Specifications - Topcon DL-501 Instruction Manual

25.SPECIFICATIONS

Except where stated, the following specifications apply to both DL-501 Advanced and DL-501
Standard.
Telescope
Length:
Aperture:
Magnification:
Image:
Resolving power:
Field of view:
Minimum focus:
Stadia ratio:
Stadia additive constant:
View Finder (DL-501 Advanced only)
Length:
Aperture:
Magnification:
Image:
Field of view:
Minimum focus:
Auto Focus (DL-501 Advanced only)
Method:
Range:
Minimum brightness level:
Auto Focus time:
Auto Focus motion:
Auto Focus/manual conversion: No (Manual mode given priority by friction clutch)
Automatic compensator
Automatic compensator:
Compensation range:
Setting accuracy:
Tilt warning
Mechanism:
Range:
Measurement
Horizontal circle:
*1
Measuring range :
Height
Distance
118
280mm
45mm (1.8 inch)
32X
Erect
3"
1°20' (2.3m/100m)
1.5m (5.0 ft)
1:100
0
130mm
22mm (about 0.9 inch)
4.5X
Erect
3°
7m
Combination of passive/electronic distance measurement and
contrast detection
1.6m to 100m
20lx at staff
0.8 to 4 sec. (outdoors, fine to cloudy conditions)
Yes/No (selectable)
Magnetic damping and pendulum mechanism
±12'
±0.3"
Liquid 2-axis tilt sensor
±8.5' (graphic level display and audio tone)
Diameter: 103mm
Graduation: 1°/1 gon
0.0375 to 1.9305m (0.124 to 6.333 ft) (with BIS20 staff)
0.0375 to 2.9725m (0.124 to 9.752 ft) (with BIS30/30A staff)
0 to 4m (13.123 ft) (with BGS40 staff)
0 to 5m (16.404 ft) (with BGS50 staff)
Electronic measurement: 1.6 to 100m
Visual measurement: from 1.5m