AIR SYSTEMS INTERNATIONAL CO-91 Series Manual Download

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Printed in U.S.A

AIR SYSTEMS INTERNATIONAL, INC.

829 Juniper Crescent, Chesapeake, Va. , 23320
Telephone (757) 424-3967
Toll Free 1-800-866-8100
Fax No. (757) 424-5348
http://www.airsystems.cc
e-mail: sales@airsystems.cc

SENSOR REPLACEMENT AND CALIBRATION

PROCEDURE FOR CO-91 SERIES

CARBON MONOXIDE MONITORS

Manual No. MON045
(Rev 2 November 2003)

Air Systems International, Inc.

Registered to ISO 9001

Certificate No. A5033

Summary of Contents for CO-91 Series

Page 1: ...hesapeake Va 23320 Telephone 757 424 3967 Toll Free 1 800 866 8100 Fax No 757 424 5348 http www airsystems cc e mail sales airsystems cc SENSOR REPLACEMENT AND CALIBRATION PROCEDURE FOR CO 91 SERIES CARBON MONOXIDE MONITORS Manual No MON045 Rev 2 November 2003 Air Systems International Inc Registered to ISO 9001 Certificate No A5033 ...

Page 2: ...alibrate STEP 3 Remove end plate to gain access to the sensor cup from outside the housing STEP 1 Disconnect all external connections Remove CO monitor from the unit STEP 2 Remove the four screws from the monitor s left end plate Note Alarm location may vary Replacement sensors are shipped with a metal spring installed between the electrodes Do not remove the clip until the sensor is to be install...

Page 3: ... regulator fully by turning the knob at least two 2 turns counterclockwise 8 Allow digital readout to stabilize approximately 15 30 seconds 9 Adjust zero pot adjustment screw clockwise to increase counterclockwise to decrease until a 00 reading is obtained 10 Turn off the regulator and disconnect the tubing from the zero air regulator 1 Place the on off test switch to the on position 2 Allow 30 se...

Page 4: ...centration ppm as printed on the calibration gas cylinder 6 Turn regulator off and repeat zero adjustment procedure above Display should return to a 00 reading THE MONITOR IS NOW CALIBRATED AND SHOULD BE RECALIBRATED MONTHLY OR IF ACCURACY IS QUESTIONABLE CHECK LOCAL REQUIREMENTS AND RECALIBRATE AS REQUIRED 1 Install regulator to the CO calibration gas cylinder 2 Connect the plug to the monitor 3 ...

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