Bently Nevada 350042-09-00 – 3500/42 Proximitor/Seismic Monitor for Critical Machinery Protection

The Bently Nevada 350042-09-00 corresponds to the 3500/42 Proximitor/Seismic Monitor, a 4‑channel module used inside the 3500 rack to acquire, condition, and alarm on proximity probe and seismic (accelerometer/velomitor) signals. From my experience, this is the go-to card when you need reliable radial vibration, thrust position, or casing vibration measurements on compressors, steam turbines, gas turbines, or large motors. It plugs into the 3500 backplane, pairs with a matching I/O module, and integrates seamlessly with your rack’s communications and relay logic.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: typically 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express: FedEx, UPS, DHL

Key Features

• 4-channel vibration/position monitoring: Handles proximitor and seismic inputs for flexible machine coverage on a single module.
• Real-time protection logic: Alert/Danger alarm processing in the rack for fast trips and annunciation when limits are exceeded.
• Buffered transducer outputs: Convenient buffered signal access at the I/O for portable analyzers and diagnostics without disturbing the process.
• Sensor compatibility you expect: Typically works with 3300 XL proximity probes, 330400/330425 accelerometers, and 330500 velomitors, among others.
• Full 3500 rack integration: Uses the backplane for power and communications; data access via the 3500/22M System Communications Module (Ethernet) in most cases.
• Flexible measurements: Commonly configured for radial vibration, axial position, shaft position, and casing vibration—adapts to many machine trains.

Technical Specifications

Application Fields

You’ll typically find the 3500/42 on high-value rotating assets where early detection of vibration issues prevents costly downtime:

• Oil & Gas: compressors, gas turbines, pumps on critical process lines
• Power Generation: steam turbines, generator trains, boiler feed pumps
• Chemical & Petrochemical: process compressors, extruders, agitators
• Metals, Mining & Cement: large fans, mills, gearboxes, and crushers
• Pulp & Paper and Water: vacuum pumps, blowers, and high-speed motors

“We replaced a mixed set of legacy monitors with 3500/42 cards and immediately got cleaner data trends. Our analysts like the buffered outputs for quick checks during outages.” — Maintenance Supervisor, power plant (field feedback)

Advantages & Value

• Reliability: Mature 3500 platform with proven uptime in harsh environments.
• Compatibility: Works with widely used Bently Nevada sensors, simplifying spares and calibration.
• Lifecycle efficiency: Common hardware across the rack reduces training and maintenance complexity.
• Data accessibility: Use the rack’s 3500/22M for historian/SCADA connectivity and buffered outputs for diagnostics.
• Procurement confidence: Traceable sourcing and a 365‑day warranty keep risk low from a buyer’s standpoint.

Installation & Maintenance

• Cabinet & mounting: Install in a standard 3500 rack within a 19‑inch cabinet; allow front and rear clearance for module and I/O access.
• Wiring practice: Use shielded, properly grounded transducer cables; keep separation from high‑voltage conductors to minimize noise.
• Ventilation: Maintain cabinet airflow; the 3500 system typically operates best between 0 and 65°C with low humidity.
• Safety: De‑energize the rack before inserting/removing modules; observe ESD precautions; verify hazardous area approvals for the site.
• Routine tasks: Periodically verify alarm setpoints, review channel configuration, clean terminal areas, and perform sensor checks. Firmware/config updates are usually performed via the 3500 configuration software through the 3500/22M.

Quality & Certifications

• CE compliant
• UL/cUL for industrial control equipment
• RoHS compliant
• Manufactured under ISO 9001 quality systems
• Standard manufacturer warranty support; our supply warranty is 365 days

Common Supporting Components (for a complete solution)

• 3500/22M System Communications Module (Ethernet data access)
• 3500 Power Supply and 3500/05 System Rack (mounting and backplane power)
• Compatible transducers: 3300 XL proximity probes, 330400/330425 accelerometers, 330500 Velomitor velocity sensors
• Relay modules in the rack for trip/annunciation as required by the protection philosophy