Extech
Instruments
27 GX900-EU-EN V1.6 4/14
MINIMUM
(MIN)
AND
MAXIMUM
(MAX)
READINGS
The
MIN
‐
MAX
recording
mode
captures
minimum,
maximum,
and
average
measurement
values.
When
the
measurement
falls
below
the
recorded
minimum
value
or
above
the
recorded
maximum
value,
the
meter
beeps
and
records
the
new
value.
The
meter
stores
the
elapsed
time
since
the
recording
session
was
started
at
the
same
time.
The
MIN
‐
MAX
mode
also
calculates
an
average
of
all
readings
taken
since
the
MIN
‐
MAX
mode
was
activated.
Average
mode
is
useful
for
capturing
intermittent
readings
and
recording
readings
while
equipment
operation
precludes
watching
the
meter.
The
MIN
‐
MAX
mode
is
useful
when
recording
power
supply
surges,
in
‐
rush
currents,
and
finding
intermittent
failures.
Response
time
is
the
length
of
time
an
input
must
remain
at
a
new
value
to
be
captured
as
a
possible
new
minimum
or
maximum
valued.
To
activate
the
MIN
‐
MAX
mode,
press
the
MIN
‐
MAX
button;
the
display
will
indicate
the
MIN
‐
MAX
values
at
the
top
of
the
measurement
page.
The
start
date
and
time
are
indicated
at
the
bottom
of
the
measurement
page.
In
addition,
the
recorded
MIN
‐
MAX
‐
AVG
values
appear
in
the
secondary
display
with
their
respective
elapsed
timers.
To
stop
a
MIN
‐
MAX
recording
session
press
the
key
labeled
STOP.
The
summary
information
in
the
display
freezes
and
the
keys
change
function
to
allow
saving
the
collected
data.
Press
the
key
labeled
‘CLOSE’
to
discard
the
collected
data
and
return
to
the
normal
operating
mode.
To
save
the
MIN
‐
MAX
screen
data,
the
MIN
‐
MAX
session
must
be
ended
by
pressing
the
key
labeled
STOP.
After
pressing
STOP,
press
the
key
labeled
SAVE.
A
dialogue
box
will
open
prompting
for
a
filename
(a
name
is
automatically
proposed
which
can
be
accepted
or
changed
by
the
user).
Press
the
key
labeled
SAVE.
Press
the
key
labeled
RESTART
while
MIN
‐
MAX
is
running
stops
the
MIN
‐
MAX
session,
discards
all
MIN
‐
MAX
data,
and
starts
a
new
MIN
‐
MAX
recording
session.
