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Contents
1. 7 24 32. 9 6 E 9 6 H F
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34. 3 90 2 x 20 m 40 m 40 m x 0 1 mm m 4 mm CF II d 4 4 mm 4 1 gt ELET
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39. D OBJ BUCH 1492 001 book Page 34 Friday July 1 2011 12 25 PM e SHE J WAGEN AH Fl E ZE EE 3 56 TE v 6 NZ IN HE 1 e e 2x Ab Q 2x e e e 2x Q e 2x Ab Q 2x lt 2 2x Q Q e 2x De O
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44. d I 37 19 AS Der ae IJ 20 39 GRL 250 HV GRL 300 HV GRL 300 HVG Professional Professional Professional 3 601 K61 60 3 601 K61 50 3 601 K61 70 D 30 m 30 m 50 m 125 m 150 m 150 m 0 1 mm m 0 1 mm m 0 1 mm m 1X 8 5 8 5 8 5 15 15 15 150 300 600 rpm 150 300 600 rpm 150 300 600 rpm 10 25 50 10 25 50 10 25 50 10 50 C 10 50 C 0 40 C 20 70 C 20 70 C 20 70 C 90 90 90 2
45. OBJ BUCH 1492 001 book Page 26 Friday July 1 2011 12 25 PM 26 BIS 2 31 1 o e e 2y O 2x5 e e S 2x Q e 2x Q 2x
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47. 1619929423 1 7 11 Bosch Power Tools nn OBJ BUCH 1492 001 book Page 6 Friday July 1 2011 12 25 PM 6 e 1619929 J23 1 7 11 Bosch Power Tools d 1 OBJ_BUCH 1492 001 book Page 7 Friday July 1 2011 12 25 PM 30 GR 240 0 601 094 100 32 1 1 608 MOO 05B GRL 250 HV GRL 300 HV 1 608 MOO 05J GRL 300 HVG 0 601 092 400 1777 EA ss C AN S 0601015400 LR 10 0 601 069 700 2 610 A01 267 Bosch Power Tools 1 608 M00 05A BT 300 HD 0 601 091 400 S 37 1608 MOO 05C GRL 250 HV GRL 300 HV 1608 MOO 05K GRL 300 HVG 39 1 608 MOO 05F 1619929423 1 7 11 an wy e RO OBJ BUCH 1492 001 book Page 8 Friday July 1 2011 12 25 PM 8 English English Safety Notes Rotational Laser Level Working safely with the measuring tool is possible only when the operating and safety information are read completely and the instructions contained therein are strictly followed Never make warning labels on the measuring tool unrecognisable SAVE THESE INSTRUCTIONS Caution The use of other operating or adjusting equipment or the application of other processing methods than those mentioned here can lead to dan gerous radiation exposure
48. 8 39 9 GRL 250 HV GRL 300 HV Professional Professional 3601 K61 60 3601 K61 50 3 601 K61 70 30 30 50 125 150 150 1 2 0 1 0 1 0 1 222K oK 8 5 8 5 8 5 1 20 2 16 1619929J23 1 7 11 RO Bosch Power Tools am Ww 4 PN lt as d OBJ BUCH 1492 001 book Page 29 Friday July 1 2011 12 25 PM rmx 29 GRL 250 HV GRL 300 HV GRL 300 HVG Professional Professional Professional 15 15 15 150 300 600 150 300 600 150 300 600 10 25 50 10 25 50 10 25 50
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52. 35 B 38 LX am K Bosch Power Tools e Go Zi x RO OBJ BUCH 1492 001 book Page 25 Friday July 1 2011 12 25 PM C 37 0
53. 3 Bosch Power Tools am nr e es a OBJ BUCH 1492 001 book Page 19 Friday July 1 2011 12 25 PM ei oe 19 4 21 5 22 23 6 24 7 25 8 26 9 27 10 28 11 29 30 31 32 33 34 12 13 14 15 5 8 16 17 18 GRL 300 HV GRL 300 HVG 35
54. 10 50 C 10 50 C 0 40 C 20 70 C 20 70 C 20 70 C 90 90 90 2 3R 3R 635 NER lt 1 2h 635 Ji K ph 532 lt 5 Sh 1 5 EX 5 EX 5 5 8 11 5 8 11 5 8 11 D Ai 2 x 1 5 LR20 D 2x1 5 LR20 D 2x1 5 LR20 D ZA 60 50 30 EPTA Procedure 01 2003 1 8 1 8 1 8 x x 190 x 180 x 170 190 x 180 x 170 k 190 x 180 x 170 1 20 2 16 IP 54 IP 54 IP54 RC 1 Professional 3 601 K69 900 3 30 10 C 50 C 20 C 70 C 1x1 5 LRO6 AA EPTA Procedure 01 2003 69 g 3
55. 5 EX 19 5 19 Bosch Power Tools am wy 4 EN T Ge e w OBJ BUCH 1492 001 book Page31 Friday July 1 2011 12 25 PM fi HO BMC ws SENTIO PE Ee na TIEFE UD IRR F 32 10 25 50 0 11 SERS ERSE 20 11 20
56. 31 31 33 FRA PER e Hr EDGE TEE ch HIE IE HE Ar F fu 4 29 rp SU i o gt AH 9 6 4 1 3 12 3 3 5 11
57. Assembly Power Supply of the Rotational Laser Level Alkali manganese batteries are recommended for the meas uring tool To open the battery compartment 13 turn the locking knob 14 to position g and pull out the battery compartment When inserting batteries pay attention to the correct polarity according to the representation on the inside of the battery RO Professional Article number 3 601 K69 900 Working range 30m Operating temperature 0 C 50 C Storage temperature ZN SO ose ma Battery 1x 1 5 V LR06 AA Weight according to EPTA Procedure 01 2003 69g 3 The working range can be decreased by unfavourable environmental conditions e g direct sun irradiation Please observe the article number on the type plate of your remote con trol The trade names of individual remote controls may vary For clear identification of your remote control see the serialnumber 26 onthe type plate 1619929 123 1 7 11 compartment Always replace all batteries at the same time Only use batter ies from one brand and with the identical capacity Shut the battery compartment 13 and turn the locking knob 14 to the position In case the batteries have been inserted incorrectly the measuring tool cannot be switched on Insert the batteries with correct polarity gt Remove the batteries from the measuring tool when not using it for extended periods When storing for ex tended periods th
58. 30 4 gt BE DOG HI Bed Los ACT TRE 2 2 31 1619929 J23 1 7 11 OBJ BUCH 1492 001 book Page 30 Friday July 1 2011 12 25 PM gt gt
59. gt Do not use the laser viewing glasses as safety goggles The laser viewing glasses are used for improved visualisa tion of the laser beam but they do not protect against laser radiation gt Donotuse the laser viewing glasses as sun glasses or in traffic The laser viewing glasses do not afford complete UV protection and reduce colour perception gt Have the measuring tool repaired only through quali fied specialists using original spare parts This ensures that the safety of the measuring tool is maintained gt Donot operate the measuring tool in explosive environ ments such as in the presence of flammable liquids gases or dusts Sparks can be created in the measuring tool which may ignite the dust or fumes Keep the laser target plate 37 and the ceiling measurement plate 38 away from cardiac pacemakers The magnets on the laser target plate and on the ceiling measurement plate generate a field that can impair the function of cardiac pace makers gt Keep the laser target plate 37 and the ceiling measure ment plate 38 away from magnetic data medium and magnetically sensitive equipment The effect of the magnets on the laser target plate and on the ceiling meas urement plate can lead to irreversible data loss GRL 250 HV gt The measuring tool is provided with a warning label in English marked with number 17 in the representation of the measuring tool on the graphics page Laser Radiation Clas
