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Pentax ETH-302, Instruction Manual

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Pentax ETH-302 Instruction Manual Download Page 6

6

CONTENTS

• 5.

Measurement

34

5.1  

Horizontal angle measurement (right)

5.2  

Horizontal angle measurement (left)

5.3  

Vertical angle measurement

• 6.

Inspection and Adjustment

37

6.1  

Instructions on inspection and adjustment

6.2  

Perpendicularity of plate vial to vertical axis

6.3  

Perpendicularity of circular vial to vertical axis

6.4  

Inclination of reticule graduations

6.5  

Perpendicularity of line of sight to horizontal axis

6.6  

Difference of the vertical angle

6.7  

Optical plummet

• 7.

Optional Accessories

44

7.1  

Diagonal eyepiece

• 8.

Specifications

45

Summary of Contents for ETH-302

Page 1: ...1 3 5905 1222 Fax 81 3 5905 1225 E mail international piic pentax co jp ETH 302 ETH 305 ETH 310 Instruction manual Total Construction Solutions 10 sec Angle Accuracy Detachable Tribrach 5 sec Angle Ac...

Page 2: ......

Page 3: ...WARNING Items indicated by this display are precautions which if ignored could result in death or serious injury CAUTION Items indicated by this display are precautions which if ignored may result in...

Page 4: ...eg due to a loose screw Do not carry a tripod with the metal shoe pointing toward another person as the person may be injured if they strike them Make sure that your hands and feet are not in the vici...

Page 5: ...Other functions 2 4 1 Remaining battery indicator 3 Special Key Operations 22 3 1 Setting of vertical angle 3 2 Setting of 90 buzzer 3 3 Setting of correction of vertical angle 3 4 Setting of angle m...

Page 6: ...Instructions on inspection and adjustment 6 2 Perpendicularity of plate vial to vertical axis 6 3 Perpendicularity of circular vial to vertical axis 6 4 Inclination of reticule graduations 6 5 Perpend...

Page 7: ...er completely dried Be sure to store instrument in the case Avoid storing in a place that is subject to high temperature high humidity or dust When not in use for extended periods remove a battery fro...

Page 8: ...ning materials Inspection Adjustment and Repair Overhaul When not in use for extended periods of having been subjected to impact or vibration be sure to check the instrument adjustments before using I...

Page 9: ...ize full capability of the instrument adhere to cautions described in each chapter of this manual 1 2 Standard Equipment Body with objective cap Battery box One battery box is installed in the instrum...

Page 10: ...Take the instrument out of the case Storing Set the telescope almost horizontal and lightly tighten the telescope clamp screw Align the containing marks and lightly tighten the horizontal clamp screw...

Page 11: ...11 1 3 Names of Parts Handle Screw for handle Objective lens Optical plummet Leveling screw Bottom plate Tribrach locking lever Collimator Instrument height mark 215mm...

Page 12: ...12 Eyepiece cap Eyepiece lens Focusing knob Plate vial LCD panel Keyboard Battery box Telescope tangent screw Telescope clamp screw Horizontal clamp screw Horizontal tangent screw Circular vial...

Page 13: ...ove Confirm the correct work by pressing the power switch This instrument can operate using 1 2V AA rechargeable batteries The four 4 batteries in a battery box should be of the same type Do not use b...

Page 14: ...horizontal angle 2 2 Keyboard V key Switches the display of vertical angle R L key Set the horizontal angle right and left rotation alternately HOLD key Pressing twice holds the horizontal angle shown...

Page 15: ...d the Horizontal and Vertical angle are displayed and the instrument enters into the angle measurement mode Setting vertical angle 0 point Set the vertical angle 0 point by turning the telescope upwar...

Page 16: ...V key will change the Vertical angle display to V slope At the shipping it is set at Zenith 0 By special key operation horizontal 0 VH and Compass Vc can be set Factory default is Zenith 0 Refer to 3...

Page 17: ...17 The error OVER RANGE is displayed when the telescope exceeds 45 100 in the V display mode...

Page 18: ...gle and retain it Press once the key buzzer will sound then press again during the sound Press the key once more to release To prevent operation error the buzzer sounds for three seconds when the HOLD...

Page 19: ...l angle 0 00 00 Press once the key buzzer will sound then press again during the sound Press the key once more to release To prevent operation error the buzzer sounds for three seconds when the OSET k...

Page 20: ...tion HR Counterclockwise horizontal angle Count horizontal angle in a left rotation direction HL If the power turns off during the counterclockwise mode the display returns to a clockwise horizontal a...

Page 21: ...y full operating possible Operation possible Operation still possible Get the battery ready for a stand by Replace batteries Automatic Power off function If there is no key operation for about 30 minu...

Page 22: ...key operation enables selection of angle unit and other such items Press HOLD key and 0SET key at the same time Press ON OFF key Release ON OFF key No display or buzzer Release HOLD key and 0SET key...

Page 23: ...ey Setting of 90 buzzer Press R L key Setting of correction of vertical angle Press R L key Setting of angle display Press R L key Setting of automatic power off function Press R L key Setting of Angl...

Page 24: ...tting of Vertical Angle Vertical angle setting display by special key operation Zenith 0 V Setting is switched by pressing 0SET key Horizontal angle 0 VH Compass Vc Store with V key when the setting i...

Page 25: ...ing is switched by pressing 0SET key With 90 buzzer Store with V key when the setting decided 3 3 Setting of correction of vertical angle Correction of vertical angle setting display by special key op...

Page 26: ...H 302 305 Setting is switched by pressing 0SET key Store with V key when the setting decided For models ETH 310 Setting is switched by pressing 0SET key Store with V key when the setting decided For E...

Page 27: ...ion Automatic power off active Setting is switched by pressing 0SET key Automatic power off inactive Store with V key when the setting decided 3 6 Setting of Angle unit Setting is switched by pressing...

Page 28: ...to the ground so that the tripod head is as level as possible and centered above the station point If the tripod head is disturbed by the action of fixing the metal shoe into the ground correct the le...

Page 29: ...center of the vial See A To adjust the screws at the same time turn them in opposite directions Adjust the remaining leveling screw and position the bubble in the center of the circle See B For the r...

Page 30: ...the bubble in the center of the vial by operating the remaining one leveling screw See B Confirm if the bubble stays in the center by rotating the instrument 180 If the bubble moves repeat procedure...

Page 31: ...move the instrument bottom plate until the reticule center coincides with the station point Take care not to rotate the instrument Tighten the tripod center screw Ascertain that the bubble stays posi...

Page 32: ...eyepiece completely counterclockwise Look through the eyepiece and rotate the eyepiece clockwise until the reticule appears at its maximum sharpness At procedure keep your eye relaxed to prevent paral...

Page 33: ...th the object using each tangent screw In procedure focus on the object correctly so that the reticule will not move in relationship to the object when you move your eye slightly left and right while...

Page 34: ...tangent screw as well as the telescope clamp and tangent screw Press 0SET twice to set the horizontal angle to 0 00 00 Sight the second object using the horizontal clamp and tangent screw as well as t...

Page 35: ...p and tangent screw Press the R L key to switch the horizontal angle display to counterclockwise reading HL Subsequent operation will be done as in 5 1 Horizontal angle measurement right but the order...

Page 36: ...escope clamp and tangent screws Read the displayed value The vertical angle mode can be changed to slope percent display V by pressing V key Also horizontal 0 VH and compass Vc can be set using specia...

Page 37: ...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 p...

Page 38: ...nt 180 move the bubble half way back to the center by operating a leveling screw which is located parallel with the plate vial Rotate the vial adjusting screw with the adjusting pin and position the b...

Page 39: ...the inspection and adjustment of 6 2 Plate vial No adjustment is necessary if the bubble of the circular vial is in the center but if not the following adjustment is required Adjustment Move bubble to...

Page 40: ...int A to the edge of the field of view by adjusting the telescope tangent screw point A No adjustment is necessary if point A moves along the vertical line of the reticule If the point A does not move...

Page 41: ...t on the line of sight at about the same distance to the object point A and call it point B Loosen the horizontal clamp screw and rotate the instrument around the vertical axis Sight point A again Loo...

Page 42: ...cope and read the vertical angle V correct Reverse the telescope and rotate the alidade Sight point P again in the reverse position and read the vertical angle V reverse At this time when V correct V...

Page 43: ...st the intersection point of the cross If the center mark always coincides with the intersection point no adjustment is necessary When it does not coincide the following adjustments are required Adjus...

Page 44: ...ece ring counterclockwise to remove the eyepiece Be sure to hold the eyepiece securely so that you do not drop it Attach the diagonal eyepiece to the telescope by reversing the procedure The diagonal...

Page 45: ...t Type Incremental rotary encoder Detection mode V angle Single H angle Dual Minimum Display Selectable ETH 302 1 5 ETH 305 1 5 ETH 310 5 10 ETH 320 10 20 Accuracy DIN18723 Standard deviation ETH 302...

Page 46: ...l 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...

Page 47: ......

Page 48: ...the requirements of the EC directive for safety 2 5 2 Higashi Oizumi Nerima ku Tokyo 178 0063 Japan Tel 81 3 5905 1222 Fax 81 3 5905 1225 E mail international piic pentax co jp PENTAX Industrial Inst...

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