Brand: Siemens

Siemens Maxum II 2-Cell Filament Detector Repair Kit 2020379-701

Name: Siemens Maxum II Filament Detector Kit 2020379-701
Brand: Siemens

Description

Overview: Restoring Filament Detector Performance Without Full Replacement

The Siemens Maxum II 2-Cell Filament Detector Repair Kit, part number 2020379-701, provides the internal components needed to restore a degraded 2-cell filament thermal conductivity detector (TCD) on the Siemens Maxum Edition II process gas chromatograph without requiring a full detector assembly replacement. This repair kit is the maintenance counterpart to the complete filament detector assembly, allowing analyzer technicians to service an existing detector body when only the internal filament elements or seals have degraded.

As an independent specialized supplier of Siemens Maxum Edition II analyzer spare parts, Seven Star LLC sources and supplies the 2-cell filament detector repair kit 2020379-701 to refineries, gas plants, and petrochemical complexes across Oman and the wider GCC. Stocking this kit alongside the complete detector assembly gives maintenance teams the flexibility to choose the most cost-effective repair path for each TCD fault.

Working Principle: Filament Element Renewal

A 2-cell filament TCD relies on two precisely matched heated filament elements – one reference cell and one measurement cell – whose relative resistance change in response to carrier gas thermal conductivity forms the basis of the detector’s signal. Over time and repeated thermal cycling, filament elements can drift out of calibration balance, develop contamination, or fail outright, degrading the detector’s baseline stability and sensitivity even though the surrounding detector body and electrical connections remain serviceable.

The repair kit provides the internal parts – filament elements and associated sealing hardware – needed to renew the detector’s sensing function while reusing the existing detector body, feed-through connections, and oven mounting. This targeted repair approach restores the detector’s thermal-conductivity measurement accuracy without the cost and downtime of a full assembly swap, provided the detector body itself has not suffered mechanical damage.

Engineering Design of the Repair Kit

The 2020379-701 kit is packaged as a complete set of the wear and consumable components inside the 2-cell filament TCD, sized and specified to match the current-generation filament detector assembly used on the Maxum Edition II. Because filament elements must be closely matched to maintain balanced Wheatstone-bridge measurement behavior, the kit supplies factory-matched components rather than individual filaments sourced separately.

Installation follows the same detector-opening procedure used for full assembly service – the analyzer must be fully de-energized and cooled before the TCD housing is opened, and care must be taken to avoid contaminating or scratching the machined sensing surfaces during the filament replacement, following the manufacturer’s documented procedure.

Key Features

The 2-Cell Filament Detector Repair Kit 2020379-701 provides a cost-effective path to restoring TCD performance. Key characteristics include:

Complete set of factory-matched filament elements and sealing hardware for 2-cell filament TCD renewal.
Enables detector repair without replacing the full assembly when the detector body remains serviceable.
Restores balanced reference/measurement cell behavior for accurate thermal conductivity measurement.
Compatible with the current-generation Maxum Edition II 2-cell filament detector configuration.
Genuine Siemens Maxum II part number for correct fit and calibration compatibility.

Industrial Applications

The repair kit is used during scheduled TCD maintenance and in response to detector baseline drift or sensitivity loss on Maxum Edition II analyzers configured with a 2-cell filament detector, whether used for general process gas analysis or as an inter-column detector alongside an FID or FPD channel. Maintaining ready access to this kit allows analyzer maintenance teams to service filament detector faults during a single planned outage rather than waiting on a full assembly replacement.

Seven Star LLC supports refinery instrumentation teams, gas processing operators, and petrochemical maintenance departments across Oman, Muscat, Sohar, and the broader GCC region with sourcing of Maxum Edition II detector repair hardware, helping analyzer houses manage both cost and downtime during TCD servicing.

Technical Specifications

The table below summarizes the core specifications of the Siemens Maxum II 2-Cell Filament Detector Repair Kit as supplied by Seven Star LLC.