60. 1619 929 J23 1 7 11 am wy 4 4 Zi x RO OBJ BUCH 1492 001 book Page 22 Friday July 1 2011 12 25 PM 22 19 5 19 32 10 25 50 0 11 20
61. 9F SPU TH dela AAA BLO EI Eh zim dl rur a alo az ARA 10 25 50 0 ATS AAS Mr wj Jo K x xX T T us ike TO T D Jo NT G ol Jo x lt jo T NEG BEBE PI X o dn Aare WP ne NEL Teuer ER EN N H Wr Ho J KO TH Nr To H4 d T D Nr A OX Ar mm KT du 27 5 7 z Y ul zs ZA AN AIR 39339 zg 23 AZ lt Jo no SU ERD E 1 esu AeA An Ur ol 360 77 32 za No JJ ox W D ol nn is nn o AH al Sr e 1619929423 1 7 11 am SES Bosch Power Tools KH a T Pa X w of 5 m s zu y Wr P e K m X lt o N ay O o ER Es FR om OR Nr lt Ju E o E T pr RW OK NZ ne TZE PF mW gpl o e oln Gei jum 6 m Di dr dr S clo K i ser sb pra m rit amp RE e x ej pa o c bd on E NS o 3 uH I an N of m Ww d TE mo e E H Wm S Me K H g gcc T ow i ae oT wy Te Is w oH 9 de A RT we 5 o Ai I Ayo O I o o ol Ee j mu OF omo Ro dh SAT NN m o m I x Se NN E nh Ser uy m X m dr XR K U w E a jo mou i Akt oe EI Ey w ncm Hel ef ann 3 Ee ei D io p
62. Bosch Power Tools RO am K e Pl RO 4 OBJ_BUCH 1492 001 book Page 17 Friday July 1 2011 12 25 PM Vietnam Robert Bosch Vietnam Co Ltd 10 F 194 Golden Building 473 Dien Bien Phu Street Ward 25 Binh Thanh District 84 Ho Chi Minh City Vietnam Tel 84 8 6258 3690 ext 413 Fax 84 8 6258 3692 hieu lagia vn bosch com www bosch pt com Australia New Zealand and Pacific Islands Robert Bosch Australia Pty Ltd Power Tools Locked Bag 66 Clayton South VIC 3169 Customer Contact Center Inside Australia Phone 61 01300 307 044 Fax 61 01300 307 045 Inside New Zealand Phone 64 0800 543 353 Fax 64 0800 428 570 Outside AU and NZ Phone 61 03 9541 5555 www bosch com au Disposal The rotational laser level remote control batteries accesso ries and packaging should be sorted for environmental friendly recycling Do not dispose of the rotational laser level remote control and batteries into household waste Subject to change without notice
63. d i dat dapes Saa Sa dell eps zoo BSE BHAI BAAD AEST A to A m Eus to gode dl ae RBS TES EA qu n ep d se e side Er t ute ues LE 10 dal AF AIE oke HANS AS del 9 33 Ze AS ALLA da peo ape vb pou rela of Heh BOLE Wat ASU AFA kee at Wow Bosch pico HA ASAH BS FH NIT Tw 8 8 ER e xta Ia uu 320229203494 Robert Bosch Korea Mechanics and Electronics Ltd 9323493 ANE BUA ETF WAS 298 WA Al S 82 31 270 4143 4148 4620 WA 82 31 270 4144 3373323 41S 82 31 270 4680 4681 4682 82 31 270 4686 E Mail Bosch pt hotline kr bosch com Internet www bosch pt co kr ag spa Jo eps JEA AAAA Peg se ag as AA uos aper a YES EHER JA sep d JEA d eel Seen 272 AIA vd e A ARS AH 2 Qo 933 FENG Bosch Power Tools am u RO e ato 43 1619929423 LT 11 4
64. Go lu OBJ BUCH 1492 001 book Page Friday July 1 2011 12 23 PM Robert Bosch GmbH Power Tools Division 70745 Leinfelden Echterdingen Germany www bosch pt com 1619 929 J23 2011 07 T 44 XXX 1619 929 J23 GRL Professional 250 HV 300 HV 300 HVG RC 1 Professional BOSCH en Original instructions ja cn ko 2 am Td BQ SIZ U x OBJ BUCH 1492 001 book Page 2 Friday July 1 2011 12 25 PM 2 1619929 123 1 7 11 Doo EHE eebe Page 8 SE nmm 17 c HET 27 EE H9 am K Bosch Power Tools 4 Ge OBJ BUCH 1492 001 book Page 3 Friday July 1 2011 12 25 PM Bosch Power Tools am Ww GRL 300 HVG Professional 161992923 1 7 11 PN ER 9 Ge CH o CH QA lt e LO CH CO wn wo q N N E gt I d lt O bn e 2m a E Kam Kam P x 2 ne op z N op m E e gt Er WD e EO e nn OBJ_BUCH 1492 001 book Page 5 Friday July 1 2011 12 25 PM
65. dure by 90 On the measuring section of 2 x 20 m 40 m the maximum allowable deviation is 40 mx 0 1 mm m x4 mm 1619929423 LT 11 am wy T U 14 English Consequently the difference d between points I and III for each of the four individual measurements may not exceed 4 mm max Ifthe measuringtool should exceed the maximum deviation in anyone of the four measuring procedures have it checked at a Bosch after sales service agent Working Advice Always use the centre of the laser point for marking The size of the laser point changes with the distance Laser Viewing Glasses Accessory The laser viewing glasses filter out ambient light This en hances the laser visibility for the eye Donotuse the laser viewing glasses as safety goggles The laser viewing glasses are used for improved visualisa tion ofthe laser beam butthey do not protect against laser radiation gt Donotuse the laser viewing glasses as sun glasses or in traffic The laser viewing glasses do not afford complete UV protection and reduce colour perception Working with the Laser Receiver Accessory Under unfavourable light conditions bright environment di rect sunlight and for larger distances use the laser receiver for improved finding of the laser beam 29 When working with the laser receiver select rotational opera tion with the highes
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72. OBJ BUCH 1492 001 book Page 24 Friday July 1 2011 12 25 PM 4 7 3 5 8 15 578 31 BSR 33 5 8 36 15
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74. be carried out across both axes X and Y both positive and negative altogether 4 complete measurements Mountthe measuring tool in the horizontal position onto a tripod 31 accessory or place it on a firm and level surface near wall A Switch the measuring tool on Bosch Power Tools English 13 After levelling direct the laser beam in point operation on to the close wall A Mark the centre point of the laser beam on the wall point I Turnthe measuring tool around by 180 allow itto level in and mark the centre point of the laser beam on the oppo site wall B point II Withoutturning the measuring tool position it close to wall B Switch the measuring tool on and allow it to level in Align the height of the measuring tool using the tripod or by underlaying if required in such a manner that the cen tre point of the laser beam is projected exactly against the previously marked point II on wall B Rotate the measuring tool by 180 without changing the height Allow itto level in and mark the centre point of the laser beam on wall A point III Take care that point III is as vertical as possible above or below point I The difference d of both marked points I and III on wall A amounts to the actual deviation of the measuring tool for the measured axis Repeat the measuring procedure for the other three axes For this turn the measuring tool prior to each measuring proce
