RH210-en-GB_V1.0 12/14
4
Measurements
Taking
Relative
Humidity
/Dew
Point
and
Air
Temperature
Measurements
1.
Connect
the
electrode
to
the
probe
input
socket
located
on
the
bottom
of
the
meter.
2.
Switch
the
meter
ON
by
pressing
the
Power
button.
3.
The
display
will
indicate
Air
temperature
on
the
lower
left
(in
small
digit
format)
and
either
%RH
or
Dew
point
temperature
on
the
upper
right.
4.
Press
the
Function
button
to
select
either
%RH
or
Dew
Point
Temperature.
5.
Press
the
Hold
button
to
freeze
the
current
values
on
the
display.
6.
Press
the
REC
button
to
access
the
MIN
‐
MAX
Recording
mode.
See
detailed
information
in
the
MIN
‐
MAX
Recording
section.
7.
Press
and
hold
the
Power
button
for
2
seconds
to
turn
the
meter
OFF.
Data
Hold
1.
Press
the
HOLD
button
to
freeze
the
displayed
value.
2.
The
LCD
will
display
HOLD
along
with
the
held
reading.
3.
Press
the
HOLD
button
again
to
release
the
data
hold
function.
The
HOLD
display
icon
will
switch
OFF.
MIN
‐
MAX
Recording
When
selected,
the
Data
Recording
function
records
the
MIN
(lowest)
and
MAX
(highest)
readings:
1.
Press
the
REC
button
once
to
start
recording
MIN
and
MAX
readings.
The
REC
indicator
will
appear
on
the
display.
2.
Press
REC
again
and
REC
MAX
will
display
on
the
screen
along
with
the
maximum
value.
3.
Press
REC
again
and
the
display
will
show
REC
MIN
along
with
the
minimum
value.
4.
To
view
the
real
time
readings
while
continuing
to
track
the
MIN
and
MAX
values,
press
the
HOLD
button
while
either
the
REC
MAX
or
REC
MIN
icons
are
visible;
now
only
the
REC
icon
will
be
visible.
The
meter
is
now
continuing
to
monitor
the
highest
(MAX)
and
lowest
(MIN)
readings
but
is
displaying
real
time
measurements.
To
view
the
MAX
and
MIN
values
again
use
the
REC
button
as
described
earlier.
5.
To
exit
the
Record
mode
and
reset
the
MIN
and
MAX
values,
press
and
hold
the
REC
button
for
at
least
2
seconds.
The
display
will
return
to
the
normal
operating
mode
and
the
REC/MAX/MIN
icons
will
all
disappear.
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