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Armstrong AMC-210 Series Instructions Manual

210 series transmitter with external electrochemical sensor
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Installation and Operation of the
AMC-210 Series Transmitter with
External Electrochemical Sensor
IMPORTANT:
Please read these installation and operating instructions completely
and carefully before starting.
Filename:
Manual_amc210_trx w external electrochemical sensor.doc
215 Colonnade Road South, Ottawa, Ontario, Canada K2E 7K3
Tel: (613) 225-9531 • Fax: (613) 225-6965 • Canada & U.S. Toll Free: 1-800-465-5777
E-mail: gas@armstrongmonitoring.com • Internet: www.armstrongmonitoring.com
210 Series
Transmitter with External
Electrochemical Sensor
INSTRUCTIONS
The Armstrong Monitoring Corporation
Revised, Nov.2012
Copyright ©, Feb. 2004, AMC

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Summary of Contents for Armstrong AMC-210 Series

  • Page 1 210 Series Transmitter with External Electrochemical Sensor INSTRUCTIONS Installation and Operation of the AMC-210 Series Transmitter with External Electrochemical Sensor IMPORTANT: Please read these installation and operating instructions completely and carefully before starting. Filename: Revised, Nov.2012 Manual_amc210_trx w external electrochemical sensor.doc Copyright ©, Feb.
  • Page 2 NOTE This page intentionally left blank.

  • Page 3: Table Of Contents

    AMC-210 Transmitter with external electrochemical sensor TABLE OF CONTENTS Section Title Page WARRANTY......................3 LIABILITY......................3 PRODUCT RETURN ..................3 MODIFICATIONS AND SUBSTITUTIONS............3 PRODUCT INFORMATION..................4 SENSOR/TRANSMITTER.................. 4 FACTORY CALIBRATION ................. 5 HOUSING OPTIONS ..................6 INSTALLATION ....................... 7 LOCATION AND MOUNTING................
  • Page 4 AMC-210 Transmitter with external electrochemical sensor NOTE This page intentionally left blank.

  • Page 5: Warranty

    In no event shall Armstrong Monitoring, its officers, directors, employees, agents or servants be liable to the buyer or any other party for...

  • Page 6: Product Information

    AMC-210 Transmitter with external electrochemical sensor 2 PRODUCT INFORMATION The AMC-210 series sensor/transmitter is designed to provide continuous, reliable surveillance of surrounding air for traces of a specific hazardous gas(es) (listed in section 2.2). This unit provides a 4 to 20 mA, variable current signal, which is proportional to the gas concentration detected.

  • Page 7: Factory Calibration

    Zero Gas, at 4 mA Signal…………….………………..……. Gas Concentration at 20 mA Signal……………………….. Calibration Adapter Part Number…………………………… Note: All Armstrong Monitoring systems must be installed and maintained according to instructions to assure proper operation. Only qualified technicians should install and maintain the equipment.

  • Page 8: Housing Options

    AMC-210 Transmitter with external electrochemical sensor 2.3 HOUSING OPTIONS The AMC-210 series sensor/transmitter units are available in the housings shown in Figure 1. The explosion proof transmitter housing is rated explosion proof for Class 1, Groups B, C and D locations and can have a corrosion resistant finish (optional).

  • Page 9: Installation

    AMC-210 Transmitter with external electrochemical sensor 3 INSTALLATION 3.1 LOCATION AND MOUNTING Mount the sensor/transmitter 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.

  • Page 10: Cable Selection And Wiring

    AMC-210 Transmitter with external electrochemical sensor 3.2 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 must be grounded at the monitor or power supply). Supply voltage can be measured at the transmitter (–, +) connections at the supply source.
  • Page 11 AMC-210 Transmitter with external electrochemical sensor FIGURE 3: Cable selection graph...

  • Page 12: Transmitter To Monitor Wiring

    AMC-210 Transmitter with external electrochemical sensor 3.2.1 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 4. Each transmitter MUST BE CONNECTED TO ITS CORRESPONDING CHANNEL to retain factory calibration of the trip points.

  • Page 13: Interfacing To Computer, Datalogger, Or Non-Amc Monitor

    AMC-210 Transmitter with external electrochemical sensor 3.2.2 INTERFACING TO COMPUTER, DATALOGGER, OR NON-AMC MONITOR All Armstrong sensor/transmitters can be connected to computers or data loggers through analog-to-digital converters or to non-AMC monitors. The transmitter output (–, +) terminals connect to a filtered 12 to 30 VDC power supply through field wiring, as shown in Figure 5.

  • Page 14: Operation And Calibration

    4 OPERATION AND CALIBRATION 4.1 OPERATION The AMC-210 series sensor/transmitter is factory calibrated for the gas listed in section 2.2 at the beginning of this manual. The sensor/transmitter should not need re-calibration when first installed and powered up, but a test for correct operation is recommended after a stabilization period of 10 minutes.

  • Page 15: Equipment Required

    AMC-210 Transmitter with external electrochemical sensor 5. Extended warranty calibration program For all above options, please contact AMC for details. 4.2.1 EQUIPMENT REQUIRED  Digital multimeter with a minimum display range of 20.0 mA.  Remote calibration lead provided with the transmitter, available from AMC. ...

  • Page 16: Recalibration

    AMC-210 Transmitter with external electrochemical sensor RECALIBRATION For full recalibration adjustments, follow the Set-Up procedure steps 1 to 9 inclusive. There are two adjustments to be made for periodic recalibration: Zero and Span. Zero: While there is no gas present (clean air), the transmitter output signal current should read 4 mA.

  • Page 17: Preventive Maintenance

    It is recommended that the sensor/transmitter be calibrated a minimum of twice a year. For highly demanding applications, more frequent verification is recommended. As mentioned, Armstrong Monitoring offers a number of different maintenance plans to suit your requirements see section 4.2.
  • Page 18 AMC-210 Transmitter with external electrochemical sensor FIGURE 7: Sensor replacement and wiring procedure.

  • Page 19: Addendum (For Oxygen Only)

    AMC-210 Transmitter with external electrochemical sensor 6 ADDENDUM (FOR OXYGEN ONLY) This AMC-210 Series (2-wire sensor/transmitter with external electrochemical sensor) has been modified and the following information replaces the terminal block & sensor wiring of Figures 4, 5, 6, and 7.

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