AMC AMC-1BXX User manual

AMC-1BXX
Standalone Monitor
USER MANUAL
Copyright ©, 2022 AMC
The Armstrong Monitoring Corporation
215 Colonnade Road South, Ottawa, Ontario, Canada K2E 7K3
Tel: (613) 225- Fax: (613) 225- Canada & U.S. Toll Free: 1-800-465-5777
E-mail: supportWebsite: www.armstrongmonitoring.com

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TABLE OF CONTENTS
1GENERAL INFORMATION......................................................................................6
1.1 WARRANTY.......................................................................................................6
1.2 LIABILITY...........................................................................................................6
1.3 PRODUCT RETURN .........................................................................................6
1.4 CONTACT INFORMATION................................................................................6
1.5 MODIFICATIONS AND SUBSTITUTIONS.........................................................7
1.6 GLOSSARY .......................................................................................................7
2PRODUCT SPECIFICATIONS.................................................................................8
2.1 AMC-1BXX MONITOR.......................................................................................8
2.2 SENSOR MODULE............................................................................................9
2.2.1 Carbon Monoxide (AMC-1BCO Monitor)............................................................... 9
2.2.2 Carbon Monoxide/Nitrogen Dioxide (AMC-1BVC Monitor).................................... 9
3PRODUCT DESCRIPTION ....................................................................................10
3.1 EXTERNAL VIEW............................................................................................11
3.2 INTERNAL VIEW.............................................................................................12
3.3 ACCESSORIES...............................................................................................13
3.3.1 UTx Calibration Kit...............................................................................................13
4INSTALLATION .....................................................................................................14
4.1 MONITOR MOUNTING....................................................................................14
4.2 WIRING............................................................................................................16
4.2.1 POWER SUPPLY................................................................................................16
4.2.2 RELAYS ..............................................................................................................16
4.2.3 ANALOG OUT.....................................................................................................17
4.2.4 RAM3 ..................................................................................................................17
5OPERATION ..........................................................................................................18
5.1 STATUS LEDS.................................................................................................18
5.2 MENU OVERVIEW..........................................................................................20
5.2.1 Menu System Normal Operation.......................................................................20
5.2.2 Menu System Failed Sensor.............................................................................20
5.2.3 Menu System Warning/Alarm Indication ...........................................................21
5.2.4 Menu System Detailed Sensor Screen..............................................................22
5.2.5 Menu System Detailed Status Screen...............................................................23
5.2.6 Menu System Password Entry..........................................................................23
5.2.7 Menu System Main Service Menu.....................................................................24
5.2.8 Menu System Service Menu..............................................................................24
5.2.9 Menu System Sensor Service Menu.................................................................25
5.2.10 Menu System Transmitter Service Menu ..........................................................28
5.2.10.1 TRANSMITTER SENSOR SETTINGS..........................................................29
5.2.10.2 TRANSMITTER ALARM SETTINGS ............................................................32
5.2.10.3 TRANSMITTER RELAY SETTINGS.............................................................37
5.2.10.4 BUZZER.......................................................................................................39
5.2.10.5 ACTIVATION TIMER....................................................................................39
5.3 CALIBRATION.................................................................................................40
5.3.1 REQUIRED EQUIPMENT; EZ Cal EXCHANGE PROGRAM...............................40
5.3.2 REQUIRED EQUIPMENT; ON-SITE SENSOR MODULE CALIBRATION...........40

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5.3.3 PRE BUMP TEST................................................................................................41
5.3.4 CALIBRATION PROCEDURE .............................................................................42
5.3.4.1 Calibration Menu...........................................................................................42
5.3.4.2 Calibration Routine.......................................................................................44
6MAINTENANCE.....................................................................................................46
6.1 GENERAL........................................................................................................46
6.2 SCHEDULED CALIBRATION..........................................................................46
6.3 SENSOR MODULE..........................................................................................46
6.3.1 SENSOR MODULE REPLACEMENT..................................................................46
6.3.1.1 REMOVE SENSOR MODULE......................................................................46
6.3.1.2 INSTALL SENSOR MODULE.......................................................................47
6.4 VERIFICATION OF OPERATION....................................................................48
6.4.1 SIMULATION OF GAS LEVELS..........................................................................48
6.4.2 LED/RELAY ACTIVATION TEST.........................................................................49
7TROUBLESHOOTING ...........................................................................................50
8SENSOR MODULE DEFAULT SETTINGS............................................................52
9MENU FLOW DIAGRAMS.....................................................................................53

