Overview
Moreover, this sensor forms a critical part of the 3300 XL transducer system, supporting reliable vibration and position monitoring.
It delivers consistent performance for turbomachinery protection, even under high temperatures, contamination, and mechanical stress.
Therefore, maintenance teams gain clearer machine condition insight and improved operational confidence.
Specification
| Category | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Product Series | 3300 XL |
| Model Number | 330780-91-05 |
| Product Type | Proximity Transducer / Proximitor Sensor |
| Measurement Principle | Eddy current, non-contact |
| Probe Size Compatibility | 11 mm proximity probes |
| Typical Measurement Range | Up to 4.0 mm (160 mils), system dependent |
| Usable Linear Range | Typically 2.0 mm (80 mils) |
| Scale Factor | Approximately 7.87 V/mm (200 mV/mil) |
| Output Signal Type | Voltage output proportional to target displacement |
| Output Polarity | Negative voltage with increasing target proximity |
| Output Impedance | Less than 1 ohm |
| Frequency Response | DC to 10 kHz (dependent on probe and cable length) |
| System Accuracy | ±1% of full-scale range |
| Resolution | Less than 0.01 mm |
| Power Supply Voltage | -24 VDC (supplied by monitoring system) |
| Power Consumption | Less than 10 mA |
| Warm-Up Time | Less than 1 minute |
| Temperature Drift | Less than ±0.15% per °C |
| Operating Temperature Range | -35°C to +85°C |
| Storage Temperature Range | -51°C to +105°C |
| Relative Humidity | Up to 95%, non-condensing |
| Shock Resistance | Designed for industrial mechanical shock environments |
| Vibration Resistance | Suitable for high-vibration rotating machinery |
| Environmental Protection | Resistant to oil mist, dust, and industrial contaminants |
| Mounting Method | DIN rail or panel mounting |
| Housing Material | Industrial-grade metal enclosure |
| Connector Type | Standard Bently Nevada transducer connector |
| Cable Compatibility | 3300 XL extension cables only |
| Compliance | Designed for use with Bently Nevada 3300 machinery protection systems |
| Typical Service Life | Long-term continuous operation in industrial environments |
FAQ
A1: It works with Bently Nevada 3300 XL 11 mm proximity probes, extension cables, and 3300 monitoring racks.
Q2: Why choose an 11 mm Proximitor Sensor instead of an 8 mm version?
A2: The 11 mm sensor supports larger shafts, thicker casings, and wider measurement ranges.
Q3: Can this sensor operate in high-temperature industrial environments?
A3: Yes, it operates reliably from -35°C to +85°C in demanding applications.
Q4: What measurements does this sensor support?
A4: It supports shaft vibration, axial position, thrust position, and rotor displacement monitoring.
Q5: Is factory calibration included?
A5: Yes, the sensor is factory calibrated to ensure accurate and repeatable output signals.
Q6: How does this sensor support predictive maintenance programs?
A6: It provides stable, high-resolution data that helps identify faults before failures occur.
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