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AMC -1B Series User Manual

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3550423A
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: support@armstrongmonitoring.com • Website: www.armstrongmonitoring.com
____________________________________________________________________________________
AMC-1B Series Gas Monitor
AMC-1B Series
Gas Monitor
USER MANUAL
The Armstrong Monitoring Corporation
1
Copyright ©, 2025 AMC

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Summary of Contents for AMC AMC-1B Series

  • Page 1 AMC-1B Series Gas Monitor AMC-1B Series Gas Monitor USER MANUAL 3550423A Copyright ©, 2025 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: support@armstrongmonitoring.com •...

  • Page 2: Table Of Contents

    CONTACT INFORMATION ................6 MODIFICATIONS AND SUBSTITUTIONS............7 GLOSSARY ....................... 7 PRODUCT SPECIFICATIONS ................. 8 AMC-1B MONITOR .................... 8 2.1.1 AMC-1B MONITOR BUILD CODE STRUCTURE ..........9 SENSOR MODULE ..................10 2.2.1 AMC-SM-70A01 Oxygen ..................10 2.2.2 AMC-SM-91A01 Carbon Monoxide (0-100ppm) ...........10 2.2.3...
  • Page 3 AMC-1B Series Gas Monitor MENU SYSTEM – SERVICE MENU OVERVIEW .........36 4.2.8.2 MENU SYSTEM – EXTERNAL SENSOR SERVICE MENU ........37 4.2.9 4.2.9.1 EXTERNAL SENSOR SERVICE MENU OVERVIEW ........37 4.2.9.2 ANALOG SUB-MENU ...................38 4.2.9.3 SENSOR SUB-MENU ...................39 4.2.9.4 GAS LABEL ....................40 4.2.9.5...
  • Page 4 AMC-1B Series Gas Monitor LIST OF FIGURES Figure 2-1: External View ......................15 Figure 2-2: Internal View (AMC-1B24 Shown) ................16 Figure 3-1: Enclosure Mounting ....................19 Figure 3-2: Relay Connections ....................20 Figure 3-3: Wiring Diagram - 2 Wire Transmitter ...............21 Figure 3-4: Wiring Diagram, 3 Wire Transmitter ................22 Figure 3-5: Wiring Diagram, Multidrop Transmitter ..............23...
  • Page 5 LIST OF TABLES Table 3-1: Analog IN .........................21 Table 3-2: Analog IN, Multidrop Transmitters ................22 Table 3-3: Analog IN, AMC-3707 Sensor ..................23 Table 4-1: Status LEDs ......................29 Table 4-2: Service Menu Options ....................36 Table 4-3: External Sensor Menu Options .................37 Table 4-4: Analog Sub-Menu Options ..................38...

  • Page 6: General Information

    The Armstrong Monitoring Corporation will repair or replace components that prove to be defective in the opinion of AMC. Any equipment deemed to be defective by the user should be returned to The Armstrong Monitoring Corporation for evaluation (see product return below). Site visits by Armstrong personnel, to evaluate/repair equipment, are not covered by this warranty unless covered under the site contract.

  • Page 7: Modifications And Substitutions

    AMC-1B Series Gas Monitor 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. 1.6 GLOSSARY Act Delay The delay in seconds between the gas concentration reaching an alarm setpoint, and the corresponding alarm level activating.

  • Page 8: Product Specifications

    AMC-1B Series Gas Monitor 2 PRODUCT SPECIFICATIONS 2.1 AMC-1B MONITOR System System Warranty Period 2 Years (sensors excluded) 120 VAC, 60 Hz, 53 VA or Power Supply Requirement 24 VDC, 2A Relays – AMC-1B12-X 2x DPDT, 250 VAC, 10 A...

  • Page 9: Amc-1B Monitor Build Code Structure

    AMC-1B Series Gas Monitor 2.1.1 AMC-1B MONITOR BUILD CODE STRUCTURE The order code structure of the AMC-1B Series Monitor is generated based on the following SM MPN Options SM MPN ABBV. Description AMC-SM-91A01 91A01 Sensor Module, CO 0-100ppm AMC-SM-91B01 91B01...

