Calculated Industries Time Master II User manual

HR MIN SEC
Tape
M+
AC
+ / –
12/24 hr
∆ %
Clr Mem
1/
x
T IME
M ASTE R
™
I I
2
÷
8
3
0
4 5 6
7 9
•
1
=
+
+
–
On/C
Off
Rcl
Stor
:
Mode
Sec Min
Hr
PMAM
Dur
Beg End Rate
%
S/Lap
Prefs
Timer
Conv
CALCULATED INDUSTRIES
®
TIME MASTER™II
User’s Guide
CALCULATED
INDUSTRIES
®
We put answers at your fingertips

Introducing Time Master II . . . . . . . . . .3
Key Definitions/Functions . . . . . . . . . .4
Standard Calculator Keys . . . . . . . . .4
Time Function Keys . . . . . . . . . . . .5
Timer Function Keys . . . . . . . . . . .6
Other Function Keys . . . . . . . . . . . .7
Operating Basics . . . . . . . . . . . . . . . .9
Basic Math . . . . . . . . . . . . . . . . . . .9
Memory Function . . . . . . . . . . . . .10
Memory “0” . . . . . . . . . . . . . . . . .11
Preference Function . . . . . . . . . . .12
Time Conventions . . . . . . . . . . . . .14
Using the Time Master II . . . . . . . . . .16
Entering Time Values . . . . . . . . . . .16
Time Conversions . . . . . . . . . . . . .19
Time Math . . . . . . . . . . . . . . . . . .20
Beginning, End & Duration . . . . . .24
Using the Timer . . . . . . . . . . . . . .25
Split/Lap Functions . . . . . . . . . . . .27
Paperless Tape Feature . . . . . . . . .28
Rate Function . . . . . . . . . . . . . . . .30
Appendix . . . . . . . . . . . . . . . . . . . .33
Additional Information . . . . . . . . .33
Warranty and Repair . . . . . . . . . . .35
TABLE OF CONTENTS
2 – Time Master ™ II

The Time Master II calculator has been
designed to simplify calculations involv-
ing time. Schedulers, athletic trainers,
payroll clerks, and other disciplines will
find this calculator saves time and money
by reducing errors on tedious, time–con-
suming problems.
◆Performs time math operations
◆Converts between time formats
(Hours, Minutes, Seconds, H:M:S and
Decimal format)
◆Finds elapsed times
◆Has built–in timer/stopwatch with
lap/split time functions
◆And much, much more
INTRODUCING TIME MASTER™II
User’s Guide – 3

Standard Calculator Keys
[On/C] — On/Clear
Turns power on. One press clears the
last entry. Two presses clear all tem-
porary registers.
[Off] — Off
Turns power off, resetting all non–per-
manent storage registers.
[Rcl] — Recall
Used to recall stored values.
[Stor] — Storage
Used to store values.
[Conv] — Convert
Used to convert values, or to access
special functions.
[0] through [9] & [•]
Keys used to enter digits.
[+] [–] [x] [#] [=]
Basic arithmetic operation keys.
[%] — Percent Key
Four–function percent key.
KEY DEFINITIONS/FUNCTIONS
4 – Time Master ™ II

[Conv] [%] — Delta Percent
Calculates the percentage difference
between two numbers.
Time Function Keys
[Hr] — Hour
Enters/converts to decimal hours
or Hour:Minute:Second (H:M:S) time
formats. Repeated presses will toggle
between formats.
[Min] — Minute
Enters/converts to decimal minutes
or Minute:Second (M:S) time
formats. Repeated presses will tog-
gle
between formats.
[Sec] — Seconds
Enters/converts to seconds.
[:] — Time Unit Separator
Used as a separator for auto–entry
mode. Also switches a value to 24
hour format.
[AM]
Designates entry as AM.
[PM]
Designates entry as PM.
User’s Guide – 5

[Mode] — Auto–Entry Mode
Toggles the entry method as follows:
1) Decimal Entry
2) Auto–Entry H:M:S (or H:M)
3) Auto–Entry 24–hour
[Beg] — Beginning Point
Enters/calculates the starting point.
Used with [End] and/or [Dur].
[End] — End Point
Enters/calculates the end point.
Used with [Beg] and/or [Dur].
[Dur] — Duration
Enters/calculates the duration. Used
with [Beg] and/or [End].
[Rate] — Rate Function
Allows you to multiply a time value
by a number (or rate) to get an out-
put that is a decimal number.
Timer Function Keys
[Timer] — Stopwatch/Timer
Used to access the timer or stop
watch functions.
[S/Lap] — Split/Lap Function
Pauses the timer display, without stop-
ping the timer. If the S/LP preference
is set to the “Split” option, the total time
6 – Time Master ™ II

elapsed from the start of the timer to
the moment the [S/Lap] key is pressed
will be displayed. If set to the “Lap”
option, the elapsed time between
presses of [S/Lap] is displayed.
Other Function Keys
[Prefs] — Preference Settings
A multi–press key used to access
and change the default preferences.
Once in the preference setting
mode, the [+] and [–] keys are used
to change preference options.
[Conv] [#] — Inverse Function
Calculates the inverse of the dis-
played value.
[Conv] [x] — All Clear
Resets calculator to default values
and settings.
[Conv] [+] — Clear Memory
Clears all values stored in Memory
locations 0 through 9. ( See “Memory
Functions.” )
[Conv] [–] — Change Sign
Toggles the sign of the displayed
value.
User’s Guide – 7

8 – Time Master ™ II
[Rcl] [=] — Paperless Tape
Used to verify the last entries or
operations of a calculation. See
“Paperless Tape.”
[Conv] [Rcl] — Clear Memory “0”
Clears the value in the cumulative
memory cell “0” without changing
the display.

Basic Math
Your calculator uses standard chaining
logic, which simply means that the calcu-
lations are made in the order entered.
3 [+] 2 [=] 5
3 [–] 2 [=] 1
3 [x] 2 [=] 6
3 [÷] 2 [=] 1.5
Percent Calculations
The percent [%] key is used for finding
a given percentage of a number or for
working add–on, discount or division
percentage calculations.
355 [x] 15 [%] 53.25
250 [+] 6.5 [%] 266.25
25 [–] 5 [%] 23.75
100 [÷] 50 [%] 200.
OPERATING BASICS
User’s Guide – 9

Delta Percent
The Delta Percent function finds the
percent change between two values.
The [=] key must be pressed to com-
plete the calculation.
10 [Conv] [%] 15 [=] 50.
100 [Conv] [%] 25 [=] – 75.
Memory Functions
The Time Master II can store and recall up
to 10 separate memory values. When a
value is stored in memory, that value does
not change until it is revised or the calcu-
lator is reset. Values can be stored in any
format.
Function Keystrokes
Store value in mem. [Stor] [0] ... [9]
Recall value in mem. [Rcl] [0] ... [9]
Clear one mem. value [0] [Stor] [1] ... [9]
Clear all mem. values [Conv] [+]
Storing Values
Keystrokes Display
355 [Stor] 1 M–1355.
[On/C] 0.
[Rcl] 1 M–1355.
25 [Stor] 1 M–125.
[On/C] 0.
[Rcl] 1 M–125.
0 [Stor] 1 M–10.
10 – Time Master ™ II