background image

-5-

FEATURES

The numbering of the product features 

shown refers to the illustration of the 

instrument on the graphic page.

1

  Objective lens

2

  Optical peep sight

3

  Bubble vial mirror

4

   Lens sunshade

5

  Eyepiece cover

6

   Adjusting screw for sighting line

7

   Eyepiece

8

   Circular bubble vial

9

   Compensator lock

10

   Horizontal circle reference mark

11

   Horizontal circle

12

   Adjusting screw of circular bubble vial

13

   Levelling screw

14

   Tripod mount 5/8” (on the rear side)

15

   Horizontal drive screw

16

   Focusing knob

17

   Allen key

18

   Adjusting pin

19

 Plumb-bob

TECHNICAL DATA

AL8-Series

AL8-26

AL8-32

Accuracy: 

1/16”@100’  

(1.6mm at 30m)

1/32”@100’ 

(1.0mm at 30m)

Working Range: 

300’  

(90m)

400’ 

(120m)

Clear obj. aperture: 

1.4” (36 mm) 

1.6” (40mm)

Setting accuracy: 

+/- 0.8”

 +/- 0.3”

Deviation for 1 km double-run 

leveling

1.5 mm 

1.0 mm

Telescope:

Magnification: 

26 x 

32 x

Image: 

Erect

Erect

Length: 

8.3” (210 mm) 

8.3” (210 mm) 

Shortest focusing distance: 

1’ (0.3m)

1’ (0.3m)

Field of view : 

1° 30’

1° 30’

Stadia ratio: 

100

100

Compensator:

Leveling range: 

±15’

±15’

Magnet dampening: 

Yes

Yes

Sensitivity of bubble: 

8’/2mm

8’/2mm

Содержание AL8-26

Страница 1: ...AL8 Series Owner s Guide www davidwhite com FOR CUSTOMER SERVICE PARTS AND REPAIR CALL 765 581 4097 IMPORTANT IMPORTANT IMPORTANTE Read Before Using Lire avant usage Leer antes de usar AL8 26 AL8 32 ...

Страница 2: ...xtremely rugged field use Like all precision instruments however they should be treated with reasonable care to prolong life and accuracy All instruments are adjusted when they are shipped from the factory It is the customer s responsibility to check and to ensure instruments are adjusted prior to using David White is not responsible for errors caused by instruments that are out of adjustment Cont...

Страница 3: ... 3 13 5 10 11 13 12 9 14 7 15 16 1 15 13 8 4 2 3 17 18 19 6 ...

Страница 4: ...just to the ambient temperature before putting it into operation In case of extreme temperatures or variations in temperature the accuracy of the instrument can be impaired Avoid any impact to or dropping of the instrument After severe exterior effects to the instrument it is recommended to carry out an accuracy check each time before continuing to work Place the instrument in the provided case wh...

Страница 5: ... 14 Tripod mount 5 8 on the rear side 15 Horizontal drive screw 16 Focusing knob 17 Allen key 18 Adjusting pin 19 Plumb bob Technical Data AL8 Series AL8 26 AL8 32 Accuracy 1 16 100 1 6mm at 30m 1 32 100 1 0mm at 30m Working Range 300 90m 400 120m Clear obj aperture 1 4 36 mm 1 6 40mm Setting accuracy 0 8 0 3 Deviation for 1 km double run leveling 1 5 mm 1 0 mm Telescope Magnification 26 x 32 x Im...

Страница 6: ...G It is important that the tripod is set up firmly Make sure that the tripod points are well into the ground On paved surfaces be sure the points hold securely The legs should have about a 3 1 2 foot spread positioned so the top of the tripod head appears level If using a tripod with adjustable legs be sure the leg clamps are securely hand tightened Attach the instrument to the tripod securely han...

Страница 7: ... crosshair appears sharp and deep black Direct the telescope towards the levelling rod if required with help of the optical peep sight 2 Turn the focusing knob 15 until the graduation field of the levelling rod appears sharp Align the crosshair exactly with the center of the leveling rod by turning the horizontal drive screw 14 When the telescope is correctly focussed the crosshair and the image o...

Страница 8: ...ting the Circular Bubble Vial Bring the air bubble of the circular bubble vial 8 in a position between the centre and the end position of the check by turning the levelling screws 13 A 100 30 m a1 A 3 1 m a2 a2 d a1 b1 Using the Allen key 17 turn the adjusting screws 12 until the air bubble is positioned in the centre of the circular bubble vial B A 100 30 m a1 d B A 3 1 m a2 d a2 d b2 a1 b1 d Che...

Страница 9: ...ured height a2 in order to receive the set value for the height b2 at levelling rod B Measure height b2 at levelling rod B When the measured value deviates by more than 3 mm AL8 26 or 2 mm AL8 32 from the calculated set value the crosshair must be readjusted Example a2 1 724m d 0 248m a2 d 1 724 m 0 248 m 1 476m AL8 26 When measuring height b2 must be 1 476 m 3 mm AL8 32 When measuring height b2 m...

Страница 10: ...thorized after sales service center for Dave White s SitePro instruments In all correspondence and spare parts orders please always include the model number and serial number of the instruments All precision instruments should be cleaned lubricated checked and adjusted ONLY at a qualified instrument repair station or by the manufacturer at least once a year In case of repairs send in the instrumen...

Страница 11: ... 90 DAY LIMITED WARRANTY To make a claim under this Limited Warranty you must return the complete product transportation prepaid For details to make a claim under this Limited Warranty please visit www davidwhite com or call 1 855 354 9881 ANY IMPLIED WARRANTIES SHALL BE LIMITED IN DURATION TO ONE YEAR FROM DATE OF PURCHASE SOME STATES IN THE U S AND SOME CANADIAN PROVINCES DO NOT ALLOW LIMITATION...

Страница 12: ...42345D8932 09 15 Printed in China Dave White s SitePro 7619 S 1150 E Otterbein IN 47970 Tel 1 765 581 4097 ...

Отзывы: