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Total Construction Solutions
Electronic
Instruction manual
Theodolites
2 sec. Angle Accuracy
ETH-302
Detachable Tribrach
5 sec. Angle Accuracy
ETH-305
Detachable Tribrach
10 sec. Angle Accuracy
ETH-310
Detachable Tribrach
20 sec. Angle Accuracy
ETH-320
Detachable Tribrach
PENTAX Industrial Instruments Co., Ltd.
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
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Safety Precautions (must be followed) The following items are intended to prevent possible injury to the user or other people and/or damage to the instrument before it occurs. These safety precautions are important to the safe operation of this product and should be observed at all times. Distinctive Displays • The following displays are used to distinguish precautions by the degree of injury of damage that may result if the precaution is ignored. WARNING Items indicated by this display are pr
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CAUTION • Secure the handle of main unit with the handle locking screws. Failure to properly secure the handle could result in the main unit detaching from the handle while being carried, causing injury. • Do not use the carrying case as a footstool as it is slippery and unstable and may cause you to fall, resulting in possible injury. • When mounting the instrument to the tripod, tighten the center screw securely. Failure to tighten the screw properly could result in the instrument falling o
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CONTENTS •1.General 7 1.1 Precautions 1.2 Standard equipment 1.3 Names of Parts 1.4 Preparation of power •2.Key Operations and Display 14 2.1 Display 2.2 Keyboard 2.3 Function of each key 2.3.1 Power on-off key 2.3.2 V/% key 2.3.3 Hold key 2.3.4 0 set key 2.3.5 R/L key 2.3.6 Illumination key 2.4 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 S
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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. Optiona
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1. General 1.1 Precautions Storing and environmental conditions • Do not use the instrument until it has adjusted to the ambient temperature. • Avoid using at a high or low temperature. The instrument may not work normally at temperatures exceeding –10 or +50˚C. • When the instrument gets wet, wipe off the water immediately and let it completely dry outside of the case. Store in the case after completely dried. • Be sure to store instrument in the case. Avoid storing in a place that is subje
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Transportation • Do not subject to impact or vibration during transportation. • When transporting, handle the same as ”fragile” and pack the shipping case with cushioning 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. • If there is any problem in the instrument, do not attempt to repair or you may make the problem worse. Contact your local
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Others • When cleaning the case or the instrument, do not use any organic solvent. The surface of plastic parts may dissolve and deformation and discoloration can occur. Wipe off the dirt with a wet cloth of dilute household detergent • Wipe off dirt on the optics with a cleaning cloth (or paper) specified for optical surfaces. • To realize full capability of the instrument, adhere to cautions described in each chapter of this manual. 1.2 Standard Equipment • Body (with objective cap) • Batt
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Unpacking and Storing Unpacking • Gently set down the carrying case so that its cover is upward. • Unlatch and open the case while pushing the latch lock. • 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. • Insert the instrument into the case with the containing marks* facing upward. • Close the case lid and lock the latches. *Conta
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1.3 Names of Parts Handle Screw for handle Collimator Objective lens Instrument height mark (215mm) Optical plummet Leveling screw Bottom plate Tribrach locking lever 11
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Eyepiece cap Eyepiece lens Battery box Telescope tangent screw Focusing knob Telescope clamp screw Plate vial Horizontal clamp screw LCD panel Horizontal tangent screw Keyboard Circular vial 12
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1.4 Preparation of Power • Remove battery box from the unit by pushing the release button on the top of the battery box. Remove the battery box cover. • Insert four AA batteries into the battery box according to (+) and (-). • Press the battery box to the leg by inserting the guide pin to the guide groove. • 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 t
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2. Key Operations and Display 2.1 Display Vertical angle V=Zenith 0°, V%=Slope(VH=Horizontal 0°, Vc=Compass) Horizontal angle Battery indicator: (HR=right rotation horizontal angle, HL=left rotation 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 on the display) [0SET] key (Pressing twice resets the horizontal angle to 0°,00’,0
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2.3 Function of each key 2.3.1 Power [ON/OFF] key 1 Pressing the ON/OFF key turns on the power supply and the message ”0 SET” is displayed. After the ”0 SET” of vertical angle is performed, the Horizontal and Vertical angle are displayed and the instrument enters into the angle measurement mode. 2 Set the vertical angle 0 point by turning the telescope upward or downward when the instrument is at the ”normal” posit
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2.3.2 [V/%] key Pressing the 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 3.1 Setting of vertical angle.) 16
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The error ”OVER RANGE” is displayed when the telescope exceeds 45°(100%) in the V% display mode. 17
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2.3.3 [HOLD] key 1 Press the [HOLD] key twice in succession to hold the displayed horizontal angle and retain it. (Press once, the key buzzer will sound, then press again during the sound.) 2 Press the key once more to release. To prevent operation error, the buzzer sounds for three seconds when the [HOLD] key is pressed. HOLD is not initiated unless the key is pressed during the buzzer sound. 18
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2.3.4 [0SET] key 1 Press the [0SET] key twice in succession to reset the displayed horizontal angle 0°,00’,00”.(Press once, the key buzzer will sound, then press again during the sound.) 2 Press the key once more to release. To prevent operation error, the buzzer sounds for three seconds when the [OSET] key is pressed. [OSET] is not initiated unless the key is pressed during the buzzer sound. 19
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2.3.5 [R/L] key Press the [R/L] key to change from clockwise to counterclockwise rotation. A clockwise or counterclockwise reading is alternately displayed each time the key is pressed. 1 Clockwise horizontal angle Count horizontal angle in a right rotation direction (HR) 2 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 angle display when power is
