Pentax ETH-302, ETH-310, ETH-305 Perpendicularity of circular vial to vertical axis

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6.3 Perpendicularity of circular vial to vertical axis

Inspection

1Confirm if the bubble of the circular vial is in the center after the inspection and adjustment of [6.2 Plate vial].

2No adjustment is necessary if the bubble of the circular vial is in the center but if not, the following adjustment is required.

Adjustment

1Move bubble to the center by rotating the bubble adjusting screws, using the adjusting pin.

2Inspect again.

Circular vial

Bubble adjusting screws

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Contents Electronic Theodolites Page Distinctive Displays Safety Precautions must be followedPage Contents Contents Storing and environmental conditions PrecautionsBattery GeneralTransportation Inspection, Adjustment and Repair, OverhaulOthers Standard EquipmentUnpacking and Storing Names of Parts Page Confirm the correct work by pressing the power switch Preparation of PowerKey Operations and Display DisplayKeyboard Function of each key Power ON/OFF key2 V/% key Page Hold key 4 0SET key Illumination key 5 R/L keyRemaining battery indicator Automatic Power-off functionOther Functions Special key operations Page Setting of Vertical Angle Setting of correction of vertical angle Setting of 90buzzerSetting of angle measurement Setting of Angle unit Setting of automatic power off functionPreparation for Surveying Setting up the instrumentLeveling with the Circular level Leveling with the Plate level Centering with the optical plummet Eyepiece adjustment Object sighting Horizontal angle measurement right MeasurementHorizontal angle measurement left Vertical angle measurement Inspection Inspection and AdjustmentInstructions on inspection and adjustment Perpendicularity of plate vial to vertical axisAdjustment 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 AccessoriesVertical Angle Compensation SpecificationsTelescope Angle MeasurementVertical axis Power sourceWater resistant Ambient temperature DimensionsPage Certified