CMT CMT-300 - Page 15

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To

access

an

option,

press

the

corresponding

key

while

the

program

is

running.

Release

the

key

when

you hear

a

beep.

(If

you

clear

flag

26

before

executing

this

program,

no

audible

tones

will

be

produced.)

Following

is

a

description

of the

various

optionms.

When

prompted

for

an

input

within

a

selected

option,

key

in

the

appropriate

entry,

and press

[R/S].

Remark: Note

that

the

PRGM

annunciator

is

on

while

the

program

is

running.

More power

is

consumed

while

a

program

is

running

than

when

the

calcu-

lator

is

idle.

A

method

of

obtaining

readings

without

continuously

running

a

program

is

described

in

Section

9.

Measurement

Mode

(Function)

Selection

Press

a

key

in

the

second

row

to

select

a

mea-

surement

function

(eg.

KOHM).

Whenever

the

mode

is

switched

to

VDC,

VAC

or

KOHM,

the

range

will

be

reset

to

100X.

When

the

mode

is

switched

to

ADC

or

AAC

the

range

will

be

automatically

set

to

.lX.

The

display

will

be

appropriately

reformatted

to

reflect

the

change.

When

the

measurement

mode

is

changed,

you will

often

hear

a

click.

This

is

due

to

the

relay

in

the

preconditioning

circuitry,

and

is

part

of the

normal

operation

of

the

CMT-300.

Range

Selection

Press

a

key

in

the

first

row

to

select

the

desired

range.

The

display

will

be

reformatted

to

reflect

the

change.

Any

attempt

to

access an invalid

range

for

a

given

mode

will

be

ignored.

For

example,

the

range

remains

.1X

for

the

ADC

mode

no

matter

which

key

in

the

first

row

has

been

pressed.

An

out-of-range

reading

will

be

dis-

played

as

"OVLD'"

by

the HP-41.