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3.Button
1.Press
~
to
turn
the
thermometer
on
or
off.
2.Press
"MAN/MIX"
to
step through
the
maximum, minimum, and average readings.
To
exit
the
MANJMIX/AVG mode, press
the
"MAN/MIX"
button
for
2 seconds
to
return
to
normal operation.
3.Press
"PN/F"
to
show
the
air
velocity, press "PN/F" secondly
to
show
the
high
and length
of
a reetangular
or
the
diameter circular duct,
press
"PN/P' thirdly
to
show
the
air
flow,
press "PNIF"
to
showdifferential
pressure again.
4.Press
"Hold/Zero"
to
freeze
or
unfreeze
the
displayed readings.
Press
"Hold/Zero"
button
and hold 2 seconds
to
zeroout
the
display.
S.Press
"Save/Ciear"
button
to
store sample data.
Or
press "Save/Ciear"
button
to
clear sample data in
Recall
mode.
6.Press
"Setuplf<"
button
to
turn
on
the
backlight.
Press
it
again
to
turn
off
the
backlight.
Press
"Setup;fl"
button
for
3 seconds
to
start
or
exit
Setup.
(See
"Changing Setup Options.")
7.Press
"Unit"'"
to
changes
the
temperature units. ln Setup mode, press "Unit.._•
to
scroll
to
the Setup option you
want
to
change
or
press
"Unit
.._
..
to
increase
the
displayed setting. ln
Recall
mode,
press
"Unit.._•
to
select
the
desired sample number.
8.Press
"UnitT"
to
Changes secondly showing
number
units. ln Setup mode,
press
"UnitT"
to
scroll
to
the
Setup option you
want
to
change
or
press
"UnitT"
to
increase
the
displayed setting. ln
Recall
mode, press •unit..6."
to
select
the
desired sample number.
9.Press
"Avg/Rec"
button
and hold 2 seconds
to
enter
Recall
mode. ln
Recall
mode,
press
"Avg/Rec"
to
calculate
the
sample data.
ln
Setup mode, press "Avg/Rec•
button
to
enter
a Setup
option.
Press
"Avg/Rec" again
to
store
the
displayed
setting in memory.
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