Excellent PLC
Product Overview
The Bently Nevada 3500/42-01-01 is a high-precision proximity and seismic monitoring module designed for critical rotating machinery protection. It measures radial vibration, axial position, and seismic signals, ensuring early detection of mechanical faults. The module integrates seamlessly with the 3500 Series Machinery Protection System, offering reliable and continuous online monitoring in demanding industrial environments.
Product Specifications
| Parameter | Description |
|---|---|
| Module Type | Proximitor Seismic Monitor |
| Channel Quantity | 4 independent channels |
| Measurement Types | Radial vibration, axial position, velocity, acceleration |
| Input Types | Proximitor® sensors, seismic transducers |
| Frequency Response | 4 Hz to 60 kHz (dependent on transducer) |
| Dynamic Range | 92 dB minimum |
| Accuracy | ±0.25% of full-scale |
| Power Consumption | < 8 W |
| Outputs | 4–20 mA proportional output, relay contacts, buffered transducer signals |
| Dimensions | 241.3 × 24.4 × 241.8 mm |
| Weight | 0.91 kg |
| Mounting | 3500 rack-mounted |
| Operating Temperature | -30°C to +65°C |
Applications
-
Turbomachinery protection — gas turbines, steam turbines, compressors.
-
Seismic vibration monitoring — large motors, gearboxes, fans.
-
Shaft displacement measurement — axial and radial proximity.
-
Condition-based maintenance — trend analysis and predictive diagnostics.
-
Plant safety systems — integration with DCS and ESD systems.
Advantages
-
High Reliability — Proven in critical industrial applications with continuous uptime.
-
Versatility — Supports multiple transducer types for wide application coverage.
-
Precision Measurement — Exceptional accuracy for fault detection.
-
Modular Integration — Fits into standard 3500 rack with easy configuration.
-
Data Accessibility — Buffered outputs for advanced diagnostics.
-
Safety Compliance — Meets API 670 standards for machinery protection.
FAQ
-
What sensors are compatible with the 3500/42-01-01?
Proximitor® proximity probes and standard seismic transducers. -
Can it measure both vibration and position?
Yes, it supports radial vibration, axial position, and seismic measurements. -
Does it require a dedicated rack?
It is designed for installation in the Bently Nevada 3500 rack system. -
What is the minimum measurable frequency?
Approximately 4 Hz, depending on the transducer type. -
Is it API 670 compliant?
Yes, it meets API 670 standards for machinery protection systems. -
Can it output directly to a PLC or DCS?
Yes, via 4–20 mA outputs or relay contacts. -
What is the accuracy of the measurement?
±0.25% of full-scale. -
Does it have self-diagnostics?
Yes, the module includes continuous self-diagnostic functions. -
Is it suitable for hazardous areas?
With appropriate transducers and installation, it can be used in hazardous zones. -
What industries use this module most?
Oil & gas, power generation, petrochemical, pulp & paper, and heavy manufacturing.
Related Models – Same Series
| Model | Description | Channels | Input Type | Dimensions (mm) | Weight |
|---|---|---|---|---|---|
| 3500/40M | Proximitor Monitor | 4 | Proximity probes | 241.3×24.4×241.8 | 0.91 kg |
| 3500/44M | Aeroderivative Gas Turbine Monitor | 4 | Proximity & speed | 241.3×24.4×241.8 | 0.91 kg |
| 3500/46M | Hydro Monitor | 4 | Proximity & speed | 241.3×24.4×241.8 | 0.91 kg |
| 3500/45 | Position Monitor | 4 | Proximity probes | 241.3×24.4×241.8 | 0.91 kg |
| 3500/50 | Keyphasor Module | 2 | Keyphasor signals | 241.3×24.4×241.8 | 0.91 kg |
| 3500/92 | Communication Gateway | — | Rack data output | 241.3×24.4×241.8 | 0.91 kg |
Popular Models – Same Brand
| Model | Description | Channels | Input Type | Dimensions (mm) | Weight |
|---|---|---|---|---|---|
| 3500/22M | Transient Data Interface | — | System data | 241.3×24.4×241.8 | 0.91 kg |
| 3500/25 | Keyphasor Module | 2 | Keyphasor signals | 241.3×24.4×241.8 | 0.91 kg |
| 3500/32M | Relay Module | 4 relays | System alarms | 241.3×24.4×241.8 | 0.91 kg |
| 3500/33 | Relay Module | 4 relays | System alarms | 241.3×24.4×241.8 | 0.91 kg |
| 3500/53 | Overspeed Detection | 2 | Speed probes | 241.3×24.4×241.8 | 0.91 kg |
| 3500/72M | Temperature Monitor | 4 | RTDs/Thermocouples | 241.3×24.4×241.8 | 0.91 kg |
