System Faults
If a sensor has been disconnected or malfunctioned, the green 'System Normal' LED goes out and the yellow 'System Fault' LED illuminates. The yellow 'Sensor Zone' LED flashes to indicate the zone of the malfunctioning sensor. A single flash indicates zone 1, the left-hand sensor, and a double flash indicates zone 2, the right-hand sensor. If the system fault indicates a sensor zone not on the vehicle, the gas detection system needs to be reprogrammed.
If the wiring from the control panel to sensor has been damaged, only the 'System Fault' LED flashes.
If a sensor has been disconnected, malfunctioned, or the control panel wiring has been damaged, have the vehicle serviced. Do not operate the vehicle without a functioning gas detection system.
To reprogram the gas detection display:
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Press the 'System Reset' and 'Silence' buttons at the same time for at least ten seconds.
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Release the buttons when the alarm sounds and the 'Systems Normal' LED flashes. This indicates you have entered programming mode.
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Press the 'Silence' button to cycle through the different sensor zones. The sensor zone LED flashes to indicate the current sensor.
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If the amber 'Trace Gas' LED illuminates on the current sensor zone, this means the current sensor zone is being monitored. Press the 'Test' button to disable/enable monitoring of the current sensor zone.
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Wait one minute. If no action is taken for one minute, the alarm sounds twice to notify programming is complete and normal operation is engaged.
For the functions of all lights and buttons on the overhead console, see Table .
Table 1, USA Pro Shoreline AMGaDS III Plus Control Module Functions
|
USA Pro Shoreline Multizone Detection System Control Module |
|||
|---|---|---|---|
|
Item |
Display |
Function |
Action Required |
|
'System Normal' LED |
Green (illuminated) |
System is on and all components are operating properly. |
None required. |
|
Unlit |
Detection system is not functioning. |
Ensure the batteries are connected and replace any blown fuses. If the gas detection system is still not functioning, immediately replace the system. |
|
|
'Trace Gas' Concentration LED |
Yellow (illuminated) |
Minor gas concentration detected. |
Use caution and watch the control panel. |
|
'Significant' Gas Concentration LEDs |
Red Lower Bar (illuminated) |
Dangerous gas concentration at or above 50% of the LEL have been detected. The buzzer alarm sounds. The green 'System Normal' LED goes out. |
Quickly bring the vehicle to a safe stop. Apply the park brake, turn off the ignition, exit the cab, and call emergency responders. |
|
Red Upper Bar (illuminated) |
Dangerous gas concentration at or above 50% of the LEL present for over 1 minute. |
Immediately bring the vehicle to a safe stop. Apply the park brake, turn off the ignition, exit the cab, and call emergency responders. |
|
|
'Sensor Zone' LED |
Off |
Sensors are functioning properly. |
None required. |
|
On (flashing) |
Specifies sensor zone. Single flash designates zone 1. Double flash designates zone 2. |
If paired with gas concentration LED, this indicates which sensor is registering the gas concentration. If paired with 'System Fault' LED, this indicates which sensor is registering as non-operational. |
|
|
'System Fault' LED |
Off |
Sensors are functioning properly. |
None required. |
|
On |
A system component has malfunctioned. |
If only the 'System Fault' LED is flashing, verify the wiring from the control panel to the sensor. If the 'Sensor Zone' LED is flashing, verify the designated sensor is connected and operational. Replace damaged sensors immediately. |
|
|
'System Reset' Switch |
— |
Resets the system after an alarm. |
Reset the system only after the gas has cleared and emergency responders have declared the vehicle safe. |
|
'System Reset' Switch LED |
Yellow (illuminated) |
Indicates the system has been successfully reset. |
None required. |
|
Off |
Normal condition. |
None required. |
|
|
'Test' |
— |
Pressing the switch illuminates all the control panel LEDs and transfers all I/O contacts. |
Test the system daily. |
|
'Silence' Switch |
— |
Silences the alarm buzzer. |
Press to silence the alarm buzzer. |
|
'Silence' Switch LED |
Yellow (illuminated0 |
Indicates the buzzer is active but silenced. |
Quickly bring the vehicle to a safe stop. Apply the park brake, turn off the ignition, exit the cab, and call emergency responders. |
|
Off |
Normal condition. |
None required. |
|