ACM 1032 User manual

IMPORTANT:
PLEASE READ THESE INSTRUCTIONS CAREFULLY
BEFORE BEGINNING INSTALLATION AND/OR
OPERATION OF THIS EQUIPMENT.
Filename: Manual AMC 1032 CO_Propane
Copyright, 12/05/1999
The Armstrong Monitoring Corporation
[phone] —)
[phone] —Fax
[phone] —)U.S. Toll Free
www.armstrongmonitoring.com
1032
INSTRUCTIONS
INSTALLATION AND OPERATING INSTRUCTIONS
FOR THE AMC-1032 TWO CHANNEL MONITOR
WITH INTEGRAL CARBON MONOXIDE/REMOTE
AMC-3700 PROPANE SENSORS

AMC –1032 CO/PROPANE
iii
TABLE OF CONTENTS
Page
TABLE OF CONTENTS .....................................................................................................................III
WARRANTY.................................................................................................................................... V
LIABILITY...................................................................................................................................... V
MODIFICATIONS AND SUBSTITUTIONS..................................................................................... V
PRODUCT RETURN..................................................................................................................... V
PRODUCT INFORMATION.................................................................................VI
1PRODUCT DESCRIPTION ........................................................................................................ 1
1.1 GENERAL DESCRIPTION.................................................................................................. 1
FIGURE 1-1: Internal features of the AMC-1O32 monitor. (DWG# 2657) ................... 2
2INSTALLATION ......................................................................................................................... 3
2.1 LOCATION AND INSTALLATION OF MONITOR ............................................................. 3
FIGURE 2-1: Locations of mounting holes for installation, and power supply
connections. (DWG#2658) ............................................................................................... 4
2.2 LOCATION AND INSTALLATION OF REMOTE PROPANE SENSOR............................... 5
FIGURE 2-2: Installation of remote sensor housing (DWG# 2659)............................... 6
2.3 CABLE SELECTION ........................................................................................................... 6
2.4 WIRING OF THE MONITOR.............................................................................................. 7
FIGURE 2-3: Relay contact arrangement (DWG# 2679)............................................... 8
FIGURE 2-4: Wiring of remote sensors and transmitters................................................. 9
2.5 DIP SWITCH PROGRAMMING......................................................................................10
TABLE 2-1: DIP switch programming chart....................................................................10
2.6 ALARM RELAY PROGRAMMING ................................................................................. 11
TABLE 2-2: Jumper alarm relay programming.............................................................. 11
2.7 AUDIO ALARMS.............................................................................................................11
TABLE 2-3: Audio sounds for various alarms..................................................................11
3OPERATION AND CALIBRATION ......................................................................................... 13
3.1 POWER-ON SELF-TEST AND DIAGNOSTICS .................................................................13
3.1.1 POWER-ON DELAY ................................................................................................14
3.1.2 TEST SWITCH FUNCTION.........................................................................................14
3.2 ALARM ACTIVATION DELAYS....................................................................................... 14
3.3 ACKNOWLEDGE FUNCTION ........................................................................................ 14
3.4 ALARM AND FAIL THRESHOLDS ................................................................................... 15
3.5 ALARM AND SIGNAL ADJUSTMENTS........................................................................... 15
3.5.1 FOR ON-BOARD CO OR REMOTE PROPANE SENSORS..................................... 15
FIGURE 3-1: Trimmer and test point locations and functions ....................................17
4PREVENTIVE MAINTENANCE................................................................................................18
4.1 GENERAL........................................................................................................................18
4.2 VERIFICATION OF OPERATION .................................................................................... 18

AMC –1032 CO/PROPANE
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4.3 SENSOR REPLACEMENT ................................................................................................18
FIGURE 4-1: Remote Sensor replacement ...................................................................21
HOW TO CONTACT US................................................................................................................22

