Pentax AL-M2S User's Manual
Contents
1. amp oos e FE ois qc p COR NG 7 Operation 1 Preparation for surveying 1 Setting up the tripod 8 2 Setting up su a ck DURS REFER RU EXER 8 2 Leveling simrer etea eR ca ova er ke e ER ENS 9 Observation 1 Reticle collimation eye vios es Ga cee wal een whee td 9 2 SIGNS Kao cbe Venit Te x 10 3 Reading the sta arre 11 3 Surveying EEUU MP hae aa ce emer ead 11 2 Stadia 12 3 Angle measurement 13 Maintenance and packing MBINIGNENGE icra hele xao pida ea mete tede 14 2 Packing aues vacui DOR QE vo 14 Precaution a a Shure EE TR ae 15 Inspection and adjustment Circular level corvo EX ex a A WORSE Y EU aS eat 15 2 Eevalimg line OF SIGN ww wa E ERE RD qu Bar a ES 16 Optional accessories 1 Electric illumination 18 2 Parallel plate micrometer 5 3 19 Diagonal eyepiece SBL1 loco xe m Rn 21 Features Easy to operate due to simple design and compact and light construction The telescope is of dust and water resistance enabling use of the instru ment in t2. Indexing line 84 30 Fig 12 B When reading horizontal angle be sure and put yourself just in front of it Make use of symboi Y marked every 90 or 100G for right angle setting 2 For AL M2S n LA m M re Arii nm d ee e Circle reading 127725 eyepiece B Fig 13 13 6 Maintenance and packing 1 Maintenance 1 Clean dust or water from the instrument and then put it back to the case after using it 3 Brush dust off wipe off moisture on exposed parts with a soft cloth 3 Wipe off the moisture on the surface of the lenses with a cotton cloth using light pressure after brushing the dust off 2 Packing 1 Gently put the instrument into the case facing focussing knob toward you 2 Close the case and secure the latch Focussing A knob Fig 14 7 Precaution lt gt Attach the sunshade to the telescope to avoid the direct sunlight when high precise survey needed lt gt Operate the instrument carefully Do not apply excessive pressure to it Q Store the instrument in a dry place removing dust or moisture after use of it lt gt Be careful not to subject the instrument to impact or vibration during trans port c When moisture or disorder is found inside the lens contact your dealer do not attempt to dismantle the instrument by yourself lt gt When any malfunction due to falling down or some other cause is recog nized con
3. PENTAX AUTOMATIC LEVEL L Me SERIES AL Mcge AL M8c AL M8s INSTRUCTION MANUAL ASAHI PRECISION CO LTD For proper operation of instrument Pentax automatic level AL M2 series consist of a variety of instruments in order to comply with a wide range of surveying from second or third order leveling surveying to civil engineering requiring high accuracy Our surveying instruments are precise in function and precision made Survey ing instrurnents do not either work well nor become of value unless they are carefully handled and operated For the instrument to work efficiently and be useful for long time read through this instruction book Storage This instrument should be stored in dry dust proof room which does not have a big temperature range When the instrument is stored for a long time it must occasionally be taken out of the case and air circulated freely around the instrument When storage or transportation temperature is extremely different from the working temperature the instrument must be allowed to coma to the ambient temperature Exposure time required is approximately one minute per one degree temperature difference Transport For shipment the instrument should be packed with cushioning material with reasonable thickness on all sides Insurance coverage is recommended Vehicle transportation does not require packing but movement should be restricted by securing it When heavy vibration or rough tra
4. e of sight adjusting ring Reflecting prism Circular bubble Leveling screw Horizontal drive screw Fig 2 Foot plate M Circle reading eyeptece Fig 3 For 25 only 3 Equipment 1 Standard Equipment aeo doe ex er Saad ees 1 Carrying case Vu TEES DER RS ux ere 1 ODIGCUIVE i oss Satine Ib ba pk ke aca cada eee ees iain stunted Shean CE 1 Plumb bob AL M2C M25 only 1 ocrew GIVER 255 EE hae eS cede ma Kener RM eee sen 1 Adjusti g BINS oie oos o sas hate Em RR ds 2 EU S cie dcs sat erwies eae a ace eee eee iat ha M E 1 COVE da us adorent Silic ne cloth ci s rr A ere eed loses tata ig Gussie dera 2 Optional accessories Tripod TS 3 Parallel plate micrometer SM3 Electric illurnination EP Diagonal eyepiece SBL1 4 Specifications Mognication Objective aperture Field of View 2 3 2 3m at 100m or 2 3 feet at 100 feet or 1 20 Minimurn focus distance Setting accuracy 1 km double run levelling Sensitivity 8 2mm M on p Graduation rog wono Least Reading oG 10 or 10c ee Estimation Reading 0 1 0 10 l or te B Tripod attaching screw Thread 5 8 x 11 WDimenions amp Weih _ L
