High-Performance Signal Conditioner for the 3300 XL 8 mm Proximity Transducer System
The Bently Nevada 330180-X1-05 MOD 161255-02 3300 XL 8 mm Proximitor® Sensor is the signal conditioning component of the 3300 XL 8 mm Proximity Transducer System. It converts the eddy-current signal from a compatible 3300 XL 8 mm or 3300 5 mm proximity probe into a linear voltage output proportional to the distance between the probe tip and the conductive target, enabling precise measurement of shaft vibration, axial position, radial displacement, and Keyphasor® reference signals.
The MOD 161255-02 designation identifies a customer-specific factory engineering modification, while the X1 option is a non-standard configuration rather than a standard catalog code. Details of the modification are controlled by Bently Nevada engineering documentation and are not publicly defined.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Part Number | 330180-X1-05 MOD 161255-02 |
| Product Type | 3300 XL 8 mm Proximitor® Sensor |
| Series | 3300 XL 8 mm Proximity Transducer System |
| Function | Signal conditioner for eddy-current proximity system |
| Compatible Probes | 3300 XL 8 mm and 3300 5 mm Proximity Probes |
| System Configuration | Custom (X1 non-standard option) |
| Modification | MOD 161255-02 (factory engineering modification) |
| Agency Approval | 05 – CSA, ATEX, IECEx Multiple Approvals |
| Output Scale Factor | 200 mV/mil (7.87 V/mm) |
| Supply Voltage | -17.5 to -26 VDC (nominal -24 VDC) |
| Output Resistance | 50 Ω |
| Operating Temperature | -52°C to +100°C |
| Storage Temperature | -52°C to +105°C |
| Mounting | DIN rail or traditional panel mount |
| Housing Material | Aluminum housing with isolated mounting base |
| Approximate Weight | 0.20–0.25 kg |
Typical Applications
The 330180-X1-05 MOD 161255-02 is commonly installed on:
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Steam turbines
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Gas turbines
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Centrifugal compressors
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Pumps
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Electric motors
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Gearboxes
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Blowers
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Fans
Typical monitoring functions include:
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Shaft vibration monitoring
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Shaft radial displacement measurement
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Axial position monitoring
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Speed and Keyphasor® reference
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Machinery protection systems
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Predictive maintenance programs
Key Features
Factory-Modified Configuration
The MOD 161255-02 version is engineered for a specific customer application or calibration. Unlike standard catalog models, the modification details are proprietary and should be verified before replacement or interchange.
High-Accuracy Signal Conditioning
The Proximitor® Sensor converts probe signals into a highly linear voltage output suitable for machinery protection systems and vibration monitoring.
Excellent EMC Performance
The 3300 XL Proximitor® Sensor incorporates enhanced RFI/EMI immunity, allowing installation in demanding industrial environments without requiring special shielded enclosures.
Flexible Mounting
The sensor supports both:
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High-density DIN rail installation
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Traditional four-hole panel mounting
This simplifies upgrades from earlier Bently Nevada Proximitor® Sensors.
Hazardous Area Certifications
The 05 approval option includes CSA, ATEX, and IECEx certifications for use in approved hazardous locations.
Complete System Compatibility
The sensor is intended for operation with compatible:
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3300 XL 8 mm Proximity Probe
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3300 XL Extension Cable
forming a complete calibrated transducer system.
Frequently Asked Questions
1. What is the function of the 330180-X1-05 MOD 161255-02?
It conditions the signal from a proximity probe and provides a linear voltage output proportional to shaft displacement for machinery monitoring.
2. What does "X1" mean?
X1 is not a standard catalog option. It indicates a non-standard configuration associated with a factory modification.
3. What is MOD 161255-02?
It is a customer-specific engineering modification. Public documentation does not disclose the exact changes, so replacement should match the original modified part number.
4. Which probes are compatible?
The sensor is compatible with 3300 XL 8 mm and 3300 5 mm proximity probes when configured as a complete system.
5. What certifications are included?
Option 05 includes CSA, ATEX, and IECEx hazardous-area approvals.
6. What supply voltage is required?
The sensor operates from -17.5 VDC to -26 VDC, with -24 VDC nominal.
7. What is the operating temperature?
The operating temperature range is -52°C to +100°C.
8. Can it replace a standard 330180 sensor?
Only if the application permits. Because MOD 161255-02 is a factory-modified configuration, interchangeability should be verified before replacement.
9. What mounting options are available?
The sensor supports both DIN rail and panel mounting.
10. Where is this sensor commonly used?
It is widely used in oil & gas, petrochemical, power generation, mining, marine, and other industries requiring continuous monitoring of critical rotating machinery.
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