Eberline ESP-1 - Page 18

ο.
2-6
batteries
according
to
the
diagram
printed
on
the
bottom
surface
of
the
compartment
which
holds
the
batteries.
(See
figure
5-2.)
BATTERY CAUTION
The
ESP-1
and
the
ESP-2
use
a
small
amount
of
power
from
the
batteries
even
when
turned
off,
If
the
instrument
is
not
going
to
be
used
for
some
period
of
time
(say
two
months
or
more),
we
recommend
removing
the
batteries
from
the
instrument.
The
instrument
parameters
will
be
lost
when
the
batteries
are
removed!
The
calibration
parameters
will
also
be
lost
when
the
batteries
are
drained
down.
If
the
batteries
are
left
in
the
unit,
they
may
leak
and
cause
corrosion.
OPERATION IN THE RATE METER MODE
The
ESP-1
is
automatically
placed
in
the
Rate
Meter
Mode
when
the
instrument
is
turned
on.
Examine
the
display.
It
will
show:
1. Analog Bar Graph (at the top of the display)
The
length
of
the
moving
analog
bar
graph
is
proportional
to
the
detector
count
raie.
One
purpose
of
the
moving
bar
graph
is
to
permit
more
rapid
recognition
of
a
sudden
increase
or
decrease
in
the
radiation
field
being
measured
as
compared
to
visual
recognition
from
the
changing
numbers.
If
the
bar
graph
is
off
scale
in
either
direction,
it
may
be
brought
back
on
scale
by
pressing
the
RESET
button.
The
full
scale
value
of
the
bar
depends
on
the
level
of
radiation
being
measured.
Pressing
the
RESET
button
always
resets
the
value
of
the
bar
graph
to
a
point
that
is
33
percent
of
full
scale.
If
the
bar
graph
is
displayed
and
is
varying,
the
ESP-1
is
working.
2.
Numerical
Value
of
Count
Rate
(at
the
bottom
of
the
display)
:
The
second
line
of
the
display
is
the
numerical
value
of
the
count
rate.
The
value
is
expressed
as
a
number
followed
by
a
second
positive
or
negative
number.
The
second
number
corresponds
to
a
power
of
10.
Example:
1.00
"+"
02
mR/h
is
1
x
10*
=
100
mR/h.
3. Alarm
The
alarm
point
is
a
selected
value
which
results
in
an
audible
alarm
when
the
counting
rate
reaches
that
value.
To
silence
the
alarm,
press
SPKR
key.
The
alarm
will
sound
even
if
the
speaker is off at the time the alarm is activated.
The
alarm
point
can
be
viewed
and
set
by
pressing
the
MODE
key.
The
display
will
contain
either
the
"ALM
AT"
(Alarm
Setting)
display
or
will
contain
the
"SCALER
MODE?"
prompt.
If
the
latter
is
displayed,
press
the
-
key
and
you
will
see:
ALM AT (ALARM SETTING)
RATE METER READING
The
value
of
the
alarm
setting
"ALM
AT"
can
be
increased
or
decreased
as
desired
by
simultaneously
pressing
RESET
and
+
or
RESET
and
-.
ESPI.MAN/February 1992
T κ