2101510 Rev. AG
Page 5–7
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Pipe or wall mounting: The unit must be in a vertical position and the
mounting brackets tightened on the pipe. The wall mounting bracket must be
securely affixed to the mounting wall.
•
Carrier gas bottle mounting rack: The mounting rack should be tilted
backward slightly to keep the bottles from falling forward.
•
Bottles within mounting rack: The bottles must be securely strapped in the
mounting rack.
•
Bottle regulators: These must be tightened securely and checked for leaks.
•
Pipe-mounted sample probe: These must be securely mounted in the pipe
meter run using an approved probe adapter.
•
Stainless steel tubing connected between sample probe and NGC: These
must not be bent or closed off. The connections must be tight. Such
conditions impede the sample flow to NGC.
•
Tightness of front and rear end caps: Hand-tightening gently is adequate.
•
Input/output terminations, external power or signal cable runs: All input/output
cable, power and signal conduit runs to Div 2 or non-hazardous areas must
be sealed per NEC codes.
5.5 Backing Up Configuration Files (Save)
Before beginning any maintenance on the NGC, collect the data and back up all
configuration files to the laptop’s hard drive or a floppy disk. This safeguards the
data and allows for a re-start of the unit without the problems of re-configuring the
NGC should anything arise.
Although there are save buttons in the Entry Mode screens which allows the user
to back up entry mode data items, a complete system backup is only
accomplished by using the Save and Restore Utility. When using this utility to
back up files, the user should also download the files to the TFCold drive in case
of a cold start.
5.5.1
Instructions
1)
Collect data from the unit.
2)
While in PCCU, use the Save and Restore Utility found under File Utilities in the
Operate drop-down menu or by clicking
Save and Restore Utility
on the toolbar.
3)
In the Save and Restore window, click
Save Station Files
.
4)
When the Save Station Files window appears, verify the default name and path
for the files. Click
OK
. This will save the TFData files to the PC.
5)
When finished saving the station files, a new window will offer the option to
restore the station files to the TFCold drive. If the user selects
Yes
, the station
files will be downloaded to that drive.
It may not always be desirable to restore the station files to
TFCold. Some problems addressed in the
section may require a selective restore. For more
information, see Troubleshooting and PCCU help files.
5.6 Restore Configuration Files
The Restore function enables the user to follow various maintenance procedures
or download configuration files to the flow computer.
If prior to performing maintenance, the Save Configuration Files
was used, these
files were downloaded to the laptop hard drive or on a floppy disk. The Restore
