World's First "Wave-and-Read" Technology
Topcon DL-500 series digital levels maximize work efficiency and minimize human error, providing consistent measurement precision and speed, regardless of operator skill.
Incorporating cutting-edge Random-Bidirectional (RAB) coding technology, an optimized digital processing algorithm, the DL-500 provides exceptional measurement accuracy,
stability and speed, under a variety of environmental conditions. Even when the staff surface is partially shaded, or in dim lighting conditions as low as 20 lux, a single button triggers measurement and the DL-500 instantly provides reliable results.
The world's first "Wave-and-Read" technology provides an additional survey style option that allows a rod operator to wave the staff forward and back, instead of keeping the staff plumb. This simpler method is faster, easier, minimizes the fatigue and is just as accurate.
Pre-installed measurement programs assist various leveling tasks and accompanied calculations. Internal memory stores field data, and can be directly transferred to your computer via serial cable, eliminating human error
Elevation
Calculates elevation of foresight (FS) with reference to backsight (BS) elevation. Elevation of the turning point (TP) is used for a new backsight, allowing for consecutive leveling.
Cut and Fill
Cut and fill stakeout routines facilitate slope work. Measurement can be taken with 0.1mm or 1mm (0.001ft. or 0.01ft.) resolutions.
Height Difference
Automatically displays the height difference between backsight (BS) and foresight (FS) in 0.1mm or 1mm (0.001ft. or 0.01ft.) unit.
Ceiling Height
Two measurements provide a ceiling height; one with a staff placed on the ground, the other with an inverted staff put onto the ceiling. Ceiling elevation can also be calculated with reference to the benchmark elevation.
Telescope
DL-502
DL-503
Magnification
32X
28X
Objective aperture
45mm (1.78in.)
36mm (1.42in.)
Resolving power
3”
3.5”
Field of view
1°20”
1°20”
Minimum focus
5.0ft. (1.5m)
5.0ft. (1.5m)
Image
Erect
Erect
Stadia ratio
100
100
Compensator
DL-502
DL-503
Type
Pendulum compensator with magnetic damping system
Working range
±15’
±15’
Height Measurement
DL-502
DL-503
Accuracy
(standard deviation for 1km double run leveling)
Electronic reading
Invar staff
0.6mm
0.8mm
Fiberglass staff
1.0mm
1.5mm
Optional reading
1.0mm
2.0mm
Measuring range
5.3 to 328ft. (1.6 to 100m)
Measuring time
Fine
3 sec. (single/continuous/average)
Tracking
1 sec.
1 sec.
Least count
0.0001/0.001m, 0.001/0.01ft., 1/8in.
Minimum brightness condition
20lx. at the staff surface
Distance Measurement (D=measuring distance)
DL-502
DL-503
Accuracy
D 10m
±0.4in. (±10mm)
±0.4in. (±10mm)
10m<D 50m
±0.1%×D
±0.1%×D
50m<D
±0.2%×D
±0.2%×D
Least count
0.01/0.1m, 0.1/1ft., 1in.
0.01/0.1m, 0.1/1ft., 1in.
User Interface
DL-502
DL-503
Display
128×32 dot matrix LCD with backlight
Keyboard
8 keys (7 on front panel, 1 on side panel)
Circular level sensitivity
10’/2mm
10’/2mm
Measurement Program
DL-502
DL-503
Single / Continuous / Average / Elevation / Height difference / Cut & Fill / Stakeout distance
Data Storage
DL-502
DL-503
Internal memory
2,000 points
2,000 points
Job
Max. 20 jobs
Max. 20 jobs
Data output format
CSV
CSV
Interface
RS-232C
RS-232C
Environmental
DL-502
DL-503
Water resistance
IPX4 (IEC 60529:2001)
Operating temperature
-4°F to 122°F (-20°C to 50°C)
Storage temperature
-40°F to 158°F (-40°C to 70°C)
Others
DL-502
DL-503
Power supply
BDC46B (Li-ion battery, 7.2V)
Operating time
Approx. 16 hours
Approx. 16 hours
Weight (including battery)
5.3lb. (2.4kg)
Size (D x W x H)
10.1×6.2×7.2in. (257×158×182mm)
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