说明

• Product DescriptionSpecificationModelB40B30B20TelescopeLength215mm(8 inch)Objective aperture32mm36mm42mmMagnification24X28X32XImageErectResolving power4"3"3"Field of view(at 100m)1° 25′ (2)1° 20′ (2)Minimum focussing distance0 (7) from end of telescope0 (1ft) from instrument cener patternCross hairswedgeStadia ratio100Stadia constant0sighting aidGun sightPeep sightFocusing Knob1-speed2-speedLense hood-RetractableAccuracy(standard deviation for 1km double run leveling)Without micrometer2(0)(0)(0)With micrometer0(0)CompensatorTypependulum compensator with magnetic damping systemWorking range± 15′Setting accuracy0"0"Horizontal CircleDiameter103mm (4)Graduation1°/1gonGeneralSensitivity of round level10′/2mmMirror for circular levelPlane mirrorpentaprismHorizontal motion driveClampless, endless, double-sided knobsWater resistanceIPX6(IEC60529)Operating temperature-20-+50°C (-4 to +122°F)Size122mm× 215mm× 135mm130mm× 215mm× 140mmWeight1 (3 lb)

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