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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Casio 5251, 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 Casio 5251 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 Casio 5251. 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 Casio 5251 should contain:
- informations concerning technical data of Casio 5251
- name of the manufacturer and a year of construction of the Casio 5251 item
- rules of operation, control and maintenance of the Casio 5251 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 Casio 5251 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 Casio 5251, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Casio 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 Casio 5251.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Casio 5251 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
Operation Guide 5251 (OC) E-7 2. Check the current location settings. Use the procedure under “Confi guring Time and Date Settings” (page E-22) to confi gure your location settings. Important! Proper time calibration signal reception and time settings depend on correct location setting. Make x sure you confi gure these settings correctly. 3.[...]
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Page 2
Operation Guide 5251 (OC) E-15 How Power Saving works The watch will enter the sleep state if it is left in a dark location for about one week. In the sleep state: x All hands stop at 12 o’clock. − Auto Receive is disabled. − Internal timekeeping continues to operate normally. − The watch will not enter a sleep state between 6:00 AM and 9:5[...]
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Page 3
Operation Guide 5251 (OC) E-23 To check the current location setting Pull the crown out to the fi rst click. 1. The x x Second Hand will move to the currently selected location. Push the crown back in. 2. The x x Second Hand will perform movement that indicates whether the watch’s battery requires charging. After that, regular timekeeping will r[...]
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Page 4
Operation Guide 5251 (OC) E-31 Hands off by more than ± 15 minutes 00 seconds In this case, check the position of the v Day Indicator fi rst. Press 7. A and check the v Day Indicator . The x v Day Indicator should show 1 and the x Second Hand should align with the bottom of the v Day Indicator . This can take up to 90 seconds. If the x 1 is not i[...]
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Page 5
Operation Guide 5251 (OC) E-36 Specifi cations Accuracy at normal temperature: ± 15 seconds a month (with no signal calibration) Timekeeping: Hour, minutes, seconds, day Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099 Time Calibration Signal Reception: Auto receive up to three times a day (Remaining auto receives can[...]