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77. 21 3 22 JU HE 22 AAYY JA HS 23 AA BERS sp n MS 24 235 H Alz 25 232 Wil 26 Ja ois 27 Hele AL BA Aas 28 Mae ze Ar 929 9332 33 29 ootd alain 30 252 go se 47 31 424 CS N ES EE ofo E ont e SEN E E oo D ru AN rd gt jJ 25 ua o bo ZS M 2 L yo lr Si Ed gt gt Mo nm m ch a of AA 43 QS 9344129 23 9339 SA Bosch Power Tools am K 4 OBJ BUCH 1492 001 book Page 37 Friday July 1 2011 12 25 PM 4 713 2 sa ael SKI E 9 JA Ho 1 9 9 ARA AA o mg aps Bele agy Professional Sexo 37 d Ach 299 ay GRL 250 HV GRL 300 HV GRL 300 HVG Professional Professional Professional Ar AZ 3 601 K61 60 3 601 K61 50 3 601 K61 70 arg us gea Wo A AA Re ALS F 30m 30m 50m 90179 AAAY sta ALS Al ob 125 m 150 m 150 m daa 4 spe 12 0 1 mm m 0 1 mm m 0 1 mm m APS WHS AS Bat 8 t5 8 5 8 5 eu Art at 5s 15s 15s Sp Seu 150 300 600 rpm 150 300 600 rpm 150 300 600 rpm al AS le SE 10 25 50 10 25 50 10 25 50 25 ex 10 50 C 10 50 C 0 40 C HSV 20 70 C 20 70 C 20 70 C 8d s AU 90 90 90 doa Ser 2 3R 3R eel n a 635 nm lt 1 mW 635 nm lt 5 mW 532 nm lt 5 mW rre Bo apy 3 5 mm 5 mm 5 mm Fa AA 5 3 438 5 8 11 5
78. 25 22 Fax 62 21 46 82 86 45 68 23 E Mail sales multimayaka co id www bosch pt co id 1619929 J23 1 7 11 Philippines Robert Bosch Inc 28th Floor Fort Legend Towers 3rd Avenue corner 31st Street Fort Bonifacio Global City 1634 Taguig City Philippines Tel 63 2 870 3871 Fax 63 2 8703870 matheus contiero ph bosch com www bosch pt com ph Bosch Service Center 9725 27 Kamagong Street San Antonio Village Makati City Philippines Tel 63 2 899 9091 Fax 63 2 897 6432 rosalie dagdagan ph bosch com Malaysia Robert Bosch S E A Pte Ltd No 8A Jalan 13 6 G P O Box 10818 46200 Petaling Jaya Selangor Malaysia Tel 60 3 7966 3194 Fax 60 3 7958 3838 cheehoe on my bosch com Toll Free 1800 880 188 www bosch pt com my Thailand Robert Bosch Ltd Liberty Square Building No 287 11 Floor Silom Road Bangrak Bangkok 10500 Tel 66 2 631 18 79 18 88 10 lines Fax 66 2 2 38 47 83 Robert Bosch Ltd P O Box 2054 Bangkok 10501 Thailand Bosch Service Training Centre 2869 2869 1 Soi Ban Kluay Rama IV Road near old Paknam Railway Prakanong District 10110 Bangkok Thailand Tel 66 2 6 71 7800 4 Fax 66 2 2 49 42 96 Fax 66 2 2 49 52 99 Singapore Robert Bosch SEA Pte Ltd 11 Bishan Street 21 Singapore 5 3943 Tel 65 6571 2772 Fax 65 6350 5315 leongheng leow sg bosch com Toll Free 1800 333 8333 www bosch pt com sg
79. 3R 3R 635 nm lt 1 mW 635 nm lt 5 mW 532 nm lt 5 mW 5 mm 5 mm 5 mm 5 8 11 5 8 11 5 8 11 1 20 G 2 16 Bosch Power Tools am wy 1619929423 1 7 11 WZ ID d x 20 Professional OBJ BUCH 1492 001 book Page 20 Friday July 1 2011 12 25 PM GRL 250 HV 2x tow ER20 D GRL 300 HVG Professional 2 x 1 5 V LR20 D GRL 300 HV Professional 2x 1 5 V LR20 D 60 50 30 EPTA Procedure 01 2003 1 8 kg 1 8 kg 1 8 kg RS x x BS 190 x 180 x 170 mm 190 x 180 x 170 mm 190 x 180 x 170 mm IP 54 IP 54 IP 54 1 20 C 2
80. A 1 29237499 392389 292 J s jj HIFI du 3992 1012 zu 29 SAHA 24902 Va lel zt dor os SA 2434 GRL 250 HV o 34 49 339x3299 539949053252 33 FSR VY 433 2939 917 SZ 82 31 HAY ASL 32 SSVI le EA v Jo Z22 Jou Sho Solch wx i IEC 60825 1 2007 03 lt 1mW 635 nm Bosch Power Tools HII s 9 SAVED Bao 37 35 gt AS ALB Do 3 SAAS BINED AAAS 3 IILAN 39s gt del 2 H 9 SSa best SESS 823907 w 99x 594 gd AAL 09 SR TE IEC 60825 1 73 4 2 A edel d e 41 1 FIT o g els 912 4 E219 zm Of HO A a eu gt HY 39333220 2x 2 83 VES BHA 2 272 OHSAS es Age HIN Sm He GRL 300 HV GRL 300 HVG gt 2323737 x QA 23 1 333 944332339 32999 4339 259 393 17 3 18 X GRL 300 HV del ut epa spa supe aJo du Sa 3R IEC 60825 1 2007 03 5 mW 635 nm GRL 300 HVG zo 2 wl AJA SE SR IEC 60825 1 2007 03 lt 5 mW 532 nm GRL 300 HV GRL 300 HVG AA WARE war gt 232232 Ao 39 A 29374933229 SoA 225 x 3592 33 99 333944 g o 9 Ab RO 4 SSd stet PES 8b BY Y 99x 97 gd M 9 o FRI TE IEC 60825 1 TA zl o 4 Sa 3R el AFFE ao m fw dall eee ag Sait gu a AJANHE xe 4A zc Gude H9 453 9923 FEIN NY 37 GES 32 2 Er BAS gepqueszeoes ie Ja 2 eu v v 1619929423 LT 11 am K 4 4 SIZ U OB
81. J BUCH 1492 001 book Page 36 Friday July 1 2011 12 25 PM 36 e gt SPSS VEN 3222235958297 AL gek gue EN 60825 1 o HEN ES zo 4 tes s o u x amp zQ2 oy YAS o 287 Hah Blo Al TAFRSEH SET BLOF SUT gt 94 399 TEN 9918 e BEE x YO ES 2 REFE VAHL 247 sp3 ol EIIJE AS eure edu gt ASA 3 BAUS 24 83 SVSFS ASHE Jus AHAL LRA 9 zre xp xta gib SEKR EEGENEN 49342339 gx Ae 24 YA 2 SST S 7 e AALS OS APES GAA S USEF SHIRT we 4399435937 2 FAAL jou euer SECH DE DL v v v 33 3 deii 44923 34 AL AAA BS S t HAS ATI zt A QE Abst Ho 427 Je ug I 4934 th BE 99493212 499 92 349 Vs o Ag dus A was Arse 39999 2212 42 39 Dags a laud H HY HA SL IV No SPAY VES dad 929844837 oH 9 dza dona FAA AIE Bo YA alee v rr alo AS 2 4x FAY BEARS JAN SATTE 388 DEG EE AG 712A B AAS AALS HoE A APS SOF BUCH zdg7zegse sep sc ABER 2 23 JAS AJAJIA JA AJA AAS 2S Eq Aea SFU CH ASI FR BA 1619929 123 1 7 11 3 a o 3 314 1 64 231 47 2 64 A HE 3 axe dug TEST ENT 4 spa uel AA AA HE 5 s ge gar Sol 6 79 aequ 7 eX X PA AZ 8 jo WAT 9 dau 10 3A qe 12353222 29 48 WE 12 za Ae SA 13 Malz Ale 14 lo ol He 15 494 AA 4 5 8 16 3 907 AAA aue 17 AoA 3x 18 2 AR ALT 2 3 58 GRL 300 HV GRL 300 HVG 223 19 e zs 9 39278 22 SER JE 20 JzA Verte S Ao AR HE
