Eberline ESP-1 - SECTION II. SIMPLIFIED OPERATING INSTRUCTIONS; INTRODUCTION

A.
MODEL ESP-1
SECTION
11.
SIMPLIFIED
OPERATING
INSTRUCTIONS
INTRODUCTION
1. General
This
section
is
intended
to
provide
the
first
time
user
with
a
quick
guide
to
what
the
ESP-1
does
and
how
to
operate
it.
Much
of
the
information
included
here
occurs
in
later
sections
of
this
manual in more detail.
The
ESP-1
is
simple
and
straightforward
in
its
operation.
The
basic
principle
of
operation
is
that
the
signal
from
an
attached
detector
is
input
into
the
computer
in
the
ESP-1
instrument,
and
this
signal
is
converted
to
count
rate.
The
ESP-1
can
be
used
either
as
a
rate
meter
or
as
a
scaler,
and a variety of units can be selected for display of the data.
The ESP-1 has three modes of operation:
a. The Rate Meter Mode:
updates
and
displays
selected
units
per
time,
such
as
counts
per
minute
or
mR/h;
provides
the
operator
with
a
dual
representation
of
count
rate;
that
is,
it
provides
a
moving
analog
bar
graph
representing
count
rate
and
also
a
digital
value
for
count
rate;
alarms when a preset value is exceeded.
The
Rate
Meter
Mode
is
generally
used
for
routine
surveys
of
surfaces,
personnel,
and
clothing
for
either
contamination
or
exposure
rate
measurements
from
a
radioactive
source.
b. The Scaler Mode:
allows
setting
the
time
interval
over
which
counts
or
events
are
to
be
measured;
counting is started and ends after the selected time interval;
registers the number of events for integrated exposure in the selected
time interval;
sounds audible alarm if the integrated counts in the selected time period
exceeds the value set on the alarm.
The
Scaler
Mode
is
used
for
quantitive
data
accumulation
over
a
longer
period
of
time.
Using
the
Scaler
Mode,
comparisons
can
be
made
of
radioactivity
in
various
samples
or
situations
with
the
result
that
increased
accuracy
in
the
data
may
be
obtained
by
counting
over
longer
periods
of
time.
An
example
would
be
the
determination
of
thyroid
gland
ESP1.MAN/February 1992
2-1