Siemens Maxum II Service Manual page 45

12.Plug the white signal wire (from the DPM) into the appropriate detector electrode position.
See Electrode Connections for New Igniter. The wire should not be connected at the DPM
end yet.
White Signal Wire
Figure 4-12
13.Place the white signal wire (from the DPM, often covered by black heat-shrinkable tubing)
across the top of the new igniter board.
Figure 4-13
14.Insert the unplugged ends of the wires into the new FID purge tube and slide the purge
tube over the igniter board and wiring. Make sure that the white signal wire remains
positioned against the flat top side of the igniter board.
Place the end of the purge tube with the flat area around the hole towards the detector.
Figure 4-14
15.Line up the hole on the new purge tube with the hole on the bushing. The holes will be on
the bottom of the purge tube when the assembly is in the upright, operating position.
Maxum Edition II Detectors
Service Manual, May 2018, A5E42019847001
(from DPM)
Red Wire
(from igniter)
FID New Igniter Electrode Connections
FID Wiring
Detector Bushing
FID Purge Tube and Bushing Orientation
Flame Ionization Detector
4.4 Replacing the FID Igniter
Note: The black wire
appears blue due to a
Teflon coating over the
wire.
Black Wire
(from igniter)
45