45170CM
‐
en
‐
GB_V1.1
1/15
4
MIN,
MAX,
Data
Recording
Function
1.
Press
the
Rec
button
once.
The
REC
symbol
will
appear
on
the
display.
This
starts
the
Min/Max
Data
Recording
session
.
2.
Press
Rec
again
and
the
REC
MAX
symbol,
along
with
the
maximum
value,
will
appear
on
the
display.
3.
Press
the
Rec
again
and
the
REC
MIN
symbol,
along
with
the
minimum
value,
will
appear
on
the
display.
4.
To
erase
(reset)
the
recorded
Max
or
Min
values
press
the
HOLD
button
once
(while
in
the
Record
mode
with
either
the
MAX
or
the
MIN
icon
showing).
5.
Press
and
Hold
the
Rec
button
for
2
seconds
to
exit
the
Min/Max
Data
Record
Mode
and
to
return
to
the
normal
mode.
REC
and
MAX/MIN
icons
will
disappear.
Data
Hold
Press
the
HOLD
button
to
freeze
the
reading
in
the
display.
The
'HOLD'
icon
will
appear
on
the
upper
right
‐
hand
side
of
the
display.
Press
the
HOLD
button
again
to
return
to
normal
operation
(the
'HOLD'
hold
icon
will
disappear).
Auto
Power
OFF
The
meter
will
automatically
turn
off
after
10
minutes
if
no
keys
are
pressed
during
this
period.
Note
that
the
Auto
power
off
function
is
disabled
in
the
Max/Min
recording
mode.
Battery
Replacement
When
the
low
battery
icon
appears
or
when
the
meter
will
not
switch
ON
please
replace
the
battery.
The
battery
compartment
is
located
on
the
back
of
the
meter,
secured
by
a
Phillips
head
screw.
Open
the
compartment
and
replace
the
9V
battery
observing
correct
polarity.
Do
not
switch
the
meter
ON
until
the
battery
compartment
is
secured
with
the
screw.
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.
Useful
Equations
Area
equations:
Cubic
equations:
CFM
(ft
3
/min)
=
Air
Velocity
(ft/min)
x
Area
(ft
2
)
CMM
(m
3
/min)
=
Air
Velocity
(m/sec)
x
Area
(m
2
)
x
60
