UV505-en-GB_V1.0 12/17
4
Data
Hold
Short
press
the
button
to
freeze
or
unfreeze
a
reading
on
the
display.
Backlight
The
LCD
is
equipped
with
backlighting
for
easier
viewing,
especially
in
dimly
lit
areas.
Short
press
the
backlight
button
to
turn
on
the
backlight.
The
backlight
will
automatically
turn
off
after
10
seconds.
Measurement Considerations
Keep
the
light
sensor
clean
and
free
of
scratches.
Dust
lightly
with
dry
lint
free
cloth.
Avoid
reflections
or
shadows
on
the
sensor
while
taking
measurements.
For
best
accuracy,
repeat
the
measurement
several
times
to
ensure
that
the
light
source
has
remained
stable.
Maintenance
Battery
Replacement
1.
Power
OFF
the
meter.
2.
Press
and
hold
the
locking
button
above
the
battery
compartment
(back
of
the
meter)
and
slide
the
battery
compartment
door
off
in
a
downward
motion.
3.
Replace
the
two
‘AAA’
1.5V
batteries
observing
correct
polarity.
Re
‐
assemble
the
meter
before
use.
Battery
Safety:
Please
dispose
of
batteries
responsibly;
never
dispose
of
batteries
in
a
fire,
batteries
may
explode
or
leak.
If
the
meter
is
not
to
be
used
for
60
days
or
more,
remove
the
batteries
and
store
separately.
Never
dispose
of
used
batteries
or
rechargeable
batteries
in
household
waste.
As
consumers,
users
are
legally
required
to
take
used
batteries
to
appropriate
collection
sites,
the
retail
store
where
the
batteries
were
purchased,
or
wherever
batteries
are
sold.
Disposal:
Do
not
dispose
of
this
instrument
in
household
waste.
The
user
is
obligated
to
take
end
‐
of
‐
life
devices
to
a
designated
collection
point
for
the
disposal
of
electrical
and
electronic
equipment.
Cleaning
and
Storage
Periodically
wipe
the
case
with
a
damp
cloth
and
mild
detergent;
do
not
use
abrasives
or
solvents.
Use
a
dry
lint
free
dust
cloth
to
clear
debris
and
dust
from
the
sensor.
Avoid
any
materials
that
could
potentially
scratch
the
sensor
surface.
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.com
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