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Installation and Operation of the
AMC-1228 Electrochemical Sensor Module
For Use With Multidrop AMC Monitors
IMPORTANT:
Please read these installation and operating instructions completely
and carefully before starting.
Filename: 3075405B
215 Colonnade Road South, Ottawa, Ontario, Canada K2E 7K3
Tel: (613) 225-9531 • Fax: (613) 225-6965 • U.S. & CANADA Toll Free: (800) 465-5777
E-mail: gas@armstrongmonitoring.com • Internet: www.armstrongmonitoring.com/gas/
1228
Multidrop Version
INSTRUCTIONS
The Armstrong Monitoring Corporation
Revised, Apr. 17 2007
Copyright ©, September 1996
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Summary of Contents for AMC AMC-1228
- Page 1 1228 Multidrop Version INSTRUCTIONS Installation and Operation of the AMC-1228 Electrochemical Sensor Module For Use With Multidrop AMC Monitors IMPORTANT: Please read these installation and operating instructions completely and carefully before starting. Revised, Apr. 17 2007 Filename: 3075405B Copyright ©, September 1996...
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Page 3: Table Of Contents
CALIBRATION......................10 5.2.1 Span Adjustment ....................10 5.2.2 Alarm Adjustment ....................11 MAINTENANCE ........................12 GENERAL ........................12 VERIFICATION OF OPERATION ................12 SENSOR REPLACEMENT ..................12 ADDENDUM........................13 AMC MULTIDROP WITH HIGH ALARM LATCHING OPTION ........13 7.1.1 OVERVIEW ......................13 7.1.2 OPERATION ......................13 7.1.3 LATCHING MODULE SPECIFICATIONS .............13... - Page 4 AMC-1228 Multidrop...
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Page 5: Warranty
AMC shall have no liability for labour or freight costs, or any other costs or charges in excess of the amount of the invoice for the products. -
Page 6: Product Information
AMC-1228 Multidrop 2 PRODUCT INFORMATION 2.1 SENSOR MODULE Sensor Module Part Number …………………………. Sensor Module Serial Number ……………………….. Sensor Element Part Number ………………………… Sensor Element Serial Number ………………………. Sensor Warranty Period ………………………………. ______ years Wire Gauge …………………………………………….. 18 AWG @150 ft max between units Power Supply Requirement …………………………... -
Page 7: Product Description
AMC-1228 Multidrop 3 PRODUCT DESCRIPTION In this section a general product description is given followed by a detailed list of the AMC-1228 unit's internal features. 3.1 GENERAL DESCRIPTION The AMC-1228 sensor unit provides continuous, reliable surveillance of surrounding air for traces of hazardous gases (listed in section 2.2 FACTORY CALIBRATION, page 4). - Page 8 AMC-1228 Multidrop FIGURE 1: Internal Features of the AMC-1228 sensor module.
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Page 9: Installation
AMC-1228 Multidrop 4 INSTALLATION This section relates to the proper installation of the AMC-1228 unit. The topics of proper location, sensor wiring selection, and multi-unit interconnection are all discussed in detail. 4.1 LOCATION AND MOUNTING Mount the sensor unit on a solid, non-vibrating surface or structure, easily accessible for status checking and calibration. - Page 10 AMC-1228 Multidrop FIGURE 2: Detail wiring of sensor modules.
- Page 11 AMC-1228 Multidrop FIGURE 3: Typical system configuration layouts.
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Page 12: Operation And Calibration
AMC-1228 Multidrop 5 OPERATION AND CALIBRATION This section covers instructions for the proper operation and calibration of the AMC-1228 unit. The operation principles are described in further detail, followed by different types of periodic adjustments that might be required throughout the lifetime of the equipment. -
Page 13: Alarm Adjustment
AMC-1228 Multidrop 3. Using Span Adjust Trimmer adjust signal voltage to proportional calibration gas concentration. I.E. Full Scale = 10ppm NO2 =3VDC/Full Scale X Calibration Gas Calibration Gas = 5ppm NO2 =3VDC/10ppm X 5ppm = 1.5VDC 5.2.2 Alarm Adjustment Alarm Adjustment can be made with the corresponding High or Low Trimmer. -
Page 14: Maintenance
AMC-1228 Multidrop 6 MAINTENANCE This section covers topics related to the maintenance of the AMC-1228 unit. A general description of maintenance to be carried out is followed by a verification of operation and then details about the sensor replacement. 6.1 GENERAL The sensor unit should be brushed or wiped clean once a year or more, of any dust or dirt which settles on it, depending on the accumulation. -
Page 15: Addendum
7.1 AMC MULTIDROP WITH HIGH ALARM LATCHING OPTION 7.1.1 OVERVIEW For the AMC Multidrop there is a latching alarm option available. This may be used where one would like to know if there has been a high alarm level of gas overnight, or other period when unattended.
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