4
IR270
‐
en
‐
GB_V1.0
12/17
Operation
Meter
Power
One
9V
battery
powers
the
meter.
Pull
the
meter
trigger
to
switch
the
meter
ON.
If
the
meter
does
not
switch
ON,
please
check
the
battery
(located
in
the
meter
handle);
refer
to
the
Maintenance
section
for
more
information.
The
battery
icon
provides
battery
status;
replace
the
battery
as
soon
as
the
battery
icon
flashes.
The
meter
switches
OFF
seven
seconds
after
you
release
the
trigger
(during
the
seven
‐
second
period
the
last
reading
freezes
on
the
display).
Surface
Temperature
Measurements
1.
Hold
the
meter
by
its
handle
and
point
it
toward
the
surface
under
test.
2.
Pull
and
hold
the
trigger
to
turn
the
meter
ON
and
to
scan
surface
temperatures.
With
the
trigger
pulled
the
SCAN
icon
flashes
in
the
upper
left
area
of
the
display.
Read
the
measured
temperature
in
the
primary
display
area.
3.
If
‘HI’
appears
on
the
main
LCD
digits,
the
temperature
reading
exceeds
the
high
range
of
the
meter.
4.
Release
the
trigger;
the
reading
will
hold
for
approximately
7
seconds,
and
then
the
meter
will
automatically
shut
off.
5.
Refer
to
the
Field
of
View
section
for
distance
to
target
(spot)
ratio
considerations.
6.
The
meter
defaults
to
the
programmed
conditions
in
use
when
the
meter
was
last
switched
OFF.
For
example,
if
the
laser
is
set
to
default
to
ON
and
the
temperature
units
are
set
to
o
F
at
the
time
the
unit
is
switched
OFF,
the
unit
will
switch
ON
and
use
the
same
settings.
Laser
Pointer
and
LCD
Backlight
Default
Modes
Press
the
M
button
or
pull/release
the
trigger
to
turn
the
meter
ON.
Now,
press
and
release
the
button
to
step
through
these
default
conditions:
Laser
ON/Backlight
OFF
Laser
ON/Backlight
ON
Laser
OFF/Backlight
OFF
Laser
OFF/Backlight
ON
When
you
enable
the
laser,
the
laser
icon
appears
on
the
upper
left.
To
use
the
laser,
pull
and
hold
the
trigger
and
aim
the
laser
approximately
one
half
inch
above
the
point
of
test.
Selecting
the
Temperature
Unit
of
Measure
(°C/°F)
With
the
meter
ON,
long
press
the
M
button
to
switch
the
temperature
units.
The
display
beeps
and
switches
between
°C
and
°F.
Locating
Hot
or
Cold
Spots
To
locate
a
hot
or
cold
spot
while
scanning,
aim
the
meter
outside
the
area
of
interest
then
scan
(in
an
up
and
down
motion)
until
the
spot
is
located.
