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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Bosch Appliances DS426I, 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.
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Unfortunately, only a few customers devote their time to read an instruction of Bosch Appliances DS426I. 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.
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First and foremost, an user manual of Bosch Appliances DS426I should contain:
- informations concerning technical data of Bosch Appliances DS426I
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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Bosch Appliances DS426I 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 Bosch Appliances DS426I, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Bosch Appliances 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 Bosch Appliances DS426I.
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Table of contents for the manual
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Page 1
Installation Instructions DS422i and DS426i Dual Beam Photoelectric Intrusion Detection Systems 1.0 Specifications • Range: Indoors Outdoors DS422i 300 ft. (90 m) 100 ft. (30 m) DS426i 600 ft. (180 m) 200 ft. (60 m) • Dimensions (HxWxD): 6.75 in. x 3.25 in. x 3.5 in. 171 mm x 82 mm x 87 mm • Voltage: 12 to 28 VDC. Non-Polarized. • Current :[...]
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Page 2
Page 2 © 2004 Bosch Security Systems DS422i/426i Installation Instructions NOTE: Be sure all wiring is unpowered before routing. • Route wiring (for wire size see Section 4.0) through the mounting plate wire entrance (see Figure B), leaving enough to properly wire the transmitter. • Route the wiring through the transmitter’s wire entrance. ?[...]
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Page 3
DS422i/426i Installation Instructions © 2004 Bosch Security Systems Page 3 Transmitted Beam Transmitted Beam str ength is strong est along th is path Transmitted Beam weake ns farther from its center Receive r's Line- of-Sig ht Figure H - Beam Strength Area • Set the meter to read 3 to 5 VDC. • Fine peak the transmitter . Connect the mete[...]
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Page 4
© 2004 Bosch Security Systems 130 Perinton Parkway , Fairport, New Y ork, USA 14450-9199 Customer Service: (800) 289-0096; T echnical Support: (888) 886-6189 03/04 DS422i/DS426i Installation Instructions P/N: 44974D Page 4 Figure R- Perimeter protection Note that the beams are mounted so they cross each other . This way , an intruder can not enter[...]