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LIST OF FIGURES
Figure 3-1: External View..........................................................................................................11
Figure 3-2: Internal View...........................................................................................................12
Figure 3-3: Sensor Module Calibration Kit.................................................................................13
Figure 4-1: Enclosure Mounting ................................................................................................15
Figure 4-2: Relay Connections..................................................................................................16
Figure 4-3: RAM3 Module.........................................................................................................17
Figure 6-1: Disconnect Sensor Module .....................................................................................47
Figure 6-2: Installing Sensor Module.........................................................................................47
Figure 9-1: Main Screen / Password Flow.................................................................................53
Figure 9-2: Sensor Service Menu Flow Diagram.......................................................................54
Figure 9-3: Service Menu Flow Diagram...................................................................................55
Figure 9-4: Sensor Configuration Menu Flow Diagram..............................................................56
Figure 9-5: Alarm Menu Flow Diagram......................................................................................57

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LIST OF TABLES
Table 5-1: Status LEDs.............................................................................................................18
Table 5-2: Service Menu Options..............................................................................................24
Table 5-3: Sensor Service Menu Options..................................................................................25
Table 5-4: Transmitter Service Menu Options...........................................................................28
Table 5-5: Sensor Module Configuration Menu.........................................................................29
Table 5-6: Sensor Alarm Configuration.....................................................................................30
Table 5-7: Calibration Frequency Configuration........................................................................31
Table 5-8: Transmitter Alarm Settings.......................................................................................32
Table 5-9: Transmitter Alarm Sub-Menu Settings......................................................................33
Table 5-10: Alarm Input Options ...............................................................................................34
Table 5-11: Alarm Setpoint Options ..........................................................................................35
Table 5-12: Alarm Type Options ...............................................................................................35
Table 5-13: Relay Menu............................................................................................................37
Table 5-14: Relay Sub-Menu ....................................................................................................37
Table 5-15: Relay Polarity Menu...............................................................................................38
Table 5-16: Buzzer Menu..........................................................................................................39
Table 5-17: Calibration Menu....................................................................................................42
Table 5-18: Calibration States...................................................................................................43
Table 7-1 Troubleshooting Table ..............................................................................................50
Table 8-1: Default Alarm Settings..............................................................................................52
Table 8-2: Default Sensor Module Settings...............................................................................52

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1GENERAL INFORMATION
1.1 WARRANTY
The AMC-1BXX Gas Monitor 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. 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 site contract. AMC is not liable for auxiliary interfaced equipment,
nor for consequential damage. This warranty shall not apply to any product, which has been
modified in any way, which has been repaired by any other party other than a qualified technician
or authorized AMC representative, or when failure is due to misuse or conditions of use.
Note: extended warranty and mail in calibration programs are available (please call 1-800-465-
5777) or see our contacts page at www.armstrongmonitoring.com
1.2 LIABILITY
All AMC products must be installed and maintained according to instructions. Only qualified
personnel should install and maintain the equipment. The AMC-1BXX Gas Monitor must not be
located in hazardous locations where combustible gases could be 100% LEL(potentially explosive
environments).
AMC shall have no liability arisingfrom auxiliary interfaced equipment, for consequential damage,
or the installation and operation of this equipment. AMC shall have no liability for labor or freight
costs, or any other costs or charges in excess of the amount of the invoice for the products.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,
AND SPECIFICALLY THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE
DESCRIPTION ON THE FACE THEREOF.
1.3 PRODUCT RETURN
All products returned for warranty or service should be shipped by prepaid freight and will be
accepted only with RMA or repair number issued by AMC. All products returned to the client will
be shipped by freight collect.
1.4 CONTACT INFORMATION
For information please call 1-800-465-5777, visit www.armstrongmonitoring.com or email
directly [e-mail].

