Calculated Industries 9130 User manual

T IME M ASTER
™
II
ADVANCED TIME CALCULATOR
Model 9130
User’s Guide

User’s Guide — 1
TABLE OF CONTENTS
INTRODUCING TIME MASTER II . . .2
KEY DEFINITIONS / FUNCTIONS .3
Standard Calculator Keys . . . . . .3
Time Function Keys . . . . . . . . . . .4
Duration Function Keys . . . . . . . .5
Timer Function Keys . . . . . . . . . .6
Other Function Keys . . . . . . . . . .6
OPERATING BASICS . . . . . . . . . . . .8
BASIC MATH . . . . . . . . . . . . . . . . .8
Cumulative Memory . . . . . . . . . .9
Memory Functions . . . . . . . . . .10
Preference Settings . . . . . . . . . .11
Time Conventions . . . . . . . . . . .12
USING THE TIME MASTER II . . . .14
ENTERING TIME VALUES . . . . . .14
Time Conversions . . . . . . . . . . .16
Time Math . . . . . . . . . . . . . . . . .17
Beginning, End and Duration . .20
Using the Timer . . . . . . . . . . . . .22
Split / Lap Functions . . . . . . . . .24
PAPERLESS TAPE FUNCTION . . .25
RATE FUNCTION . . . . . . . . . . . . .27
APPENDIX . . . . . . . . . . . . . . . . . . .30
ADDITIONAL INFORMATION . . .30
WARRANTY AND REPAIR . . . . . .32

2— Time Master II
INTRODUCING TIME MASTER™II
The Time Master™II calculator has been
designed to simplify calculations involv-
ing time. Schedulers, athletic trainers,
payroll clerks, and other time-counters
will find this calculator saves time and
money by reducing errors on tedious,
time-consuming 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 more

User’s Guide — 3
KEY DEFINITIONS / FUNCTIONS
Standard Calculator Keys
oOn/Clear -Turns power on.
Pressing once clears the
display. Pressing twice clears
all temporary values.
OOff -Turns all power off, clearing
all non-permanent registers.
rRecall - Used to recall stored
values.
s] Store -Used to store values.
CConvert -Used to convert
between time formats or to
access second functions.
0 through 9 &•
Keys used to enter digits.
+ – x ÷ =]
Basic arithmetic operation keys.
%Percent Key - Four function
(+–x÷)% key.
C% Delta Percent - Calculates the
% difference between two
numbers.

4— Time Master II
Time Function Keys
HHour - Enters / converts to
decimal hours or Hour: Minute:
Second (H:M:S) time formats.
Repeated presses will toggle
between formats.
mMinute -Enters / converts to
decimal minutes or Minute:
Second (M:S) time formats.
Repeated presses will toggle
between formats.
ß Seconds -Enters / converts to
seconds.
:Time Unit Separator - Used as
a separator for entering times.
Also switches a value to 24
hour format.
ADesignates entry as AM.
pDesignates entry as PM.
MAuto-Entry mode - Toggles the
entry method as follows:
1) Auto-Entry H:M:S (or H:M)
2) Auto-Entry 24 hour
3) Decimal Entry (default)

User’s Guide — 5
Duration Function Keys
B Beginning Point - Used with
the Eand D keys to enter
or calculate the starting point of
a time duration.
EEnd Point - Used with[Band
Dkeys to enter or calculate
the ending point of a time
duration.
C 1 (+1 day) -Plus One Day - Used
before the E key to add 24
hours to a time calculation.
C 2 (+2 day) -Plus Two Day - Used
before the E key to add 48
hours to a time calculation.
C 3 (+3 day) -Plus Three Day -
Used before the E key to add
72 hours to a time calculation.
DDuration -Used with B and
E keys, and the +1 day, +2 day,
+3 day functions to enter or
calculate the duration of time.
RRate -Multiplies a numerical or
time value by the rate or
temporarily overrides a stored
rate. See “Rate Function” page
27.
sRStore Rate -Stores a value as
a rate. See “Rate Function”
page 27.

6— Time Master II
Timer Function Keys
TStopwatch / Timer - Used to
access the Stopwatch/Timer
Function.
SSplit / Lap Function - Pauses
the timer display, without
stopping the timer. If the S/LP
preference is set to the “Split”
option, the total time elapse
from the start of the timer to the
moment the Skey is pressed
will be displayed. If set to the
“Lap” option, the elapsed time
between presses of Sis
displayed.
Other Function Keys
PPreference Settings -Used to
access the preference settings.
Repeated presses will cycle
through the various preferences.
Once in the preference setting
mode, the + and – keys are
used to change preference
options.
C÷ Inverse Function - Calculates
the reciprocal of the displayed
value.

User’s Guide — 7
Cx All Clear -Clears all values
and returns all settings to
their default values.
CrClear M+ - Clears the value in
the cumulative memory without
changing the display.
C+ Clear Memory -Clears all
values stored in Memory loca-
tions 0 through 9. (See
“Memory Functions.”)
C– Change Sign -Toggles the sign
of the displayed value to
positive or negative.
C: (12/24 Hr) 24 Hr - Converts
time value to 24 hour (military)
time format.
r= Paperless Tape -Accesses the
Paperless Tape mode, which
keeps track of your last 20
entries.

