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Specifications

DL-500 Specifications
Telescope
Magnification
DL-502 32X, DL-503 28X
Objective aperture
DL-502 45mm, DL-503 36mm
Field of View
1 degree 20 minutes
Minimum Focus
5.0 ft (1.5m)
Stadia ratio
100
Compensator
Type
Pendulum compensator with magnetic damping system
Working Range
+/- 15'
Height Measurement
Accuracy
standard deviation for 1km double run leveling
Electronic Reading
Invar staff
DL-502 0.6mm DL-503 0.8mm
Fiberglass staff
DL-502 1.0mm DL-503 1.5mm
Measuring Range
5.3 to 328 ft (1.6m to 100m)
Measuring Time
Fine
3 sec
Tracking
1sec
Minimum Brightness
20lx. at the staff surface
User Interface
Display
128×32 dot matrix LCD with backlight
Keyboard
8 keys (7 on front panel, 1 on side panel)
Circular Level Sensitivity
10’/2mm
Data Storage
2,000 points
Environmental
Waterproof
IPX4
Operating Temperature
-4°F to 122°F (-20°C to 50°C)
Operating Time
Approx. 16 hours