AMC –1032 CO/PROPANE
v
WARRANTY
The AMC-1032 monitor is warranted against defects in material and workmanship for a
period of two years from date of delivery. During the warranty period, The Armstrong
Monitoring Corporation will repair or replace components that prove to be defective
in the opinion of AMC. We are not liable for auxiliary interfaced equipment, or
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 such failure is due to
misuse or conditions of use.
LIABILITY
All AMC products must be installed and maintained according to instructions. Only
qualified technicians should install and maintain the equipment.
AMC shall have no liability arising from auxiliary interfaced equipment, for
consequential damage, or the installation and operation of this equipment. AMC shall
have no liability for labour 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.
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.
PRODUCT RETURN
All products returned for warranty service will be by prepaid freight and they will only be
accepted with an R.M.A number issued by AMC. All products returned to the client
will be freight collect.

AMC –1032 CO/PROPANE
vi
PRODUCT INFORMATION
Monitor Serial Number....................................................................... __________________
Power Supply Requirement .....................................................................120 VAC, 60 Hz
Operating Temperature.................................................................................. 0°TO 40°C
Relative Humidity .....................................................................0 –99% non-condensing
Sensor
Alarm Trip
Points
No.
Part No
Serial No.
Type of Gas
LOW
HIGH
Signal
Voltag
e
(volts)
S1
carbon monoxide
S2
propane
NOTE:
ALL ARMSTRONG MONITORING SYSTEMS MUST BE PROPERLY INSTALLED AND MAINTAINED
ACCORDING TO INSTRUCTION, TO ASSURE PROPER OPERATION. ONLY QUALIFIED
TECHNICIANS SHOULD INSTALL AND MAINTAIN THE EQUIPMENT.

AMC –1032 CO/PROPANE
1
1PRODUCT DESCRIPTION
This section provides a general description of the features of the AMC 1032 monitor.
1.1 GENERAL DESCRIPTION
The AMC-1032 CO/PROPANE monitor is a two channel gas monitoring system designed
to provide continuous, reliable surveillance of surrounding air for traces of carbon
monoxide and propane, as detailed on page v. This unit provides independently
adjustable alarms for increasing-level detection. Channel 1 indicates carbon
monoxide alarms and channel 2 indicates propane alarms that are shown on the
display (see Figure 1-1).
1. POWER TERMINALS: For line voltage connections of 120 VAC, 60 Hz.
2. TRANSFORMER: A Class II, step down transformer runs the internal
circuitry and remote sensor at low voltages.
3. MAIN TERMINAL BLOCK: Provides wiring connection points as follows:
1,2 -Audio alarm indicator
3,4 -Acknowledge switch
5,6 -12 VAC power input
7,8,9 -(Not used)
10,11,12 -Sensor 2 input
4. AUDIO ALARM INDICATOR: The buzzer will activate for high alarm, low alarm and
fail conditions, with a distinct tone for each one.
5. DISPLAY: Indicates status of sensor(s). During normal operation,
a dash (-) is displayed. An alarm condition will display
a letter, “A, L, or H" (indicating alarm) or “F” (sensor
failure), followed by a number, “1” or “2” (indicating
which channel).
Example: lf one sensor is in Low alarm and the other is
in Fail, display sequence will be "L, 1, F, 2, blank”.
6. RELAY SETUP JUMPERS: Used to independently configure the LO and HI relays
as Energized or Non-Energized.
7. TEST SWITCH: The test switch is provided to electronically simulate
alarms in order to test audio and relay functions.

