Siemens Maxum II Service Manual

Figure 3-2 Flame Photometric Detector Major Components
Combustion Chamber
● The burner nozzle consists of two annular gaps. The combustion gas H
2
flows out of the
outer annular gap and mixes with the combustion air from the inner gap. The carrier gas
flows from the nozzle into the dome-shaped flame.
● The exhaust is taken from the combustion chamber output via a flameproof joint.
● The glow plug is located above and to the side of the burner.
Optics
● The flame burns in a recessed area shielded from the fiber optic interface.
● The fiber optic cable connects to the photo multiplier tube (PMT) module in the EC.
● The optical interference filter is built into the PMT module
● All connections between the combustion chamber and the photomultiplier are absolutely
light-tight.
● The ignition cable of the FPD is routed through an EEx-e feed through to the EC.
Heater
The FPD is supplied with an external heater. Condensation would be formed in the FPD at
temperatures below 80°C and have a negative influence on the measuring properties. The
detector is insulated to prevent moisture from entering it.
Flame Photometric Detector
Maxum Edition II Detectors
18 Service Manual, May 2018, A5E42019847001

Siemens Maxum II Specifications

General

Category	Gas Chromatograph
Measurement Principle	Gas Chromatography
Communication Protocols	Modbus, Ethernet, Profibus
Operating Temperature	-20°C to 55°C
Power Supply	24 VDC or 100-240 VAC
Mounting	rack mount
Applications	Refinery, chemical, petrochemical, natural gas
Detectors	Thermal Conductivity Detector (TCD), Flame Ionization Detector (FID)
Sample Inlets	Multiple
Dimensions	Varies by configuration (e.g., 19" rack mount)