Pentax ETH-310 Vertical axis, Sensitivity of vials, Tribrach type, Optical plummet, Power source

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Vertical axis

Single

Sensitivity of vials

Plate vial

	ETH-302	30”/2 mm
	ETH-305	30”/2 mm
	ETH-310	40”/2 mm
	ETH-320	40”/2 mm

	Circular vial	8’

	Tribrach type
	Detachable

	Optical plummet
	Magnification	3 x
	Focusing range	0.5 m to Infinity
	Power source
	Type	4 x AA dry battery
	Operation time (Alkaline)	25 to 28 hrs.

(NiMH2300mAh) 25 to 28 hrs.

Water resistant

IP x4

Ambient temperature

- 10 °C to + 50 °C

Height

215 mm

Dimensions

Instrument (including batteries) W168 x H330 x L158mm/4.6kg

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Contents Electronic Theodolites Page Safety Precautions must be followed Distinctive DisplaysPage Contents Contents General PrecautionsBattery 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 Perpendicularity of plate vial to vertical axis Inspection and AdjustmentInstructions on inspection and adjustment 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 SB14Angle Measurement SpecificationsTelescope Vertical Angle CompensationDimensions Power sourceWater resistant Ambient temperature Vertical axisPage Certified