AMC –1032 CO/PROPANE
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8. ALARM ADJUST: Sets the Hl alarm of sensor 1/2 trip point. (See Figure 3-
1)
9. SENSOR SIGNAL ADJUST: Sets the signal of sensor S1/S2 to match preset LO alarm
trip point. (See Figure 3-1)
10. PROGRAMMING SWITCHES: Allows user to configure the alarm delay and timer
circuits, audio alarm activation, and acknowledge
switch function.
11. RELAYS: Three DPDT relays are provided, for Low alarm, High
alarm, and for Fail.
12. ON-BOARD CO SENSOR: Allows local detection of gas on one channel.
8.
LO
HI
(CARBON MONOXIDE, F4128E)
FAIL
TRIMMERS
TERMINALS
G
N
H
FIGURE 1-1: Internal features of the AMC-1O32 monitor. (DWG# 2657)

AMC –1032 CO/PROPANE
3
2INSTALLATION
This section covers topics related to the installation location, mounting, cable selection
and wiring instructions for the AMC 1032 monitor. Monitor function programming is also
included in this section.
2.1 LOCATION AND INSTALLATION OF MONITOR
Care should be taken to securely fasten the AMC-1032 monitor unit on a solid, non-
vibrating surface or structure at 2 feet 11 inches to 3 feet 11 inches from 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 in
a NON-HAZARDOUS area where the unit can be observed periodically. See Figure 2-1
for mounting hole locations.
NOTE
ALL CABLE ENTRY MUST BE THROUGH THE BOTTOM OF THE MONITOR ENCLOSURE ONLY.
OTHER ENTRY LOCATIONS WILL ALLOW FOREIGN MATERIALS TO ENTER THE ENCLOSURE,
POSSIBLY CAUSING DAMAGE TO INTERNAL COMPONENTS. MOUNTING HARDWARE IS
NOT SUPPLIED.

AMC –1032 CO/PROPANE
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FIGURE 2-1: Locations of mounting holes for installation, and power supply connections.
(DWG#2658)
8.
N
H
LO
HI
G
120 VAC
FAIL
REFER TO MANUAL
WIRING OF THE MONITOR
SECTION 2.4:
RELAY WIRING
SUBSECTION:

AMC –1032 CO/PROPANE
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2.2 LOCATION AND INSTALLATION OF REMOTE PROPANE SENSOR
Mount the remote propane sensor on a solid, non-vibrating surface or structure in an
area where the local concetration of gas is unaffected by the presence of ventilation
systems and away from sources of interference gases. The sensor should be installed
less than 12 inches above the ground. (See Figure 2-2)
NOTE
MOUNTING ARRANGEMENT OF REMOTE SENSOR HOUSING DEPENDS ON SENSOR
LOCATION AND MOUNTING SURFACE. MOUNTING HARDWARE IS NOT SUPPLIED.

AMC –1032 CO/PROPANE
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MOUNTING
SURFACE
ENCLOSURE
FIGURE 2-2: Installation of remote sensor housing (DWG# 2659)
2.3 CABLE SELECTION
Connections from monitor to sensor should be made using shielded, 2 or 3-conductor
cable (depending on type of remote sensor or transmitter used). For best signal
transmission and maximum noise rejection, run cable through steel conduit (cable

AMC –1032 CO/PROPANE
7
shield must be grounded at the monitor). For basic selection of cable size and length
(between monitor and sensor), refer to the cable selection chart in the appropriate
remote sensor or transmitter manual(s).
2.4 WIRING OF THE MONITOR
POWER SUPPLY:The monitor operates on 120 VAC, 60 Hz. A Class II step
down transformer runs the internal circuitry at low voltages.
The power supply connections are made at the power
terminal block located inside the monitor (See FIGURE 2-1).
RELAYS: There are up to three DPDT relays provided that operate
with High/Sensor-2 alarm, Low/Sensor-1 alarm, and Fail. The
contacts are rated for 1/3HP@12OVAC/24OVAC,
lOAmps@28VDC/12OVAC/ 240VAC, resistive. For relay
contact arrangement, see FIGURE 2-3.
RELAY WIRING: To safe guard against possible circuit damage, FIRST
connect field wiring to relay contacts then connect
polarized relay coil wiring connector to header on PCB. Also,
disconnect this connector before servicing the unit.
REMOTE PROPANE SENSOR:The remote propane sensor connects to a set of sensor
terminals (-, S2, +) on the main terminal block located on the
circuit card. Refer to FIGURE 2-4.