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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.
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.
Calibration
Gas
Calibration Gas is a gas of known concentration(s) used to set the instrument
span.
Gas
Concentration
Gas Concentration is measured in:
•PPM
•%LEL
•% Volume
Hysteresis
A user specified difference, or delta, from an alarm setpoint. Used to prevent
undesired repeated toggling of alarm activation. The concentration must return
above/below the setpoint +/hysteresis (based on a decreasing or increasing
alarm type) before an alarm level can become inactive. Hysteresis does not
affect the activation (only de-activation) of an alarm, which is based solely on
the alarm setpoint.
LEL
Lower explosive limit is the lowest concentration (percentage) of a gas or a
vapor in air capable of combusting in the presence of an ignition source (arc,
flame, heat).
Min Run
The minimum time in seconds that an alarm level will remain active, even if the
gas concentration has returned above/below the setpoint +/hysteresis(based
on a decreasing or increasing alarm type).
PPM
Parts Per Million (1% volume = 10,000PPM)
Percent by
volume
Concentration of gas in a mixture expressed as a percentage of total volume.
Span
Full range of a sensor i.e. a CO sensor with a full range of 0-100 PPM has a
100 PPM span.
T90
Response Time in seconds to achieve 90% gas concentration reading. This a
typical calibration point that allows for sensor aging, but tends to be less
accurate than a T99 calibration,
T99
Response Time in seconds to achieve 99% gas concentration reading. This is
a more accurate calibration point.
Zero
Buffering
Zero buffering is transmitter function which forces the gas concentration
reading to zero when sensor is exposed to low concentration of a gas. The
zero buffer is indicated in the sensor specification.
Zero Gas
Zero gas is gas in which the target gas is not present. The presence of oxygen
is required. Clean air is an excellent source for zero calibration. A known gas
concentration can be entered during zero calibration.

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2PRODUCT SPECIFICATIONS
2.1 AMC-1BXX MONITOR
System
System Warranty Period
2 Years
Power Supply Requirement
120 VAC, 60 Hz, 53 VA
Relays (2)
DPDT, 250 VAC, 10 A
Operating Temperature
-4° to 104°F (-20° to 40° C)
Operating Pressure
0.9 to 1.1 atm
Humidity Range
15 to 90% RH, non-condensing
Terminal Block Torque
7 inch-pounds (0.8 N-m)
Analog Out
Topology
Sourcing
Voltage Range
0-10 V
Current Range
0-20 mA
Corner Frequency
300 KHz
Analog In
Voltage Range
0-30 V
Current Range
0-20 mA
Corner Frequency
250 KHz
Real Time Clock (RTC)
Battery Size
LR44 (or equivalent)
Expected Life
> 2 years

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2.2 SENSOR MODULE
2.2.1 Carbon Monoxide (AMC-1BCO Monitor)
Gas Type
CARBON MONOXIDE (CO)
Sensor Module Order Number
AMC-SM-91A01
Detection Range
0 100ppm
Operating Temperature
-4° to 104°F (-20° to 40° C)
Sensor Height Above Finished Floor
(as part of Gas Monitor)
4-6 Feet (1.2-1.8m)
Sensor Life
Up to 6 Years
Sensor Warranty
3 Years
Zero Buffering of Display
<5ppm
Calibration Kit Part Number
AMC-C1-FM1
Recommended Calibration Gas
100ppm CO
Gas Flow Rate
0.176 cfm (0.5L/min)
2.2.2 Carbon Monoxide/Nitrogen Dioxide (AMC-1BVC Monitor)
Gas Type
CARBON MONOXIDE (CO)
NITROGEN DIOXIDE (NO2)
Sensor Module Order Number
AMC-SM-VCA01
Detection Range
0-100ppm CO
0-10ppm NO2
Operating Temperature
-4° to 104° F (-20° to 40° C)
Sensor Height Above Finished Floor
(as part of Digital Transmitter)
4-6 Feet (1.2-1.8m)
Sensor Life
Up to 6 years CO
Up to 2 years NO2
Sensor Warranty
2 Years
Zero Buffering of Display
<5ppm CO
<0.5ppm NO2
Calibration Kit Part Number
AMC-C1-FM1
Recommended Calibration Gas
100ppm CO
10ppm NO2
Gas Flow Rate
0.01765 cfm (0.5L/min)

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3PRODUCT DESCRIPTION
The AMC-1BXX Gas Monitors are designed to provide continuous, reliable monitoring of ambient
air for the target gas(es) via onboard sensor module.
The Monitor provides a digital representation of the gas concentration, this information is
displayed locally via OLED. Plug-and-play modular architecture accommodates; hot-pluggable
Power/Comms via the BusPower Module and field replaceable Sensor Modules (eligible for the
EZ-CAL exchange program).
In addition, each Monitor features alarm / system status indicators, audible feedback, 2 relays, 2
analog outputs and color-coded connection terminal blocks, as listed and described herein.
NOTE: The AMC-1BXX is a variant of our UTx platform. As such many of the menu items directly
reference the parent product.

