Procedure - Siemens Maxum II Manual
Pd pa ap. general maintenance
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General Maintenance and Troubleshooting
4.4 General Analyzer Startup Procedure
4.4.1
Procedure
Following is the procedure for safe startup of the Maxum II.
1.
2.
3.
NOTICE
APU Considerations
When an APU is used, there must not be any wiring entering the Maxum II EC that is powered
from any outside source without connecting through the APU signal-disconnect relays. This
warning includes the Advance Data Hiway, Ethernet, and any other input or output signal
lines that are connected to other equipment which may source power onto the signal lines.
4.
5.
6.
7.
8.
9.
Note
The remainder of the startup process is dependent on whether an APU is installed.
If py (not equipped with APU)
10.
28
Verify that AC power is turned off at main power feed lines. All indicator lights should
be off.
Verify that the analyzer has been mounted and installed correctly.
(If APU is used) Verify that all power and signal lines have been connected correctly
through the APU power-disconnect relay and signal-disconnect relays.
Verify that clean (free of particulates and flammable gases and vapors), dry instrument
air has been attached correctly to the analyzer air lines. Refer to separate installation
documentation for instructions on making required attachments. Air flow should be
set to off at this time.
All air, gas supply and sample lines should be blown down and cleared of any partic‐
ulates or chemicals prior to pressurizing these lines to the Maxum II gas chromato‐
graph.
Make a physical inspection of all analyzer safety systems to verify that there is no
mechanical damage and that all systems are in good repair. This inspection must
include the Methanator (if in use), the Air Treater (if in use), the oven heater systems,
and all detector assemblies. Refer to the "Maintenance Considerations" sections pro‐
vided throughout this manual for specific inspection tasks for different components.
Inspect the EC door gasket. Verify it is clean and will seal all the way around the door.
Check all ports both gas and electrical to verify they are sealed to the cabinet and any
electrical wiring external connections have a proper wire seal.
(If APU is equipped) Verify that the maintenance switch for the APU is set for normal
operation.
(If APU is not equipped) Verify that fast purge valve is set to off.
Close the EC door and oven door. Turn on instrument air and verify that cable access
points and other openings in the EC are properly sealed or closed off.
Set the air pressure to the value stated on the purge tag.
Maxum edition II Analyzer General Maintenance
Manual, August 2018, A5E42019842001
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