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Bulletin
LJ-;'!:
Series 450 Carbon Monoxide Monitor
Instructions and Operation
DWYER INSTRUMENTS, INC.
I
Phone: 219/879-8000
www.dwyer-instcom
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361 U.S.A.
Fax: 219/872-9057
e-mail: infoOdwyer-instl
Lit-by-Fax: 888/891-4963
'NOTE:
This instrument
is
shipped
with a
new
9V
bat
tery. However, there is
a
protective
plastic
cap
installed on
the
bat1ery
terminals.
This
cap
must
be
removed
and
the
bat1ery
connected
to
the
bat1ery
terminal
before
the instru
ment will
function.
The Series 450 CO Monitor
measures
car
bon monoxide from levels 0 to 2000
PPM.
The
unit is
equipped
with audible and visual indica
tors of CO
concentration.
The beacon indica
tor flashes
in
correspondence
to the level of
CO detected in the air.
Perfect
for HVAC appli
cations
such as
servicing
heaters,
furnaces,
appliances and for general building inspection.
BATTERY INSTALLATION
Remove
two
screws
holding the bottom
end
cap
labeled BATfERY in place and remove it.
Connect the battery to the enclosed battery
clip
observing
correct polarity.
Insert
the bat
tery in the case. Be careful not to trap the
wires between
the
case or foam pad,
which
retains the battery.
This
could
make it difficult
to
install the
battery
or remove it later for
replacement. Be sure the rubber gasket is
properly
seated in the gasket channel and
PHYSICAL DATA
Range:
0-2000 PPM
.
Resolution:
1 PPM.
Accuracy:
(using 200 PPM calibration g.
+/-
3% of reading
+/
-
the
accuracy
of
thl
calibration
gas, at the time of calibration.
Response Time:
<30
seconds
to 90%
(
reading.
Operating Temperature:
32 to
104°F
( 0-40°C).
Humidity Conditions:
0-90%
Relative
Humidity Non Condensing.
Adjustments:
Zero and Span
via
keypaf
Power*:
9V Battery.
Battery Life:
500 hours typical
Case Material:
Anodized Aluminum wiH
plastic
end caps.
Dimensions:
6.8"
Lx
2.8"
W
x
0.9" D
except add OS D for
sensor
cover.
(172.7
x
71.1
x
22.9
mm) (12.7mm).
Sensor Type: Field
replaceable
Electrochemical
Cel/.
Sensor Life:
2 years
minimum.
Alarms:
2 Alarms,
with audible
and visu;
replace the endcap. Note that the endcap
only fit one
way
because the holes are
sli~
off-center.
Place
the "Z" shaped wrist
strap
in one of the
screw
recesses and replace
screw. Do not overtighten.
Attach
the
v
strap to the
Clip
.
Use only 9 Volt alkaline type batteries
sucl
Duracell® MN 1604, or
Eveready@
522,
equivalent. Zinc-carbon types, often lab,
Heavy-Duty are not recommended becaus
their
shorter
life
and
increased
potential
leakage. Alkaline batteries are a better
v
because they typically last up
to
three til
longer in this device.
Ourace!I,
is
a
registered trademark of
Ouracell
USA.
a
OMs
Duracell
Inc.
Eveready is
a registered trademark
of
Eveready
Battery
Compa.
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