82. RA Y re ll I Reg TO N uy Fe 1 WX Ow ow man Wo E I 9 dr ia N rr ny jo mA T wo F Ko C IK Mo om Ho m I us Gi p lt iP W d a x m Ro un Ro GE m o SH 3 B bm ow ego da X P Wr Me wr A x wes Roar EF wr F Ss lt lt f ee Rhee r m E Ad eb o Fe Bo ugi wo W E Tb a p e KO o mM Farm gt mn Wow Wr OS wo Dm lt i o lt a ol E JOO RK CN A OS N zo zE S438 Esk ae T4 99 Oe KES ann Be e dug ef s Wa dr a 2a Mg EPR e oh x Uu gt gt XO n gt d T Wo In em sr 59 Si Mo o nm ew e Ra ES pm p ol g e ENK o HJ 2 m Wo JH un Se Or To e wie War ER ur WE amp y M NR Le gt NNN Tg A A NF ae E SR Op omi Dm GS o mA N ch or O lt nn I die H gT Sg E a me H mak Sr o RO XO H m no a EUR Rew RT D ae Rr xao Ww yo x s KH R yo Ne ef HE cx De Ro a KC G O Ju T No 0 No X oj m Wo 5j xH np Y gt Ro EN Sen zo X T y ch p HO q prot de oe TL O ft WW D a d m Ro H wow m oes w ER 9 9 9 Mo Nr IN Ta dr mo Tj nn ch NF Q di Bu on a 7 3 NF v GT SrH a KE eg Tog aX T ur 3 HT er Wi be FR qu ay ee So se wa w i qo RE IR EE mgl a tansy eet an ai Ei A dro 25 o pps zu gn JJ IH aR 1H u N lt Hi oi lt J mo ar wow 9 T om E Enc IM a e Ed debeam FAND au xe ey lh Ee ay np 1 RI Ga Hou ey H w 9 o Io lt Fo wr ox ne zs pm a O Jlo TO o AA x n Er CE oF H o HA cl
83. arge variations in temperature allow the remote control to ad just to the ambient temperature before putting it into oper ation The remote control remains ready for operation as long as a battery with sufficient voltage is inserted Set up the measuring tool in such a manner that the signals of the remote control can directly reach one of the reception lenses 7 When the remote control cannot be pointed directly against a reception lens the working range is reduced By re flecting the signal e g against walls the working range can be improved even for indirect signals After pressing a button on the remote control the illuminated operation indicator 24 indicates that a signal was sent out Switching the measuring tool on off with the remote control is not possible 1619929423 LT 11 am nr 4 4 U x OBJ BUCH 1492 001 book Page 12 Friday July 1 2011 12 25 PM 12 English Operating Modes of the Rotational Laser Level Overview All three operating modes are possible with the measuring tool in horizontal and vertical position P Rotational Operation d cow Rotational operation is especially recom AS mended when using the laser receiver You can select between different rota tional speeds em o Line Operation In this operation mode the variable laser beam moves within a limited aperture an gle This increases
84. be tween the laser beam and the height at the reference point with the laser target plate 37 Project or check the measured height difference at the target location Parallel Alignment of a Plumb Beam Projecting Right Angles see figure D When right angles are to be projected or when partitions are to be aligned the plumb beam 9 must be aligned parallel meaning at the same distance to a reference line e g a wall For this set up the measuring tool in the vertical position and position it in such a manner that the plumb beam runs approx imately parallel to the reference line For exact positioning measure the clearance between plumb beam and reference line directly on the measuring tool with help of the laser target plate 37 Measure the clearance be tween plumb beam and reference line again as far away as possible from the measuring tool Align the plumb beam in such a manner that it has the same clearance to the reference line as when measured directly at the measuring tool The right angle to the plumb beam 9 is indicated by the varia ble laser beam 6 Indicating a Plumb Line Vertical Plane see figure E Toindicate a plumb line or a vertical plane set up the measur ing tool inthe vertical position When the vertical plane is sup posed to run at a right angle to a reference line e g a wall then align the plumb beam 9 with this reference line The plumb line is indicated by the variable laser beam 6 O
85. e batteries can corrode and discharge themselves Bosch Power Tools am wy 4 U OBJ BUCH 1492 001 book Page 11 Friday July 1 2011 12 25 PM Charge control Indicator When the charge control indicator 12 flashes red for the first time the measuring tool can still be operated for approx 2 h When the charge control indicator 12 lights up red continu ously measurements are no longer possible The measuring tool switches off automatically after 1 minute Power Supply of the Remote Control Using alkali manganese batteries is recommended for opera tion of the remote control To open the battery lid 28 press the latch 27 in the direction ofthe arrow and remove the battery lid Insert the battery pro vided When inserting pay attention to the correct polarity according to the representation on the inside of the battery compartment Remove the battery from the remote control when not using it for longer periods When storing for longer peri ods the battery can corrode and discharge itself Operation Starting Operation of the Rotational Laser Level gt Protect the measuring tool against moisture and direct sun light gt Do not subject the measuring tool to extreme tempera tures or variations in temperature As an example do not leave it in vehicles for longer periods In case of large varia tions in temperature allow the measuring tool to adju
86. er Tools am Ww e e OBJ BUCH 1492 001 book Page 27 Friday July 1 2011 12 25 PM MX gt EHIE v v v v
87. erial number of the rotational laser level 17 Laser warning label 18 Warning label laser radiation exit opening GRL 300 HV GRL 300 HVG Remote control 19 Button on the remote control for rotation operation and selection of rotational speed 20 Button on the remote control for line operation and se lection of line length 21 Shock warning reset button 22 Button for rotation in clockwise direction 23 Button for rotation in anticlockwise direction 24 Operation indicator 25 Outlet opening for infra red beam 26 Serial number 27 Latch of battery lid 28 Battery lid ol oon O Accessories Spare parts 29 Laser receiver 30 Construction laser measuring rod 31 Tripod 32 Laser viewing glasses 33 Wall mount alignment unit 34 Fastening screw of the wall mount 35 Screw of the alignment unit 36 5 8 screw on wall mount 37 Laser target plate 38 Ceiling measurement plate 39 Case The accessories illustrated or described are not included as standard delivery 1619929423 LT 11 am nr 4 4 lt as d OBJ BUCH 1492 001 book Page 10 10 English Technical Data Friday July 1 2011 12 25 PM Rotational Laser Level GRL 250 HV GRL 300 HV GRL 300 HVG Professional Professional Professional Article number 3 601 K61 60 3 601 K61 50 3601K61 70 Working range
