UV505-en-GB_V1.0 12/17
3
LCD
Description
1.
Measurement
Reading
2.
Data
Hold
3.
Zero
mode
4.
Low
battery
indicator
5.
Unit
of
measure
(µW/cm
2
or
mW/cm
2
)
Button Descriptions
Press
to
turn
the
meter
ON
or
OFF
Press
to
freeze/unfreeze
the
readings
on
the
display
Short
press
to
toggle
between
µW/cm
2
and
mW/cm
2
Short
press
to
power
ON
the
backlight.
The
backlight
switches
OFF
automatically
after
10
seconds.
With
the
protective
cover
over
the
sensor,
press
to
zero
the
display.
Press
again
to
exit.
Operation
Meter
Power
Short
press
the
power
button
to
switch
the
meter
ON/OFF.
If
the
LCD
does
not
switch
on,
check
the
batteries
located
in
the
rear
battery
compartment.
The
meter
powers
off
automatically
after
15
minutes
of
inactivity.
Zero
the
Sensor
With
the
sensor’s
protective
cover
attached,
short
press
the
button
to
zero
the
display
before
taking
measurements.
The
ZERO
display
alert
will
appear
while
the
meter
is
zeroing.
Press
the
button
again
to
exit
the
mode;
the
ZERO
display
alert
will
switch
off.
Taking
Measurements
Remove
the
sensor
cover
and
aim
the
light
sensor
at
the
UV
light
source.
View
the
measurement
on
the
meter’s
display.
Selecting
Range
and
Unit
of
Measure
Short
press
the
button
to
toggle
the
range
(mW/cm
2
and
µW/cm
2
);
the
lower
display
area
will
show
the
selected
range.
ZERO
mW/cm
uW/cm
HOLD
1
2
3
4
5
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