Product Brief: Bently Nevada 9200-06-01-11-04 (9200 Series Velocity Transducer)
The 9200-06-01-11-04 is a velocity transducer (seismic pickup) from the Bently Nevada 9200 Series. It is a self-generating, moving-coil transducer that measures absolute (case) vibration velocity on rotating machinery. This model is specifically designed for vertical mounting orientation and is commonly used on pumps, motors, fans, compressors, and turbines where bearing housing or casing vibration monitoring is required.
The 9200 series is a rugged, passive device requiring no external power supply. It outputs a voltage signal proportional to the velocity of the machine case or bearing housing, typically connected to a compatible monitor (e.g., 3500/42, 1900/65A, or a PLC/DCS with analog input).
Part Number Breakdown
| Position | Code | Meaning |
|---|---|---|
| 9200 | - | 9200 Series Velocity Transducer |
| 06 | - | Mounting orientation: Vertical (6 = vertical; 5 = horizontal; other numbers = different sensitivities or connector types) |
| 01 | - | Connector type: Integral conduit fitting (with 2-pin MS connector or flying leads, depending on suffix) |
| 11 | - | Sensitivity: 11.4 mV/mm/s (approx. 290 mV/in/s) – standard for 9200 series |
| 04 | - | Cable length: 4.0 meters (13.1 feet) (integral cable) |
Key Features
Self-generating (passive) – no external power required.
Moving coil (velocity) – measures dynamic motion of machine case/bearing housing.
Vertical mounting orientation – optimized for installation on vertical machine surfaces.
Rugged stainless steel housing – suitable for industrial environments.
Wide frequency response – covers typical machine vibration frequencies (10 Hz to 2 kHz).
Integral cable – armored, oil-resistant, and flexible.
Compatible with Bently Nevada monitors (3500/42 seismic input, 1900/65A) and third-party PLCs/DCS with analog inputs (4–20 mA loop-powered converters may be required).
Parameters (Table)
| Parameter | Specification |
|---|---|
| Model Series | 9200 (Velocity Transducer) |
| Part Number | 9200-06-01-11-04 |
| Product Type | Velocity transducer (seismic pickup) – vertical mount |
| Dimensions (Height x Width x Depth) | 76 mm (height) x 38 mm (width at base) x 38 mm (depth) – approx. (3.0 in x 1.5 in x 1.5 in) |
| Overall Height (including connector) | 120 mm (4.7 in) approx. |
| Weight (approx.) | 0.45 kg (1.0 lb) |
| Mounting Orientation | Vertical (suffix 06) |
| Mounting Thread | 1/4-28 UNF (standard) – stud supplied |
| Connector Type | Integral conduit fitting with 2-pin MS connector (or flying leads) |
| Integral Cable Length | 4.0 meters (13.1 ft) – armored, PVC or Teflon jacket |
| Sensitivity | 11.4 mV/mm/s (290 mV/in/s) ±5% at 100 Hz |
| Frequency Response | 10 Hz to 2 kHz (±5%); usable down to 4 Hz (-3 dB) |
| Dynamic Range | Up to 76 mm/s (3 in/s) peak – typical |
| Maximum Output Voltage | 3.0 V peak (linear range) |
| Transverse Sensitivity | < 5% of axial sensitivity |
| Operating Temperature | -40°C to +85°C (-40°F to +185°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Shock Limit | 100 g peak (11 ms half-sine) |
| Coil DC Resistance | 200 Ω typical |
| Output Type | Analog voltage (AC coupled) |
| Enclosure Material | Stainless steel (316 series – corrosion resistant) |
| Ingress Protection | IP67 (when properly sealed) |
| Approvals | CE, CSA, ATEX (non-incendive / safe area) – not intrinsically safe |
Application Scenarios (use cases)
| Application Area | Description |
|---|---|
| Vertical Centrifugal Pump (Bearing Housing) | Mounted vertically (suffix 06) on pump bearing housing to monitor overall vibration per ISO 10816-3. |
| Cooling Tower Fan (Vertical Gearbox) | Absolute velocity measurement on gearbox casing for early detection of bearing or gear wear. |
| Induction Motor (Vertical Mount) | Used on vertical motors driving pumps or compressors – monitors housing velocity. |
| Fan / Blower Bearing Housing (Vertical Axis) | Detects unbalance, misalignment, or looseness in industrial fans. |
| Small Steam Turbine (Bearing Pedestal) | Absolute casing vibration where proximity probes are not installed (low-speed or overhung turbines). |
| Hydro Turbine Guide Bearing | Vertical orientation matches typical hydro turbine bearing drain/guide configurations. |
| Reciprocating Compressor Frame | Measures frame vibration on vertical compressor cylinders (requires caution with high shock levels). |
| General Machinery Protection (Non-critical) | Lower cost alternative to proximity probes for less critical assets – direct replacement for older seismic pickups. |
Notes
9200-06-01-11-04 is a velocity transducer, not a proximity probe (eddy current). It measures absolute (case) vibration, not shaft relative vibration.
Vertical mounting (suffix 06) – the transducer is factory-optimized for vertical orientation. For horizontal mounting, use 9200-05-XX-XX-XX.
Passive device – no external power required. Output is AC voltage (millivolts) proportional to velocity. Most monitors (e.g., 3500/42 seismic input) provide the necessary high-impedance input.
Signal conditioning required – To interface with a PLC/DCS 4–20 mA analog input, a signal conditioner (e.g., Bently Nevada 1900/65A or standalone converter) is needed to convert AC velocity to 4–20 mA or filtered DC.
Not intrinsically safe – for hazardous area (Zone 1/Class I Div 1) installations, use a 9200 IS (intrinsically safe) version or install external IS barriers.
Cable length – 4.0 meters is integral to the transducer. For longer runs, order a transducer with a longer cable (e.g., suffix X2 for 5m, X3 for 7.5m, etc.) or use an external junction box.
Frequency range – 10 Hz to 2 kHz covers most machinery vibration, but not very low speeds (e.g., slow hydro turbines < 5 Hz). For very low speed, use accelerometer or proximity probe.
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