Eberline ESP-1 - Page 34

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Press

MODE.

If

Scaler

and

Inquiry/Calibration

Modes

are

disabled

the

display

will

look

like:

ALM

[ALARM

SETTING]

RATEMETER

READING

|

The

setting

of

"ALM

AT"

establishes

the

count

rate

at

which

the

alarm

sounds.

If

the

level

of

activity

exceeds

this

setting,

the

operator

will

be

alerted

by

a

2000-Hz

tone

emitted

by

the

speaker.

This

tone

will

sound

even

if

the

speaker

is

off

at

the

time

the

alarm

is

activated.

Pressing

SPKR

acknowledges

the

alarm,

silencing

it.

The

alarm

will

remain

silent

until

the

readout

has

dropped

below

the

alarm

setting

and

exceeded

it

again.

The

value

of

the

alarm

setting

can

be

increased

or

decreased

by

pressing

RESET

and

"+"

or

"-"

simultaneously.

When

the

desired

value

of

"ALM

AT"

is

displayed,

press

MODE

to

return

to

Rate

Meter

Mode.

NOTE

The

longer

RESET

and

"+"

or

"-"

are

depressed,

the

faster

{һе

value

changes.

This

facilitates

large

value

changes

in

a

relatively

short time.

Releasing

the

switches

and

depressing

again

will

retum

to

slower

value

changes.

This

applies

anytime

RESET

and

"+"

or

"-"

are

used

as

described

in

the

operations

that

follow.

When

the

ESP-1

is

in

the

Rate

Meter

Mode,

the

operator

may

adjust

the

full

scale

of

the

bar

graph

and

choose

fast

or

slow

ranges

of

response

time.

The

bar

graph

functions

essentially

as

a

graphic

presentation

of

detector

count

rate.

Pressing

RESET

will

position

the

end

of

the

bar

graph

at

a

point

that

is

33

percent

of

the

total

window

width

from

the

left

side

of

the

display.

As

an

example,

100

mR/h

is

displayed

as:

ШШ

1.00

+

02

mR/h

When

RESET

is

pressed,

the

end

of

the

bar

graph

represents

100

mR/n.

If

the

level

drops,

the

end

of

the

bar

graph

will

move

to

the

left.

If

the

level

increases,

the

end

of

the

bar

graph

will

move

to

the

right.

If

the

level

increases

more

than

a

factor

of

3

(above

300

mR/h

in

this

example),

the

end

of

the

bar

graph

will

go

off

scale

on

the

right.

Pressing

RESET

will

bring

the

end

of

the

bar

graph

into

view

again

and

will

set

its

value

again.

2.

Scaler

Mode

(refer

to

figure

3-3)

Begin

in

Rate

Meter

Mode

and

press

MODE.

If

the

Inquiry/Calibration

Mode

is

disabled,

the

display

will

read:

.

5САГЕК

МОРЕ?

+

=

USE/-

=

NO

Pressing

"-"

will

call

the

"ALM

AT"

parameter

as

previously

described.

Press

"+."

You

аге

now

in

the

Scaler

Mode.

The

display

will

read:

UNITS

=

EVENTS

+

=

USE/-

=

NO

ESP1.MAN/February

1992

|

3-5

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