Vibro-Meter AF70982 111-412-000-012 Reverse Mount Eddy Current Proximity Transducer

Parameter
Model: AF70982 111-412-000-012 Reverse Mount Eddy Current Proximity Transducer
Measuring Ranges: 2 m or 4 m systems supported
frequency response: DC to 20 kHz (–3 dB)
Temperature range: −40 to +180 °C
Sensing Coil & Tip: 8 mm sensing coil encapsulated in a Torlon® tip
Environmental Protection Rating: IP68

Description

The Vibro-Meter AF70982 111-412-000-012 is a TQ412 reverse-mount non-contact eddy-current proximity transducer designed for continuous measurement of the relative displacement of rotating machine shafts. Operating as part of the TQ412/EA402/IQS450 proximity measurement system, it provides accurate non-contact measurement of shaft vibration, axial position, eccentricity, and the gap between the probe tip and a metallic target. The complete system complies with the recommendations of API 670 for machinery protection and condition monitoring applications. The transducer features a reverse-mount configuration with an imperial threaded stainless-steel body, an 8 mm sensing coil encapsulated in a Torlon® tip, and an integral coaxial cable terminated with a self-locking miniature coaxial connector. When combined with a compatible EA402 extension cable and IQS450 signal conditioner, it forms a calibrated measurement system with interchangeable components, supporting 2 m or 4 m measuring ranges and a frequency response from DC to 20 kHz (–3 dB). Designed for demanding industrial environments, the AF70982 111-412-000-012 operates continuously over a temperature range of −40°C to +180°C and is rated IP68 for environmental protection. 

Frequently asked questions

Q:What is the Vibro-Meter AF70982 111-412-000-012?
A:The AF70982 111-412-000-012 is a TQ412 reverse-mount non-contact eddy-current proximity transducer designed for measuring the relative displacement, vibration, and axial position of rotating machine shafts. It is used as part of the TQ412/EA402/IQS450 proximity measurement system.

Q:Can the AF70982 111-412-000-012 be used as a standalone sensor?
A:No. The transducer must be used together with a compatible EA402 extension cable and an IQS450 signal conditioner to form a complete, calibrated proximity measurement system.

Q:What are the main construction features of the AF70982 111-412-000-012?

A:The transducer features a reverse-mount stainless-steel body, an 8 mm Torlon® sensing tip, and an integral FEP-insulated coaxial cable terminated with a self-locking miniature coaxial connector for reliable operation in industrial environments.

Application areas

The Vibro-Meter AF70982 111-412-000-012 is primary application areas center on machinery protection and condition monitoring inside heavy-duty, high-speed rotating equipment where mounting space inside the machine housing is highly restricted.The exact application areas include:

• Power Generation (Steam & Gas Turbines): Installed directly inside tight turbine bearing housings where space is limited and hot lubrication oils are constantly sprayed.
• Oil & Gas (Turbo-Compressors & Expanders): Deployed on critical high-pressure hydrocarbon process gas compressors, where internal machinery components must be sealed from external atmospheres.
• Heavy Petrochemical Plants: Used on large-scale multi-stage process pumps and high-load industrial gearboxes where physical vibration must be detected instantly to trigger safety trips.

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