  • Page 10: Sensor Module

    AMC-1B Series Gas Monitor 2.2 SENSOR MODULE 2.2.1 AMC-SM-70A01 Oxygen Gas Type OXYGEN (O Sensor Module Order Number AMC-SM-70A01 Detection Range 0-25% Vol. Operating Temperature -4° to 104°F (-20° to 40° C) Sensor Height Above Finished Floor 4-6 Feet (1.2-1.8m)

  • Page 11: Amc-Sm-91B01 Carbon Monoxide (0-300Ppm)

    AMC-1B Series Gas Monitor 2.2.3 AMC-SM-91B01 Carbon Monoxide (0-300ppm) Gas Type CARBON MONOXIDE (CO) Sensor Module Order Number AMC-SM-91B01 0 – 300ppm Detection Range Operating Temperature -4° to 104°F (-20° to 40° C) Sensor Height Above Finished Floor 4-6 Feet (1.2-1.8m)

  • Page 12: Amc-Sm-98A01 Nitrogen Dioxide

    AMC-1B Series Gas Monitor 2.2.4 AMC-SM-98A01 Nitrogen Dioxide Gas Type NITROGEN DIOXIDE (NO Sensor Module Order Number AMC-SM-98A01 Detection Range 0-10ppm NO Operating Temperature -4° to 104° F (-20° to 40° C) Sensor Height Above Finished Floor 4-6 Feet (1.2-1.8m)

  • Page 13: Amc-Sm-Vca01 Carbon Monoxide/Nitrogen Dioxide

    AMC-1B Series Gas Monitor 2.2.5 AMC-SM-VCA01 Carbon Monoxide/Nitrogen Dioxide Gas Type CARBON MONOXIDE (CO) NITROGEN DIOXIDE (NO Sensor Module Order Number AMC-SM-VCA01 Detection Range 0-100ppm CO 0-10ppm NO Operating Temperature -4° to 104° F (-20° to 40° C) Sensor Height Above Finished Floor 4-6 Feet (1.2-1.8m)

  • Page 14: Product Description

    AMC-1B Series Gas Monitor 2.3 PRODUCT DESCRIPTION The AMC-1B Series Gas Monitor presents the state of the gas detection system locally via the OLED display. A plug-and-play modular architecture accommodates hot-pluggable power/comms via the Bus Power Module and field replaceable Sensor Modules (eligible for the EZ Cal exchange program).

  • Page 15: External View

    AMC-1B Series Gas Monitor 2.4 EXTERNAL VIEW Figure 2-1: External View Enclosure and Lid Assembly, UV Stabilized Polycarbonate, 11.750" L x 9.980" W X 5.460" (300 x 250 x 140 mm). Enclosure: IPx5 rating with use of optional Splashguard. Digital...

  • Page 16: Internal View

    Figure 2-2: Internal View (AMC-1B24 Shown) Analog Input 1: Terminal Block for Zone 1 Input Analog Input 2: Terminal Block for Zone 2 Input (AMC-1B24 Only) Analog Output 1: Terminal Block for signal output 1 Analog Output 2: Terminal Block for signal output 2 (AMC-1B24 Only)

  • Page 17: Accessories

    AMC-1B Series Gas Monitor 2.6 ACCESSORIES The following accessories are available for use with the AMC-1B Series Gas Monitors. Accessory Description Order Code RAM3 AMC-RAM-3 RAM3 Wiring Harness - 2 AMC-RAM-1B-WH-2 Relay RAM3 Wiring Harness - 4 AMC-RAM-1B-WH-4 Relay Splashguard...

  • Page 18: Installation

    AMC-1B Series Gas Monitor 3 INSTALLATION The installation of the AMC-1B Series Gas Monitor is very important as the operational quality is a direct result of the quality of the installation. The following sections provide guidelines for installation, location and mounting, wiring, and cable selection.

