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The Bently Nevada 200350 and 200355 Accelerometers are rugged, case-mounted seismic transducers designed for measuring vibration in harsh industrial environments. These accelerometers are specifically intended for use with the Trendmaster Pro Constant Current Direct Input Card (149811-02)* and the Seismic Direct Input Card (164746-01), offering reliable performance for condition monitoring and predictive maintenance applications.

The 200350 and 200355 models feature a hermetically sealed, stainless steel casing, providing exceptional durability and resistance to harsh conditions such as high temperatures, vibrations, and exposure to chemicals. This rugged construction ensures long-term reliability in demanding industrial settings.

Both accelerometers are equipped with a piezoelectric sensing device that generates a charge when subjected to vibrations. This charge is then converted electronically into a differential voltage signal that is directly proportional to the acceleration occurring along the sensitive axis of the transducer. This allows precise measurement of vibrations, which can be critical for detecting issues such as misalignment, imbalance, or bearing wear in rotating equipment.

Frequently Asked Questions

Q : What part of a machine is the 200355-02-00-00 best suited to monitor?

As a seismic accelerometer, it is designed to be hard-mounted to the casing or bearing housing of a machine to measure absolute structural vibration.

Q : What is the perpendicularity requirement for the drilled and tapped mounting hole?

The centerline of the tapped hole must be perpendicular to the mounting surface within 0.03 mm (0.001 inches).

Q : What type of connector is integrated into the top of the sensor?

It features an industry-standard 2-pin MIL-C-5015 top-exit hermetic connector.

Q : What is the absolute maximum non-destructive shock limit for this housing?

The internal crystal structure can survive a maximum mechanical shock of up to 5,000 g peak.

Product Applications

Power Industry: Vibration monitoring of conventional auxiliary equipment (such as forced draft fans, induced draft fans, feedwater pumps, circulating water pumps, coal mills, cooling tower fans, etc.) in thermal power plants, hydropower stations, wind power plants, and nuclear power plants.

Oil and Natural Gas: Monitoring of casing vibration and rolling bearing condition in oil production platforms, long-distance pipeline stations, and high-pressure natural gas compressor units.

Petrochemical/Chemical Industry: Online health management of various large pumps, mixers, separators, blowers, and centrifuges to prevent sudden and severe shutdowns.

Metallurgy and Mining: Real-time casing vibration monitoring of large rolling mills, blowers, blast furnace core pumps and valves in steel plants, and large vibrating screens and crushers in ore dressing plants.

Water Treatment and Environmental Protection: Vibration degradation trend analysis of large sewage treatment pumps, urban water supply multistage pumps, and aeration blowers.