background image

12 

with respect to the horizontal cross hair. Then the compensator is working 
and  the  line  of  sight  is  horizontal.  The  press  button  also  verifies  the 
leveling up of the 

ESL2

, because the

 

staff image will not show the 

correct movement on pressing the button if the circular level is a long away 
from its central  position,  but  the  movement  will  be  quicker  and  shorter 
due  to  the  pendulum  reaching  its  stop  line.  To  level  up  the  instrument 
until the circular level lies in the centre of its setting circle.

 

6. Measuring

Before starting field work or after longer periods of storage/transport of

your equipment check the field adjustment parameters specified in this User 

Manual. 

  Reduce possible vibrations by holding the tripod legs. 

  If the optical parts of your instrument are dirty of fogged, your 

measurements can be affected. Keep clean all optical parts of your 

instrument and follow the cleaning instructions specified in the User Manual. 

  Before starting work, let the instrument adjust to the ambient 

Содержание ESL2

Страница 1: ...1 Automatic Level ESL2 INSTRUCTION MANUAL...

Страница 2: ...ta 6 4 Description 7 4 1 Instrument 8 4 2 Leveling Staffs 9 4 3 Tripod 10 5 Instructions for Use 10 5 1 Unpacking and Setting Up 10 5 2 Leveling Up 10 5 3 Focusing and Sighting 11 5 4 Compensator Chec...

Страница 3: ...g 2 15 6 3 Precise Height Measurement with ESM1 fig 3 16 7 Testing and Adjusting 19 7 1 Tripod 19 7 2 Circular Level fig 5 19 7 3 Horizontality of the Line of Sight 21 8 Care and Transport 24 8 1 Tran...

Страница 4: ...lass reading scale Range Interval Estimation 10mm 0 1mm 0 01mm 2 Applications Model ESL2 Automatic Level is adoptable for the second and third class leveling It is also used for general construction e...

Страница 5: ...cope Image Erect Magnification 32x Clear objective aperture 45mm Shortest focusing distance 1 6m Multiplication factor 100 Additive constant 0 Compensator Working range 14 Setting accuracy 0 3 Circula...

Страница 6: ...plate 6 Telescope eyepiece 2 Footscrew 7 Press button 3 Horizontal drive endless 8 Circular level 4 Telescope objective housing 9 Prism for viewing circular level 5 Optical sight 10 Focussing knob wit...

Страница 7: ...50 Provided the circular bubble 8 sensitivity 8 per 2mm has been set in its setting circle by turning the three footscrews 2 The line of sight will be automatically horizontal as the pendulum will be...

Страница 8: ...al eyepiece The reticle has wedged shaped hairs for precise leveling with the parallel plate micrometer and a single horizontal hair for normal leveling staffs It also has 1 100 stadia hairs 6 2 The f...

Страница 9: ...od head 5 Instructions for Use 5 1 Unpacking and Setting Up When setting up the tripod The legs must be trodden firmly into the ground The tripod head should be as horizontal as possible and height sh...

Страница 10: ...turning the instrument by hand the telescope is pointed roughly at the Leveling staff Turn the focusing knobs 10 which have coarse and fine motion Until the staff image appears sharp and free from par...

Страница 11: ...top line To level up the instrument until the circular level lies in the centre of its setting circle 6 Measuring Before starting field work or after longer periods of storage transport of your equipm...

Страница 12: ...crease from the bottom to the top in the field of view 3 Take the nearest whole centimeter value from the graduation below the horizontal cross hair 114cm and estimate the millimeters within the centi...

Страница 13: ...3m Upper stadia A1 1 216m Lower stadia A2 1 068m 1 2 A1 A2 1 142m Should the telescope image tremble due to ground vibrations or a strong wind the observer can reduce the effects by holding the tripod...

Страница 14: ...nstrument to the staff see fig 3 ESL2 field of view with leveling staff Height reading from horizontal hair 1 143m Example Upper stadia A1 1 216m Lower stadia A2 1 068m A1 A2 0 148m 100 Horizontal Dis...

Страница 15: ...accuracy the ESL2 is used with the parallel plate micrometer ESM1 The micrometer is slipped onto the telescope objective and locked in position by turning the locking knob Reading magnifier Micrometer...

Страница 16: ...Procedure 1 Sequence of measurements is the same as with normal height leveling measurement 2 When reading the staff turn the micrometer knob until a graduation line is centered between the wedge sha...

Страница 17: ...18 serves as a check Example above Staff reading 77cm Micrometer reading 0 556cm Height 77 556cm Fig 4...

Страница 18: ...e legs just remain spread out 7 2 Circular Level fig 5 The tripod with instrument attached is set up on firm ground Using the three footscrews the circular bubble is centered exactly in the middle of...

Страница 19: ...f the setting circle It is turned only until the bubble reaches the centre of the circle or until it can be set in the centre by means of the other screw It is necessary to complete the adjustment tha...

Страница 20: ...mpensator with the press button readings a1 and a2 are taken to the staffs held at B and C with the instrument at D readings a3 to C and a4 to B are then taken If the line of sight is absolutely horiz...

Страница 21: ...ading a4 differs from the computed correct value a4 by more than 2mm in 30m the whole procedure must be repeated If the difference is confirmed the line of sight must adjusted as described Fig 6 Testi...

Страница 22: ...ke a more precise adjustment 7 3 2 Adjusting Fig 6 and Fig 7 Fig 7 Adjusting the line of sight The instrument is still at D The line of sight is adjusted by shifting the reticule plate slightly This i...

Страница 23: ...the adjustment 8 Care and Transport 8 1 Transport Transport in the field When transporting the equipment in the field always make sure that you Either carry the product in its original transport conta...

Страница 24: ...tment After transport inspect the field adjustment parameters given in this user manual before using the product 8 2 Storage Product Respect the temperature limits when storing the equipment particula...

Страница 25: ...a clean soft lint free cloth for cleaning If necessary moisten the cloth with water or pure alcohol Do not use other liquids these may attack the polymer components Damp products Dry the product the...

Страница 26: ...27 NOTE These designs figures and specifications are subject to change without notice We shall not be held liable for damages resulting from errors in this instruction manual...

Отзывы: