Calculated Industries Time Master II User manual

HR MIN SEC

Tape

M+

–

12/24 hr

∆

Clr Mem

IME

ASTE

™

4 5 6

7 9

•

–

On/C

Off

Rcl

Stor

Mode

Sec

Min

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

™

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

™

[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

™

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

™

[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

™

Table of contents

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