  • Page 19: Figure 3-1: Enclosure Mounting

    AMC-1B Series Gas Monitor Figure 3-1: Enclosure Mounting ____________________________________________________________________________________...

  • Page 20: Wiring

    3.2.2 RELAYS The Monitor houses 2 relays for AMC-1B12 and 4 relays for AMC-1B24. The relay contacts are rated for 10Amps @ 28VDC/250VAC resistive. For relay contact arrangements, see below. Note that the default configuration is for the relays to be energized.

  • Page 21: Analog In

    AMC-1B Series Gas Monitor 3.2.3 ANALOG IN The analog input terminal blocks (see Figure 2-2) are used to connect sensor modules in voltage/current mode. The wiring for channels 1 and 2 is conveyed in Table 3-1the following tables and diagrams.

  • Page 22: Multidrop Transmitters

    AMC-1B Series Gas Monitor Figure 3-4: Wiring Diagram, 3 Wire Transmitter 3.2.3.2 MULTIDROP TRANSMITTERS The analog input terminal blocks are used for connecting 122X Sensor Modules in Voltage Mode. The wiring for channel 1 and 2 is conveyed in the following table.

  • Page 23: Amc-3707

    Figure 3-5: Wiring Diagram, Multidrop Transmitter 3.2.3.3 AMC-3707 The analog input terminal blocks can be used for connecting AMC-3707 Propane Sensor Modules in Voltage Mode. The wiring for channel 1 and 2 is conveyed in the following table. Table 3-3: Analog IN, AMC-3707 Sensor...

  • Page 24: Analog Out

    AMC-1B Series Gas Monitor Figure 3-6: Wiring Diagram, AMC-3707 3.2.4 ANALOG OUT Typically, analog output is used to communicate with a Building Automation System or control a Variable Frequency Drive within a ventilation system. The 1B series analog output supports both current mode (4-20mA) or voltage (0-10V) outputs that are proportional to the concentration of the target gas being detected.

  • Page 25: Ram3

    The AMC-RAM3 provides a remote alarm indication when employed with monitors such as the AMC 1B Series Gas Monitor. Each RAM3 has a red strobe light to provide a visual indicator of an alarm condition and remains active until the alarm is cleared. The Audio alert is provided by a buzzer which emits a 2900hz tone at more than 90 dB(A) at 24 inches.

  • Page 26: Figure 3-8: Ram3 Module

    When RAM3 Modules are planned to be powered by the 1B Monitor onboard power supply the overall power requirement of the RAM3s plus any remote Gas Transmitters must be considered to determine if a separate 24V power source is required. Refer to the RAM3 User Manual available on the AMC Website for additional information. ____________________________________________________________________________________...

  • Page 27: 4-Relay Ram3 Modification

    AMC-1B Series Gas Monitor Figure 3-9: 2 Relay RAM3 Wiring Label Figure 3-10: 4 Relay RAM3 Wiring Label 3.2.5.1 4-Relay RAM3 modification If the user wishes to have a single RAM3 that is controlled by either alarm relay it requires a slight modification.

  • Page 28: Figure 3-11 1B24 Wiring For Single Ram3 (Part A)

    AMC-1B Series Gas Monitor Figure 3-11 1B24 Wiring for Single RAM3 (Part A) Using a small flathead screwdriver, remove the positive wire from the RAM-3 Zone 2 terminal block connection. Cut to 4” and strip the end 0.25”. Use as a jumper wire to connect the Zone 2 relay alarm to the Zone 1 relay alarm.

  • Page 29: Operation

    This section details the LED states and their corresponding meanings, as well as detailing the menu system available on AMC-1B monitors. Menu flow diagrams are available in section 8 as a quick reference to those already familiar with the menu system usage.
  • Page 30 AMC-1B Series Gas Monitor LED States Network Alarm Status Sensor Module Display Screen Message • Corrupted Sensor Module Signal • Sensor Module Missing • Incorrect Sensor Module found • Sensor Module not Communicating Fault 2: Solid Blue Solid Blue Solid Blue Not indicated on Display •...