5. elation between the direction of leveling screw rotation and the bubble shifting direction if the bubble is out of the center in 3 adjustment of the circular level on page 15 is needed Leveling screw NE Bubble Bubble circle Leveling screw A Fig 5 B 2 Observation 1 Reticle collimation 1 Remove the objective cap If necessary attach the sunshade Directing the telescope to the bright background rotate the eyepiece coun terclockwise to draw out the eyepiece ring 3 While looking into the eyepiece rotate it clockwise until the cross hair of the reticle comes to its extreme sharpness it is advisable to relax when looking into the eyepiece An intense look at the reticle may tend to cause parallax or eye fatigue Cross hairs A Fig 6 Field of view 2 Sighting 7 Sight the telescope at the object looking through the collimator 2 Looking into the eyepiece rotate the focussing knob until the object be comes clearly visible Make sure that the relation between the object and the cross hair does not change even when you move your eye up or down ward Fig 7 if parallax exists in 2 the relation between the object and the cross hair may change This may cause surveying error Collimator Focussing knob Object Triangle mark Telescope eyepiece S pe zs A 8 Fig 7 3 Reading the staff How to read the graduation on the staff Reading
6. ength SET Height Weight 2 1 Kgs 4 6 Ibs 2 3 Kgs 5 0 Ibs m Case 5 Operation 1 Preparation for surveying 1 Setting up the tripod 1 Prepare the tripod having a center locking screw with 5 8 x 11 thread Dig the legs firmly into the ground and adjust the tripod to the height suitable for observation when the instrument is mounted G For angle measurement set the tripod so that the center of the tripod head is positioned right above the ground point 2 Setting up the instrument D Mount the instrument on the tripod head and secure it using a center lock screw Fig 4 3 Suspend the plumb bob from the hook adjusting the length of the string for angle measurement 3 Loosing the center lock screw move the instrument with the tips of fingers Tighten it as a tip of plumb bob coincides with the ground point for angle measurement Instrument Foot plate Tripod head Center rock screw Hook Fig 4 3 Leveling CD Place the telescope in parallel to the line connecting two optionally selected leveling screws and turn them to move the bubble of the circular level at a position even to the left and the right Fig A Turn the two leveling screws in opposite directions 2 Turning a remaining leveling screw shift the bubble to the center Fig B Make sure that the bubble stays at the center of the circle even after turning the telescope 180 W See arrows in Fig A and B for the r
7. flex mirror Mirror knob 2 Parallel plate micrometer SM3 Parallel plate micrometer is used for leveling or civil engineering work requiring precise accuracy With a bright microscale etched on optical glass it provides reading down to 0 1mm Use the instrument with wedge type reticle for use of the parallel plate mic rometer B Replacement of the reticle if your instrument is equipped with ordinary reticle should be made at your dealer Use second order staff or equivalent to it not ordinary one Operation D Mount the parallel plate micrometer horizontally on the object and counter weight on the eyepiece of the telescope respectively and secure both Fig 19 2 Turning the micrometer knob accurately put the staff graduation between the wedge shaped lines Fig 20 B Read the staff and microscale Counter weight Parallel plate micrometer Clamp knob Micrometer knob A Staff B Microscale Fig 20 Example Staff reading a 123 00 Micrometer reading 2 20 00004010 nennen nnnm nnnm nnn nnn nnns 0 77cm 123 77cm 20 3 Diagonal eyepiece SBL1 Diagonal eyepiece SBL1 is to be used for surveying in a limited space or when the instrument is set at a lower position where it is hard to look into the tele scope Operation 1 Remove the eyepiece cover turning it counterclockwise Fig 1 Screw the diagonal eyepiece in to
8. he rain or tunnel with humidity Minimum focus distance is extremely short 0 8m Anallactic optics of the telescope makes stadia surveying easy as the stadia constant is O With special alloy ribbon with long established reputation a newly developed automatic compensator having magnet damper is of wire suspension type and provides extremely stable surveying results even under unfavorable conditions such as vibration Optical collimator provides fast and accurate sighting Concurved foot plate fits domed head tripod as well as flat head tripod Adjustable reflecting prism permits operator to observe the circular level without changing his operating position thus enabling easy confirmation of leveling Clampless horizontal drive screw equipped with knobs on both ends pro vides endless movement of the telescope AL M2C with a horizontal circle permits horizontal angle measurement as wall as angle setting AL M25 equipped with a glass circle graduated down to 10 or 10c permits angle measurement with higher accuracy Fine coarse focussing screw provides fast and accurate focussing Electric illumination parallel plate micrometer and diagonal eyepiece are available as optional accessories 2 Description Collimator Eyepiece cover Horizontal Eyepiece drive screw lens Foot plate Leveling Fig 1 Screw Circle rotation ring Circle reading window For AL M2C AL M25 only For AL M2C only Collimator Focussing knob Lin
