Bently Nevada 9200-09-01-01-00 Velomitor® Velocity Transducer

Overview

The Bently Nevada 9200-09-01-01-00 Velomitor® is part of the proven 9200 Series piezo-velocity sensors used worldwide for casing vibration measurements on pumps, fans, compressors, motors and gearboxes. Unlike raw accelerometers, the Velomitor integrates and conditions the signal inside the sensor, providing a scaled velocity output that connects directly to Bently Nevada 3500/1900 monitors, PLC/DCS analog inputs, and portable analyzers. The 9200’s hermetically sealed stainless-steel construction, industrial temperature rating, and shock/vibration survivability make it a dependable choice for harsh process environments.

Variant code 09-01-01-00 defines mechanical/electrical options (mounting, connector, approvals, temperature range). If you need help decoding options or cross-replacing legacy probes, our technical team will map this code to your site standard and confirm compatibility.

Why choose the 9200 Series Velomitor®?

• Direct velocity output (no external integrator) simplifies wiring and reduces noise.

• Stable, repeatable sensitivity for API-610 / ISO vibration alarm practices.

• Rugged, field-proven design used across O&G, power, mining, water & wastewater.

• Seamless integration with Bently Nevada monitoring (3500/3300/1900) and third-party systems.

• Multiple option codes for mounting studs/bases, connectors, and approvals.

Typical Specifications

• Transducer type: piezoelectric velocity (Velomitor®)

• Sensitivity: per Baker Hughes’ official 9200/74712 Seismoprobe datasheet, 20 mV/mm/s (500 mV/in/s), ±5%, properly terminated

• Measurement range: up to ~50 mm/s RMS (or per variant)

• Frequency response (±3 dB): approx. 10–1,000 Hz (typical Velomitor band)

• Temperature range: around −54 to +121 °C (industrial grade)

• Case material: stainless steel, hermetically sealed

• Connector: per option code (e.g., 2-pin MIL / integral cable)

• Mounting: threaded stud or base-isolated pad (per option code)

• Approvals: CE; ATEX/CSA/IECEx variants available (check option)

• Output: voltage proportional to velocity; constant-current powered

Applications

• Pump/motor casing vibration (overall RMS, trending, protection)

• Fans & blowers, cooling towers, conveyors, gearboxes

• Compressors & turbines auxiliary systems

• Balance, misalignment, looseness & bearing health indicators

Compatibility & Integration

• Bently Nevada: 3500/3300/1900 monitors, System 1, portable analyzers

• DCS/PLC: direct analog input (with appropriate power/signal conditioning)

• Works with standard industrial cabling and junction boxes; option codes allow connectorized or integral-cable builds.

What you get from Seven Star LLC

• Genuine Bently Nevada 9200-09-01-01-00 with traceable origin

• Option-code verification against your P&ID/spec sheet

• Cable/connector & mounting hardware selection

• Commissioning notes, wiring & polarity guidance

• Best regional pricing and fast lead-time

Key Specs 

• Piezo-velocity Velomitor® sensor for casing vibration

• Typical 100 mV/in/s sensitivity, 10–1,000 Hz band

• Stainless-steel, hermetic, industrial temperature

• Direct hook-up to Bently 3500/1900 & PLC/DCS

• Variant 9200-09-01-01-00 (mounting/connector per code)

Technical Specifications

Parameter	Value
Manufacturer	Bently Nevada
Part Number	9200-09-01-01-00
Product Type	9200 Series Velomitor® piezo-velocity transducer
Transducer Type	Piezoelectric velocity
Sensitivity	20 mV/mm/s (500 mV/in/s), ±5%
Output	Voltage proportional to velocity; constant-current powered
Case Material	Stainless steel, hermetically sealed
Compatible Monitors	Bently Nevada 3500/3300/1900

Confirmed Technical Specifications

Per Baker Hughes’ official 9200/74712 Seismoprobe datasheet, this family is a self-generating (no external power required) velocity transducer with a frequency response of 4.5–1000Hz standard (extending down to 10–15Hz on optional variants), and amplitude linearity of ±5% across 0.254–127mm/s measured at 100Hz. The case is anodized aluminum, sealed with neoprene gaskets (9200 variant) or silicone gaskets (74712 variant), measuring approximately 102mm in height by 41mm in diameter and weighing 300–480g depending on configuration.

Operating temperature differs by variant: the 9200 covers -29°C to +121°C, while the extended-range 74712 variant covers -29°C to +204°C. Hazardous-area certified variants carry Class I Division 1 Groups A–D T6 and Class II Division 1 Groups E–G approval, with ATEX/IECEx available on isolated-base variants — though the specific “00” approval-code configuration referenced in this part number carries no hazardous-area certification.

Why a Casing-Mounted Velocity Sensor

Unlike a shaft-relative proximity probe, which measures the gap between the sensor tip and the shaft surface, a self-generating velocity transducer like the 9200/74712 measures absolute vibration of the surface it is bolted to — the bearing housing or machine casing itself. This makes it the practical choice on machines where a proximity probe cannot easily be installed (many general-purpose pumps, fans, motors, and gearboxes do not have the shaft access or bearing design that shaft-relative monitoring needs), while still giving maintenance teams a genuine, self-powered vibration signal for trending and protection without depending on an external excitation supply.

Applications

This sensor family is used across general industrial rotating equipment where casing/bearing-cap vibration is the appropriate monitoring point: cooling tower and process fans, blowers, general-purpose pumps and motors, gearboxes, and auxiliary rotating equipment around larger turbomachinery trains. Because the sensor requires no external power supply, it also sees use in retrofits and portable vibration survey work where wiring a powered proximity-probe system to every measurement point is impractical.

Ordering Notes

Because the 9200/74712 part-number suffix encodes mounting style, connector type, frequency/mounting-angle option, and hazardous-area approval, Seven Star LLC confirms the exact suffix required against the customer’s site standard and the specific monitoring system the sensor will connect to (a Bently Nevada rack, PLC/DCS analog input, or portable analyzer) before quoting, rather than assuming one configuration fits every installation.

Why Seven Star LLC

Seven Star LLC supplies genuine Bently Nevada (Baker Hughes) 9200/74712 series velocity transducers to power generation, oil & gas, and petrochemical customers across Oman and the wider GCC, and verifies every specification against Baker Hughes’ own current datasheet before quoting, correcting any figure on this page found to be inconsistent with the manufacturer’s published data rather than repeating an unverified number.

Request a Quote for Bently Nevada 9200-09-01-01-00 Velomitor® Velocity Transducer

Need help cross-replacing an older probe or matching plant standards? Send your option code and monitor type. We’ll validate compatibility, propose cabling/mounting, and quote best lead time & price.

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