Bently Nevada 74712-06-12-04-CN High-temperature two-wire transducer

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Bently Nevada 74712-06-12-04-CN

The Bently Nevada 74712-06-12-04-CN is a high-temperature, two-wire Seismoprobe® velocity transducer designed to measure absolute vibration (relative to free space) on bearing housings, machine casings, or structural components . It belongs to the Bently Nevada 74712 series, which is part of the broader Seismoprobe family of velocity transducers. This transducer operates on the moving-coil principle . As the transducer vibrates with the machine casing, a coil moves within a magnetic field, generating a voltage output that is directly proportional to the vibration velocity of the transducer . This self-generating design eliminates the need for external power, making it convenient for both permanent installations and portable measurement applications.

➫ More Detailed

Transducer Mounting Angle: 06=0 ±100, 10 Hz (600 cpm)

Mounting Base: 12=Isolated circular 1/2-20 UNF-2A

Connector: 04=Side mount

Agency Approval: Approvals country specific

Sensitivity: 20 mV/mm/s (500 mV/in/s) ±5%

Operating Temperature: -29℃ to +204℃ (-20℉ to +400℉)

Storage Temperature: -29℃ to +204℃ (-20℉ to +400℉)

Application

✓ Power Generation: Monitoring casing vibration on gas turbines, steam turbines, hydroelectric turbines, and generators. The high-temperature rating (+204°C) makes this transducer ideal for turbine casings and bearing housings where temperatures exceed standard sensor limits .

✓ Oil & Gas Industry: Used on natural gas compressors (centrifugal and reciprocating), refinery compressors, pipeline pumps, and LNG plant rotating equipment. The moving-coil design is less sensitive to impulsive excitations, making it suitable for reciprocating machinery applications .

✓ Petrochemical & Chemical Processing: Monitoring critical pumps, compressors, blowers, and mixers in high-temperature process environments .

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