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AMC 1ACOs Instructions Manual

One channel co monitor with dsi
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AMC-1ACOs
One Channel CO Monitor with DSI
INSTRUCTIONS
Installation and Operation of the
1ACOs One Channel CO Monitor with DSI
IMPORTANT:
Please read these installation and operating instructions completely
and carefully before starting.
Filename: 3221405B.doc
Copyright © November. 2012, AMC
The Armstrong Monitoring Corporation
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

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  • Page 1 AMC-1ACOs One Channel CO Monitor with DSI INSTRUCTIONS Installation and Operation of the 1ACOs One Channel CO Monitor with DSI IMPORTANT: Please read these installation and operating instructions completely and carefully before starting. Filename: 3221405B.doc Copyright © November. 2012, AMC...

  • Page 3: Table Of Contents

    AMC-1ACOs One Channel CO Monitor with DSI TABLE OF CONTENTS Section Title Page GENERAL INFORMATION ....................1 WARRANTY ........................1 LIABILITY ........................1 PRODUCT RETURN ......................1 CONTACT INFORMATION ....................2 MODIFICATIONS AND SUBSTITUTIONS..............2 GLOSSARY........................3 PRODUCT INFORMATION....................4 PRODUCT DESCRIPTION ....................5 GENERAL DESCRIPTION .....................5 3.1.1 MONITOR FEATURES ...................5 INSTALLATION ........................8...
  • Page 4 INSTALLATION TIPS AND TRICKS ..................29 LIST OF FIGURES FIGURE 1: AMC-1ACOs, Front Cover..................6 FIGURE 2: Internal Features of the AMC-1ACOs................7 FIGURE 3: Locations of Mounting Holes..................8 FIGURE 4: Location of Power Supply Connections..............10 FIGURE 5: Relay Contact Arrangement..................11 FIGURE 6: Signal input/output terminal block.

  • Page 5: General Information

    1 GENERAL INFORMATION 1.1 WARRANTY The AMC-1ACOs One Channel CO Monitor with DSI is warranted against defects in material and workmanship for a period of two years from date of delivery. Maintenance items are not warranted. 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: Contact Information

    For information please call 1-800-465-5777 or through contacts at www.armstrongmonitoring.com or through email directly at support@armstrongmonitoring.com. 1.5 MODIFICATIONS AND SUBSTITUTIONS Due to an ongoing development program, AMC reserves the right to substitute components and change specifications at any time without incurring any obligations.

  • Page 7: Glossary

    AMC-1ACOs One Channel CO Monitor with DSI 1.6 GLOSSARY Alarm Alarm is an audible, visual, or physical presentation designed to warn the instrument user that a specific level of a dangerous gas/vapor concentration has been reached or exceeded. Calibration Calibration is the procedure used to adjust the instrument for proper response.

  • Page 8: Product Information

    AMC-1ACOs One Channel CO Monitor with DSI 2 PRODUCT INFORMATION Monitor Part Number….…………………………………. AMC-1ACOs Monitor Serial Number. ………………..………………... Monitor Warranty Period. ………………………..……… 2 years DSI Part Number…………………………………………. AMC-DSVI-91AM-NC-X DSI Serial Number. ………………..………………..DSI Warranty Period……………………………………... 2 years Sensor Warranty Period………………………………….

  • Page 9: Product Description

    3 PRODUCT DESCRIPTION 3.1 GENERAL DESCRIPTION The AMC-1ACOs One Channel CO Monitor with DSI is a single channel gas monitoring system designed to provide continuous, reliable surveillance of surrounding air for traces of CO. The DSI has an optional VFD output for signaling and/or powering a VFD controller, refer to section x for more.

  • Page 10: Figure 1: Amc-1Acos, Front Cover

    AMC-1ACOs One Channel CO Monitor with DSI 11. PROGRAMMING DIP Allows user to configure the alarm delay and timer SWITCHES: circuits, audio alarm activation, sensor mode selection, fault threshold, and acknowledge switch function 12. RELAYS: 2 alarm DPDT relays are provided 13.

