Rotating Machinery Torque Measurement Solution – Vibro-Meter TQ402 | 111-402-000-013 | TQ Series
The Vibro-Meter TQ402 (P/N 111-402-000-013) is a precision non-contact torque sensor engineered for continuous, real-time torque measurement on rotating shafts in demanding industrial and aerospace environments. Designed by Vibro-Meter SA (a Meggitt company), the TQ402 eliminates the need for slip rings by using a non-contact signal transmission principle, delivering high-accuracy torque data without mechanical wear or signal degradation over time.
For procurement engineers sourcing critical condition-monitoring components, the TQ402 represents the benchmark in shaft torque measurement — combining Swiss precision engineering with robust EMI immunity and long-term reliability in harsh plant environments.
Where This Product Is Used
The TQ402 is specified across a wide range of high-value rotating machinery applications:
- Gas & Steam Turbines — Real-time shaft torque monitoring for power generation turbines; enables efficiency optimization and early detection of torsional anomalies.
- Compressor Trains — Continuous torque measurement on centrifugal and axial compressors in oil & gas processing plants and LNG facilities.
- Marine Propulsion Systems — Shaft power measurement on vessel propulsion shafts for fuel efficiency monitoring and drivetrain health assessment.
- Test Benches & Dynamometers — High-accuracy torque acquisition in engine and gearbox R&D test rigs where slip-ring solutions introduce unacceptable noise.
- Wind Turbine Drivetrains — Drivetrain torque monitoring for condition-based maintenance programs.
- Aerospace Ground Support Equipment — Torque verification on aircraft engine test stands and APU test facilities.
Technical Specifications
| Manufacturer | Vibro-Meter SA (Meggitt Group) |
| Part Number | 111-402-000-013 |
| Model / Series | TQ402 / TQ Series |
| Measurement Principle | Non-contact (magnetoelastic / inductive) |
| Measurement Parameter | Shaft torque (static & dynamic) |
| Signal Transmission | Non-contact — no slip rings required |
| Output Signal | Analog (voltage / current, per system configuration) |
| Operating Temperature | -40 °C to +120 °C (sensor head) |
| Protection Class | IP67 (sensor head) |
| Shaft Speed Range | 0 to high-speed rotating (consult datasheet for RPM limits) |
| Mounting | Flange / bracket mount, non-contact air gap installation |
| Weight | Approx. 400 g (sensor assembly) |
| Country of Origin | Switzerland |
| Compliance | CE Marked; designed to IEC/EN industrial standards |
Note: Full datasheet available upon request. Contact Konmask for application-specific configuration details.
Why Engineers Specify This Model
- Zero Mechanical Wear — Non-contact design eliminates slip rings, brushes, and associated maintenance intervals, reducing lifecycle cost significantly.
- High Signal Integrity — Inductive/magnetoelastic principle provides stable output immune to shaft speed variation and EMI from adjacent VFDs or switchgear.
- Continuous Operation — Suitable for 24/7 online monitoring in critical machinery protection systems without scheduled sensor replacement.
- Swiss Engineering Pedigree — Vibro-Meter SA has over 60 years of heritage in vibration and torque measurement for turbomachinery; TQ series sensors are trusted in nuclear, aerospace, and oil & gas sectors.
- Plug-Compatible with Vibro-Meter Systems — Integrates directly with VM600, VC Series, and compatible signal conditioning electronics, minimizing integration engineering effort.
- Harsh Environment Rated — IP67 protection and wide temperature range ensure reliable operation in outdoor, offshore, and high-humidity plant environments.
Complete System Bill of Materials
The TQ402 sensor typically operates as part of a complete torque measurement chain. Recommended companion components:
- Vibro-Meter TQ401 / TQ410 — Complementary torque sensor variants for different shaft diameters
- Vibro-Meter CM Series — Signal conditioning modules for TQ sensor output processing
- Vibro-Meter VM600 Rack — Machinery protection and monitoring system for multi-channel integration
- Vibro-Meter IOC4T — I/O card for torque channel integration in VM600 chassis
- Shielded signal cable (per Vibro-Meter cable specification) — For sensor-to-conditioner wiring
- Mounting bracket / adapter plate — Application-specific; consult Konmask for custom fabrication sourcing
Konmask can source complete BOM packages. Contact us with your system architecture for a consolidated quote.
Compliance & Industry Standards
- CE Marking — Electromagnetic Compatibility (EMC) Directive compliant
- Designed in accordance with IEC 61000 series (EMC immunity)
- Suitable for use in SIL-assessed machinery protection loops (consult SIL documentation)
- Meggitt / Vibro-Meter quality management: ISO 9001 certified manufacturing
- RoHS compliant materials
Quality Assurance & Sourcing
Konmask.com specializes in the procurement of genuine, traceable industrial automation and condition-monitoring components. Every TQ402 unit we supply is:
- Authenticity Verified — Sourced through authorized distribution channels or directly from OEM-certified suppliers; counterfeit screening applied.
- Condition Documented — New, surplus-new, or refurbished condition clearly stated at time of quotation with supporting documentation.
- Traceability Provided — Batch records, date codes, and certificates of conformance available on request.
- Functionally Tested — Where applicable, units undergo pre-shipment functional verification against OEM specifications.
- Securely Packaged — Anti-static, moisture-barrier packaging with shock-absorbing materials for international freight.
How to Source This Part
- Submit RFQ — Email [email protected] with P/N 111-402-000-013, required quantity, and delivery timeline.
- Receive Quote — Konmask responds within 1 business day with price, lead time, and stock condition details.
- Confirm Order — Issue PO against our proforma invoice; payment via T/T, PayPal, or credit terms (approved accounts).
- Shipment & Documentation — Units shipped with commercial invoice, packing list, CoC, and tracking number. DHL / FedEx express available.
- After-Sales Support — Technical assistance available post-delivery for installation and integration queries.
Application-Specific FAQ
Q: Can the TQ402 measure both static and dynamic torque?
A: Yes. The TQ402 is designed to capture both quasi-static and dynamic torque variations, making it suitable for transient load monitoring as well as steady-state efficiency measurement.
Q: What is the maximum shaft speed the TQ402 can accommodate?
A: Maximum RPM depends on shaft diameter and the specific configuration. Contact Konmask with your shaft geometry and speed parameters for a compatibility assessment.
Q: Does the TQ402 require a dedicated signal conditioner?
A: Yes. The TQ402 sensor head requires a compatible Vibro-Meter signal conditioning module (e.g., CM Series or VM600 IOC4T card) to process and output the torque signal. Konmask can supply the complete signal chain.
Q: Is the TQ402 compatible with third-party DCS/PLC systems?
A: The conditioned analog output (4–20 mA or voltage) from the signal conditioner is universally compatible with any DCS, PLC, or data acquisition system accepting standard analog inputs.
Q: What is the typical lead time for P/N 111-402-000-013?
A: Lead time varies by stock availability. Konmask maintains sourcing networks for Vibro-Meter components globally. Submit an RFQ for a real-time availability check.
Q: Can Konmask supply the complete TQ402 measurement system?
A: Yes. We can source the sensor, signal conditioner, cabling, and mounting hardware as a complete kit. Provide your system requirements and we will compile a full BOM quote.
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