100
SCD and NCD User Manual
6
Troubleshooting
Power Problems
When troubleshooting power problems on an SCD or NCD,
remember that the power supplied to the detector electronics
and flow modules comes from the GC and is controlled by the
GC power switch. The power supplied to the SCD/NCD heaters,
NCD chiller, vacuum pump, and ozone generator comes from
the detector mainframe and is controlled by the detector power
switch.
No power
If the detector does not appear to have power—if the vacuum
pump does not run and the heaters will not turn on—check the
following:
•
Check that the power switch is on.
•
Check that the power cord is properly connected.
•
Check the building power supply.
If the cord if connected properly, and the building circuit for the
detector is operating normally, contact Agilent.