Product Specifications

Model	TQ403
Part Number	111-403-000-012
Product Type	Proximity Transducer
Measurement Principle	Eddy Current, Non-Contact
Measurement Range	12 mm
Probe Coil Diameter	Ø18 mm
Thread Type	M20 × 1.5
Body Length	36 mm
Unthreaded Length	0 mm
Integral Cable Length	1 m ±10%
Probe Operating Temperature	-40°C to +180°C
Short-Term Survival Temperature	Up to +220°C
Cable Operating Temperature	-40°C to +200°C

Vibro-Meter TQ403 111-403-000-012 is a non-contact proximity transducer designed for highly accurate shaft displacement, vibration, eccentricity, and position measurements in rotating machinery. As part of the TQ403 / EA403 / IQS450 Proximity Measurement System, it is widely used in steam turbines, gas turbines, compressors, pumps, generators, and other critical rotating equipment for machinery protection and condition monitoring applications.
The TQ403 utilizes eddy-current measurement technology and features an 18 mm sensing coil, a robust stainless-steel probe body, and a high-temperature Torlon sensing tip. It is designed to operate with an IQS450 signal conditioner and provides a measurement range of up to 12 mm, delivering stable and reliable performance even in harsh industrial environments.

Frequently asked questions：

Q1: What is the Vibro-meter TQ403 111-403-000-012 Industrial Proximity Sensor used for?
A1: The TQ403 Industrial Proximity Sensor is used for non-contact measurement of shaft displacement, shaft position, vibration, and runout in rotating machinery monitoring and protection systems.

Q2: What thread type does the TQ403 sensor use?
A2: The TQ403 sensor features an M20 × 1.5 thread, allowing secure installation in a wide range of industrial applications.

Q3: What is the body length of the TQ403 sensor?
A3: The TQ403 has a body length of 36 mm, making it suitable for installations where space is limited.

Q4: What is the TQ403 cable operating temperature range?
A4: The TQ403 sensor cable is rated for operation from -40°C to +200°C (-40°F to +392°F), enabling reliable performance in harsh environments.

Q5: What vibration resistance does the TQ403 provide?
A5: The TQ403 sensor is designed to withstand 5 g peak vibration within a frequency range of 10 to 500 Hz, ensuring stable operation in demanding machinery applications.

Product Applications

Thermal/hydropower plants
Petrochemical and natural gas plants
Heavy industry and manufacturing plants

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We provide a 12-month warranty and worldwide stock availability to guarantee smooth integration and prompt delivery for your daily operations.

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Our Brands Series

① ABB: AC800M, AC800F, AC31, 800xA, Bailey INFI 90, DSQC robot, Advant OCS, H&B Freelance
② Bently Nevada: 3500 Monitoring, 3300 Monitoring, 3300 XL 8mm Proximity Transducer, 330180 Proximity
③ Honeywell: Alcont, Experion LS, Experion PKS, Experion HS, Plant Scape, TDC2000, TDC3000, TPS
④ GE: IS200/DS200 series Excitation system card, IC693/IC695/IC697/IC698/IC200/IC660/IC670 CPU module
⑤ Triconex: 3805E , 3504E , 3706A , 4210 , 4351B , 8110 , 3501E , 3664
⑥ Siemens: MICROMASTER, Simadyn, Simatic S5, Simatic S7, SIMODRIVE, SIMOVERT, SINAMICS, Texas Instruments
⑦ Emerson: DeltaV, Ovation, EPRO
⑧ Schneider: Quantum 140 series, Modicon Premium
⑨ HIMA: F8650X, F7105A , F6217 , F3237 , F3330 , F8628X ,F6205
⑩ Invensys Foxboro: FCP270, FCP280, CP30B, FBMSSW, FBMSVH, P0903CV, FCM10E

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