Standrd Deviation per 1km Double-Run Leveling | Optical Reading | ±1.5mm | ||
Electronic Reading | ±1.5mm | |||
Electronic Reading System | Measuring Range | 2.5m~100m | ||
Single Measuring Time | Approx.3second | |||
Min. Altitude Reading | 0.2mm | |||
Min. Distance Reading | 0.01m | |||
Magnification | 28× | |||
Objective Aperture | 40mm | |||
Shortest Focusing Distance | 0.5m | |||
Resolution Power | 4" | |||
Setting Accuracy | ±0.5" | |||
Leveling Time | 2" | |||
Image of Telescope | Erect | |||
Compensation Type | Magnetic Damping | |||
Compensator Working Range | ±15' | |||
Field of View | 1°30' | |||
Multiplication Constant | 100 | |||
Additive Constant | 0 | |||
Sensitivity of Circular Level | 8'/2mm | |||
Display | LCD | |||
Data Port(interface) | -- | |||
Data Memory | -- | |||
Power Supply | Rechargeable Battery(Ni-H):6v/1.3AH When the power is used out,DAL1528 or DAL1528R would be ordinary Auto-Levels!! | |||
Operating Time | Approx.10hrs | |||
Auto Power-Off | 5 minutes later | |||
Horizontal Outer Circle | 360°/1° | |||
Ambient Temperature | -20°C~+50°C | |||
Standard Accessories | ||||
Recommended Tripod | Please refer to "Surveying Tripods" | |||
Recommended Staff | Please refer to "Staff&Rods":Al.Digital Staff(ADS) | |||
Packing Details | ||||
Note | Any updating would be subject to change without prior notice!! |