English dropdown-ico

Celestron 82291 manual

1
2
3
4
5
6
7
8
9
10
11

Go to page of

Similar user manuals

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Celestron 82291, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Celestron 82291 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Celestron 82291. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Celestron 82291 should contain:
- informations concerning technical data of Celestron 82291
- name of the manufacturer and a year of construction of the Celestron 82291 item
- rules of operation, control and maintenance of the Celestron 82291 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Celestron 82291 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Celestron 82291, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Celestron service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Celestron 82291.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Celestron 82291 item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    A dj ustment (Collimat ion) of Ne w t on ian- and SC-T elescopes with the help o f the LA SE R-COLLI TM by Baader P lanet arium Instruction Manual  2005 by Baade r Planetariu m Gmb H B A A DER PL A NETA RIUM Zu r St er n w ar t e • 82291 Mam m en d o r f • Tel .08145/88 02 • Fax 0814 5/880 5 w w w .b aad er _p l an et ar i um .de • s er [...]

  • Page 2

    2 Adjustm ent of N ewtonian Telesc opes wit h th e Laser-C olli ™ by Baader Pl anet arium Caution: LA SE R ! Never ever look directly i n to a las e r beam ! Prot ect your eyes ! ! Store the Laser-Colli ™ care f ully so th at it c annot be reac hed by children or inexperien ced adults . Consider that a heavily M iss-aligned telesc ope will de f[...]

  • Page 3

    3 Loss of collimati on is an important fa ctor t o b e aware of with te lesco p es of any design if per f o rm- anc e ‘ fa lls off ’ at any time. A r efractor ’ s eyepiece t ilt e d within its e yepiec e hold e r will show t he s ame low quality bl urred i m- ages. This holds t ru e with all o ther mirr or te l e scope syst ems like the popul[...]

  • Page 4

    4 Of course , the Laser - Colli ™ f unctions relia bly only i f the l aser beam it- self leaves its own hous- ing in an a bsolutely cen- tered position. Therefore the laser s ource is symm etrically adjus t- able in the housing around its rotational axis, w hich has been car efu lly ad- justed on a mech anical lathe b y u s prior to ship- ping - [...]

  • Page 5

    5 On Left : Clear, transl ucent Referenc e plane with etched cros s-marks M ost lase r colli mating devices us e a sim- ple opaque piece of plate glass to act as indicator for the r etu r n ing laser b eam. M any sma ll suppliers j u st scratc h the glass by using sand p aper in order t o get a cheap opaque re fe rence pla ne. Our Clear Refere nce [...]

  • Page 6

    6 Read your telescope ins truction man ual f or the correct p r o cedur e to remove the mai n mirror cell. M ost manuals contain this i n the maintena nce part ” Cleanin g The Main Mir ror ” . Nearly all designs hold the m a in mirror cell in the t ube by t hree screws. Yo u will find them near the r ear e nd of t h e tube s pread 120 ° apa rt[...]

  • Page 7

    7 Pic tur e 2 below s hows first success: The l a ser ’ s light dot is correctly centere d within the marker ci rcle. M ost t elescope constr uctions a djust the secondary mirror by th re e lo aded screws like those (a lle n hea d scr e ws) shown here in the picture. In o ther wor d s: Turn o ne screw slowly clockwise and t h e secondary mirror i[...]

  • Page 8

    8 In th e lower s ket c h t he left sid e screw is t h readed into the mi rror support plate and wil l pull th at side d own, the right hand scr ew has it ’ s thread cut into t he bottom pla te and would li f t t he mirror up. The spring loaded mirror support is easier to ma nufacture and to work wit h. On the other hand the resilience of the spr[...]

  • Page 9

    9 Having the re flected las er beam s ho wi n g sa f ely on the grid plan e you can f inis h the collimation process quickly. Tilt the main mir ror with the help o f the adjustment screws until the l aser b eam passes through t he hole (and is re f lected into itsel f ). That ’ s it! Your Newton i an is perfectly collimat ed. A final check of the[...]

  • Page 10

    10 In the silver body L ase r C o lli (picture below) no s harp dot is produced by th e reflected laser beam. The alignment pr ocedure itself is exact ly the same as for a Newton optics – only much simpler. Fasten the Laser-Col li ™ straight i nto the SC-visual ba ck, without usin g a star diag onal, in order to avoid wrong alignm ent due to in[...]

  • Page 11

    11 Changing batteri es Your L aser Colli T M has been adjuste d with the greatest of care f or lifelong service. I t do es not nee d to b e remov e d from it ’ s housing f or changin g the batteries. S imply turn the buckle connecting the pendant on the back of the laser cou nte rcl o ckwise approxima tely three turns to open the battery com- par[...]