Siemens Maxum II Service Manual

Detector Control Paths
Several control signals are available to control various detector functions as shown below.
5 V Power (FPD)
Enable (FPD)
300 V Bias (FID)
Digital (Ignite) / Power (Glow Plug)
Network
I
2
C
I
2
C
Digital
(Range
Select)
GCP
Color
Touch
Display
SYSCON
PECM
BaseDPM
A/D
Mezzanine
Module
(signal conditioning)
FID
FPD
Analog
Output
Figure 3-8 Maxum II Detector Control Functions
Location ID Switch
The Location ID Switch, shown previously in the photograph, selects the DPM location that is
incorporated in the address, to be reported in the results.
The DPM I
2
C port is connected directly to the system controller via the PECM or a wiring
distribution board. In this scenario, the following values are applied:
Switch Value Location
1 Left
2 Center
3 Right
NOTE:
If the DPM I
2
C port is connected to an SNE, the value is always set to “1”. The actual location
value is determined by the SNE.
Flame Photometric Detector
3.5 Base3 Detector Personality Module (DPM)
Maxum Edition II Detectors
26 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)