  • Page 31: Menu Overview

    AMC-1B Series Gas Monitor 4.2 MENU OVERVIEW Note that a Menu Flow Chart is available in section 8. The menu images and menu flow diagrams in this manual represent gas types with labels such as “GAS1”, “GAS2”, etc. These are mapped to specific gases based on the customer order.

  • Page 32: Menu System - Warning/Alarm Indication

    AMC-1B Series Gas Monitor If the failure condition is resolved, the main display for the failed sensor will resume normal operation by indicating the sensor reading via a bar graph. 4.2.3 MENU SYSTEM – WARNING/ALARM INDICATION When a warning or an alarm occurs, the bar graph is replaced with a large WARN indication for warnings or a large ALARM for alarms.

  • Page 33: Menu System - Fault Indication

    AMC-1B Series Gas Monitor For units configured at factory to use latched alarms, when the alarm condition is cleared the display will indicate that the relays are latched until cleared by the user by pressing the ENTER button to release the latching condition.

  • Page 34: Menu System - Detailed Sensor Screen

    AMC-1B Series Gas Monitor 4.2.5 MENU SYSTEM – DETAILED SENSOR SCREEN To access more detailed information for each sensor, press and hold the button until the following screen appears The detailed sensor screen provides several values for each sensor. Use the DOWN buttons to page through all the attached sensors (1BCO will show only a single sensor).

  • Page 35: Menu System - Detailed Status Screen

    AMC-1B Series Gas Monitor 4.2.6 MENU SYSTEM – DETAILED STATUS SCREEN To access the detailed status for each sensor, press and hold the DOWN button until the following screen appears. The detailed status screen provides the complete status for each sensor. Use the DOWN buttons to page through all the attached sensors.

  • Page 36: Menu System - Main Service Menu

    AMC-1B Series Gas Monitor 4.2.8 MENU SYSTEM – MAIN SERVICE MENU 4.2.8.1 SERVICE MENU TIMEOUT The service menus remain unlocked for a programmed timeout period (set to 5 minutes). Within that period, the service menus can be re-enabled by long-pressing the ENTER button.

  • Page 37: Menu System - External Sensor Service Menu

    AMC-1B Series Gas Monitor With ‘Exit’ highlighted (as above), press ENTER to exit the service mode and return back to the main info screen as shown below. 4.2.9 MENU SYSTEM – EXTERNAL SENSOR SERVICE MENU NOTE: The Outputs menu (available from the main service menu) is used to provide supplemental configuration options that are applicable to external sensors, beyond those in the External Sensor Service menu.

  • Page 38: Analog Sub-Menu

    AMC-1B Series Gas Monitor Exit Select this menu item to return to the main service menu. 4.2.9.2 ANALOG SUB-MENU If ‘Analog’ configuration sub-menu is activated from the sensor’s service menu when an external sensor is selected, then the display will be updated to show the following sub-menu.

  • Page 39: Sensor Sub-Menu

    AMC-1B Series Gas Monitor fault value of 1 V would lead to the sensor being found in a ‘FAIL’ state with an input voltage of less than 1 V. If ‘Fault (mA)’ is activated from the ‘Analog’ configuration sub-menu, then the display will be updated to show the following editing screen.

  • Page 40: Gas Label

    AMC-1B Series Gas Monitor Window Activate this menu item to edit the custom filter window for the selected sensor Select this menu item to return to the sensor’s service menu. The ‘Config’ Exit sub-menu will be selected when the sensor’s service menu appears.

  • Page 41: External Sensor Custom Window Average

    AMC-1B Series Gas Monitor % LEL Percent of lower explosive limit. % VOL Percent by volume. Volt Voltage. When the ENTER button is pressed, the screen will update to display the confirmation dialog (described previously). 4.2.9.6 EXTERNAL SENSOR CUSTOM WINDOW AVERAGE Window is a custom average filter for gas readings, where the averaging "window"...

