1900/65A-01-01-00-00 monitoring module – produced by Bently Nevada, with accurate and guaranteed data! ​

The Bently Nevada 1900/65A-01-01-01-00-00 is a Proximitor® Seismic Transducer System engineered for robust machinery health monitoring in extreme industrial environments. As part of Emerson’s Bently Nevada 3300 XL series, this integrated solution combines a velocity sensor and proximity probe interface to simultaneously measure casing vibration and shaft position. The 1900/65A system features dual-channel processing with dynamic signal conditioning, delivering high-fidelity data for predictive maintenance of turbines, compressors, and other critical rotating assets. Its hardened 316 stainless steel housing (IP66/IP68 rated) withstands corrosive atmospheres, high humidity, and mechanical shock, while the -01-01-01-00-00 suffix specifies factory-configured parameters including 200 mV/mil sensitivity, -30°C to +100°C operational range, and ATEX/IECEx Zone 1 certification.

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Description

The Bently Nevada 1900/65A-01-01-01-00-00 is a Proximitor® Seismic Transducer System engineered for robust machinery health monitoring in extreme industrial environments. As part of Emerson’s Bently Nevada 3300 XL series, this integrated solution combines a velocity sensor and proximity probe interface to simultaneously measure casing vibration and shaft position. The 1900/65A system features dual-channel processing with dynamic signal conditioning, delivering high-fidelity data for predictive maintenance of turbines, compressors, and other critical rotating assets. Its hardened 316 stainless steel housing (IP66/IP68 rated) withstands corrosive atmospheres, high humidity, and mechanical shock, while the -01-01-01-00-00 suffix specifies factory-configured parameters including 200 mV/mil sensitivity, -30°C to +100°C operational range, and ATEX/IECEx Zone 1 certification.

Designed for reliability, the system integrates IEPE acceleration sensing and eddy-current proximity measurement in a single compact unit. Real-time signal validation detects sensor faults or cable degradation, reducing false alarms. Compatible with Bently Nevada 3500 series monitors and System 1® software, the 1900/65A-01-01-01-00-00 enables early detection of unbalance, misalignment, and bearing defects through synchronized vibration and position trending.

Bently Nevada 1900/65A-01-01-01-00-00

Technical Specifications

Parameter Name Parameter Value
Product Model Bently Nevada 1900/65A-01-01-01-00-00
Manufacturer Emerson (Bently Nevada)
Product Type Seismic Transducer System
Input Channels 2 (Velocity + Proximity)
Velocity Sensitivity 100 mV/in/s ±5%
Proximity Sensitivity 200 mV/mil (7.87 mV/µm)
Frequency Range Velocity: 4.5 Hz–1 kHz; Proximity: 0–10 kHz
Dynamic Range 120 dB (velocity), 80 dB (proximity)
Probe Compatibility 5 mm/8 mm (3300 XL series)
Power Supply 18–30 VDC loop-powered
Output Signals 4–20 mA (velocity), -1 to -20 VDC (proximity gap voltage)
Housing Material 316 Stainless Steel
Environmental Rating IP66/IP68
Operating Temperature -30°C to +100°C (-22°F to +212°F)
Hazardous Approvals ATEX/IECEx Zone 1, FM/CSA Cl. I Div. 2
Mounting 1/2″-13 UNF threaded base
Cable Termination Integral 10 m armored cable
Compliance API 670, ISO 10816

Main Features and Advantages

Dual-Parameter Monitoring: Simultaneously measures casing vibration (velocity) and shaft relative position (proximity) with phase coherence, enabling accurate diagnosis of rotor dynamics issues like oil whirl or rubs. Integrated sensor fault detection alerts to probe degradation or cable damage.

Extreme Environment Resilience: Hermetically sealed housing withstands 100 bar hydrostatic pressure and H₂S exposure. Armored cable resists crushing (1,500 N) and chemical corrosion. ATEX Zone 1 certification allows deployment in explosive gas atmospheres.

Plug-and-Play Integration: Factory-configured -01-01-01-00-00 parameters eliminate field calibration. Direct compatibility with 3300 XL proximity probes and Bently Nevada condition monitors reduces commissioning time. Modular design allows probe/cable replacement without recalibration.

Application Field

The 1900/65A-01-01-01-00-00 excels in high-risk sectors:

Oil & Gas: Monitors offshore gas compressor trains, detecting casing resonance and shaft displacement during surge events.

Power Generation: Safeguards steam turbine bearings and generator exciter ends in coal/nuclear plants.

Petrochemical: Surveils ethylene cracker turbocompressors for thrust bearing wear and rotor instability.

Marine: Protects propulsion engines on LNG carriers with DNV-GL certified vibration data.

Hydroelectric: Measures wicket gate actuator vibration and shaft runout in humid environments.

Bently Nevada 1900/65A-01-01-01-00-00

Related Products

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Bently Nevada 133819-02 Accelerometer: IEPE sensor for high-frequency impacts.

Bently Nevada 176449-01 Junction Box: Explosion-proof signal consolidation.

Bently Nevada 1900/50 Proximitor®: Standalone proximity system.

Bently Nevada System 1®: Analytics platform for machinery health.

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