Parameter	Specification
Model / Part Number	2-Cell Filament Detector Repair Kit, P/N 2020379-701
Detector Type	Thermal Conductivity Detector (TCD), 2-cell filament
Kit Contents	Factory-matched filament elements and sealing hardware
Use Case	In-place detector repair without full assembly replacement
Target Platform	Siemens Maxum Edition II Process Gas Chromatograph
Hardware Condition	New, genuine Siemens part number

Why Choose Seven Star LLC for Maxum II TCD Repair Kit Sourcing

Deciding between a filament repair kit and a full detector assembly replacement is a real cost-and-downtime judgment call – the repair kit only restores performance correctly when the detector body and feed-through connections are still mechanically sound, and using it on a body with underlying damage wastes the repair labor without solving the actual fault. Seven Star LLC’s sourcing team discusses the specific TCD symptoms (baseline drift, sensitivity loss, or outright failure) with the customer before recommending the repair kit over a full assembly, helping analyzer technicians choose the more cost-effective path for each specific fault rather than defaulting to the more expensive option. We also help refinery and gas plant maintenance departments across Oman keep both the repair kit and the full assembly in a planned spares strategy, and coordinate delivery so a TCD fault can be resolved within a single planned outage rather than a multi-visit repair.

Request a Quote for Siemens Maxum II 2-Cell Filament Detector Repair Kit 2020379-701

Seven Star LLC is a dedicated supplier of Siemens Maxum Edition II process gas chromatograph spare parts and detector repair kits throughout Oman and the GCC. To request a formal B2B quotation, verify current availability and lead time, or confirm compatibility of the 2-Cell Filament Detector Repair Kit 2020379-701 with your specific Maxum II configuration, contact our instrumentation sourcing team today.

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About brand

Most Siemens automation parts are bought by article number, the string beginning 6ES7, 6AV2 or 6GK5 printed on every module. Founded in 1847 and headquartered in Munich, Siemens builds the SIMATIC controllers, SCALANCE networks and SINAMICS drives that plant engineers meet on almost every site. Seven Star LLC, an independent supplier, lists Siemens PLC and I/O modules, HMI panels, industrial Ethernet switches, drives, protection relays, temperature transmitters and gas analyzer spare parts for projects in Oman and the GCC.

Siemens product families on this page

Controller hardware covers the SIMATIC S7-1200 (CPU 1214C with SM 1223 signal modules) and the S7-1500 (CPU 1515-2 PN), with ET 200SP and ET 200M distributed I/O and their IM 155-6 and IM 153-2 interface modules. Operator panels include the KTP700 Basic and TP700 Comfort. SCALANCE XC208 managed switches handle industrial Ethernet. Drives are represented by the SINAMICS G120C compact inverter and the G120X for pumps and fans. From the power side come the SIPROTEC 7SJ85 feeder protection relay and SIVACON S8 switchboards, and from process instrumentation the SITRANS TH320 head-mounted temperature transmitter.

Where Siemens equipment is used

SIMATIC controllers and ET 200 I/O run packaged units, skids and whole process lines in water treatment, oil and gas, cement, food and manufacturing plants. SINAMICS drives control pumps, fans and conveyors, SCALANCE switches form the control network, and SIPROTEC relays protect medium voltage feeders and motors.

Ordering Siemens parts: what we need

Send the complete article number, the functional status or version printed on the module and, for CPUs, the firmware version your project was written for. For drives add power, supply voltage, filter option and fieldbus version. For SIPROTEC relays the long order number or product code is required, because it fixes the hardware and function package. A nameplate photo answers most of these points at once.

Frequently Asked Questions

What does the 2020379-701 repair kit contain?

The kit contains factory-matched filament elements and sealing hardware needed to renew a 2-cell filament TCD without replacing the full detector assembly.

When should this kit be used instead of a full detector replacement?

It is used when the detector body and electrical connections remain serviceable but the internal filament elements have drifted, become contaminated, or failed, offering a lower-cost repair path.

Why must the filament elements be factory-matched?

The 2-cell TCD relies on balanced Wheatstone-bridge behavior between the reference and measurement filaments, so mismatched elements would compromise measurement accuracy.

What precautions apply when installing this kit?

The analyzer must be fully de-energized and cooled before opening the TCD housing, and the machined sensing surfaces must be handled carefully to avoid contamination or scratching.

Does Seven Star LLC supply this part across the GCC?

Yes, Seven Star LLC sources and supplies the Siemens Maxum II 2-Cell Filament Detector Repair Kit 2020379-701 to refinery, gas processing, and petrochemical customers across Oman and the wider GCC region.

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