  • Page 42: Override

    AMC-1B Series Gas Monitor 4.2.9.8 OVERRIDE If ‘Override’ sub-menu is activated from the external sensor’s service menu (Table 4-3), then the display will be updated to show the following sub-menu. 4.2.9.9 SIM ENABLE If ‘Sim Enable’ is activated from the ‘Override’ sub-menu, then the display will be updated to show the following editing screen.

  • Page 43: Menu System - Transmitter Service Menu

    AMC-1B Series Gas Monitor Selected ‘Exit’ from the ‘Override’ sub-menu returns the user to the sensor’s service menu with the ‘Override’ menu item selected. 4.2.10 MENU SYSTEM – TRANSMITTER SERVICE MENU If the ‘UTx’ menu item is activated from the main service menu via the...

  • Page 44: Transmitter Sensors Settings

    AMC-1B Series Gas Monitor 4.2.10.1 TRANSMITTER SENSORS SETTINGS From the UTx service menu, selecting ‘Sensors’ will update the display to show the following sub- menu. DOWN buttons can be used to navigate the list of configured sensors for the sensors sub-menu.
  • Page 45 AMC-1B Series Gas Monitor Zero Buff Select this menu item to edit the zero buffer level for the display of small gas concentrations. Cal Freq Select this menu item to edit the time period between re-calibrations Exit Select this menu item to return to the Sensors sub-menu 4.2.10.2.1 SETPOINT...

  • Page 46: Table 4-11: Calibration Frequency Configuration

    AMC-1B Series Gas Monitor When the ENTER button is pressed, the screen will update to display the confirmation dialog (described previously). If Yes is selected, the edit value is persisted as the new value for the Zero Buffer for the selected sensor. Otherwise, the edit value is rejected. In either case, the menu returns to the Sensor sub-menu menu with the ‘Zero Buff’...

  • Page 47: Transmitter Alarms Settings

    AMC-1B Series Gas Monitor 4.2.10.3 TRANSMITTER ALARMS SETTINGS From the UTx service menu, selecting ‘Alarms’ will update the display to show the following sub- menu. DOWN buttons can be used to navigate the list of menus for the Alarms sub-menu.

  • Page 48: Table 4-13: Transmitter Alarm Sub-Menu Settings

    AMC-1B Series Gas Monitor Table 4-13: Transmitter Alarm Sub-Menu Settings Menu Item Description Select this menu item to edit the alarm’s enable state Enable Select this menu item to edit the alarm’s source (i.e. from the available sensors) Source Select this menu item to edit the alarm’s input value Input Select this menu item to edit the alarm’s setpoint...

  • Page 49: Table 4-14: Alarm Input Options

    AMC-1B Series Gas Monitor When the ENTER button is pressed, the screen will update to display the confirmation dialog (described previously). 4.2.10.4.3 INPUT If ‘Input’ is activated from the alarm sub-menu, then the display will be updated to show the following editing screen.

  • Page 50: Table 4-15: Alarm Setpoint Options

    AMC-1B Series Gas Monitor The available options for ‘Level’ are listed in Table 4-15. Table 4-15: Alarm Setpoint Options Menu Item Description Alarm SP 1 Alarm setpoint 1 from the selected source Alarm SP 2 Alarm setpoint 2 from the selected source...
  • Page 51 AMC-1B Series Gas Monitor The available options for ‘Trigger’ are ‘Local’ and ‘Relay 1’ through ‘Relay 5’. If the checkbox next to the relay is checked, then that relay will activate when the associated alarm is active. Otherwise, the relay will not activate.
  • Page 52 AMC-1B Series Gas Monitor When the ENTER button is pressed while the last digit is highlighted, the screen will update to display the confirmation dialog (described previously). ____________________________________________________________________________________...

  • Page 53: Transmitter Relay Settings

    AMC-1B Series Gas Monitor 4.2.10.5 TRANSMITTER RELAY SETTINGS From the UTx service menu, selecting ‘Relays’ will update the display to show the following sub- menu. DOWN buttons can be used to navigate the list of menus for the Alarms sub-menu.

