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Upgrade to the latest features and technology with DS-A Series Automatic Levels!
This instruments is mainly suitable for high precision of engineering including consruction project,mine,road,bridge,etc. Standard deviation for 1km double -run leveling is <1.0mm.
This instrument is using gravity pendulum magnetic damping compensator,having super stable damping effect and high precision of setting accuracy,suitable for high precision of different bad surveying conditions.and using super large roof prism,which bringing super clear imaging ,making minimum focusing distance<0.3m.
this protected package depends on human-centerde design,suitable for different transportation conditions with long distance.
| A20 | A22 | A24 | A26 | A28 | A30 | A32 | |
| Image | Erect | Erect | Erect | Erect | Erect | Erect | Erect |
| Magnification | 20X | 22X | 24X | 26X | 28X | 30X | 32X |
| Objective Aperture | 36mm | 36mm | 36mm | 40mm | 40mm | 40mm | 40mm |
| Field of view | 1°20' | 1°20' | 1°20' | 1°20' | 1°20' | 1°20' | 1°20' |
| Minimum focus | 0.3m | 0.3m | 0.3m | 0.3m | 0.3m | 0.3m | 0.3m |
| Multiplication constant | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Additive constant | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Compensator range | ±15' | ±15' | ±15' | ±15' | ±15' | ±15' | ±15' |
| Compensator setting accuracy | ±0.8" | ±0.8" | ±0.8" | ±0.5" | ±0.5" | ±0.5" | ±0.3" |
| Sensitivity of bubble | 8'/2mm | 8'/2mm | 8'/2mm | 8'/2mm | 8'/2mm | 8'/2mm | 8'/2mm |
| Horiz.circle-reading | 1°or 1gon | 1°or 1gon | 1°or 1gon | 1°or 1gon | 1°or 1gon | 1°or 1gon | 1°or 1gon |
| Standard deviation for 1km double run leveling | 2.5mm | 2.0mm | 2.0mm | 1.5mm | 1.5mm | 1.5mm | 1.0mm |
(DS-A32)(1.0mm accuracy)(32X Magnification) automatic level