Description

The DE Series model numbers that reflect angle accuracy and have common features. All models have dual displays, and a detachable tribrach. The DE2A has 2", the DE5A has 5", and the DE*0A has *0"angle accuracy. Horizontal and vertical angles can be observed simultaneously on the large 2 line, back-lit LCD displays. Other standard features include a horizontal angle zero set, automatic power off to conserve batteries, and a battery life indicator on the LCD display. FEATURE: ***** code system is adopted and two sides of LCD display plates can save power and display clearly. 2.High integrated electronic boards and all famous IC elements are high quality. 3.Steel axes imported lubricating oil and metal shell are adopt SPECIFICATION: Model DE2A/B DE5A/B DE*0A/B Telescope Length **5mm **5mm **5mm Objective lens aperture φ*5mm φ*5mm φ*5mm Magnification *0X *0X *0X Image Erect Erect Erect Field of view 1°*0ï&frac*4;‡ 1°*0ï&frac*4;‡ 1°*0ï&frac*4;‡ Resolving power 3.3〞 3.3〞 3.3〞 Shortest sighting dictance 1m 1m 1m Additive constant 0 0 0 Stadia proportion constant **0 **0 **0 Angle measurement Minimum reading 1〞/5〞 1〞/5〞/*0〞 1〞/5〞/*0〞/*0〞 accuracy 2〞 5〞 *0〞 Display Display mode Double sides display Double sides display One side illuminiation Provide Provide Provide Compensator Tilt sencor A Provide / B unprovide A Provide / B unprovide A Provide / B unprovide Compensating range ±3ï&frac*4;‡ ±3ï&frac*4;‡ ±3ï&frac*4;‡ Optical plummet Magnification 3X 3X 3X Field of view 5° 5° 5° Focusing range 0.5mï&frac*2;žâˆž 0.5mï&frac*2;žâˆž 0.5mï&frac*2;žâˆž Level sensitivity Plate level *0〞/2mm *0〞/2mm *0〞/2mm Circle level 8ï&frac*4;‡/2mm 8ï&frac*4;‡/2mm 8ï&frac*4;‡/2mm Data output Output interface RS**2C RS**2C RS**2C Power supply Rechargeable battery ***0mAh Ni-MH ***0mAh Ni-MH ***0mAh Ni-MH Battery working time ****0h ****0h ****0h Others Waterproof class IP*5 IP*5 IP*5 Tribrach type Detachable Detachable Detachable