Excellent PLC
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| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Overview
The Bently Nevada 330780-90-CN is part of the 3300 XL 11 mm Proximity Transducer System, specifically designed for measuring non-contact vibration and position in machinery using fluid film bearings. With a wider linear range compared to the 8 mm series, it is well-suited for thrust position, rod drop, and Keyphasor measurements.
Applications
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Axial (thrust) position monitoring on steam turbines
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Rod position or rod drop detection on reciprocating compressors
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Ramp differential expansion measurement
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Tachometer and phase reference (Keyphasor) signal acquisition
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High-accuracy vibration and displacement monitoring in harsh environments
Key Advantages
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Extended linear range of 4.0 mm
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High sensitivity: 3.94 V/mm (100 mV/mil)
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CE marked, strong RFI/EMI immunity
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Compact Proximitor Sensor with DIN or panel mount options
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Robust construction with stainless steel and PPS materials
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Suitable for SIL 2/3 functional safety applications
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Compatible with long cable runs up to 305 meters
Technical Specifications
| Parameter | Specification |
|---|---|
| System Type | 3300 XL 11 mm Proximitor Sensor |
| Output Scale | 3.94 V/mm (100 mV/mil) ±10% |
| Frequency Range | 0 – 8 kHz |
| Linear Range | 0.5 mm to 4.5 mm (20 to 180 mils) |
| Recommended Gap | 2.5 mm (100 mils) |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 304 Stainless Steel |
| Sensor Material | A380 Aluminum Alloy |
| Power Supply | -17.5 VDC to -26 VDC |
| Operating Temp (Probe) | -52°C to +177°C |
| Operating Temp (Sensor) | -52°C to +100°C |
| System Length | 9.0 meters |
| Total Weight | 0.255 kg |
| Environmental Protection | 100% humidity (non-submersible) |
| Hazardous Area Approvals | ATEX, IECEx, cNRTLus (Zone 0, Zone 2 capable) |
Frequently Asked Questions (FAQ)
Q1: What is the main function of the 330780-90-CN Proximitor Sensor?
A1: It measures shaft vibration and displacement in non-contact applications using eddy current technology.
Q2: What is the output signal of the sensor?
A2: It outputs 3.94 V/mm (100 mV/mil), suitable for integration with Bently Nevada monitoring systems.
Q3: Can the sensor be used in hazardous areas?
A3: Yes, it has approvals for use in hazardous zones including Zone 0 and Zone 2.
Q4: Is this sensor compatible with older 7200 series systems?
A4: No. When upgrading from 7200-series, all components and monitoring systems must be replaced.
Q5: What is the benefit of using an 11 mm probe over 8 mm?
A5: The 11 mm probe provides a longer linear range, making it ideal for thrust and rod drop measurements.
Q6: How long can the system wiring be?
A6: Up to 305 meters of field wiring is supported from the sensor to the monitoring system.
Q7: What type of cable does the system use?
A7: It uses a 75 Ω triaxial FEP-insulated cable, with options for armor and FluidLoc.
Q8: Can this sensor withstand high temperatures?
A8: Yes, the probe can handle up to +177°C, and the Proximitor Sensor can handle up to +100°C.
Q9: What is the mounting type of this model?
A9: The 330780-90-CN comes with a 9.0 m system length and panel mount hardware.
Q10: Does the sensor require recalibration for different materials?
A10: Yes, the sensor is factory calibrated to AISI 4140 steel but can be calibrated to other materials upon request.
Related or Compatible Models
| Model Number | Description | Length | Output |
|---|---|---|---|
| 330780-50-CN | Proximitor Sensor, 5.0 m, panel mount | 5.0 m | 3.94 V/mm |
| 330780-91-CN | Proximitor Sensor, 9.0 m, DIN mount | 9.0 m | 3.94 V/mm |
| 330701-00-10-10-02 | 11 mm Probe, 1/2-20 UNF, unarmored | 1.0 m | N/A |
| 330703-000-050-10 | 11 mm Probe, M14x1.5, unarmored | 5.0 m | N/A |
| 330730-080-00-00 | Extension Cable, 8.0 m, standard | 8.0 m | N/A |
| 330705-02-18-10 | Reverse Mount Probe, 3/8-24 UNF | 1.0 m | N/A |
Popular Models from Bently Nevada
| Model Number | Description | Application | Weight |
|---|---|---|---|
| 330104-00-05-10-02 | 3300 XL 8 mm Proximity Probe | General Vibration Monitoring | ~0.24 kg |
| 330130-045-00-05 | Extension Cable 5.0 m | Probe to Sensor Connection | ~0.25 kg |
| 3500/42M-01-00 | Proximitor Seismic Monitor | Vibration Signal Monitoring | ~0.60 kg |
| 3500/22M-01-01-00 | Transient Data Interface | Machinery Diagnostics | ~0.70 kg |
| 3500/33-01-00 | 3-Channel TMR Vibration Monitor | Redundant Safety Systems | ~0.85 kg |
| 330400-02-12-10-02 | Reverse Mount 5 mm Probe | Compact Measurement Points | ~0.20 kg |
