Signal Disconnect Relay - Siemens Maxum II Manual
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Also See for Maxum II:
- Reference manual (100 pages) ,
- Manual (86 pages) ,
- Service manual (58 pages)
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Figure 2-17
2.3.7
Signal Disconnect Relay
The Signal Disconnect Relay is mounted externally to the analyzer. This relay disconnects all
external wiring to the analyzer except for power to the APU. The Signal Disconnect Relay is
controlled by the APU which deactivates the relay when purge pressure is lost. Power circuits
are controlled directly by the APU.
More than one Signal Disconnect Relay may be installed, depending on configuration.
Explosion Protection Safety Standards
Manual, August 2017, A5E02220442001 Rev 8
2.3 Electronics Purging System (with Automatic Purge Unit)
Covered Purge Exhaust Diffuser
Safety Systems - Purging
31
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