  • Page 54: Table 4-19: Relay Polarity Menu

    AMC-1B Series Gas Monitor If ‘Polarity’ is activated from the relay sub-menu, then the display will be updated to show the following editing screen. The available options for ‘Polarity’ are listed in Table 4-19. Table 4-19: Relay Polarity Menu Menu Item...

  • Page 55: Outputs

    AMC-1B Series Gas Monitor 4.2.10.6 OUTPUTS Analog output configuration is handled via the Outputs menu available from the main service menu. With the Outputs menu it is possible to configure the analog output to use multiplexed sensor sources to determine the output response; this section concludes with an example. Once...
  • Page 56 AMC-1B Series Gas Monitor To the right of each enabled gas an “M” or “A” in brackets denotes which gas concentration is The “M” indicates that the maximum supported gas used in scaling the output response. concentration of the sensor is used in scaling the output response. An “A” indicates that the gas concentration tied to the high alarm (Alarm SP 3, see section 4.2.10.1 is used as max scale in the...
  • Page 57 AMC-1B Series Gas Monitor 4.2.10.6.3 RANGE From the Outputs menu, when the ENTER button is pressed with Range selected, a sub-menu to configure the minimum and maximum analog output response will become available. The engineering unit (V or mA) displayed in the Output Min/Max menu items will reflect the analog output mode selected with the Mode menu item.

  • Page 58: Buzzer

    AMC-1B Series Gas Monitor 4.2.10.6.4 MULTIPLEXING EXAMPLE With an overview of the Outputs menu complete, it is worthwhile to show an example of how a multiplexed sensor configuration can be used to drive the analog output. In this example, the following configuration is used: •...

  • Page 59: Activation Timer

    AMC-1B Series Gas Monitor The available options for ‘Buzzer’ are listed in the following table. Table 4-21: Buzzer Menu Menu Item Description None Disable local buzzer completely Alarm Local buzzer sounds for alarm level and fault All Levels Local buzzer sounds for warning, alarm, high alarm levels, and fault 4.2.10.8 ACTIVATION TIMER...

  • Page 60: Rtc Date & Time

    AMC-1B Series Gas Monitor 4.2.10.9 RTC DATE & TIME The main service menu Date and Time items can be used to update the on-board real-time clock (RTC). The RTC runs on battery power when main power is unavailable. These menus provide a mechanism to update the date and time, for example, in the event of low battery during a power outage.

  • Page 61: Maintenance

    5.1 GENERAL The AMC-1B should be cleaned (brushed or wiped) as required, depending on the rate of accumulation of any dust or dirt. To avoid damage, the unit MUST NOT be submerged, hosed or splashed with any liquids.

  • Page 62: Calibration

    AMC-1B Series Gas Monitor 5.3 CALIBRATION Note that this section applies to onboard sensors only (the Sensor Module) and is not applicable for remote sensors or transmitters. For remote sensors refer to the applicable User Manual. Sensors naturally degrade over time, losing about 2% of their sensitivity per month. Over time a sensor will start to underreport gas concentrations, meaning that a calibration is necessary to maintain a safe environment.

  • Page 63: Pre Bump Test

    AMC-1B Series Gas Monitor 5.3.3 PRE BUMP TEST Before calibration, an “As Found” (bump test) is usually performed to ensure each sensor is in working order and returning reasonable responses. The bump test involves applying a test gas to the sensor. However, sensors such as CO have a recovery time measured in multiple hours. As a result, the calibration routine would find a zero at a concentration that is not the true background concentration, should the sensor not have sufficient recovery time.

  • Page 64: Calibration Procedure

    AMC-1B Series Gas Monitor 5.3.4 CALIBRATION PROCEDURE 5.3.4.1 Calibration Menu Navigate to the Service Menu and select the sensor to be calibrated. If the ENTER button is pressed then the following menu is shown. This menu is common to all sensors therefore selecting any sensor will produce the same menu.