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3.1 EXTERNAL VIEW
1. Enclosure:
Enclosure and Lid Assembly, UV Stabilized Polycarbonate, 11.750" L x 9.980" W X 5.460" (300 x
250 x 140 mm)
2. Digital Display:
Displays gas concentration & Status information
3. Network Status LED:
Not applicable to 1BXX series
4. Alarm Status LED:
The Sensor Status LED will show the same error code that is being communicated by the Sensor
Module(s) or display the highest priority error (if multiple errors codes are being communicated to it
by the Sensor Module(s)
5. Sensor Module Opening:
This inlet allows target gas to flow into the sensor. The inlet is also used for gas calibration.
6. Sensor Module LED:
Sensor Module LEDs will show the status of the sensor element within the Sensor Module, or the
status of the Sensor Module itself
7. Menu Buttons:
Momentary Pushbuttons for user Interface.
Figure 3-1: External View
1
6
6
4
7
5
2
3

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3.2 INTERNAL VIEW
Figure 3-2: Internal View
1. Analog Output 1:
Terminal Block for signal output 1
2. Analog Output 2:
Terminal Block for signal output 2
3. 2A Fuse:
Device level input protection
4. Sensor Module:
Contains sensor elements for hazardous gas detection
5. External Relays:
Connection for alarm/warning system
6. 120 VAC IN:
Terminal Block for main power in
7. Power Supply:
Regulates power for the device
8. Buzzer:
Provides audible indication upon alarm state
9. UTx Main Module:
Information processing and communications hub
10. Bus Power Module:
Provides power and communications interface to the UTx
7
10
9
1
2
8
5
3
6
4

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3.3 ACCESSORIES
The following accessories are available for use with the AMC-1BXX Gas Monitors
Accessory Description
Order Code
Calibration Kit
AMC-C1-FM2
Calibration Adaptor
AMC-FM1
3.3.1 UTx Calibration Kit
The Calibration Kit, as shown below, consists of the AMC-FM1 Calibration Adaptor that secures
the calibration gas hose to the front of the Sensor Module along with hose to connect to the
calibration gas cylinder regulator.
Figure 3-3: Sensor Module Calibration Kit

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4INSTALLATION
The installation of the AMC-1BXX 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.
4.1 MONITOR MOUNTING
Care should be taken to securely fasten the monitor unit on a solid, non-vibrating surface or
structure at 5 6 ft (1.5 - 1.8 m) from the floor. Install the unit 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 unit can be observed periodically. See Figure
4-1 for mounting hole locations.
CAUTION: All cable entry MUST BE through the BOTTOM of the monitor enclosure only. Other
entry locations will allow foreign materials to enter the enclosure, causing possible damage to the
internal components.
Warning:
The monitor should not be placed near cleaning products/solvents, particularly ones
that contain alcohol. This can permanently damage sensor elements or cause negative
output values.
Conduit entry from the top or back of the housing is Not Recommended. Any water
damage related to conduit entry from the top or back will not be covered under
warranty.
Qualified personnel should perform the installation according to applicable electrical
codes, regulations and safety standards. Ensure correct cabling practices are
implemented.

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Figure 4-1: Enclosure Mounting

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4.2 WIRING
4.2.1 POWER SUPPLY
The monitor operates on 120 VAC, 60 Hz. The power supply connections are made at the
power terminal block located inside the monitor.
All power and grounding connections to equipment must be made in accordance with applicable
electrical and building codes.
A separate, dedicated, noise free, 15 Amp power circuit, with an appropriately labeled circuit
breaker.
4.2.2 RELAYS
The Monitor houses 2 relays. The relay contacts are rated for 10Amps @ 28VDC/120VAC
resistive. For relay contact arrangement, see Below.
Figure 4-2: Relay Connections

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4.2.3 ANALOG OUT
Typically, analog output is used to communicate with a Building Automation System or control a
Variable Frequency Drive within a ventilation system.
Each analog output accommodates either 4-20mA, 0-10V, 2-10V or AMC-Multidrop
(proprietary).
Please contact us for configurations to match your needs.
4.2.4 RAM3
The AMC-RAM3 provides a remote alarm indication when employed with monitors such as the
AMC Gas Monitor 1B. 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 in excess of 90 dB(A) at a distance of 24 inches. The audio alert is
activated upon entry into an alarm condition and is silenced by either pushing the Acknowledge
Switch or clearing the alarm.
Figure 4-3: RAM3 Module
To support connecting RAM3 modules to the 1B Monitor the optional AMC-RAM-1B-WH (Wiring
Interface for RAM-3 and 1B Monitor) must be ordered. The item provides the terminal block
interfaces for wiring the RAM3 to the 1B Monitor and to the High Alarm Relay output that drives
activation of the RAM3.
Further details are available in the AMC-RAM3 User Manual available on the AMC Website.

