Pentax ETH-310, ETH-302, ETH-305 instruction manual Inclination of reticule graduations

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6.4 Inclination of reticule graduations

Inspection

1Set an object point A on the line of sight through the telescope.

2Move point A to the edge of the field of view by adjusting the telescope tangent screw (point A’).

3No adjustment is necessary if point A moves along the vertical line of the reticule. If the point A does not move along the vertical line of the reticule, it needs adjustment - Consult with your dealer.

Vertical line	Line of sight axis

A'

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Contents Electronic Theodolites Page Safety Precautions must be followed Distinctive DisplaysPage Contents Contents Precautions BatteryGeneral Storing and environmental conditionsInspection, Adjustment and Repair, Overhaul TransportationStandard Equipment OthersUnpacking and Storing Names of Parts Page Preparation of Power Confirm the correct work by pressing the power switchDisplay Key Operations and DisplayKeyboard Power ON/OFF key Function of each key2 V/% key Page Hold key 4 0SET key 5 R/L key Illumination keyAutomatic Power-off function Remaining battery indicatorOther Functions Special key operations Page Setting of Vertical Angle Setting of 90buzzer Setting of correction of vertical angleSetting of angle measurement Setting of automatic power off function Setting of Angle unitSetting up the instrument Preparation for SurveyingLeveling with the Circular level Leveling with the Plate level Centering with the optical plummet Eyepiece adjustment Object sighting Measurement Horizontal angle measurement rightHorizontal angle measurement left Vertical angle measurement Inspection and Adjustment Instructions on inspection and adjustmentPerpendicularity of plate vial to vertical axis InspectionAdjustment 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 Optional Accessories Diagonal Eyepiece SB14Specifications TelescopeAngle Measurement Vertical Angle CompensationPower source Water resistant Ambient temperatureDimensions Vertical axisPage Certified