  • Page 65: Table 5-2: Calibration States

    AMC-1B Series Gas Monitor Background Background serves as a label only. 000.0 Edit the current background one digit at a time using the UP DOWN buttons. Press ENTER to advance the cursor to the next digit. Press ENTER when the last digit is highlighted to save the value.

  • Page 66: Calibration Routine

    AMC-1B Series Gas Monitor When the calibration procedure completes its cycle, the result will either be a PASSED or FAILED with calibration results as shown by the following two images. CAL PASSED Zero Level : Base Level : 00 Span Level : 2 00 Orig.
  • Page 67 AMC-1B Series Gas Monitor Caution: In the case of repeated CO Gas Calibrations performed in quick succession (i.e. less than 30 minutes apart) first follow the routine outlined in section 5.3.3, Pre Bump Test. Then use the Background value provided by the unit during ADAPTiCAL startup.

  • Page 68: Sensor Module

    When the Sensor Module can no longer be calibrated, replacement is required; see section 2.2 for replacement sensor P/N. 5.4.1 SENSOR MODULE REPLACEMENT AMC-SM-xx Sensor Modules are designed to be field replaceable. When changing the sensor module, first ensure that the AMC-1B is fully powered down. 5.4.1.1 REMOVE SENSOR MODULE Detach the IPC Cable from the Sensor Module.

  • Page 69: Install Sensor Module

    AMC-1B Series Gas Monitor 5.4.1.2 INSTALL SENSOR MODULE Rotate the replacement Sensor Module so the tab aligns as shown. Push and turn clockwise until the Sensor module is secured. Attach the IPC Cable to the top connector on the Sensor Module.

  • Page 70: Troubleshooting

    AMC-1B Series Gas Monitor 6 TROUBLESHOOTING Table 6-1 Troubleshooting Table Symptom Possible How to Verify Corrective Action Cause Buzzer or Bad Connection No continuity between COM Re-seat wiring connections for Relays not to Buzzer or and NO Bus Module buzzer and relay coils.

  • Page 71: Sensor Module Default Settings

    AMC-1B Series Gas Monitor 7 SENSOR MODULE DEFAULT SETTINGS Table 7-1 Default Alarm Settings Short SM Code Long Gas Name Set Point 1 Set Point 2 Set Point 3 Name Decreasing Decreasing Decreasing Oxygen 19.5 Increasing Increasing Increasing Carbon Monoxide...

  • Page 72: Menu Flow Diagrams

    AMC-1B Series Gas Monitor 8 MENU FLOW DIAGRAMS Figure 8-1: Main Screen / Password Flow ____________________________________________________________________________________...

  • Page 73: Figure 8-2: Service Menu Flow Diagram (A)

    AMC-1B Series Gas Monitor Figure 8-2: Service Menu Flow Diagram (a) ____________________________________________________________________________________...

  • Page 74: Figure 8-3: Service Menu Flow Diagram (B)

    AMC-1B Series Gas Monitor Figure 8-3: Service Menu Flow Diagram (b) ____________________________________________________________________________________...

  • Page 75: Figure 8-4: Sensor Configuration Menu Flow Diagram

    AMC-1B Series Gas Monitor Figure 8-4: Sensor Configuration Menu Flow Diagram ____________________________________________________________________________________...

  • Page 76: Figure 8-5: Alarm Menu Flow Diagram

    AMC-1B Series Gas Monitor Figure 8-5: Alarm Menu Flow Diagram ____________________________________________________________________________________...

  • Page 77: Figure 8-6: Outputs Menu Flow Diagram

    AMC-1B Series Gas Monitor Figure 8-6: Outputs Menu Flow Diagram ____________________________________________________________________________________...

  • Page 78: Revision History

    AMC-1B Series Gas Monitor 9 REVISION HISTORY Table 9-1: Document Revision History Revision Release Date Change Description January 2025 Initial Release ____________________________________________________________________________________...