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5OPERATION
This section describes how the functionalities of the AMC-1BXX Gas Monitor are operated and
performed. Please consultthe operation andinitial configurationchapters below before attempting
to use or calibrate the Gas Monitor.
5.1 STATUS LEDS
Refer to Section 3.1 for LED location and descriptions.
During operation the LEDs will display the following configurations:
Table 5-1: Status LEDs
LED States
Network
Alarm Status
Sensor Module
Display Screen Message
Start Up
•Initialization and
discovery of Sensor
Modules (after UTx
is powered up)
Off
Solid White
Solid White
AMC Splash Screen
•Sensor Warm-up
Flashing Green
(.5 sec. cycle)
Solid White
Solid White
Main Info Screen
(or blank)
No sensor gas readings
shown
Network Status
No network connection
(assume all sensors
operational)
Flashing Green
(.5 sec. cycle)
Solid Green
Solid Green
Main Info Screen
(or blank)
Faults
•At least one sensor
has gone under
range (more ve
than zero blanking
setting)
•Bad sensor
configuration
•Corrupted Sensor
Module Signal
•Sensor Module
Missing
•Incorrect Sensor
Module found
•Sensor Module not
Communicating
Not Applicable
Solid Red
Solid Red
Not indicated on Display
Screen
•Stuck in
Bootloader
Solid Blue
Solid Blue
Solid Blue
Not indicated on Display
Screen

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LED States
Network
Alarm Status
Sensor Module
Display Screen Message
•Real-Time Clock
(RTC) disabled or
uninitialized
Not Applicable
Solid Magenta
Solid Green
Not indicated on Display
Screen
Alarms
Warning threshold
reached
Flashing Green
(.5 sec. cycle)
Solid Yellow
Solid Yellow
Not indicated on Display
Screen
Alarm threshold
reached
Flashing Green
(.5 sec. cycle)
Solid Red
Solid Red
Not indicated on Display
Screen
Calibration
Cal Needed
Flashing Green
(.5 sec. cycle)
Flashing Cyan
and Yellow
(0.5 sec. cycle)
Flashing Cyan and
Yellow
(0.5 sec. cycle)
Not indicated on Display
Screen
In Calibration Mode /
Calibration activity
waiting to start
Flashing Green
(.5 sec. cycle)
Solid Green
Solid Cyan
Calibration Routine Prompts
Calibration looking for
stable
Flashing Green
(.5 sec. cycle)
Solid Green
Flashing Cyan (0.5
sec. cycle)
Calibration Routine Prompts
Calibration Pass
Flashing Green
(.5 sec. cycle)
Solid Green
Flashing Cyan and
Green
(1 sec. cycle)
Calibration Routine Prompts
Calibration Fail
Flashing Green
(.5 sec. cycle)
Solid Green
Flashing Cyan and
Red
(1 sec. cycle)
Calibration Routine Prompts
Calibration Warning
Flashing Green
(.5 sec. cycle)
Solid Green
Flashing Cyan and
Yellow
(1 sec. cycle)
Calibration Routine Prompts
Calibration Complete
Flashing Green
(.5 sec. cycle)
Solid White
Solid White
Display returns to
Sensor Service Menu

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5.2 MENU OVERVIEW
Note a Menu Flow Chart is available in section 9.
5.2.1 Menu System Normal Operation
Upon startup, a brief splash screen is shown on the display which includes the Armstrong
Monitoring Cofirmware. After a couple of seconds, the
display will update to display the main info screen as shown below. NOTE: The bar graphs
indicating the gas concentration are not visible while the sensor modules are warming up.
The warm-up period will be shown in the details section for the selected sensor until the
warm-up period expires.
As shown above, two sensors are currently attached to the transmitter. Only one sensor can be
selected at a time for the purpose of inspecting its details. Use the UP and DOWN buttons to
navigate between each sensor. The following diagram illustrates the main info screen after
pressing the DOWN button from the previous display. Notice how the details are updated to
reflect the newly selected sensor.
After a programmed timeout period without any button presses, the display will go blank (screen
saver mode). To re-enable the display, simply press the ENTER button.
5.2.2 Menu System Failed Sensor
In the event of a failed sensor, the bar graph is replaced with a large FAIL indication and the
detailed description isupdated accordingly. If thesensor fails while the display is OFF,the display
will immediately turn ON and the failed sensor will be selected by default. In addition, the FAIL
indication will toggle between normal and inverse white spacemode at a rate of once per second
as shown below.
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