  • Page 11: Figure 2: Internal Features Of The Amc-1Acos

    AMC-1ACOs One Channel CO Monitor with DSI 11. PROGRAMMING 8. RELAY SETUP DIP SWITCHES JUMPERS (UNDER PCB) 9. TEST SWITCH 14. ON-BOARD CO SENSOR 10. TRIP POINT ADJUSTMENT 7. AUDIO ALARM CHANNEL 1 INDICATOR SENSOR Sensor 1 TP22 5. TRANSFORMER (UNDER PCB) 6.

  • Page 12: Installation

    AMC-1ACOs One Channel CO Monitor with DSI 4 INSTALLATION Follow the guidelines in this section for proper locations and installation of the AMC-1ACOs. In addition to these instructions, ensure installation is compliant with local building and electrical codes. This section covers topics related to installation location, mounting, cable selection, and wiring instructions the AMC-1ACOs.

  • Page 13: Wiring

    10Amps@250VAC resistive. For relay contact arrangement, see Figure 5. The AMC-1ACOs is shipped with relays factory configured per customer order, typically as de- energized in the non-alarm state. If the user prefers to have relays in a normally energized (failsafe) state see section 5.1.2 for jumper configuration.

  • Page 14: Figure 4: Location Of Power Supply Connections

    AMC-1ACOs One Channel CO Monitor with DSI CHANNEL 1 SENSOR Sensor 1 TP22 CHANNEL 1 CHASSIS GND AC PRIMARY 120 VAC, 60 Hz NEUT. FIGURE 4: Location of Power Supply Connections.

  • Page 15: Cable Selection

    AMC-1ACOs One Channel CO Monitor with DSI FIGURE 5: Relay Contact Arrangement. 4.2.2 CABLE SELECTION Connections from monitor are made through the DSI interface board. Connections should be made using shielded, 2 or 3-conductor cable (depending on BAS or VFD output). For best signal transmission and maximum noise rejection, use twisted pair, and run cable through steel conduit (cable shield must be grounded at the monitor).

  • Page 16: On-Board Sensor Connection

    DSI and lightly push the sensor on to the DSI. Sensors need to be calibrated at regular intervals, see 5.6.3 AMC-DSI CALIBRATION for procedure. Sensor replacement is needed when the sensor life has expired; see 6.3 SENSOR REPLACEMENT for details.

  • Page 17: Figure 7: Building Automation Wiring

    AMC-1ACOs One Channel CO Monitor with DSI TABLE 1: Building Automation Wiring Gas Monitor (DSI) Building Automation System Negative “-“ → Negative “-“ 4-20mA signal output 4-20mA out → 4-20mA signal input 4-20mA in Positive “+” → Not applicable 4-20mA signal input 4-20mA in →...

  • Page 18: Vfd Wiring

    AMC-1ACOs One Channel CO Monitor with DSI  VFD Wiring When a DSI board is equipped with the VFD option, connectors J4 and J2 are installed. Refer to Figure 10 for a detailed layout of the DSI board. The VFD signal and external power is wired through J4;...

  • Page 19: Operation And Calibration

    1A; see Figure 2, item 12. Each DIP-switch can be set to OFF (left position) or ON (right position) depending on functions required. Positions shown in Bold are typical settings for the AMC-1ACOs. CAUTION TURN OFF THE MAIN POWER SUPPLY BEFORE REMOVING THE DSI BOARD TO MODFIY DIP SWITCHES.
  • Page 20 AMC-1ACOs One Channel CO Monitor with DSI Switch Feature Position Description Sensors Only channel 1 enabled. With two sensor/channels (SW1-6 Off) and one group of SW1-7 Two Zone relays (SW1-8 On), this dipswitch configures the two Enabled relays of group 1 to function as warning and alarm for a...

  • Page 21: Alarm Relay Programming

    AMC-1ACOs One Channel CO Monitor with DSI Switch Feature Position Description Sensor Fault thresholds set at 1.4 mA into 250R or 350mV. SW2-5 Activation No activation delay of Warning / S1 alarm conditions. Delay, Five minute delay on activation of Warning (2-threshold)

  • Page 22: Gas Monitor Interface Configuration

    AMC-1ACOs One Channel CO Monitor with DSI Sensor Status Output Sensor Fault short, slow beeps Notes: 1) Micro-controller operation ensures that Warning, Alarm and Fault conditions will not occur simultaneously on the same sensor. 5.1.4 GAS MONITOR INTERFACE CONFIGURATION The input interface is factory pre-configured for proper operation of the DSI board. Figure 9 is included as a guide for troubleshooting purposes as the jumpers must be strapped as indicated in Table 5.