8— Time Master II
OPERATING BASICS
Basic Math
Your calculator uses standard chaining
logic, which simply means that the
calculations are made in the order
entered.
Keystroke Display
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 % of a number or for working
add-on, discount or division
% calculations.
Keystroke Display
355x15% 53.25
250+65% 412.5
25–5% 23.75
100÷50% 200.
Delta %
The function finds the
% change between two values. The =
key must be pressed to complete the
calculation.
Keystroke Display
10C%15=] 50.
100C%25= - -75.

User’s Guide — 9
Cumulative Memory (M+)
s 0 (M+) is a cumulative memory in
which values of the same convention
can be added. It has the following
special keystrokes (in addition to those
defined above):
Steps Keystroke
Subtract from M+ Cs0
Display and Clear M+ r r
Clear M+ without
changing the display C r
Using M+
Keystroke Display
355s0 M+ 355.
255s0 M+ 255.
r 0 M+ 610.
745Cs0 ‘‘‘‘M+ 745.
rr -- -135.

10 — Time Master II
Memory Functions
The Time Master™II can store and recall
up to 9 separate non-cumulative
Memory values. When a value is stored
in Memory, that value does not change
until it is revised or the calculator is
reset. Values can be stored in any
format.
Steps Keystroke
Store value in Memory s 1 ... 9
Recall value in Memory r 1 ... 9
Clear one Memory value 0 s 1 ...9
Clear all Memory values C +
Storing Values
Keystroke Display
355s1 M-1 355.
o0.
r 1 M-1 355.
2 5 s 1 ‘‘‘‘M-1 25.
o-- 0.
r 1 M-1 25.
0 s 1 M-1 0.

User’s Guide — 11
Preference Settings
The Time Master™II includes user-
selectable preference settings that
allow you to customize the calculator
for your specific needs or special situa-
tions. To access the preference set-
tings, simply press the P key.
Repeated presses of this key will scroll
through the various options which may
be altered by pressing +or –keys.
Accessing Preference Settings
Keystroke Display
To set Seconds display:
P (1st press of P)SECSOn
+ (plus sign) SECSOff
To set Rate format:
P (2nd press of P)Rate 0.00
+Rate 0.
+Rate 0.0000000
To set Timer format:
P (3rd press of P)TMR 0:00:00.0
+TMR 0:00:00.00
+TMR 0:00:00
To set Split / Lap format:
P (4th press of P) S/LP SPLIt
+S/LP Lap
To set Timer Buzzer:
P (5th press of P) BuzzOn
+Buzz Off
To set Key Beep:
P (6th press of P)Beep Off
+Beep On

12 — Time Master II
Time Conventions
When you are dealing with time, there
are actually two kinds of time values that
must be considered:
1. Points in Time: 9:22 AM, 5 PM
2. Time Periods: 37 Minutes, 45
Seconds
The time math rules are as follows:
Addition
Period + Period = Period
3 Hrs. + 22 Min. = 3 HR 22 MIN
Point + Period = Point
9 AM + 22 Min. = 9:22 AM
Point + Point = Error
Note: You cannot add two points
in time as the result would be
meaningless.
Subtraction
Period – Period = Period
3 Hrs. – 22 Min. = 2 HR 38 MIN
Point – Period = Point
9 AM – 22 Min. = 8:38 AM
Point – Point = Period
9 AM – 8:30 AM = 30 MIN
Period – Point = Error
Note: When subtracting one point in
time from another, it’s best to enter
the “later” time first, then subtract the
earlier time.

User’s Guide — 13
Multiplication
Period x Period = Error
Point x Period = Error
Point x Point = Error
Period x Number = Period
9 Hrs. X 3 = 27 HR
Point x Number = Error
Division
Period ÷ Period = Number
9 Hrs. ÷ 9 Min. = 60 (9 min. segments)
Period ÷ Number = Period
9 Hrs. ÷ 60 = 9 MIN
Period ÷ Point = Error
Point ÷ Period = Error
Point ÷ Number = Error
Point ÷ Point = Error

14 — Time Master II
USING THE TIME MASTER™II
ENTERING TIME VALUES
The Time Master™II allows the user to
enter time in several different ways. By
using the M] key to toggle between
modes, you can choose to enter time
in Decimal format (default), Auto-Entry
H:M:S mode, or Auto-Entry 24-hour
mode.
Keystroke Display
MAUTO 0:00:00 HR MIN SEC
MAUTO 00:00:00
MDEC 0.
Decimal Mode
In this mode entries are made for
regular or time calculations (when
defined with the time unit keys). Time
values are entered into the calculator
as they are spoken aloud, with the
largest time unit entered first.
Keystroke Display
Add the following time values in Decimal mode:
3 : 22: + 03:22:00
17m32ß 17:32. MIN SEC
=03:39:32
423m+ 423:00 MIN SEC
38•25ß 38.25 SEC
=423:38.25 MIN SEC
* If you are not in Decimal mode,
repeatedly press M until DEC 0. is
displayed.

