Dwyer Instruments 450A-1 Data sheet
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RS
232
DC
9V
SET
HOLD
CAL
Esc
M /AV
MODE
DP/WBT
N
X
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Model
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Range: 0-999ppm 450A-1
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450A-1
Digital Pocket Size Carbon Monoxide Meter
Measures Up To 999 ppm, Audible Alarm
The Model 450A-1 Digital Pocket Size Carbon Monoxide Meter measures the
ambient concentration of carbon monoxide (CO) in the environment and displays the
measurement on the two line digital LCD screen. Besides the measurement, the maximum
recorded CO value since the last reset is shown. An audible carbon monoxide alarm gives
warning of CO levels above 25 ppm. For viewing in poorly lit environments, the built-in
backlight brightens the display. Model 450A includes soft carrying case with belt loop,
wrist strap, and batteries.
Model 450A-1, Digital Pocket Size Carbon Monoxide Meter
CONTACT US | U.S. 219/879-8000 | U.K. (+44) (0)1494-461707 | A.U. (+61) (0) 2 4272 2055 | China +852-23181007
SPECIFICATIONS
Range: 0 to 999 ppm.
Accuracy (at 20 ±5°C, 50 ±20% RH): ±20% @ 0 to 100 ppm; ±15% @ 100 to 500
ppm.
Resolution: 1 ppm.
Display: Dual digital LCD display.
Response Time: Less than 60 seconds.
Sensor: Electrochemical carbon monoxide sensor.
Temperature Limits: -10 to 60°C (14 to 140°F).
Humidity Limits (Non-Condensing): 5 to 99% RH.
Power Requirements: (3) 1.5 V AAA alkaline batteries, included, user replaceable.
Battery Life: 250 hours with ba cklight off; 35 hours with backlight on.
Weight: 4.23 oz (120 g).
Alarms: Audible, preset at 25 ppm.
Agency Approval: CE.
449
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