Control Module Functions
Item Display Function Action Required
Green Power Light
Illuminated System is on. 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, replace the
system immediately.
SIGNIFICANT Gas
Concentration Lights
Red (illuminated)
Dangerous gas concentration
detected.
Suspend vehicle operation
immediately and follow alarm
procedures.
Trace Gas Concentration
Lights
Amber (flashing) Minor gas concentration detected.
Use caution and monitor the
system.
Sensor Fault Lights
Off Sensor is functioning properly. None required.
On Sensor has malfunctioned. Replace the sensor immediately.
04/28/2009 f611034
10
11
12
13
Push
To
Silence
Shutdown
Reset
Power
SIGNIFICANT
Trace
Silence
Engaged
Relay
Engaged
Sensor Fault
Z
o
n
e 2
Gas Concentration:
Push To Test
AMGaDS III Plus
Gas Detection System
Zo
ne 1
2
3
4
56
7
8
9
1
1. Test Button
2. Sensor Fault Indicator Lights
3. Zone 1 Leak Indicator Lights
4. Power Indicator Light
5. Zone 2 Leak Indicator Lights
6. Silence Button
7. Silenced Engaged Light
8. Relay Engaged Light
9. Shutdown Reset Button
10. Buzzer Alarm
11 Red Light
12. Green Light
13. Sensor
Fig. 19.6, AMGaDS III Plus Overhead Console
Natural Gas Vehicle
19.8