88. fastening screw 34 to a lath width maximal 8 mm or hang it up with two hooks 1619929 123 1 7 11 OBJ BUCH 1492 001 book Page 14 Friday July 1 2011 12 25 PM Mounting on a tripod The wall mount 33 can also be screwed onto atripod with the tripod mount on the back side This meth od of fastening is especially recommended for work where the rotational plane is to be aligned with a reference line With the alignment unit the mounted measuring tool can be moved vertically when mounted to the wall or horizontally when mounted to a tripod within a range of approx 16 cm For this loosen screw 35 on the alignment unit move the measuring tool to the desired position and retighten screw 35 again Working with the Ceiling Measurement Plate see figure B As an example the ceiling measurement plate 38 can be used for easy height adjustment of drop ceilings Fasten the ceiling measurement plate with the magnetic holder e g to a beam The reflecting half of the ceiling measurement plate improves the visibility of the laser beam in unfavourable conditions the laser beam can also be seen from the rear side through the transparent half Working with the Laser Target Plate Accessory see figure C With the laser target plate 37 the laser mark can be projected on the ground floor or against a wall With the magnetic hold er the laser target plate can also be fastened to ceiling con structions With the zero field and t
89. he scale the offset or drop to the re quired height can be measured and projected at another loca tion This eliminates the necessity of precisely adjusting the measuring tool to the height to be projected The laser target plate 37 has a reflecting coating which im proves the visibility of the laser beam from a larger distance or in case of strong sun rays The luminosity can be recognized only if you look to the laser target plate in parallel to the laser beam Working with the Measuring Rod Accessory see figure J For checking irregularities or projecting gradients itis recom mended to use the measuring rod 30 together with the laser receiver A relative millimeter scale 50 cm is marked on the top of the measuring rod 30 Its zero height can be preset atthe bot tom of the elevator column This allows for direct reading of deviations from the specified height Bosch Power Tools am 4 4 3m as d OBJ BUCH 1492 001 book Page 15 Friday July 1 2011 12 25 PM Work Examples Projecting Checking Heights see figure C Position the measuring tool in the horizontal position onto a firm support or mount it onto a tripod 31 accessory Working with tripod Align the laser beam to the requested height Project or check the height at the target location Working without tripod Determine the height difference
90. ic levelling During the lev elling the levelling indicator 3 lights up green and the laser flashes in point operation The measuring tool is levelled in as soon as levelling indicator 3 lights up green continuously and the laser beam is steady After the levelling is completed the measuring tool automati cally starts in rotational operation With the operating mode buttons 5 and 11 the operating modes can already be specified during levelling in see Oper ating Modes of the Rotational Laser Level page 12 In this case the measuring tool starts in the set operating mode up on completion of levelling in To switch off the measuring tool press the On Off button 4 again gt Do not leave the switched on measuring tool unattend ed and switch the measuring tool off after use Other persons could be blinded by the laser beam To save the batteries the measuring tool is automatically switched off when not within the self levelling range for more than 2 h or when the shock warning is actuated for more than 2 h see Automatic Levelling of the Rotational Laser Level page 12 Reposition the measuring tool and switch it on again Starting Operation of the Remote Control gt Protect the remote control against moisture and direct sunlight gt Do not subject the remote control to extreme tempera tures or variations in temperature As an example do not leave it in vehicles for longer periods In case of l
91. laser receiver should always be used when working out doors When working on unstable ground mount the measuring tool onto the tripod 31 Activate the shock warning function in or derto avoid faulty measurements in case of ground vibrations or shock to the measuring tool G 2 Be nN G Switching on the measuring tool 1 s self check e e Levelling in or re levelling 2x s Q 2x s Measuring tool levelled in ready for operation e e e Self levelling range exceeded 2x s Q Shock warning function activated e Shock warning actuated 2x s Q 2x s Battery voltage for lt 2 h operation 2x s Battery empty O O e for line and rotational operation 2x s Flashing frequency twice per second e Continuous operation OH Function stopped Bosch Power Tools 1619 929 J23 1 7 11 x 4 Zi OBJ BUCH 1492 001 book Page 16 Friday July 1 2011 12 25 PM 16 English Maintenance and Service Maintenance and Cleaning Keep the rotational laser level and remote control clean at all times Do not immerse the rotational laser level and remote control into water or other fluids Wipe off debris using a moist and soft cloth Do not use any cleaning agents or solvents Particularly clean the surfaces at the outlet opening of the ro tational laser level regularly and pay attention for any lint If the rotational laser level or remote cont
92. ly 1 2011 12 25 PM 4 32 EHER 31 Ao FESR Bilt A SED Ar ha A 1 B 180 lt II 180 TE Mae HERI ha B CAD B A x B H E B I 1619929 J23 1 7 11 180 A AD II I SHA EAI ADS HI d 90 FE 2x20 40
93. miliar with the handling of laser devices According to EN 60825 1 this includes among other things the knowledge about the biological effects of the laser to the eyes and the skin as well as the correct usage of laser protection devices in order to avoid dangers Alwaysset up the measuring tool in such a manner that the laser beams run far above or below eye level This ensures that damage to the eyes will not occur Bosch Power Tools am K 4 4 U OBJ BUCH 1492 001 book Page 9 Friday July 1 2011 12 25 PM gt Mark the area in which the measuring tool is being used with suitable laser warning labels This prevents per sons not involved from accessing the danger area gt Do not store the measuring tool at locations to which unauthorised persons have access Persons not familiar with the operation of the measuring tool can cause harm to themselves and to others When using a class 3R measuring tool observe possi ble national regulations Non observance of these regu lations can lead to injury Make sure that the area of laser radiation is monitored or shielded The limitation of laser radiation to controlled areas prevents eye damage to persons not involved Remote control Read and observe all instructions SAVE THESE INSTRUCTIONS FOR FUTURE REFER ENCE Have the remote control repaired only through a quali fiedrepai
