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ACM 200 Series Instructions Manual

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AMC-200 Series Transmitter
INSTALLATION AND OPERATING INSTRUCTIONS
FOR THE AMC-200 SERIES TRANSMITTER
IMPORTANT:
Please read these installation and operating instructions completely
and carefully before starting.
filename: Manual_amc200_transmitter.doc
215 Colonnade Road South, Nepean, Ontario, Canada K2E 7K3
Tel: (613) 225-9531 • Fax: (613) 225-6965 • U.S. & Can. Toll Free: (800) 465-5777
E-mail: gas@armstrongmonitoring.com • Internet: www.armstrongmonitoring.com/gas/
200
Transmitter
INSTRUCTIONS
The Armstrong Monitoring Corporation
Series
Revised, 4/16/2002
Copyright ©, April 2002, AMC

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  • Page 1 Series Transmitter INSTRUCTIONS AMC-200 Series Transmitter INSTALLATION AND OPERATING INSTRUCTIONS FOR THE AMC-200 SERIES TRANSMITTER IMPORTANT: Please read these installation and operating instructions completely and carefully before starting. Revised, 4/16/2002 filename: Manual_amc200_transmitter.doc Copyright ©, April 2002, AMC The Armstrong Monitoring Corporation 215 Colonnade Road South, Nepean, Ontario, Canada K2E 7K3 Tel: (613) 225-9531 •...

  • Page 3: Table Of Contents

    AMC-200 Transmitter TABLE OF CONTENTS Section Title Page WARRANTY......................iii LIABILITY......................iii MODIFICATIONS AND SUBSTITUTIONS............iii PRODUCT RETURN ..................iii PRODUCT INFORMATION..................iv TRANSMITTER....................iv FACTORY SETTINGS ..................iv PRODUCT DESCRIPTION ..................1 GENERAL DESCRIPTION................. 1 3.1.1 SENSOR SPECIFICATIONS ................1 INSTALLATION ....................... 2 LOCATION AND MOUNTING................2 CABLE SELECTION AND WIRING ..............
  • Page 4 AMC-200 Transmitter NOTE This page intentionally left blank...

  • Page 5: Warranty

    AMC-200 Transmitter 1 WARRANTY The AMC-200 Series Transmitter is warranted against defects in material and workmanship for a period of two (2) years from date of delivery. During the warranty period, The Armstrong Monitoring Corporation will repair or replace components that prove to be defective in the opinion of AMC.

  • Page 6: Product Information

    AMC-200 Transmitter 2 PRODUCT INFORMATION 2.1 TRANSMITTER Sensor/transmitter Unit Order Number ………………………. Transmitter Part Number ……………………………………….. Transmitter Serial Number ……………………………………… Sensor Part Number ……………………………………………. Sensor Serial Number ………………………………………….. Power Supply Requirement ……………………………………. 12 to 30 VDC @ 20 mA 2.2 FACTORY SETTINGS Gas Type ………………………………………………………….

  • Page 7: Product Description

    3 PRODUCT DESCRIPTION 3.1 GENERAL DESCRIPTION The AMC-200 series sensor/transmitter unit is designed to provide continuous, reliable surveillance of surrounding air for traces of a specific hazardous gas (listed in section 2.2, Factory Settings). This unit provides a 4 to 20 mA, variable current signal which is proportional to the gas concentration detected.

  • Page 8: Installation

    AMC-200 Transmitter 4 INSTALLATION 4.1 LOCATION AND MOUNTING Mount the sensor/transmitter unit on a solid, non-vibrating surface or structure in an area where the local concentration of gas is unaffected by the presence of ventilation systems and away from sources of interference gases. The sensor housing SHOULD NOT touch the mounting surface.

  • Page 9: Cable Selection And Wiring

    AMC-200 Transmitter 4.2 CABLE SELECTION AND WIRING Connection should be made using 2-conductor, shielded cable. For best signal transmission and maximum noise rejection, run cable through steel conduit (cable shield must be grounded at the monitor or power supply). For basic cable selection (between monitor and transmitter) when using a 250 ohm load resistance, use the following chart: Cable Selection Chart Wire Gauge...
  • Page 10 AMC-200 Transmitter FIGURE 2: Cable selection graph.

  • Page 11: Transmitter To Monitor Wiring

    AMC-200 Transmitter 4.3 TRANSMITTER TO MONITOR WIRING The transmitter output (–,+) terminals connect to the (SIG,+) terminals on a channel terminal block of the monitor (one transmitter per channel), as shown in FIGURE 3. Each transmitter MUST BE CONNECTED TO ITS CORRESPONDING CHANNEL to retain factory calibration. FIGURE 3: Transmitter to monitor wiring.
  • Page 12 AMC-200 Transmitter Figure 4: Interfacing to computer, datalogger or non-AMC monitor.

  • Page 13: Operation And Calibration

    5 OPERATION AND CALIBRATION 5.1 OPERATION The AMC-200 series sensor/transmitter unit is factory calibrated for the gas listed in section 2.2, Factory Settings, at the beginning of this manual. The unit should not need recalibration when first installed and powered-up, but a test for correct operation is recommended after a stabilization period of 10 minutes.

  • Page 14: Transmitter Calibration/Verification Set-Up Procedure

    AMC-200 Transmitter 5.2.2 TRANSMITTER CALIBRATION/VERIFICATION SET-UP PROCEDURE The calibration procedure may cause the monitoring equipment to give a false alarm, therefore appropriate precautions should be taken. Instructions on introducing the gas sample are included with the calibration kit manual or available separately (depending on type of gas or application).

  • Page 15: Adjustments

    AMC-200 Transmitter Figure 5: Calibration/verification set-up procedure. 5.2.3 ADJUSTMENTS For full recalibration adjustments, follow the Set-Up Procedure steps 1 to 6 inclusive. There are two adjustments to be made for recalibration, Zero and Span. Zero: When there is no gas present (clean air), the transmitter signal should be 4 mA. This is obtained by adjusting the Zero trimmer on the transmitter.

  • Page 16: Preventive Maintenance

    AMC-200 Transmitter 6 PREVENTIVE MAINTENANCE 6.1 GENERAL The sensor/transmitter 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. The unit SHOULD NOT be submerged in water or other liquids. Also, hosing and other conditions that could cause a liquid to enter the transmitter or sensor should be avoided.
  • Page 17 AMC-200 Transmitter Figure 6: Sensor replacement and wiring procedure.

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Amc-200 series

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