AMC –1032 CO/PROPANE
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N.C. CONTACTS (A)
N.O. CONTACTS (A)
COIL
COIL
COMMON (A)
COMMON (B)
N.C. CONTACTS (B)
N.O. CONTACTS (B)
FIGURE 2-3: Relay contact arrangement (DWG# 2679)
The AMC 1032 is shipped with low and high alarm relays factory configured to be de-
energized in the non-alarm state (as per diagram shown above). If the user prefers to
have relays in a normally energized (failsafe) state, see section 2.6 for jumper
configuration.
The fail relay is factory set in the energized (failsafe) mode, and is not programmable by
the end user.

AMC –1032 CO/PROPANE
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FIGURE 2-4: Wiring of remote sensors and transmitters.

AMC –1032 CO/PROPANE
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2.5 DIP SWITCH PROGRAMMING
The circuit card has two blocks of DlP switches for configuring the various functions.
Each DIP switch can be set to OFF (down position) or ON (up position) depending on
functions required.
TABLE 2-1: DIP switch programming chart.
SWITCH
POSITIO
N
FUNCTION
OFF
No activation delay of LOW alarm conditions.
SW1-1
ON
Five (5) minute activation delay of LOW alarm conditions. Sensor
returning below alarm threshold resets delay timer.
OFF
No activation delay of HIGH alarm conditions.
SW1-2
ON
Five (5) minute activation delay of HIGH alarm conditions. Sensor
returning below alarm threshold resets delay.
OFF
Audio alarm indicator (buzzer) disabled.
SW1-3
ON
Audio alarm indicator (buzzer) enabled.
OFF
Pressing the external ACKNOWLEDGE pushbutton switch silences
the audio alarm indicator (buzzer) only.
SW2-1
ON
Pressing the external ACKNOWLEDGE pushbutton switch silences
the audio alarm indicator (buzzer), also resets the alarm and fail
relays to normal (no-alarm state) subject to alarm timer (see SW2-
2: ON).
OFF
Alarm relays return to normal state as soon as alarm condition is
removed, or the ACKNOWLEDGE switch is pressed (If SW2-1 is ON).
SW2-2
ON
Alarm relays are held in alarm state for a minimum of ten (10)
minutes. A sensor level falling below the alarm threshold and
recuring during this time resets the alarm timer.
OFF
Audio alarm is disabled for LOW alarm conditions (2-threshold
sensor modes only).
SW2-3
ON
Audio alarm is activated on LOW alarm conditions (2-threshold
sensor modes only).

AMC –1032 CO/PROPANE
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OFF
Sensor fail threshold set at 100 mV (0.4 mA). Normal setting.
SW2-4
ON
Sensor fail threshold set at 350 mV (1.4 mA). 3-wire transmitter
only.
2.6 ALARM RELAY PROGRAMMING
Two sets of jumpers are provided, at the left edge of the circuit card, to configure each
alarm relay as normally Non-Energized or Energized when not in alarm. Use the chart
below to configure the jumpers to the function required.
TABLE 2-2: Jumper alarm relay programming.
JUMPER
POSITION
FUNCTION
1-2
High alarm relay is energized during normal operation (de-
energized on alarm). Use this configuration to cause alarm in
case of power failure.
JB3
2-3
High alarm relay is de-energized during normal operation
(energized on alarm). Use this configuration to reduce power
consumption.
1-2
Low alarm relay is energized during normal operation (de-
energized on alarm). Use this configuration to cause alarm in
case of power failure.
JB4
2-3
Low alarm relay is de-energized during normal operation
(energized on alarm). Use this configuration to reduce power
consumption.
2.7 AUDIO ALARMS
An audio alarm output is provided, which produces various alarm sounds, as shown in
the chart below. The audio alarm can be disabled by turning OFF DIP switch SW1-3.
TABLE 2-3: Audio sounds for various alarms.
SENSOR STATUS
SOUND OUTPUT
Normal Operation (no alarms)
Off (no sound)
Low Alarm (SW2-3 OFF, two-threshold modes only)
Off (no sound)
Low Alarm (SW2-3 ON, two-threshold modes only)
Two (2) long beeps followed
by a short pause.