94. nw dus Uu Poe m X ME xo mea lt w ER da E w F Jo o J od AT K lt WI o J xO o Ha loy mmu MERCED y K op hw o D Ton Sm BA d n ojo N du X lt J WU pr m WP X o x Eu uu de cB oe3 Bo m o cw 9H Pe So op xe OX B 9 S TE a Tu mo OA 4 lt OX x m o e o 9 m m 9 e N ut preety nn soba E etz ax lt ara p kU HET ees HERA e Au Hl bs cw lt wr X nun JJ KO u T MH S Hj S d JU 5 o d gt pr oi oh Hi Nb uu KIT P mo oo T T X TE jo EC ou SE ch Mm xo JJ x H c r lt I dek e eRe e a GE H nom mu o Km PK wm SN wx nn 1 sg sai fe ge me NT Ad D p Re V m dU e o woo Hop EE dag x u lt y HM Ko K E CNET oJ mno F w am S EE wow VOCE De PAD CR lt 5 m op oo d mu o E uH eem a 4p ox OX x Gs J Kh e E o mp q CP uo Da H np Se dp pm cu mos D a ER nj ojo RO oJ Ho x x ME B TMI rr o 5 Eh X 23 Y m Fo tom BS T P Bu a e a oq Mb n pa ery v PT N a LIA i oa ein ef ow Cc Eu m e Tu TO TE FERM wi a vi un o 7L N t uy K D SF at X TO gy wg o Pw DON Se gt m ap NO PZ m of m lt d o yy ar mn T Am X T 40 pom Eiz Te OR pod e r SmE FT gy E EE Da ERETT F We A e d gl 5 ge To gt my me oS er JJ qo is oF m zw TJ lt TH Hn of m Ko mw n TO Fe TEZON XBRE 4 ex p ESTIS T ESS basa Hg h Na I SE Si RI qo lt sr E e wo To Q gt aa ai Pm s
95. r person and only using identical replacement parts This will ensure that the functionality of the remote control is maintained Do notoperate the remote control in explosive atmos pheres such as in the presence of flammable liquids gases or dusts Sparks can be created in the remote con trol which may ignite the dust or fumes Product Description and Specifications Intended Use Rotational Laser Level The measuring tool is intended for determining and checking precise horizontal partitions vertical lines building lines and plumb points The measuring tool is suitable for indoor and outdoor use Remote control The remote control is intended for controlling rotational laser levels in indoor and outdoor use Product Features The numbering of the product features refers to the illustra tion of the rotational laser level and remote control on the graphics page Rotational Laser Level 1 Shock warning indicator 2 Shock warning button 3 Automatic levelling indicator Bosch Power Tools English 9 IA On Off button of the rotational laser level Button for rotational operation and selection of the rotation speed Variable laser beam Reception lens for remote control Exit opening for laser beam Plumb beam 10 Rotation head 11 Button for line operation and line length selection 12 Charge control indicator 13 Battery compartment 14 Locking knob of the battery compartment 15 Tripod mount 5 8 16 S
96. radius without laser receiver approx 30m 30m 50m with laser receiver approx 125m 150 m 150 m Levelling accuracy 1 2 0 1 mm m 0 1 mm m 0 1 mm m Self levelling range typically 8 5 8 5 8 5 Levelling duration typically 15s 15s 15s Rotational speed 150 300 600 min 150 300 600 mint 150 300 600 min Aperture angle for line operation 10 25 50 10 25 50 10 25 50 Operating temperature 0 OC T0 50 C 0 440 C Storage temperature ZU a ae 20 TO O xU 7 2G Relative air humidity max 90 90 90 Laser class 2 3R 3R Laser type 635 nm lt 1mW 635 nm 5 mW 532 nm 5 mW Laser beam at the exit opening approx P 5mm 5mm 5mm Tripod mount horizontal 5 8 11 5 8 11 5 8 11 Batteries alkali manganese 2x 15 VER20 D 2x 1 5 V LR20 D 2x 1 5 VLR20 D Operating life time approx 60h 50h 30h Weight according to EPTA Procedure 01 2003 1 8 kg 1 8 kg 1 8 kg Dimensions length x width x height 190x 180x170 mm 190 x 180x170 mm 190 x 180x170 mm Degree of protection IP 54 dust and splash IP 54 dust and splash IP 54 dust and splash water protected water protected water protected 1 at 20 C 2 alongside the axes Please observe the article number on the type plate of your rotational laser level The trade names of individual rotational laser levels may vary For clear identification of your rotational laser level see the serial number 16 on the type plate Remote control RC 1
97. rol should fail de spite the care taken in manufacture and testing repair should be carried out by an authorised customer services agent for Bosch power tools Do not open the rotational laser level and the remote control yourself In all correspondence and spare parts orders please always include the 10 digit article number given on the type plate of the rotational laser level and remote control After sales Service and Customer Assistance Our after sales service responds to your questions concern ing maintenance and repair of your product as well as spare parts Exploded views and information on spare parts can also be found under www bosch pt com Our customer service representatives can answer your ques tions concerning possible applications and adjustment of products and accessories People s Republic of China China Mainland Bosch Power Tools China Co Ltd 567 Bin Kang Road Bin Jiang District 310052 Hangzhou PR China Service Hotline 400 826 8484 Fax 86 571 8777 4502 E Mail contact ptcn cn bosch com www bosch pt com cn HK and Macau Special Administrative Regions Robert Bosch Hong Kong Co Ltd 21st Floor 625 King s Road North Point Hong Kong Customer Service Hotline 852 21 02 02 35 Fax 852 25 90 97 62 E Mail info hk bosch com www bosch pt com hk Indonesia PT Multi Mayaka Kawasan Industri Pulogadung Jalan Rawa Gelam lll No 2 Jakarta 13930 Indonesia Tel 62 21 46 83