User’s Guide — 15
If you are entering points in time, you
do not have to use the :key. Under
this method you would enter the time
as it is read, then press Aor p.
Keystroke Display
Enter 8:05 am in Decimal mode:
805A 8:05:00 AM
Auto Entry H:M:S Mode
In this mode, the calculator assumes
the value is being entered in an Hour:
Minute:Second (H:M:S) format. The
calculator will scroll the numbers
entered from right to left. Entered
H:M:S formatted values are limited to
less than 100 hours. However, the cal-
culator will display results greater than
100 hours in H:M:S format.
Keystroke Display
Set to H:M:S mode and add the following values:
M*AUTO 0:00:00 HR MIN SEC
120345+ 12:03:45 HR MIN SEC
110410 11:04:10 HR MIN SEC
+14::40 14:00:40 HR MIN SEC
[phone]:22:12 HR MIN SEC
=102:30:47 HR MIN SEC
Return to Decimal mode (default):
MM*DEC 0.
* Repeatedly press M, if needed,
until desired mode is displayed.

16 — Time Master II
Auto Entry 24-hour Mode
This mode is used to automatically
enter time in a 24-hour format. It will
display a 00:00:00 without the HR MIN
SEC identifiers when the display is
cleared. Time in this mode is entered in
the same way it is in the H:M:S mode,
but the time values will roll back to
00:00:00 after every 24 hours.
Keystroke Display
Set to 24–Hour mode and add the following values:
M M*AUTO 00:00:00
120345+ 12:03:45
110410 11:04:10
+14::40 14:00:40
[phone]:22:12
=06:30:47
Return to Decimal mode (default)
M*DEC 0.
*Repeatedly press M, if needed,
until desired mode is displayed
Time Conversions
One of the most useful functions of the
Time Master II is its ability to convert
between all time formats with the touch
of just two keys:cCand any of the
time unit keys: H m or ß.
Keystroke Display
Convert 3 hours, 30 minutes to other formats:
3H30m 3:30: HR MIN
C H 3.5 HR
C m 210. MIN
C m 210:00 MIN SEC
C ß 12600. SEC

User’s Guide — 17
Time Math
Simple Addition
Keystroke Display
Add the following time values:
112H+ 112:00:00 HR MIN SEC
33m22ß+ 112:33:22 HR MIN SEC
3H21m+ 115:54:22 HR MIN SEC
145ß+ 115:56:47 HR MIN SEC
17m12ß+116:13:59 HR MIN SEC
33•75m 33:75 MIN
= 116:47:44 HR MIN SEC
Athletics – Split Times Required
Amarathon runner wants to run a 26.2
mile marathon in 3 hrs 15 min. How
fast should he run each mile?
Keystroke Display
Enter total time:
3H15m 3:15: HR MIN
Divide by miles:
÷26•2= 0:07:26.56 HR MIN SEC
Athletics– Split Times Projected
In the 800-meter freestyle, a swimmer
has just completed 200 Meters (or 25%
of the race) in 2 minutes 11.35 seconds.
If his pace holds up, what will his final
time be?
(con’t)

18 — Time Master II
Keystroke Display
Enter time:
2m11•35ß 2:11.35 MIN SEC
Divide by % completed:
÷25% 8:45.40 MIN SEC
Scheduling – Time/Motion
Adata entry clerk can process 17 forms
in ten minutes. How long will it take to
process 1,250 forms?
Keystroke Display
Enter Time
10m 10: MIN SEC
Divide by number of forms:
÷17= 0:35.29 MIN SEC
Multiply by 1250:
x1250= 735:17.65 MIN SEC
Convert to H:M:S: format:
CH 12:15:17.65 HR MIN SEC
Production – Spacing
Aradio advertiser wants to air 15
evenly spaced spots during the
morning hours of 6 AM – 10 AM. Find
the number of minutes between spots,
and the times for the first few spots.
(con’t)

User’s Guide — 19
Keystroke Display
Enter end time:
10A10:00:00 AM
Subtract start time:
–6A= 4:00:00 HR MIN SEC
Divide by number of spots:
÷15= 0:16:00 HR MIN SEC
Store result into memory:
s1 M-1 0:16:00 HR MIN SEC
Enter start time of 1st spot:
6A 6:00:00 AM
Find start time of 2nd spot:
+r1= 6:16:00 AM
Find start time of 3rd spot:
=6:32:00 AM
=6:48:00 AM
Continue pressing =to solve for the remaining
spot start times.
Production – Fixed Lengths
You have a 22 minute demonstration
video which is set to automatically
repeat. If the rewinding takes another
90 seconds, how many times will the
tape replay in eight hours?
Keystroke Display
Enter Time length:
22m22: MIN
Add rewind time length:
+90ß= 23:30 MIN SEC
Store result into Memory:
s1 M-1 23:30 MIN SEC
Enter total hours:
8 H 8: HR
Divide by value stored in Memory:
÷r1= 20.425532