model:
BB17-TDJ6E
Product name: 6-second positive image theodolite Technical parameters: One-time measurement standard deviation in the horizontal direction (second) ≤ ± 6 "
Standard deviation (seconds) in one vertical direction of one measurement back ≤ ± 10 "
Dial division 360 ° / 400g
Minimum grid value 1 "/ 1cc
Compensation range ± 2 ′
Placement error ± 1 "
Telescope imaging magnification 30 ×
Objective aperture (mm) 40
Angle of view 1 ° 30 ′
Shortest viewing distance (m) 2
Line of sight multiplied by a constant of 100
Line of sight plus constant 0
Barrel length (mm) 172
Spirit level long level (seconds / mm) 30/2
Circular level (min / mm) 8/2
Magnification of optical point aligner 3 ×
Field angle (degrees) 5
Focusing range (m) 0.5 ～ ∞
Instrument Net Weight (Kg) 4.3
Instrument volume (mm3) 136 × 130 × 286
Instrument base Zeiss central thread metric
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Shandong Tianzige International Trade Co., Ltd , https://www.chinesedipers.com