Operating Instructions - York Survey Supply Centre
Contents
1. Automatic Level Prospect House George Cayley Drive Clifton Moor York England YO30 4XE Tel 44 0 1904 692723 Fax 44 0 1904 690385 E Mail sales yorksurvey co uk Code 750550 750590 Sa Operating Instructions Ref operat98 instructions 11 750550 qxp 19 01 11 York Survey Supply Centre 2010 20x 26x amp 32x Automatic Level The ideal automatic level for Builders Contractors Landscapers Architects Surveyors Engineers Automatic Level Operating Instructions 7 Remove Instrument from container and fasten to tripod with central mounting screw Centre circular bubble by adjusting the three foot screws Turn telescope towards a light coloured background and turn eyepiece until cross hairs appear black and distinct Turn focusing knob located on right side of telescope in order to focus telescope on target the focusing unit has a fine and coarse control For distance measurement using the levelling staff multiply by 100 the difference between the reading of the top of the two small crosshairs stadia and the reading of the lower of the small crosshairs Checking the circular bubble Level instrument as in 2 Rotate instrument 180 Ensure bubble always centres if not remove one half of deviation using footscrews and half by utilising both adjustment screws on bubble Checking line of sight figure 1 Ref operat98 instructions 11 750550 qxp 19 01 11 a Set up level betw2. Mark Mark 26 32 2 0mm 1 5mm 26 x 32 x 40mm 40mm 3 5m 0 5m 15 0 5 8 Peramm York Survey Supply Centre 2007
3. een two levelling staves about 30m apart Read staves in each direction and note height difference b Set up level near one of the staves approx 1m and read both staves noting height difference If adjustment is correct height difference should be same as in a above Specification Nitrogen filled to prevent telescope condensation Optical sight for fast alignment to the target object Three foot screw instrument levelling Bubble reading prism at eye level for convenient checking Robust metal housing for protection against damage 20x 26x amp 32x Magnification Accuracy 2 5mm 2mm amp 1 5mm for 1km double run levelling Minimum focussing distance 500mm Friction braked rotation Endless horizontal drive knobs each side Stadia hairs for distance measuring 360 degree horizontal circle Fits on any standard s tripod flat or domed head Orange finish provides instant visibility Accuracy Telescope Magnification Objective Aperture Field of View at 100m Shortest Focussing Distance Working Range of Compensator Levelling Accuracy Circular Level Horizontal Circle Direct Reading Estimation Weight Carrying Case Operating Instructions Automatic Levels And Outfits York Survey Supply Centre offers a range of automatic levels suitable for use in general building applications through to precision levelling for surveying and engineering projects Please call for further details Level Level
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