Theodolite PENTAX ETH-502
Pentax ETH-502 Electronic Theodolite - 2" Accuracy.
Key Features include
· Large easy to read-display
· Zero set and reverse angle display
· A row of soft keys allows simple and fast operation.
· A large display (LCD) is incorporated on both sides of the instrument. Both vertical and horizontal angles are displayed in degrees or gons.
· All the models have a bright 30x magnification telescope which ensures sharp and clear images even in poor light conditions.
· Clockwise and counter-clockwise angle measurement
· Conversion of the vertical angle to a percentage grade
· Zero setting of the horizontal angle at any position
· Horizontal angle ‘Hold key function
· Clockwise and counter-clockwise angle measurement
· Conversion of the vertical angle to a percentage grade
· Zero setting of the horizontal angle at any position
· Horizontal angle ‘Hold key function
· Powered by Alkaline batteries
Applications
· Setting out right angles and checking plumb
· Alignment measurements
· Anchor bolt layout
· 90° layout
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Electronic Theodolites ETH-500
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Series Specification
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Model
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ETH-502
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ETH-505
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ETH-510
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ETH-520
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Telescope
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Imaging
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Erect image
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Objective aperture
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45 mm
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Magnification
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30 x
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Resolution
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≤ 3”
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Field of view
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1° 20’
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Shortest focusing distance
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1.35 m
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Stadia multiplication constant
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100
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Stadia addition constant
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0
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Angle Measuring
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Angle measuring mode
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Absolute encoder
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Angle measuring accuracy
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2"
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5"
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10"
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20"
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Angle display
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1"/5"
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1"/5"
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5"/10"
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10"/20"
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Angle unit
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360°/400G
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Compensator
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Tilt sensor
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Automatic vertical compensation
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Tilt compensator
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Yes
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Yes
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No
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No
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Soft switch
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ON/OFF
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ON/OFF
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- -
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- -
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Compensation range
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± 3’
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Display unit
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Two-sided
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Two-sided
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Optical plummet Image
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Erect
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Erect
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Magnification
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3 x
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Angle of vision
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3°
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Focusing range
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0.5 m ~ ∞
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Sensitivity of tubular vial mm
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30”/2
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30”/2
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40”/2 mm
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40”/2 mm
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Sensitivity of circular vial
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8’/2 mm
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Dust & Water Protection
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IP44
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Type of base
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Detachable
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Power supply
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Battery
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4 x single three (AAA) type dry battery
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Ambient temperature
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For operation
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-20°C - +50°C
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Weight
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Instrument
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4.5 kg
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Measurements
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Carrying case
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1.9 kg
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Instrument
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W 175 mm x L 170 mm x H 334 mm
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Carrying case
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W 330 mm x L 450 mm x H 220 mm
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