Theodolite - Pentex

Theodolite – Pentex

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Model

ETH-502, ETH-505

ETH-510, ETH-520

 

Category:

Description

Features

  • 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

Specifications

ModelSeries SpecificationETH-502ETH-505ETH-510ETH-520
TelescopeImagingErect image
Objective aperture 45 mm
Magnification30 x
Resolution 
 
≤ 3"
Field of view 
 
1° 20'
Shortest focusing distance 1.35 m
Stadia multiplication constant 100
Stadia addition constant 0
Angle MeasuringAngle measuring mode Absolute encoder
Angle measuring accuracy 2"5"10"20"
Angle display 1"/5"1"/5"5"/10"10"/20"
Angle unit 360°/400G
CompensatorTilt sensor Automatic vertical compensation
Tilt compensator YesYesNoNo
Soft switch ON/OFFON/OFF
Compensation range ± 3'
Display unit
 
Two-sidedTwo-sided
Optical plummet ImageErectErect
Magnification3 X
Angle of vision 
Focusing range 0.5 m ~ ∞
Sensitivity of tubular vial  mm 30"/230"/240"/2 mm40"/2 mm
Sensitivity of circular vial 8'/2 mm
Dust & Water ProtectionIP44
Type of baseDetachable
Power supplyBattery 4 x single three (AAA) type dry battery
Ambient temperatureFor operation -20°C - +50°C
WeightInstrument 
 
4.5 kg
MeasurementsCarrying case 1.9 kg
Instrument W 175 mm x L 170 mm x H 334 mm
Carrying case W 330 mm x L 450 mm x H 220 mm

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