Troubleshooting - Emerson Rosemount 700XA Reference Manual

July 2020
Analog output adjustment
Emerson sets the initial analog output adjustments at the factory before shipment at standard values (4-20 mA). You many need to
check and/or adjust these values depending on output cabling/impedance.
The adjustment may require two people if the units are some distance apart. It requires a calibrated digital meter to check the zero
and full scale values at the receiving end. You can use MON2020 to adjust the scale or span value.
You can use different engineering units, volts, and percentages to calibrate the analog outputs.
Upgrading the embedded software
The base GC firmware performs functions similar to operating systems such as DOS, Windows
provides the basic resources and interfaces to run the customer's applications. There is no direct user-level interface to the
firmware.
If you need to upgrade the firmware to your system, refer to the
additional information.
The GC's applications use the tools provided by firmware to perform the desired gas chromatograph applications for the user.
There are different applications to facilitate different gas chromatographic needs. To load a new application or to upgrade an
existing application, refer to the

Troubleshooting

The information is arranged either by major subsystems or by major functions of the gas chromatograph (GC).
Note
Correct all alarms before recalibrating.
Hardware alarms
Use LTLOI Failure through Flame Photometric Detector Board 1 Comm Failure
for the problem.
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 board.
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.
Rosemount 700XA
MON2020 Software for Gas Chromatographs Reference Manual
MON2020 Software for Gas Chromatographs Reference Manual
to identify the alarm, potential cause, and solution
™ ®
, or Linux . The base GC firmware
for details.
for
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