Instruction/ maintenance manual of the product DF-551 Datexx
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Operation Manual W orld Time L CD Clock, w/ Built-in 10 Digit, Desktop Calculat or W orld Time—16 Cities! DENVER, CHICAGO , NEW Y ORK, SAN JU AN, SYDNEY , ANCHOR A GE, HONOL UL U, L OS ANGELES, KARACHI, HONG K ONG, T OKY O , LONDON, P ARIS, JERUSALEM, MOSC OW , MY ZONE .
Setting custom time zone (MY Z ONE) F or those of us who are not close to one of the 16 major key cities listed on this unit, Datexx has provided the MY Z ONE k ey , which may be customized to your local time and is not aff ected by automatic Daylight Sa vings Time adjustments.
Pr ofit Analysis Example1: If the cost is $19.95 and selling Price is $39.90, what is the profit margin (%)? Pr ess [1][9][.][9][5] [COST ] [3][9][.][9] [SELL] Pr ofit% =50 Example2: If the selling price is $20 and profit margin needs to be 50%, how much the cost should be? Pr ess [2][0] [SELL] [5][0] [Profit%] Cost=10 Example3: If the cost is $69.
W ar ning: (Keep batteries out of the reach of children) Reset F eature If at any time the Calcula tor or Clock freezes , T urn calculator ov er and locate the reset butt on on the bottom. Use an opened paper clip to push the button. ( The actual button is located inside the cover).
An important point after buying a device Datexx DF-551 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Datexx DF-551 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Datexx DF-551 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Datexx DF-551 you will learn all the available features of the product, as well as information on its operation. The information that you get Datexx DF-551 will certainly help you make a decision on the purchase.
If you already are a holder of Datexx DF-551, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Datexx DF-551.
However, one of the most important roles played by the user manual is to help in solving problems with Datexx DF-551. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Datexx DF-551 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
