The 3500/40M Proximitor Monitor from Bently Nevada provides four-channel monitoring for proximity transducers. It delivers precise vibration, position, and differential expansion measurements. This system supports programmable alarm functions for machinery protection and provides critical data to operations teams.
Key Functions
- Radial Vibration: Measures shaft vibrations in multiple modes.
- Thrust Position: Detects axial movement of rotating machinery.
- Differential Expansion: Monitors temperature-induced structural expansion.
- Eccentricity: Evaluates rotor alignment and imbalance.
- REBAM® (Rolling Element Bearing Analysis Monitor): Detects bearing defects and performance trends.
Channels can be configured in pairs to perform up to two functions simultaneously.
Inputs and Power
| Parameter | Specification |
|---|---|
| Supported Signals | 1–4 proximity transducer signals |
| Input Impedance | Standard I/O: 10 kΩ, TMR I/O: 50 kΩ |
| Power Consumption | 7 watts typical |
Sensitivity
| Measurement Type | Options |
|---|---|
| Radial Vibration, Thrust, Eccentricity | 3.94 mV/µm (100 mV/mil) or 7.87 mV/µm (200 mV/mil) |
| Differential Expansion | 0.394 mV/µm (10 mV/mil) or 0.787 mV/µm (20 mV/mil) |
| REBAM | 40 mV/µm (1000 mV/mil) or 80 mV/µm (2000 mV/mil) |
Outputs and Signal Conditioning
| Parameter | Specification |
|---|---|
| Front Panel LEDs | OK, TX/RX (communication), Bypass |
| Buffered Transducer Outputs | Coaxial connectors, short-circuit protected |
| Radial Vibration Frequency Response | Direct: 4 Hz–4000 Hz or 1 Hz–600 Hz (programmable), Gap: -3 dB at 0.09 Hz |
| Accuracy | Direct/Gap: ±0.33% typical, ±1% maximum; 1X/2X: ±0.33% typical, ±1% maximum |
Alarm and Static Values
- Programmable Alert and Danger levels per measurement.
- Monitored parameters: Radial Vibration (Direct, Gap, 1X, 2X), Thrust Position, Differential Expansion, REBAM (Spike, Element, Rotor).
Environmental Specifications
| Parameter | Specification |
|---|---|
| Operating Temperature | -30°C to +65°C (Internal/External Termination I/O) 0°C to +65°C (Internal Barrier I/O) |
| Storage Temperature | -40°C to +85°C |
| Humidity | 95%, non-condensing |
Physical Specifications
| Module | Dimensions (H × W × D) | Weight |
|---|---|---|
| Monitor Module | 241.3 × 24.4 × 241.8 mm (9.50 × 0.96 × 9.52 in) | 0.91 kg (2.0 lb) |
| I/O Module Non-barrier | 241.3 × 24.4 × 91.1 mm (9.50 × 0.96 × 3.90 in) | – |
| I/O Module Barrier | 241.3 × 24.4 × 163.1 mm (9.50 × 0.96 × 6.42 in) | – |
Ordering Information
| Part | Description |
|---|---|
| 176449-01 | 3500/40M Proximitor Monitor |
| 125680-01 | Proximitor I/O Module with Internal Terminations |
Details
| Weight | 0.91 kg |
|---|---|
| Dimensions | 241.3 × 24.4 × 241.8 mm |
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