9. tact your dealer do not attempt to forcibly dismantle the instru ment by yourself lt gt Check all parts of the tripod are firmly secured 8 Inspection and adjustment 1 Circular level 1 Inspection 7 Setting the instrument on the tripod level it so that the bubble of circular level is positioned at the center of the circle Refer to P 9 Leveling 2 Turn the telescope 180 3 No further adjustment is necessary if the bubble stays at the center of the circle 2 Adjustment D if the bubble moves out of the center in the circle turn the leveling screw to shift the bubble halfway back after taking off the reflecting prism Fig A 2 Shift the bubble remaining halfway to the center by turning adjustment screws Fig B G Turn the telescope 180 to check to see if the bubble stays at the center of the circle 4 Repeat again from 1 should the bubble move E When doing adjustment finish screws being firmly tightened Circle Bubble Adjustment gt O screw Fig 15 2 Leveling line of sight Target plate Approx 2 A Fig 16 B 1 Inspection D Prepare two same target plates Setting up the instrument midway between two walls at a distance of 50 to 100 meters level it Fig 16 A 2 Sighting both walls alternately adjust the target plates to the height so that readings of the target plates are identical and secure them in position 3 Move the instrument to a position appro
10. the attaching screw of the eyepiece cover 3 Looking into the eyepiece lens of the diagonal eyepiece collimate the reticle Fig 21 E Prior to attaching the diagonal eyepiece to the instrument collimate the reti cle with eyepiece mounted on the telescope Eyepiece Diagonal eyepiece Fig 21 2l PENTAX ASAHI PRECISION CO LTD Miyakezaka Bldg 1 11 1 Nagata cho Chiyoda ku Tokyo 100 Japan Printed in Japan
11. value 2 19bm Fig 8 Reading of the staff should be done at ihe center of the cross hair on the reticle 3 Surveying 1 Leveling How to get the difference in height and the elevation Difference in height Ah backsight b foresight f Elevation at point B ha Elevation at point A ha Ah 5 1 Staff I II S ID Staff I Instrument B S Backsight Staff reading at the point where eleva tion is specified F S Foresight Staff reading at the point where elevation is unspecified Fig 9 Datum level Z Difference in height AH EAh 1 Eb Xf Elevation Ha AH A Datum level Fig 10 B Set the instrument at almost middle of two staffs When reading the staff try to get least reading by tilting the staff back and forth slightly For more precise surveying use the double run method 2 Stadia survey Distance from the instrument to the staff can be measured by the stadia hairs visible within the field of view of the telescope To measure the distance is easy as stadia constant is 0 5 Horizontal distance Difference in reading between of upper and of lower stadia lines 5 100 A Fig 11 B mm 3 Angle measurement except for AL M2 Models equipped with a horizontal circle are capable of horizontal angle mea surement or setting B Example D For AL M2C Triangle mark
12. vel is encountered it is recommended that the instrument be secured in a padded box Checking Before measurement an instrument should be examined according to this instruction book if necessary the instrument should be adjusted Even a new instrument or completely repaired instrument needs to be checked This proce dure is also recommended during long intervals of non use or after long journey At least once per year or more often it is recommended that the instrument should be checked by a qualified Pentax dealer Unpacking When removing an instrument from its carrying case pay attention to how it is positioned so that it can be returned properly Grasp the instrument securely when removing or returning it from or to the case Setting up When installing or removing the instrument on or from the tripod the instru ment should be securely held with one hand while the other hand manipulates tripod center screw The instrument should never be left on the tripod without being fastened down Failure to carry out these instructions can result in a bad accident Careful operation and handling of the instrument in accordance with these instructions and plain common sense will provide long and useful service Contents SU WM PROMS opes EC a t ad t dere Pa op AE 4 Description cce Pe REPERTA YER o esequi bt a ae ced io ae EAE 5 Equipment 6 5
13. x 2 meters from one target plate and level it Fig 16 B 4 Read both target plates 5 No adjustment is necessary if readings of both target plates are identical 2 Adjustment D Sight the farthest target plate through the telescope 2 Remove the eyepiece cover rotate the reticle adjusting screw using the adjusting pin and adjust the reading to be identical to that of the nearest target plate 3 After checking that correct adjustment has been made mount the eyepiece cover back in place maj NEA pum iig p 2 sp NM auam eG eS ass SS tenance Een i QUE Ond ui i in nio yis NE imo V HG ctos y SACS E i ioi oe Adjustment screws 9 Optional accessories 1 Electric illumination EP Electric illumination permits surveying work in tunnel or any dark place by way of illurninating the reticle Light SOUFGG 1o rud eio ke Td bx aU HEY S Green LED Power supply Two 1 5V dry batteries SUM 3 7 It can be mounted in the same way that sunshade is attached to the tele scope objective 2 Turn the switch on and adjust brightness by rotating illuminator knob while looking into the telescope i Remove battery when device will not be used for an extended period as extended storage may cause damage to the device due to leakage of battery acid Electric illumination Re
Download Pdf Manuals
Related Search