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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of EverFocus EZ-VF325NH, 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 EverFocus EZ-VF325NH 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 EverFocus EZ-VF325NH. 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 EverFocus EZ-VF325NH should contain:
- informations concerning technical data of EverFocus EZ-VF325NH
- name of the manufacturer and a year of construction of the EverFocus EZ-VF325NH item
- rules of operation, control and maintenance of the EverFocus EZ-VF325NH 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 EverFocus EZ-VF325NH 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 EverFocus EZ-VF325NH, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the EverFocus 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 EverFocus EZ-VF325NH.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the EverFocus EZ-VF325NH 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
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Page 1
EVERFOCUS 1/3” 550 TVL High Resolution DSP Color Mini Bullet Camera Operation Instructions Model No. EZ-VF325NH Please read this manual first for correct install ation and op eration. This manual should be re tained for future reference. The information in this manual was current when publ ish ed. The manufacturer reserves the right to revise and[...]
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Page 2
1 PREF ACE The stylish appearanc e can be applied as per ins taller's ideal lo cations on the ceiling or wall . The mini bullet cam era designe d with adva nced digital p rocessing ci rcuitry for hi gh resoluti o n 1/3" color interline transfer CCD sensor . V ery low power consumption of 150mA or less. FEA TURES z 1/3” Sony Super HAD CC[...]
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Page 3
2 SPECIFICA TIONS Vide o Format NTSC Image Sensor 1/3" Sony ICX638 Super HAD CCD Scanning System 2:1 Inter lace Scanning Frequency H: 15734 KHZ, V:59.94 Hz Sensitivity 0.2 Lux/F=2.0 Total Pixels 811 (H) x 508 (V), 401k Effective Pixels 768 (H) x 494 (V), 380K Horizontal Resolution 550 TVL S/N Ratio Over 45B Electronic Shutter 1/50(1/60)~1/100,[...]
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Page 4
3 DIMENSIONS 19mm / .75" 54.7mm / 2. 15 " 50mm / 2" 28.6mm / 1.1 40mm / 1. 6" 24.8mm / 1" ¼” UNC[...]
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Page 5
4 MAJOR P AR TS FUNCTIONS (1) Lens This V ari-Focal Lens al lows users to adjust th e Zoom and Focus manually . (3) V ideo Output BNC Connector BNC 1.0Vp-p, 75ohm. Use the connector to connect with the video in conn ector of a monitor . (2) Power input Use the connector to connect with 1 2VDC power adaptor . INST ALLA TION This section covers d eta[...]
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Page 6
5 c. Fix the bracket to the mounting s ervic e with included screws see figure 1 -1 2. Fix camera to mounting Bracket. a. Install camera on bracket by tuning the ca mera clockwise on to the ¼” screw on the bracket until ca mera is facing up. b. T urn the bracket’ s securing ring to tighten the cameras position. Above in figures 2-2, 2-3, are t[...]
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Page 7
6 3. Connect Power and V ideo a. Connect pig tail ( male power adapter) to the ca mera female power connector . See Figure 3- 1. b. Connect power to pigtail wires (p igtail- male power adapter is pur chased sepa rately) Pigtail Polarity: (Important since DC voltage is used) Black Wire with white stripe is positive and solid black wire is negative. [...]
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Page 8
7 T roubles h ooting No power Check to be certain that you have sufficient current or amperage from the power supply . Amount of current needed depends on voltage. See this manuals spec. sheet for information on power consumption. Pic ture output i s horiz ontal. Depending on camera will be installed on wall or on ceiling, you may have to remove ca[...]
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Page 9
8 EverFocus Electronics Corp. Head Office: 12F , No.79 Sec. 1 Shin-T ai W u Road, Hsi-Chih, T aipei, T aiwan TEL: +886-2-26982334 F AX: +886-2-26982380 www .everfocus.com.tw USA L.A . Office: 1801 Highland A ve. Unit A Duarte, CA 9101 0, U.S.A. TEL: +1-626-844-8888 F AX: +1-626-844-8838 www .everfocus.com USA N.Y . Office: 415 Oser A venue Unit S H[...]