Unit name: nanjing hongtu instrument limited
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Product description
Dl-500 uses rab's random two-way coding technology and optimized digital processing algorithms, even in a volatile environment, where stable and reliable observations and observations can be obtained quickly; even when the surface of the ruler is partially shaded or the brightness is less than 20lux, the dl-500 can display reliable observations immediately, provided that the measurement key is pressed lightly; and the calibration procedure on board, which meets the standard measurement specifications, allows for the completion of measurements and calculations at various scales. The observation data in memory can be processed directly to the computer, eliminating artificial errors in the data recording process。
Technical parameters for products:
Topcon topcon's newly introduced electronic standard dl-502/503, swing measurement techniques。
One-key operation, measurement storage instantaneously completed
Measurement accuracy: 0. 4 mm
2. 5-second measurements, 2000 observation data
Preload measurement procedures that meet the measurement specifications
Swing measurements, with small swings around bar-coded feet still measurable
Rab random two-way encoding
Easy, fast, stable and reliable, which can be widely applied to all levels of measurement。
Model: dl-502
Magnification factor: 32x
Valid aperture: 45 mm
Resolution: 3
Visual corner: 1°20"
Short-sighted distance: 1. 5 m
Image: positive
Distance multiplied by constant: 100
Compensator type: magnetic blocker
Scope of compensation: ±15'
High range measurements (standard difference per kilometre round-trip altimeter): 0. 4 mm
Electronic measurements: 0. 4 mm
Bis20/30 铟 steel feet: 0. 4 mm
Bgs 40/50 glass steel feet: 1. 0 mm
Optical measurements (glass steel feet): 1. 0 mm
Electronic measurements: 1. 6 ~ 1 m
Measurement time: single, repeat or average mode < 2. 5 seconds, continuous mode < 1 second
Small readings: 0. 0001/0. 001 m
Low light condition: 20lux surface brightness of ruler
D≤10m: ±10mm
10 m <d≤50 m: ± 0. 1% x d
D>50m: ±0. 2% x d
Read: 0. 01/0. 1 m
Monitor: 128 x 32 point liquid crystal display with back light device
Keyboard: 8 keys (7 front, 1 side)
Circler sensitivity: 10'/2mm
Measurement mode: single/duplicate/average/continuing/high differential/high/high range/high distance sample
Observation data: 2000 group
Operations: 20 more
Data output format: csv
Interface: rs-232c
Water protection level: ipx4 (iec 60529:2001)
Working temperature: 20°c ~ 50°c
Storage temperature: -40°c ~70°c
Batteries: bdc71 (charging lithium batteries, 7. 2v)
Working hours: >20 hours
Weight (with batteries): 2. 4kg
Dimensions: 257 x 158 x 182 mm