AMC 1ACOs Instructions Manual Download Page 18 | Manualshive

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AMC 1ACOs Instructions Manual Download Page 18

AMC-1ACOs One Channel CO Monitor with DSI

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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; while the optional additional transformer is factory installed through J2. Figure 8
shows a detail description of the VFD connector (J4). When the additional transformer is not
employed there will not be a 24VAC voltage on pin 1 of J4.

PIN DESCRIPTION

1

24VAC Power Output to VFD

2

Chassis Ground

3

Signal Ground, “-“

4

Signal Output (Current or Voltage)

FIGURE 8: VFD Connecter (J4)

1

J4

2 3 4

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Summary of Contents for 1ACOs

Page 1: ...llation and operating instructions completely and carefully before starting Filename 3221405B doc Copyright November 2012 AMC The Armstrong Monitoring Corporation 215 Colonnade Road South Ottawa Ontar...

Page 2: ......

Page 3: ...TION AND CALIBRATION 15 5 1 OPERATION 15 5 1 1 DIP SWITCH PROGRAMMING 15 5 1 2 ALARM RELAY PROGRAMMING 17 5 1 3 AUDIO ALARMS 17 5 1 4 GAS MONITOR INTERFACE CONFIGURATION 18 5 1 5 DSI INTERFACE CONFIGU...

Page 4: ...onitor signal input configuration jumpers 18 FIGURE 10 DSI Layout 19 FIGURE 11 AMC 1ACOs Test Points and Trimpots 23 FIGURE 12 AMC 1ACOs Test Points and Trimpots 25 LIST OF TABLES TABLE 1 Building Aut...

Page 5: ...ease call 1 800 465 5777 1 2 LIABILITY All AMC products must be installed and maintained according to instructions Only qualified personnel should install and maintain the equipment AMC shall have no...

Page 6: ...77 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 reserve...

Page 7: ...1A Gas Monitor Gas Concentration Gas Concentration is measured PPM PPM Parts Per Million 1 volume 10 000PPM Span Full range of a sensor i e a CO sensor with a full scale of 0 100 PPM has a 100 PPM sp...

Page 8: ...ng Pressure Ambient atmospheric pressure Relative Humidity 0 95 non condensing Alarm Trip Points Signal Input Configuration Part No Serial No Type of Gas Warning Alarm Full Scale On board Ch1 91AM CO...

Page 9: ...arm concentrations are indicated in Section 2 4 POWER TERMINAL BLOCK For line voltage connections of 120 VAC 60 Hz 5 TRANSFORMER A step down transformer powers the internal circuitry and remote sensor...

Page 10: ...oard CO sensor signal in and a 4 20mA signal out 14 ON BOARD CO SENSOR Sensor allows local detection of CO gas 15 SIGNAL INPUT OUTPUT TERMINAL BLOCK 1 2 3 4 5 6 Allows connection to transmitter input...

Page 11: ...R PCB 11 PROGRAMMING DIP SWITCHES 8 RELAY SETUP JUMPERS 6 INTERNAL WIRING HEADER 4 POWER TERMINAL 14 ON BOARD CO SENSOR 15 SIGNAL INPUT OUTPUT TERMINAL BLOCK 12 RELAYS BLOCK RV6 RV5 TP6 TP5 TP4 Sensor...

Page 12: ...or water spray Install in an area where the local concentration of gas is unaffected by the presence of ventilation systems and away from sources of interference gases Mount the monitor where the uni...

Page 13: ...th the monitor Ice Cube DPDT relays are used Two of the relays are set for different alarm conditions and the optional third relay is a Fault relay The contacts are rated for 10Amps 250VAC resistive F...

Page 14: ...1ACOs One Channel CO Monitor with DSI 10 AC PRIMARY 120 VAC 60 Hz NEUT HOT CHASSIS GND RV6 RV5 TP6 TP5 TP4 Sensor 1 TP22 GND RV4 CHANNEL 1 SENSOR CHANNEL 1 FIGURE 4 Location of Power Supply Connectio...

Page 15: ...conduit cable shield must be grounded at the monitor For basic selection of cable size and length between monitor and BAS it is recommended to use 20 16AWG wire on a distance no longer than 2500 4 2 3...

Page 16: ...installation hold the sensor in such a way that the sensing area is not covered Align the sensor pins with pin sockets on the DSI and lightly push the sensor on to the DSI Sensors need to be calibrate...

Page 17: ...4 20mA in Positive Not applicable 4 20mA signal input 4 20mA in Not applicable Chassis ground CGND Connect to shield of cable CGND Signal ground Not applicable NOTE MAXIMUM LOAD RESISTANCE IS 500 OHMS...

Page 18: ...external power is wired through J4 while the optional additional transformer is factory installed through J2 Figure 8 shows a detail description of the VFD connector J4 When the additional transforme...

Page 19: ...Alarms until Acknowledge Latching Relays ON Once activated warning and alarm relays remain activated latched until activation condition has been removed minimum run timer has expired and the Acknowled...

Page 20: ...l Alarm relay may be activated as a result of fault detection on either channel see SW2 1 SW1 8 Enable One group of Relays ON Only the first group of relays Warning J2 2 and Alarm J2 3 and Fault J2 4...

Page 21: ...mally de energized with the jumper straps identified in Table 3 WARNING and ALARM Relay Active State and shown in Figure 2 item 8 Typically the normally de energized position is employed activating th...

Page 22: ...poses as the jumpers must be strapped as indicated in Table 5 Note V equals 22 volts TABLE 5 Signal input configuration jumper selection SENSOR 1 SENSOR 2 SIGNAL INPUT CONFIGURATION JB 8 TERMINATION J...

Page 23: ...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 6 Positions shown in Bold ar...

Page 24: ...nel This setting is dependant on the selection of an external transmitter and if the input is voltage or current driven When a external 4 20mA transmitter is employed the setting must be set for a 100...

Page 25: ...arm off for 30 minutes If any WARNING ALARM or FAULT condition remains after 30 minutes the audio alarm will again be activated Any WARNING ALARM or FAULT condition returning to normal and then reacti...

Page 26: ...rp at 800 465 5777 or service armstrongmonitoring com The monitor should not need re calibration when first installed and powered up but a test for correct operation is recommended after a stabilizati...

Page 27: ...lds are adjusted to with the trimpots Valarm Calarm Cfull scale IRange Ibase Rtermination KGas Monitor 1A Where Valarm The voltage measured at the alarm test point while adjusting the alarm trimpot Ca...

Page 28: ...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...

Page 29: ...URE 12 AMC 1ACOs Test Points and Trimpots TABLE 9 DSI board Test points use a voltmeter with greater than 100K input resistance TP Title Usage 1 VFD Provides a voltage representation of the VFD output...

Page 30: ...Open the front cover on the AMC 1ACOs enclosure 2 Attach the multi meter as shown in Figure 12 Connect negative black lead to TP22 main board Connect positive red lead to TP4 main board To set the ze...

Page 31: ...adjusted to full scale 10V on a partial channel scale ie 50PPM Refer to Figure 10 for DSI Layout to perform the following calibration procedure 1 Open the front cover on the AMC 1ACOs enclosure 2 Mea...

Page 32: ...fy the audio and WARNING and ALARM relays are operational 6 3 SENSOR REPLACEMENT The sensor should be replaced when the sensor no longer adequately responds to test gas Refer to the corresponding cali...

Page 33: ...Ensure that there are no short or open circuits in the sensor cabling Verify that there is no AC or DC voltage present on the sensor cabling prior to connecting the cabling to either the sensor or the...

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