98. s 2 donot stare into beam IEC 60825 1 2007 03 lt 1mW 635 nm 1619929 123 1 7 11 gt Do not direct the laser beam at persons or animals and do not stare into the laser beam yourself This measur ing tool produces laser class 2 laser radiation according to IEC 60825 1 This can lead to persons being blinded gt Do not allow children to use the laser measuring tool without supervision They could unintentionally blind other persons or themselves GRL 300 HV GRL 300 HVG gt The measuring tool is provided with two warning labels in English marked with number 17 and 18 in the repre sentation of the measuring tool on the graphics page GRL 300 HV LASER RADIATION Avoid direct eye exposure Class 3R laser product IEC 60825 1 2007 03 lt 5 mW 635 nm GRL 300 HVG LASER RADIATION Avoid direct eye exposure Class 3R laser product IEC 60825 1 2007 03 lt 5 mW 532 nm GRL 300 HV GRL 300 HVG LASER APERTURE gt Do not direct the laser beam at persons or animals and do not look into the laser beam yourself This measuring tool generates laser radiation from class 3R according to IEC 60825 1 Looking directly into the laser beam even from a greater distance cause damages to the eyes p Avoid reflection of the laser beam on smooth surfaces such as windows or mirrors reflected laser beam can also cause damage to the eye The measuring tool should be operated only by persons that are fa
99. s increased with each step When pressing the line operation button a third time the measuring tool switches to point op eration after brief post pulsation Pressing the line operation button again takes you back to line operation with the small est aperture angle Note Due to inertia itis possible for the laser to slightly move beyond the end point of the laser line 1619929 123 1 7 11 Rotating the Laser Line Laser Dot or the Alp Rotational Plane see figure A When the measuring tool is in the horizontal position the laser line in line operation or the laser dot in point opera tion can be positioned within the rotational plane of the laser Rotation is possible by 360 For this manually turn the rotation head 10 to the desired position or use the remote control Press button 22 to rotate in clockwise direction and button 23 on the remote control to rotate in anticlockwise direction In rotational operation pressing the buttons has no effect When the measuring tool is in the vertical position it is pos sible to rotate the laser point laser line or rotational plane around the vertical axis Rotating is possible only within the self levelling range 5 leftwards or rightwards and only with the remote control Press button 22 on the remote control to rotate in clockwise direction and button 23 on the remote control to rotate in an ticlockwise direction Automatic Levelling of the Rotational Laser Level Overvie
100. st to the ambient temperature before putting it into operation In case of extreme temperatures or variations in temperature the accuracy of the measuring tool can be impaired gt Avoid heavy impact to or dropping down of the measur ing tool After severe exterior effects to the measuring tool it is recommended to carry out an accuracy check see Levelling Accuracy of the Rotational Laser Level page 13 each time before continuing to work Setting Up the Measuring Tool Horizontal position Vertical position Set up the measuring tool on asturdy surface in the horizontal or vertical position mount it on a tripod 31 or to the wall mount with alignment unit 33 Due to the high levelling accuracy the measuring tool reacts sensitively to ground vibrations and position changes There fore pay attention that the position of the measuring tool is sta ble in order to avoid operational interruptions due to re level ling Bosch Power Tools English 11 Switching On and Off gt Do not direct the laser beam at persons or animals es pecially notat their eye level and do not stare into the laser beam yourself not even from a distance Imme diately after switching on the measuring tool sends out the vertical plumb beam 9 and the variable laser beam 6 For switching on the measuring tool press the On Off button 4 The indicators 1 3 and 12 light up briefly The measuring tool immediately starts the automat
101. t rotational speed Before working with the laser receiver read and observe the laser receiver operating instructions Working with the Remote Control While pressing the operator buttons the measuring tool can be brought out of alignment so that the rotation is briefly stopped This effect is avoided when using the remote control Reception lenses 7 for the remote control are located on three sides of the measuring tool among other locations above the control panel on the front side Working with the Tripod Accessory The measuring tool is equipped with a 5 8 tripod mount for horizontal operation on a tripod Place the measuring tool via the tripod mount 15 onto the 5 8 male thread of the tripod and screw the locking screw of the tripod tight Ona tripod 31 with a measuring scale on the elevator column the height difference can be adjusted directly Working with Wall Mount Alignment Unit Accessory see figure B You can also mount the measuring tool to the wall mount with alignment unit 33 For this screw the 5 8 screw 36 of the wall mount into the tripod mount 15 of the measuring tool Mounting to a wall Mounting to a wall is recommended e g for work above the elevation height of tripods or for work on unstable surfaces and without tripod For this fasten the wall mount 33 with the measuring tool mounted as vertical as possible to a wall For mounting to the wall you can either fasten the wall mount 33 with
102. the visibility of the la ser beam in comparison to rotational op eration You can select between different aperture angles Point Operation This operation mode enables the best vis ibility of the variable laser beam As an ex ample it is used for easy projecting of heights or checking building lines Rotational Operation 150 300 600 min Each time after switching on the measuring tool is in rotation al operation mode with average rotational speed To switch from line operation to rotational operation press the rotational operation button 5 or button 19 on the remote con trol Rotational operation starts with average rotational speed To change the rotational speed press the rotational operation button 5 or button 19 again until the requested speed is reached When working with the laser receiver the highest rotational speed should be set When working without laser receiver re duce the rotational speed for improved visibility of the laser beam and use the laser viewing glasses 32 Line Operation Point Operation 10 25 50 0 To switch to line or point operation press the line operation button 11 or button 20 on the remote control The measuring tool switches to line operation with the smallest aperture angle To change the aperture angle press the line operation button 11 or button 20 on the remote control The aperture angle is increased in two steps at the same time the rotational speed i