AMC –1032 CO/PROPANE
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Any sensor alarm (one-threshold modes) or High Alarm
(two-threshold modes)
Four (4) short, fast beeps
followed by a short pause
Any sensor fail
(with no unacknowledged alarms on the other sensor)
Two (2) short beeps followed
by a long pause.
The controller’s circuit operation ensures that Low alarm, High alarm and Fail conditions
will not occur simultaneously on the same sensor. An alarm condition on a sensor will
override a Fail condition on the other sensor.

AMC –1032 CO/PROPANE
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3OPERATION AND CALIBRATION
This section covers the operation and calibration procedures pertaining to the AMC
1032 monitor. Self-test and diagnostics instructions are followed by a section on alarm
activation delays. The use of the optional acknowledge function are also described in
detail. The final topics covered in this section are the descriptions of the alarm and fail
thresholds as well as alarm and signal adjustments instructions.
3.1 POWER-ON SELF-TEST AND DIAGNOSTICS
The controller features an on-card circuit that continuously monitors display activity. If
the display stops for more than one second, indicating a controller failure, the controller
is reset. This circuit also monitors the on-card 5 VDC power supply for instability, and will
hold the controller in a reset condition until the 5 VDC power supply stabilizes.
On controller power up or reset, the internal memory is checked. If a fault is detected,
the display will show "E" (error) with the Decimal Point OFF and the controller is reset.
Following this test, the software is calculated and compared with a stored checksum
value.
If the calculated checksum is incorrect, the display will show "E" (error) with the Decimal
Point
ON and the controller is reset.
During operation, if an error is detected in the analog-to-digital (ADC) converter circuit,
the ADC is reset. If the fault remains, the display will show “H” (halt) with the Decimal
Point ON and the controller is reset.
The fail relay stays de-energIzed (fault condition) until all self-tests have been
successfully completed, and if the controller is reset.

AMC –1032 CO/PROPANE
14
3.1.1 POWER-ON DELAY
Following successful completion of all self-tests, the detection of sensor alarm and fail
conditions is disabled for 30 seconds. This delay allows the sensors to stabilize. During
this delay, the display shows the “sensor normal” condition (cycling dash), with a
flashing Decimal Point. The audio alarm is silent, the alarm relays are held in the no-
alarm condition, and the fail relay is energized (non-fail state). After this delay, the unit
becomes operational and shows the “sensor normal” condition, a dash (-) cycling up
and down the display.
3.1.2 TEST SWITCH FUNCTION
While the on-card test switch is pressed, it will cause continuous activation of all three
relays and audio alarm indicator, and the display shows a “ t ” (test) and decimal
point. Processing of sensor signal(s) and internal functions continues. When the test
switch is released, the controller returns to normal operation.
3.2 ALARM ACTIVATION DELAYS
If required, an activation delay of five (5) minutes may be independently enabled for
Low/High alarm conditions (see DlP switch Programming chart). While enabled (ON), a
sensor signal exceeding the alarm threshold momentarily then returns to normal before
the delay expires will be ignored and the delay timer will reset. If a sensor signal
exceeds the alarm threshold and maintains this level, the alarm will activate after the
delay expires. When an active alarm condition returns to normal (no-alarm) the alarm
activation delay timer will reset.
3.3 ACKNOWLEDGE FUNCTION
An option exists for an "ACKNOWLEDGE" pushbutton switch. When this switch is pressed,
all alarm and fail conditions will be silenced (audio alarm off) for 30 minutes. If any