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Dwyer Instruments 450 Series, Instructions And Operation

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Dwyer Instruments 450 Series Instructions And Operation Download Page 8

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Bulletin D-25

SERIES 450 CALIBRATION LOG:

Calibrate once every 4 months/Replace sensor if unit can no longer be calibrated.

©Copyright 2002 Dwyer Instruments, Inc.

Printed in U.S.A. 11/02        FR# 08-443193-00 Rev. 1

DWYER INSTRUMENTS, INC. 

Phone: 219/879-8000    www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A.    Fax: 219/872-9057  e-mail: [email protected]

Lit-By Fax: 888/891-4963 

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d-25small  11/5/02  3:02 PM  Page 8

Summary of Contents for 450 Series

Page 1: ...n labeled Heavy Duty are not recommended because of their shorter life and increased potential for leakage Alkaline batteries are a better value because they typically last up to three times longer in this device Duracell is a registered trademark of Duracell USA a division of Duracell Inc Eveready is a registered trademark of Eveready Battery Company Inc The Series 450 CO Monitor measures car bon...

Page 2: ...nnunciator and the display will again be updated To Store a Reading In Memory Up to 25 CO readings may be stored in memory Pressing will store the presently displayed value in memory The active memory location will be displayed in the lower left starting initially with 1 The MEM descriptor will turn on any time there are any values stored in memory m MEM PPM CO Memory Location HOLD PPM CO HOLD Ann...

Page 3: ...y shows the active memory location upper display shows the memory value Use and to sequence through the memory locations To clear the memory press and hold the key for five seconds while in this menu loca tion Reading the Peak Value The Peak feature stores the highest reading the monitor has measured since the last reset or Power On At Power On PEA is reset to the present reading To view the peak ...

Page 4: ...LF Alarm Flasher is displayed in the lower left display Then use the key to turn the Visual alarm off The upper display will read OFF Then press to store the change To turn the Visual alarm back on press the key then press to store the change The Audio alarm may be turned off or on in the same way as the Visual alarm by indexing the menu until the lower left display reads ALb Alarm Beeper Zero Adj...

Page 5: ...low rate correctly to 0 5 L min A 450 2 Calibration Adapter Adapter connects the regulator to the sensor cover on the back of the CO Monitor A 450 3 Replacement Sensor A 450 4 Aspirator Kit Includes aspirator bulb adapter tubing and probe A 450 5 Calibration Regulator Kit without Series 450 Carbon Monoxide Monitor same as A 450 1 except without Series 450 Handheld Carbon Monoxide Monitor CALIBRATI...

Page 6: ...il the display reads CAL0 Press and hold the and enter keys for five seconds until the lower dis play reads CAL1 Verify that the upper display reads between 125 and 400 then press the and keys simultaneously The display will blink to show the calibration value has been stored If the value is 125 or greater than 400 the sensor is bad needs to be replaced Refer to SENSOR REPLACE MENT 4 Index the men...

Page 7: ...e shorting wire spring from pins on new sensor 5 Carefully install new sensor into instrument Re install cap and mounting screws 6 New sensors must be recalibrated Wait a minimum of 30 minutes after installing a new sensor before calibrating the instrument The instrument has internal temperature compensation and the sensor must be at the same tem perature as the instrument to calibrate properly GA...

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