103. verview of Indications 4 English 15 Turning the Rotational Plane when in the Vertical Position see figure F Toalign the vertical laser line or the rotational plane against a reference point on a wall set up the measuring tool in the ver tical position and roughly align the laser line or the rotational plane with the reference point For precise alignment with the reference point press button 22 clockwise rotation or but ton 23 on the remote control anticlockwise rotation Working without Laser Receiver see figure G Under favourable light conditions dark environment and for short distances itis possible to work without the laser receiv er For better visibility of the laser beam either select line op eration or select point operation and manually rotate the ro tation head 10 to the target location Working with the Laser Receiver see figure H Under unfavourable light conditions bright environment directsunlight and for larger distances use the laser receiver for improved finding of the laser beam When working with the laser receiver select rotational operation with the highest rotational speed Measuring Over Long Distances see figure I When measuring over long distances the laser receiver must be used to find the laser beam In order to reduce interfer ences the measuring tool should always be set up in the cen tre of the work surface and on a tripod Working Outdoors see figure J The
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105. w After switching on the measuring tool automatically detects the horizontal or vertical position To change between the horizontal and vertical position switch the measuring tool off reposition it and switch on again After switching on the measuring tool checks the horizontal and vertical position and automatically levels out any uneven ness within the self levelling range of approx 8 96 5 When the measuring tool is inclined by more than 8 96 after switching on or after a position change levelling in is no long er possible In this case the rotor is stopped the laser flashes and levelling indicator 3 continuously lights up red Reposi tion the measuring tool and wait for it to re level Without re positioning the laser is automatically switched off after 2 minutes and the measuring tool after 2 hours When the measuring tool is levelled in it continuously checks the horizontal and vertical position Automatic re levelling takes place after position changes To avoid faulty measure ments the rotor stops during the levelling process the laser flashes and the levelling indicator 3 flashes green Shock warning Function The measuring tool has a shock warning function after posi tion changes or shock to the measuring tool or in case of ground vibrations it keeps the measuring tool from levelling in at changed heights and thus prevents vertical errors To switch on the shock warning function press the shock
106. warning button 2 The shock warning indicator 1 continuous ly lights up green and the shock warning function is activated after 30 seconds When the levelling accuracy range is exceeded after a posi tion change of the measuring tool or when heavy ground vi brations are detected the shock warning function is actuat ed The rotation is stopped the laser flashes the levelling indicator 3 goes out and the shock warning indicator 1 flash es red The current operating mode is stored Bosch Power Tools am 4 4 Zs OBJ BUCH 1492 001 book Page 13 Friday July 1 2011 12 25 PM After the shock warning has actuated press the shock warn ing button 2 on the measuring tool or the shock warning reset button 21 on the remote control The shock warning function is restarted and the measuring tool starts the levelling As soon as the measuring tool is levelled in levelling indicator 3 continuously lights up green it starts in the stored operating mode Now check the height of the laser beam with a refer ence point and correct the height if required When after the shock warning function has actuated the function is not restarted by pressing button 2 on the measur ing tool or the shock warning reset button 21 on the remote control the laser is automatically switched off after 2 minutes and the measuring tool after 2 hours To s
107. witch off the shock warning function press shock warn ing button 2 once or when the shock warning is actuated shock warning indicator 1 flashing red press it twice When the shock warning function is shut off the shock warning in dicator 1 goes out The shock warning function cannot be switched on or off with the remote control it can only be restarted after having actu ated Levelling Accuracy of the Rotational Laser Level Influences on Accuracy The ambient temperature has the greatest influence Espe cially temperature differences occurring from the ground up ward can divert the laser beam The deviations play a role in excess of approx 20 m measur ing distance and can easily reach two to four times the devia tion at 100 m Because the largest difference in temperature layers is close to the ground the measuring tool should always be mounted on a tripod when measuring distances exceeding 20 m If possible also set up the measuring tool in the centre of the work area Accuracy Check of the Measuring Tool Apart from exterior influences device specific influences such as heavy impact or falling down can lead to deviations Therefore check the accuracy of the measuring tool each time before starting your work For the accuracy check an unobstructed measuring distance of 20 mon firm ground between two walls A and B is required With the measuring tool in the horizontal position a transit measurementis to
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