  • Page 23: Dsi Interface Configuration

    With the signal input configuration as shown in Table 5, the Gas Monitor board is correctly configured for the DSI board. The AMC-DSI is factory pre-configured as per order; the required interface is configured by dip switch settings found in Table 6. Figure 10 illustrates the layout of the DSI board, while Table 7 gives detailed descriptions of the dip switch settings found in Table Positions shown in Bold are typical settings for the AMC-1ACOs.

  • Page 24: Table 7: Detailed Descriptions Of Dip Switch Settings

    100R input resistance. If an external transmitter is configured for a voltage output (non 4-20mA signal) ie. AMC multidrops, the 10K input resistance setting is required. Configures the input required to interpret the signal from the external Input Selector for transmitter employed.

  • Page 25: Power-On Delay

    5.1.9 ALARM/WARNING RELAY ACTIVATION DELAYS The AMC-1ACOs has a user configurable option of 5 min activation time delays for the WARNING and ALARM relay contacts. The activation time delays can help prevent short cycling WARNING/ALARM in some applications. The delays can be enabled by turning ON switches SW2-5 and SW2-6, for WARNING/ALARM respectively.

  • Page 26: Calibration

    Gas sensors need to be calibrated and periodically checked to ensure sensor accuracy and system integrity. The AMC-1ACOs series comes factory calibrated and does not need to be adjusted as part of installation. Calibration of the CO sensor is recommended two times per year and all peripherals and/or relays should be checked twice a year.

  • Page 27: Equipment Required

    AMC-1ACOs One Channel CO Monitor with DSI NOTE: THE DSI BOARD IS REMOVED TP22 JB10 FIGURE 11: AMC-1ACOs Test Points and Trimpots.  Equipment Required  Digital multimeter with a minimum display range of 0 to 10.0 VDC.  Miniature screwdriver or trimmer adjustment tool.

  • Page 28: Amc-Dsi Calibration

    For sensor 1, RV5 would be adjusted so that 0.8V is measured at TP5. 5.2.2 AMC-DSI CALIBRATION Every AMC-DSI Sensor is factory calibrated, so each unit should be ready for operation after installation and a 30 minute stabilization time. Calibration is recommended two times per year and all peripherals and/or relays should be checked twice a year.

  • Page 29: Figure 12: Amc-1Acos Test Points And Trimpots

    AMC-1ACOs One Channel CO Monitor with DSI DIGITAL MULTIMETER BLACK (-) LEAD MAIN BOARD CHANNEL 1 RED (+) LEAD SENSOR Sensor 1 TP22 CHANNEL 1 FIGURE 12: AMC-1ACOs Test Points and Trimpots. TABLE 9: DSI board Test points (use a voltmeter with greater than 100K input resistance)

  • Page 30: On Site Calibration Equipment Required

    Refer to Section 5.2.1.2 for trip threshold adjustment 3. Apply a Zero gas sample, with a calibration adapter cup firmly and completely over the sensor on the AMC-DSI for 2 minutes with a flow rate of .5 liters per minute.

  • Page 31: Vfd Calibration

    TP4 (GND) and connecting positive (red) lead to TP1 (VFD). 3. Apply the desired gas concentration, with a calibration adapter cup firmly and completely over the sensor on the AMC-DSI for 2 minutes with a flow rate of .5 liters per minute.

  • Page 32: Preventive Maintenance

    AMC-1ACOs One Channel CO Monitor with DSI 6 PREVENTIVE MAINTENANCE This section covers all aspects of the AMC-1ACOs. First, a description of general maintenance is given followed by a verification of operation and sensor replacements. 6.1 GENERAL The monitor unit should be brushed or wiped clean, once a year or more, of any dust or dirt that settles on it, depending on the accumulation.

  • Page 33: Installation Tips And Tricks

    AMC-1ACOs One Channel CO Monitor with DSI 7 INSTALLATION TIPS AND TRICKS CABLING  Cabling – use 2-3 conductor cable, depending if BAS and/or VFD output is utilized. Generally, 18 gauge conductors are used (not true in all cases). Shielded wires are used to connect all gas sensors.

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