Siemens Maxum II Service Manual page 39

6. Open the electronics enclosure door, mezzanine door, and oven door. Use a 4mm Allen
wrench if necessary and be careful not to place tension on the ribbon cable connecting to
the Maintenance Panel.
Ionization
Detector
Figure 4-4
7. Disconnect the FID heater power cable from the PECM. Note the connector location.
8. Disconnect the FID heater RTD cable from the DPM connector board. Note the connector
location.
Maxum Edition II Detectors
Service Manual, May 2018, A5E42019847001
Detector
Personality
Module
(DPM)
FID RTD
Leads
Flame
(FID)
Filament
Detector
Typical FID Connections
4.4 Replacing the FID Igniter
Igniter Signal
FID Bias (300V)
FID Output Signal
Flame Ionization Detector
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