Pentax ETH-305, ETH-302, ETH-310 specification

The error ”OVER RANGE” is displayed when the telescope exceeds 45°(100%) in the V% display mode.

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Pentax ETH-305, ETH-302, ETH-310 instruction manual

Contents

Electronic Theodolites Page Distinctive Displays Safety Precautions must be followedPage Contents Contents Battery PrecautionsGeneral Storing and environmental conditions Transportation Inspection, Adjustment and Repair, Overhaul Others Standard Equipment Unpacking and Storing Names of Parts Page Confirm the correct work by pressing the power switch Preparation of Power Keyboard Key Operations and DisplayDisplay Function of each key Power ON/OFF key 2 V/% key Page Hold key 4 0SET key Illumination key 5 R/L key Other Functions Remaining battery indicatorAutomatic Power-off function Special key operations Page Setting of Vertical Angle Setting of correction of vertical angle Setting of 90buzzer Setting of angle measurement Setting of Angle unit Setting of automatic power off function Preparation for Surveying Setting up the instrument Leveling with the Circular level Leveling with the Plate level Centering with the optical plummet Eyepiece adjustment Object sighting Horizontal angle measurement right Measurement Horizontal angle measurement left Vertical angle measurement Instructions on inspection and adjustment Inspection and AdjustmentPerpendicularity of plate vial to vertical axis Inspection Adjustment Perpendicularity of circular vial to vertical axis Inclination of reticule graduations Perpendicularity of line of sight to horizontal axis Difference of the vertical angle Optical plummet Diagonal Eyepiece SB14 Optional Accessories Telescope SpecificationsAngle Measurement Vertical Angle Compensation Water resistant Ambient temperature Power sourceDimensions Vertical axisPage Certified