3.
Normal
source
of
potentially dangerous carbon
monoxide:
»•Stove,
gas
stove
or
fireplace lack
of
maintenance
"Blocked
exhaust pipe
for
chimney
*Gas,
petrol
or
kerosene
tools
lack
of
maintenance
"Combustion
motor
(such
äs
auto, grass
mower
and
blower)
III.
LCD
display
(äs
shown
m
Figure
1)
1.
Detection
in
process
2.
Maximum value
3.
Average value
4.
Data hold
5.
Backlight
6.
Battery electric quantity
7. Gas
concentration reading
8.
Gas
concentration unit
9.
Temperature reading
10.
Temperature unit
©
©
®
©
(D-psCAN
MAX
AVG
HOLD
$
Figure
1
.
Name
and
function
of
each component
(äs
shown
in
Figure
2)
1.
Air
hole (pay attention
to not
block)
2.
LCD
display
3.
Inspection
4.
Power switch
5.
Setting
Figure
2
V.
Operation Instructions
LStartup
Press
the
power switch
"
(l)
"
to
start
up.
2.
Carbon monoxide concentration value indication
After
startup,
LCD
panel
will display
in the
füll
screen,
and
display
carbon monoxide concentration value
and
temperature
value under current environment after counting
backwards
for
10
seconds.
Long press "SCAN"
to
switch temperature unit between
centigrade
and
fahrenheit,
and in
case that carbon monoxide
concentration value
is 0
äs
displayed
on the
screen,
it
indicates that
there
is no
carbon monoxide under
the
current
environment.
3.
Buzzing
In
case that carbon monoxide concentration
is
between
50ppm
and
100ppm, buzzing
will
be on
discontinuously;
in
case that
the
carbon monoxide concentration
is
above
100ppm, buzzing
will
be on
continuously.lt
can
change
buzzing
alarm
limit
by
setting maximum
and
minimum
concentration value.
4.
Check
the
maximum
and
minimum carbon monoxide
concentration value
Press"SET",the
screen
displays"HI.",and
the
default
maximum carbon monoxide concentration value
is
100ppm;
press
the
"SET"
again,
the
screen
displays"
Lo",
and the
default minimum carbon monoxide concentration value
is
SOppm.
Press down "SET",
the
Instrument
will
display
the
maximum
and
minimum carbon monoxide oncentration
values repeatedly.
5. Set the
maximum
and
minimum carbon monoxide
concentration values
Long
press
the"SET",and"HI."or"Lo"will
flash.
Press
"SET",and
the
instrument will
display"HI."or"Lo"repeatedly.
Long press
"SCAN"or
power switch
"([)"
to
increase
or
decreasecarbon monoxide concentration values
and
increase
or
decrease action
can be
rapidly obtained
by
long
press
the
key.
For
example,
during
"Hl."flashing,
press
"SCAN"for
once,
and
100ppm will change
into
101ppm; press power
switch"(j)"again,
and
101ppm
will
change into 100ppm,
and so on. It
will
automatically exit
the
setting
Status
if it is not
operated
for 10
seconds.
Or
long
press"SET"again,"HI."or"Lo"will
stop flashing,
and it
can
also exit
the
setting
Status
by
pressing"SCAN".
6.
Maximum value, average value
and
data hold
(1)Press"SCAN",
and the
screen will display MAX,
and at
this time
the
screen
will
display
the
maximum reading.
(2)Press"SCAN"again,
the
screen
will
display AVG,
and at
this
time
the
screen will display
the
average reading.
(3)Press"SCAN"again,
the
screen will display HOLD,
and the
current data will
be
locked
up.
(4)Press"SCAN"again
and the
screen will display SCAN.
(5)Press"SCAN",and
the
instrument will display
the
recorded
maximum average value reading
and the
current locked
value.
7. LCD
backlight
Press
the
power switch"
(|)
"under starting
Status,
the
backlight
will
be on, and the
backlight
will
be
automatically
off
if not
pressing
the
power
switch"(l)
"again
for 10
seconds.
8.
Shutdown
Manual shutdown: please long press power switch
"(•)"
until
"OFF" appears
to
shut down.
Automatic
shutdown:it
is
regarded
äs
default that
the
machine
will
automatically shut down
if it is not
operated
for
10
minutes.
9.
Battery replacement
When
the
battery power
is not
sufficient,
LCD
would
displays
"
^
"
which means that
the
battery power
is
not
sufficient
and
it
is
necessary
to
replace
new
battery.
If the
instrument
has
not
been used
for
long
time, please take
out the
battery
to
prevent electricity leakage which
may
damage
the
instrument.
VI.
Technical
parameter
Detected
gas
Measuring
ränge
Frequency
ratio
Minimum
reading
Basic
error
Response
time
Sensor
type
Working
environment
Storage
environment
Power
supply
Dimension
Weight
COinair
0~1000ppm
1ppm
1ppm
±5%(F.S),±10ppm
60
seconds
Electrochemistry
CO
sensor
0~50°C,
32-1
22°F;
10-90%RH
-10~80°C,
-14-176T;
10~75%RH
2x1.
5V
AAAbattery
55.
7x29.
9x135.
5mm
104g
Specific
Declarations:
Ourcompany
shall
hold
no any
responisibility
resulting
from
using
Output
from
this
product
äs
an
direct
or
indirect
evidence.
We
reserves
the
right
to
modify
product
design
and
specification
without
notice.
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