Steps For Safe Startup Of Maxum Ii; Overview; Procedure - Siemens Maxum II Manual

Safe Operation

5.5 Steps for Safe Startup of Maxum II

5.5 Steps for Safe Startup of Maxum II
5.5.1

Overview

The startup procedure described in this section explains the principle steps necessary to power
the Maxum II in a manner that does not compromise the safety systems that have been
described in this manual.
This section does not explain the startup procedures required that relate to software functions
or the analytical application of the analyzer. Please refer to other documentation and manuals
for information and startup steps that relate to these other aspects of startup.
5.5.2

Procedure

Following is the procedure for safe startup of the Maxum II.
1.
2.
3.
NOTICE
APU Considerations
When an APU is equipped, there should not be any wiring entering the Maxum II electronics
enclosure that is powered from any outside source without connecting through the APU
disconnector units. 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.
60
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 equipped) Verify that all power and signal lines have been connected cor‐
rectly through the APU disconnector units.
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.
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.
(If APU is equipped) Verify that the maintenance switch for the APU is set for normal
operation as shown in figure 2-4.
(If APU is not equipped) Verify that fast purge switch (figures 2-7 and 2-9) is set to off.
Close the electronics door and oven door. Turn on instrument air and verify that cable
access points and other openings in the electronics enclosure are properly sealed or
closed off.
Explosion Protection Safety Standards
Manual, August 2017, A5E02220442001 Rev 8