EXTECH
INSTRUMENTS
5
IR255
‐
en
‐
EU_V1.4
9/14
Setting
Mode
Press
the
SET
button
to
access
the
Setting
Mode.
Use
the
up
and
down
buttons
to
navigate
the
Setting
Mode
menu
and
to
make
changes.
The
available
parameters
are
listed
below:
Emissivity
setting
°C/°F
temperature
units
selection
Temperature
Alarm
Audible
Beeper
Enable/Disable
High
Temperature
Alarm
Limit
setting
Low
Temperature
Alarm
Limit
setting
The
corresponding
parameter
icon
will
flash
when
selected.
To
exit
the
Setting
Mode,
press
and
hold
the
SET
button
for
two
seconds.
Emissivity
Setting
The
icon
will
flash
when
selected.
Use
the
up
and
down
buttons
to
increase
or
decrease
the
emissivity
(in
0.01
steps).
The
emissivity
range
is
0.10
to
1.00.
Hold
down
the
up
or
down
button
to
rapidly
increase
or
decrease
the
emissivity
value.
Press
the
SET
button
to
confirm
and
to
step
to
the
next
option.
Selecting
the
Temperature
Unit
of
Measure
(°C/°F)
Use
the
up
and
down
buttons
to
select
°C
or
°F.
Press
the
SET
button
to
confirm
and
to
step
to
the
next
option.
Enable/Disable
Audible
Temperature
Alarm
This
parameter
is
used
to
enable/disable
the
audible
temperature
alarm.
The
icon
will
flash
in
this
mode.
Use
the
up
and
down
buttons
to
toggle
the
setting.
When
the
audible
alarm
is
disabled,
the
display
will
show
‘HIGH
LOW’.
When
the
audible
alarm
is
enabled,
the
display
will
show
.
When
the
audible
alarm
is
enabled,
the
beeper
is
allowed
to
sound
whenever
the
measured
temperature
goes
beyond
the
high
or
low
temperature
limit
values.
Press
the
SET
button
to
confirm
and
to
step
to
the
next
option.
HIGH
Temperature
Alarm
Limit
Setting
Use
the
up
and
down
buttons
to
increase
or
decrease
the
High
Alarm
Temperature
Limit
(in
0.1
steps).
Holding
down
the
up
or
down
button
will
rapidly
increase
or
decrease
the
HIGH
limit
value.
A
beep
will
sound
if
the
HIGH
temperature
value
reaches
the
LOW
temperature
value
while
programming.
Press
the
SET
button
to
confirm
and
to
step
to
the
next
option.
LOW
Temperature
Alarm
Limit
Setting
Use
the
up
and
own
buttons
to
increase
or
decrease
the
Low
Alarm
Temperature
Limit
(in
0.1
steps).
Holding
down
the
up
or
down
button
will
rapidly
increase
or
decrease
the
LOW
limit
value.
A
beep
will
sound
if
the
LOW
temperature
value
reaches
the
HIGH
temperature
value
while
programming.
Press
the
SET
button
to
confirm
and
to
step
to
the
next
option.
