6
Troubleshooting
The information is arranged either by major subsystems or by major functions of the gas
chromatograph (GC).
Note
Correct
all
alarms before recalibrating.
6.1
Hardware alarms
Use
Flame Photometric Detector Board 1 Comm Failure
the alarm, potential cause, and solution for the problem.
6.1.1
LTLOI Failure
Recommended actions
1. Power the gas chromatograph (GC) down completely.
2. Check that the local operator interface (LOI) is connected to the backplane
board at one end and the LOI board at the other end.
3. Power up the GC.
4. If the message appears again, replace the LOI board.
6.1.2
Maintenance Mode
A technician has put the gas chromatograph (GC) into Maintenance mode for servicing.
Recommended action
To disable Maintenance mode, deselect the
Maintenance Mode
check box in the
System
dialog.
6.1.3
Power Failure
Potential cause
The gas chromatograph (GC) has experienced a restart, caused by a power failure, since
alarms were last cleared.
Recommended action
Allow the GC to automatically restart in Warm Start mode.
During Warm Start mode, the GC does the following:
a. Waits for the heaters to stabilize.
b. Purges the sample loop.
c. Actuates the valves for two cycles.
After completing these actions, the GC switches to auto-sequence mode.
Reference Manual
Troubleshooting
2-3-9000-744
June 2022
Rosemount 700XA
183
Summary of Contents for Rosemount 700XA
Page 1: ...Reference Manual 2 3 9000 744 Rev L June 2022 Rosemount 700XA Gas Chromatograph ...
Page 6: ...TxD TD or Sout Transmit data or signal out 6 ...
Page 30: ...Overview Reference Manual June 2022 2 3 9000 744 30 Emerson com Rosemount ...
Page 100: ...Installation and start up Reference Manual June 2022 2 3 9000 744 100 Emerson com Rosemount ...
Page 182: ...Operation and maintenance Reference Manual June 2022 2 3 9000 744 182 Emerson com Rosemount ...
Page 280: ......
Page 281: ......
Page 282: ......
Page 293: ......