LT45-EU-EN v1.4 9/13
7
Measurement
Considerations
and
User
Tips
For
maximum
accuracy
allow
the
light
being
measured
to
fall
directly
on
the
sensor
as
perpendicular
as
possible
with
a
minimal
angle
of
incidence.
When
the
meter
is
not
in
use,
please
keep
the
protective
cap
in
place,
covering
the
light
sensor.
This
will
prolong
the
life
of
the
sensor.
When
the
meter
is
to
be
stored
for
long
periods,
please
remove
the
battery
and
store
it
separately.
Batteries
can
leak
and
cause
damage
to
the
meter’s
components.
Avoid
areas
of
high
temperature
and
humidity
when
using
this
instrument.
Battery
Replacement
and
Maintenance
Cleaning
and
storage
1. The
white
plastic
sensor
dome
should
be
cleaned
with
a
damp
cloth
when
necessary.
Use
only
a
mild
soap
if
needed.
Do
not
use
solvents,
abrasives,
or
harsh
detergents
to
clean
the
dome.
2. Store
the
meter
in
an
area
with
moderate
temperature
and
relative
humidity.
Battery
Replacement
When
the
battery
power
decreases
to
a
critical
level,
the
battery
symbol
will
appear
as
empty
on
the
LCD.
Replace
the
9V
battery
located
in
the
rear
battery
compartment.
The
battery
compartment
slides
easily
downward
for
removal
(in
the
direction
of
the
printed
arrow
on
the
rear
of
the
meter).
Ensure
that
the
compartment
cover
is
securely
fastened
before
using
the
meter.
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.
Battery
Safety
Reminders
o
Please
dispose
of
batteries
responsibly;
observe
local,
state,
national
regulations.
o
Never
dispose
of
batteries
in
a
fire;
batteries
may
explode
or
leak.
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