
120
Teledyne API – Model T400 O
3
Analyzer
083730400A DCN8130
Table 5-6. Relay Board Watchdog and Status LED Failure Indications
LED
FUNCTION
SIGNAL I/O PARAMETER
DIAGNOSTIC TECHNIQUE
ACTIVATED BY
VIEW RESULT
D2
1
Yellow
Metal Wool
Scrubber
Heater
1
O3_SCRUB_HEATER
O3 SCRUB
Voltage displayed should change.
If not:
•
Failed Heater
•
Faulty Temperature Sensor
•
Failed AC Relay
•
Faulty connectors/wiring
D7
Green
Zero/Span Gas
Valve
2
SPAN_VALVE
N/A
Valve should audibly change states.
If not:
•
Failed Valve
•
Failed Relay Drive IC on Relay PCA
•
Failed Relay PCA
•
12 VDC Supply (PS2)
•
Faulty connectors/wiring
D8
Green
Measure/Ref
Valve
PHOTO_REF_VALVE
N/A
D9
Green
Sample/Cal
Gas Valve
3
CAL_VALVE
N/A
D15
Green
Photometer UV
Lamp Heater
PHOTO_LAMP_HEATER
PHOTO_LAMP
Voltage displayed should change.
If not:
•
Failed Heater
•
Faulty Temperature Sensor
•
Failed AC Relay
•
Faulty connectors/wiring
D16
2
Green
IZS O
3
Generator UV
Lamp Heater
O3_GEN_HEATER
O3 GEN TEMP
1
Only applies on analyzers with metal wool scrubber option installed.
2
Only applies to instruments with calibration valve options installed.
3
Only applies on analyzers with IZS options installed.
Содержание T400
Страница 2: ......
Страница 101: ...99 Teledyne API Model T400 O3 Analyzer 083730400A DCN8130 This page intentionally left blank ...
Страница 176: ...This page intentionally left blank A 4 083730400A DCN8130 ...
Страница 177: ...Appendix B Wiring Diagram 083730400A DCN8130 ...