Product Overview
Crafted with a stainless steel body (AISI 316L) and a Torlon (polyamide-imide) sensor tip, the TQ402 is built to withstand extreme industrial environments, making it a reliable choice for heavy-duty applications. Its integral coaxial cable, terminated with a self-locking miniature connector, ensures stable signal transmission, while customizable options (thread type, cable length, and protective sheaths) allow adaptation to diverse installation requirements.
Product Specifications
Parameter | Details |
Brand | VM |
Operating Temperature | -40 to +180°C (drift <5%); +180 to +220°C (short-term survival) |
Ex Zone Temperature | -40 to +195°C (transducer and cable) |
Protection Rating | IP68 (transducer tip and integral cable, per IEC 60529) |
Vibration Resistance | 5 g peak (10–500 Hz, per IEC 60068-2-26) |
Shock Resistance | 15 g peak (half sine-wave, 11 ms duration, per IEC 60068-2-27) |
Sensor Coil | Ø8 mm wire coil, encapsulated in high-temperature epoxy |
Cable Type | 70 Ω coaxial cable with FEP coating, Ø3.6 mm |
Integral Cable Length | 0.5 m (±50 mm), 1.0 m (±100 mm), 1.5 m (±150 mm), 2.0 m (±200 mm), 5.0 m (±500 mm), 10 m (±1000 mm) |
Body Thread Options | M10×1, M14×1.5, M16×1.5, 3/8″-24UNF, 5/8″-18UNF, 1/2″-20UNF |
Body Length | 20–250 mm (1 mm increments) |
Unthreaded Length | 0–230 mm (1 mm increments) |
Features
High Durability
Stainless Steel Construction: The AISI 316L body resists corrosion, while the Torlon tip withstands high temperatures and mechanical stress, ensuring longevity in harsh industrial settings.
Wide Temperature Range: Operates reliably from -40°C to +180°C, with short-term survival up to +220°C, making it suitable for extreme heat environments.
Precision Measurement
Non-Contact Sensing: Eliminates wear and tear from physical contact, providing consistent, accurate data on shaft displacement and vibration.
Interchangeable Components: Works seamlessly with the IQS900 signal conditioner, allowing easy replacement of parts without recalibration.
Customizable Design
Flexible Cable Options: Choose from 0.5 m to 10 m integral cables, with optional extension via EA402 cables for extended reach.
Protective Add-Ons: Available with flexible stainless steel hoses (mechanical protection) or FEP sheaths (chemical resistance), adapting to diverse environmental needs.
Explosion-Proof Versions: Options for Ex i and Ex nA ratings, suitable for hazardous areas.
Reliable Signal Transmission
Self-Locking Connectors: Ensure secure, vibration-resistant connections, minimizing signal loss in high-vibration machinery.
Applications
The TQ402 VM Proximity Transducer is ideal for monitoring rotating equipment across industries, including:
Power Generation: Steam turbines, gas turbines, and alternators, where precise axial position and vibration data prevent catastrophic failures.
Oil & Gas: Turbocompressors and pumps, ensuring stable operation in high-pressure, high-temperature environments.
Manufacturing: Industrial motors and rotating shafts, optimizing maintenance schedules through real-time displacement tracking.
Marine & Heavy Machinery: Hydraulic turbines and large-scale rotating components, where durability and accuracy are critical.
FAQ
What is the difference between the TQ402 and TQ412?
The TQ412 is designed for reverse-mount applications, while the TQ402 features an integral coaxial cable with a front-facing sensor tip, suitable for standard installations.
Can the TQ402 be used in explosive environments?
Yes. It offers Ex i and Ex nA versions (selected via ordering code) to meet safety standards in hazardous zones.
How do I choose the right cable length?
Select an integral cable length (0.5 m to 10 m) based on installation distance. For longer reaches, pair with an EA402 extension cable—total system length equals integral + extension cable length.
What materials are compatible with the TQ402’s target?
The target must be metallic, as the transducer relies on eddy current principles for measurement.
Is calibration required when replacing components?
No. The TQ402 and IQS900 form a pre-calibrated system, allowing interchangeable parts without re-calibration.
The TQ402 VM Proximity Transducer combines rugged design, precision, and flexibility, making it a top choice for industrial machinery monitoring. Its adaptability to extreme conditions and customizable features ensure it meets the unique needs of diverse applications, from power plants to manufacturing facilities.
