6.1.4
User Calculation Failure
The gas chromatograph (GC) has detected one or more errors while parsing a user-defined
calculation.
Potential cause
This usually happens when a user-defined calculation attempts to use a system variable
that does not exist.
Recommended action
Fix the calculation that is referring to the undefined system variable.
6.1.5
Low Battery Voltage
The gas chromatograph (GC) has detected a low battery voltage on the central processing
unit (CPU) board.
Recommended actions
Replace the CPU board immediately to avoid losing GC configuration data.
a) Save the diagnostic data file. In Rosemount MON2020, go to
Tools
→
Save
Diagnostic Data...
.
b) Power down the GC.
c) Ensure that
SW7
on the CPU board is in the On position.
d) Replace the CPU board.
e) Restore configuration back to the GC. In Rosemount MON2020, go to
File
→
Restore Configuration to GC...
.
6.1.6
Preamp Board Comm Failure
The gas chromatograph (GC) cannot detect the preamp board.
Preamp board 1 or 2.
Recommended actions
1. Power the GC down completely.
2. Check that the board is properly seated in the correct slot on the backplane.
In Rosemount MON2020, select
Hardware
→
Installed Hardware
for hardware
slot locations.
3. Power up the GC.
4. If the message appears again, replace the preamp board.
Troubleshooting
Reference Manual
June 2022
2-3-9000-744
184
Emerson.com/Rosemount
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 ...
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