The Siemens C79458-L2428-A1 is a TCD (Thermal Conductivity Detector) board used in the Siemens PGC302 process gas chromatograph. It is the dedicated electronic board responsible for processing the signal from the TCD cell, which is the core detector used in gas chromatography to analyze the concentration of gas components.
According to a Siemens PGC302 manual excerpt, the board is explicitly listed under "Detector boards" as the "TCD-board C79458-L2428-A1" . Aftermarket spare parts suppliers describe it as an "electronic board for TCD" or "WLD P302 E-1 electronic board for TCD".
Item No :
C79458-L2428-A1Order(MOQ) :
1Payment :
EXWProduct Origin :
GermanyShipping Port :
Wuhan, Hubei, ChinaLead Time :
3-5 daysWeight :
0.5kgOverview
C79458-L2428-A1 Siemens Simatic PLC Module
New in stock
Origin from Germany
Payment Method: TT.Western Union
Shipping Method: DHL\UPS\Fedex\EMS\Others
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| Part Number | Description | Notes |
|---|---|---|
| C79458-L2428-A1 | TCD Detector Board (this item) | EOSR status; aftermarket only |
| PGC302 | Process Gas Chromatograph | The host analyzer system |
| Other PGC302 Detector Boards | FID, FPD, etc. | Different detector types for the same platform |
Important Compatibility Note: This board is specific to the Siemens PGC302 gas chromatograph and the TCD detector type. Verify the exact board number and detector configuration against your existing unit before ordering. No official Siemens technical datasheet is available in the public domain.
1 × Siemens C79458-L2428-A1 TCD Detector Board
Note: PGC302 analyzer, TCD cell, and connecting cables are sold separately.
In Stock – Limited aftermarket stock available
Tested – Each unit verified for functionality (refurbished units)
Warranty Included – Purchase with confidence
Technical Support – PGC302 compatibility assistance available
Q1: What is the Siemens C79458-L2428-A1?
It is a TCD (Thermal Conductivity Detector) board for the Siemens PGC302 process gas chromatograph. It processes the signal from the TCD cell used for gas component analysis .
Q2: Is this product still supported by Siemens?
No. It reached EOSR (End of Service and Repair) status on November 17, 2020 . Siemens no longer provides repair or replacement services.
Q3: What is the PGC302?
The PGC302 is a Siemens process gas chromatograph used for continuous analysis of gas streams in industrial processes, particularly in refinery, petrochemical, and chemical applications.
Q4: What does "WLD P302 E-1" mean?
WLD is the German abbreviation for Wärmeleitfähigkeitsdetektor (Thermal Conductivity Detector). "P302 E-1" refers to the PGC302 electronic board designation used in aftermarket channels .
Q5: What is the net weight and country of origin?
Net weight is 0.433 kg. Country of origin is Germany (DE) .
Q6: Can this board be repaired?
Siemens no longer offers repair services, but specialized industrial electronics repair companies may be able to repair the board. Contact a qualified repair provider with experience in Siemens analytical instrumentation.
Q7: What should I verify before ordering?
Always verify the exact part number (C79458-L2428-A1), confirm your PGC302 analyzer uses a TCD detector, check the condition and warranty of the specific unit offered, and ensure the supplier has experience with Siemens process gas chromatograph components.
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