Df551_om2 – Datexx DESK PILOT II DF-551 User Manual

Page 2

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Setting custom time zone (MY ZONE)

For those of us who are not close to one of the 16
major key cities listed on this unit, Datexx has
provided the MY ZONE key, which may be customized
to your local time and is not affected by automatic
Daylight Savings Time adjustments. If DST is desired,
this adjustment may be made manually. MY ZONE is
the only function not automatically adjusted. The
custom time zone can be set by the following steps:

1. Press and hold the MY ZONE key for 3 seconds. The
display “Minute” will flash.
2. Press UP or DOWN to adjust time. The time starts at
London time and you can adjust time by increments
of 30 minutes.
3. Press the MY ZONE key again to confirm the setting.

*Caution! DO NOT press SET to confirm MY ZONE
time setting. By doing so, it will change other cities’
time. Auto DST feature does not apply on MY ZONE.

Monitoring World Time

One you have programmed your calculator with the
local time (See above) you need only press a city key,
e.g., Los Angeles, to see that time in that city.

Setting the Musical Alarm

1. Press ALARM -- you will see A and 1. This number
will tell you which song the alarm will use. You may
choose between two different musical sounds. To test
the songs just press any key between 1 or 2.
2. Then Press SET once to select the Hour, Twice to
select the Minutes.
3. To change the Hour or Minutes push the DOWN and
UP buttons. Be careful to note the PM designation,
which will tell you whether you are setting the alarm
for morning or afternoon.
4. Once your desired time has been selected, Press SET,
then, to return to the time display, press CLOCK. (A
small bell symbol on the left of the display will show
that the alarm has been set.)
5. To Turn Alarm Off, Press ALARM twice -- until you see
alarm time replaced by a row of dashes, then Press

To disable a sounding alarm, touch any key.
Operating the 10-Digit Calculator
To enter the calculator mode, touch the CAL ON CE/AC
key. (The calculator automatically turns off after about
7 minutes if no key is pressed.)

Performing Calculations

Addition (+)
Example: 6 + 7 = 13. [6] + [7] = 13

Subtraction (–)
Example: 10 – 4 = 6. [1] [0] – [4] = 6

Multiplication (x)
Example: 7 x 5 = 35. [7] x [5] = 35

Percentages (%)
Example: Calculate 6% of 100. [1] [0] [0] x [6] % = 6

Add 6% tax to $20. [2] [0] + [6] % = $21.20

Calculate a 20% discount from $150. [1] [5] [0] – [2]
[0] % = 120

Constant Calculations
Press = to repeat last function.
Calculate 5 x 5 x 5 x 5 + 2 + 2 = 629
Press [5] x = = = + [2] = = 629