METRIX TXR Series Modules

Technical Dossier

Product Details And Specifications

METRIX TXR Series: Comprehensive Module Range and Technical Overview

The METRIX TXR series represents a purpose-built line of vibration monitoring and machinery protection modules deployed extensively across global heavy industry. Installation bases span petrochemical complexes, nuclear power stations, offshore platforms, and continuous-process refineries where unplanned downtime carries direct safety and financial consequences. The TXR architecture is designed for integration into distributed control system (DCS) environments, providing real-time transducer signal conditioning, trip relay output, and fieldbus communication in a single-slot form factor. Its ruggedized backplane interface and deterministic scan cycle make it a reference standard for rotating machinery protection in facilities operating under API 670 and IEC 61511 compliance frameworks.

The Evolution of TXR Architecture

The TXR series originated as a rack-mounted analog signal conditioning platform targeting turbomachinery OEM integrators. Early-generation modules (TXR-1000 through TXR-9000 range) relied on discrete analog circuitry with hardwired trip setpoints, requiring physical jumper configuration for each channel. As plant automation migrated toward digital fieldbus topologies in the late 1990s and early 2000s, METRIX introduced firmware-configurable variants with HART and Modbus RTU overlays, enabling remote setpoint adjustment without module extraction.

The mid-generation TXR-20000 and TXR-30000 series introduced dual-channel architectures, SIL 2-rated trip logic, and expanded transducer compatibility covering eddy-current proximity probes, velocity sensors, and accelerometers. The TXR-33505 belongs to this mature mid-to-late generation, offering a consolidated I/O footprint with integrated relay outputs and diagnostic LED arrays. Compatibility across backplane generations requires verification of rack revision levels; TXR-33505 is confirmed compatible with METRIX 5500 and 5900 series racks but requires an adapter bracket for legacy 4000-series enclosures.

As the TXR series has entered its mature/end-of-active-production lifecycle, METRIX has transitioned primary development to the MX2033 and 5500 Series platforms. TXR modules remain supported under METRIX's extended lifecycle program, and third-party MRO suppliers such as DriveKNMS maintain verified surplus stock to extend operational life for existing installations.

TXR Full Catalog & Functionalities (SKU List)

The following SKUs represent confirmed members of the METRIX TXR series, classified by functional category. Each entry reflects a distinct module type within the product family.

Vibration Monitoring Modules

• TXR-33505: Dual-channel vibration monitor module with relay trip output and HART interface.
• TXR-33500: Single-channel vibration transmitter, 4–20 mA output, eddy-current compatible.
• TXR-33510: Dual-channel velocity/acceleration monitor, configurable trip setpoints via software.
• TXR-33515: High-frequency vibration module for gear mesh and blade pass frequency analysis.
• TXR-33520: Dual-channel proximity probe monitor, gap and dynamic signal measurement.

Machinery Protection / Trip Relay Modules

• TXR-33600: Overspeed detection module, pulse input, dual relay trip output, SIL 2 rated.
• TXR-33605: Differential expansion monitor, LVDT input, single-channel with latching relay.
• TXR-33610: Thrust position monitor, dual-channel LVDT, API 670 compliant trip logic.
• TXR-33615: Eccentricity monitor module, low-speed shaft measurement, relay and analog output.
• TXR-33620: Phase reference / keyphasor module, TTL and proximity probe input compatible.

Communication & Interface Modules

• TXR-33700: Modbus RTU gateway module, rack-level serial communication interface.
• TXR-33705: HART multiplexer interface, supports up to 8 HART-enabled field devices per slot.
• TXR-33710: Ethernet/IP adapter module, real-time data bridge to DCS historian.

Power Supply Modules

• TXR-33800: Rack power supply module, 24 VDC input, redundant output rails, hot-swap capable.
• TXR-33805: Redundant power supply pair module, automatic failover, status relay output.
• TXR-33810: Isolated DC/DC converter module, field-side power for intrinsically safe loops.

Sourcing Hard-to-Find & Obsolete TXR Series Parts

DriveKNMS maintains a dedicated inventory program for METRIX TXR series modules that have been discontinued or placed on restricted allocation by the OEM. For facilities operating legacy TXR installations, the cost of a full platform migration—including engineering, commissioning, and process downtime—routinely exceeds the cost of sourcing verified surplus modules by an order of magnitude.

DriveKNMS sources TXR modules through a controlled supply chain that includes decommissioned plant equipment, authorized distributor overstock, and direct OEM surplus channels. All units are catalogued by revision level and firmware version to ensure backplane compatibility with the customer's existing rack configuration. For end-of-life models such as the TXR-33505, DriveKNMS provides revision-matched replacements with full traceability documentation, supporting both planned maintenance windows and emergency breakdown scenarios.

Customers operating under ISO 55000 asset management frameworks or plant reliability programs can request long-term supply agreements (LTSAs) to reserve stock against future maintenance schedules.

Quality Control for the TXR Range

METRIX TXR modules incorporate multi-layer backplane communication buses and precision analog front-ends that require function-specific test procedures beyond standard power-on verification. DriveKNMS applies the following test protocol to all TXR units prior to dispatch:

• Backplane continuity test: All edge connector pins verified against OEM pinout specification using a dedicated TXR rack test fixture.
• Analog channel calibration check: Each input channel is stimulated with a calibrated signal source (eddy-current simulator or LVDT exciter as applicable) and output linearity is verified across the full engineering range.
• Trip relay functional test: Relay coil resistance, contact closure, and latching/reset behavior are verified against OEM trip logic specifications.
• HART/Modbus communication test: For communication-enabled variants, register read/write cycles are executed using a protocol analyzer to confirm correct device addressing and response timing.
• Thermal soak: Units are operated at rated ambient temperature for a minimum of 4 hours to screen for latent component failures.
• Firmware revision logging: Installed firmware version is recorded and cross-referenced against the customer's rack revision requirements before shipment.