.4 x 5.6 in (259 x 136 x 142
mm) |
|
Carrying case (L X W X H): |
14.9 x 7.7 x 7.8 in (379 x 195 x 197
mm) |
14.9 x 7.7 x 7.8 in (379 x 195 x 197
mm) |
14.9 x 7.7 x 7.8 in (379 x 195 x 197
mm) |
14.9 x 7.7 x 7.8 in (379 x 195 x 197
mm) |
| |
AE-7 |
AE-7C |
AS-2 |
AS-2C |
|
WEIGHT |
|
|
|
|
|
Instrument: |
3.7 lbs (1.7 kg) |
3.7 lbs (1.7 kg) |
4.0 lbs (1.8 kg) |
4.2 lbs (1.9 kg) |
|
Carrying case: |
4.0 lbs (1.8 kg) |
4.2 lbs (1.9 kg) |
4.0 lbs (1.8 kg) |
4.2 lbs (1.9 kg) |
