Excellent PLC
Product Overview
The Bently Nevada 3500/40 Proximitor Monitor is a four-channel module designed to accept input from proximity transducers, process vibration and position measurements, and compare them with user-defined alarm limits. It is widely used for machinery protection and condition monitoring in critical industrial applications.
Technical Specifications
| Parameter | Value |
|---|---|
| Channels | 4 |
| Input Signal | 1–4 proximity transducer inputs |
| Power Consumption | 7.7 W (typical) |
| Sensitivity | Radial Vibration/Thrust/Eccentricity: 3.94 or 7.87 mV/µm; Differential Expansion: 0.394 or 0.787 mV/µm; REBAM: 40 or 80 mV/µm |
| Frequency Response | User-programmable, depends on function |
| Output Impedance | 550 Ω |
| Transducer Power Supply | –24 VDC |
| Alarm Setpoints | 0–100% full scale |
| Operating Temperature | –30°C to +65°C (depending on I/O type) |
| Storage Temperature | –40°C to +85°C |
| Humidity | 95% non-condensing |
| Dimensions (H×W×D) | 241.3 × 24.4 × 241.8 mm |
| Weight | 0.91 kg |
Applications
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Continuous monitoring of radial vibration, thrust position, eccentricity, differential expansion, and REBAM signals
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Protection of rotating machinery in power generation, oil and gas, petrochemical, and marine industries
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Real-time condition data for operations and maintenance teams
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Compliance with API and industrial safety requirements
Advantages
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Multi-function four-channel capability with flexible configuration
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High accuracy measurement with programmable filtering
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Integrated alarms for machinery protection
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Rugged design for harsh industrial environments
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Wide range of hazardous area approvals (ATEX, IECEx, CSA, cNRTLus)
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Compatible with Bently Nevada 3500 Series rack systems
FAQ
Q1: What type of sensors can the 3500/40 accept?
A1: It accepts proximity transducer inputs from 1 to 4 channels.
Q2: Can the monitor measure multiple parameters at once?
A2: Yes, channels can be configured in pairs to measure up to two different parameters simultaneously.
Q3: What is the purpose of REBAM functionality?
A3: REBAM detects rolling element bearing faults through high-frequency vibration analysis.
Q4: How are alarm setpoints configured?
A4: Alarm limits are set using the 3500 Rack Configuration Software.
Q5: Does it support hazardous area installation?
A5: Yes, with appropriate I/O module options it is certified for ATEX, IECEx, CSA, and cNRTLus.
Q6: What is the role of the front panel LEDs?
A6: LEDs indicate OK status, communication activity, and bypass mode.
Q7: Can it be used in marine applications?
A7: Yes, it meets ABS and DNV GL maritime standards.
Q8: What is the typical operating temperature range?
A8: –30°C to +65°C (varies with I/O module type).
Q9: How accurate is the vibration measurement?
A9: Typically ±0.33% of full scale, ±1% maximum.
Q10: Is it compatible with older 3500 Series racks?
A10: Yes, provided firmware and software meet the minimum required versions.
Related Models (Same Series)
| Model | Function | Channels | Dimensions (mm) | Weight |
|---|---|---|---|---|
| 3500/40M-01-00 | Proximitor Monitor | 4 | 241.3×24.4×241.8 | 0.91 kg |
| 3500/40M-02-00 | Proximitor Monitor with External Termination | 4 | 241.3×24.4×241.8 | 0.91 kg |
| 3500/42M-01-00 | Proximitor/Seismic Monitor | 4 | 241.3×24.4×241.8 | 0.91 kg |
| 3500/42M-04-00 | Proximitor/Seismic Monitor with Barriers | 4 | 241.3×24.4×241.8 | 0.91 kg |
| 3500/44M | Aeroderivative GT Vibration Monitor | 4 | 241.3×24.4×241.8 | 0.91 kg |
| 3500/45 | Position Monitor | 4 | 241.3×24.4×241.8 | 0.91 kg |
Popular Models (Same Brand)
| Model | Function | Channels | Dimensions (mm) | Weight |
|---|---|---|---|---|
| 3500/22M | Transient Data Interface | — | 241.3×24.4×241.8 | 0.91 kg |
| 3500/25 | Keyphasor Module | 2 | 241.3×24.4×241.8 | 0.91 kg |
| 3500/32M | Relay Module | — | 241.3×24.4×241.8 | 0.91 kg |
| 3500/60 | Temperature Monitor | 4 | 241.3×24.4×241.8 | 0.91 kg |
| 3500/61 | Temperature Monitor with TC Inputs | 4 | 241.3×24.4×241.8 | 0.91 kg |
| 3500/65 | Velocity Monitor | 4 | 241.3×24.4×241.8 | 0.91 kg |
