Pentax ETH-310, ETH-302 Inspection and Adjustment, Instructions on inspection and adjustment

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6. Inspection and Adjustment

6.1 Instructions on inspection and adjustment

•Inspection and adjustment should be done after setting the instrument on a tripod or on an adjustment stand.

•Inspection should be done sequentially from [6.2 Plate vial] to [6.5 Perpendicularity of line of sight to horizontal axis]

•Adjustments should be finished with adjustment screws having been tightened and with firm torque. Do not finish by loosening an adjustment screw.

•Repeat inspection after adjustment and confirm if the adjustment is performed correctly.

•It is recommended that a trained professional perform adjustments, if possible.

6.2 Perpendicularity of plate vial to vertical axis

Inspection

1Perform [4.3 Leveling with the horizontal vial]

2Rotate the instrument through 90° and confirm if the bubble is always in the center.

3When the bubble is in the center, no adjustment is necessary.

If the bubble moves from the center, following adjustment is required.

Leveling screw

Plate vial

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Contents Electronic Theodolites Page Distinctive Displays Safety Precautions must be followedPage Contents Contents Battery PrecautionsGeneral Storing and environmental conditionsTransportation Inspection, Adjustment and Repair, OverhaulOthers Standard EquipmentUnpacking and Storing Names of Parts Page Confirm the correct work by pressing the power switch Preparation of PowerDisplay Key Operations and DisplayKeyboard Function of each key Power ON/OFF key2 V/% key Page Hold key 4 0SET key Illumination key 5 R/L keyAutomatic Power-off function Remaining battery indicatorOther 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 Instructions on inspection and adjustment 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 Diagonal Eyepiece SB14 Optional AccessoriesTelescope SpecificationsAngle Measurement Vertical Angle CompensationWater resistant Ambient temperature Power sourceDimensions Vertical axisPage Certified