Table 8-5: Relay Board Status Led Failure Indications - Teledyne T360 Operation Manual

Troubleshooting and Service

Table 8-5: Relay Board Status LED Failure Indications

LED FUNCTION
D2 WHEEL
Yellow HEATER
D3 BENCH
Yellow HEATER
D4
SPARE
Yellow
SAMPLE/CAL
D5
GAS VALVE
Green
OPTION
ZERO/SPAN
D6
GAS VALVE
Green
OPTION
D7 SHUTOFF
Green VALVE OPTION
D8
IR SOURCE
Green
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Teledyne API Model T360/T360M Operation Manual
SIGNAL I/O PARAMETER
ACTIVATED BY VIEW RESULT
WHEEL_HEATER WHEEL_TEMP
BENCH_HEATER BENCH_TEMP
N/A
CAL_VALVE
SPAN_VALVE
SHUTOFF_VALVE
IR_SOURCE CO _MEASURE
2
DIAGNOSTIC TECHNIQUE
Voltage displayed should change. If not:
Failed Heater
Faulty Temperature Sensor
Failed AC Relay
Faulty Connectors/Wiring
Voltage displayed should change. If not:
Failed Heater
Faulty Temperature Sensor
Failed AC Relay
Faulty Connectors/Wiring
N/A N/A
Sample/Cal Valve should audibly change states. If
not:
Failed Valve
N/A Failed Relay Drive IC on Relay Board
Failed Relay Board
Faulty +12 VDC Supply (PS2)
Faulty Connectors/Wiring
Zero/Span Valve should audibly change states. If
not:
Failed Valve
N/A Failed Relay Drive IC on Relay Board
Failed Relay Board
Faulty +12 VDC Supply (PS2)
Faulty Connectors/Wiring
Shutoff Valve should audibly change states. If not:
Failed Valve
Failed Relay Drive IC on Relay Board
N/A
Failed Relay Board
Faulty +12 VDC Supply (PS2)
Faulty Connectors/Wiring
Voltage displayed should change. If not:
Failed IR Source
Faulty +12 VDC Supply (PS2)
Failed Relay Board
Failed IR Photo-Detector
Failed Sync/Demod Board
Faulty Connectors/Wiring
07272B DCN6552