Excellent PLC
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Description
The Bently Nevada 330850-90-05 is part of the 3300 XL 25 mm Proximitor Sensor System. It is designed for accurate non-contact measurement of differential expansion in mid-size to large steam turbine generators. With a linear range of 12.7 mm and output of 0.787 V/mm, it delivers precise monitoring of rotor-stator expansion during thermal cycles.
Technical Specifications
| Parameter | Specification |
|---|---|
| Linear Range | 12.7 mm (500 mils) |
| Scale Factor | 0.787 V/mm (20 mV/mil) |
| Power Supply | –17.5 VDC to –26 VDC |
| Temperature (Probe) | –35 °C to +200 °C (Short-term +250 °C) |
| Temperature (Sensor) | –51 °C to +100 °C |
| Frequency Response | 0 to 2.7 kHz, +0, –3 dB |
| Recommended Target Size | ≥ 61 mm diameter |
| Total Length | 9.0 meters |
| Weight | 0.255 kg (255 g) |
| Probe Tip Material | PEEK |
| Probe Case Material | AISI 304 stainless steel |
| Sensor Material | A380 aluminum |
| Cable Type | 75 Ω PFA-insulated FluidLoc cable |
| Output Resistance | 50 Ω |
| Environmental Compliance | CE, RoHS, CSA, ATEX/IECEx |
Applications
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Steam turbine differential expansion (DE) monitoring
-
Shaft displacement and thermal growth measurement
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Power generation and utility equipment condition monitoring
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Large rotating machinery in oil & gas and petrochemical plants
Advantages
-
Wide linear range for accurate DE measurements
-
Durable construction withstands high temperatures and harsh environments
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Compatible with 7200 series for easy upgrades
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EMI/RFI immune for improved signal integrity
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Compact Proximitor Sensor with DIN/panel mount options
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Includes ClickLoc™ connectors for secure, tool-free installation
FAQ
Q1: What is the output signal of the 330850-90-05?
A1: It outputs 0.787 V/mm or 20 mV/mil.
Q2: What is the maximum linear range this sensor supports?
A2: 12.7 mm (500 mils).
Q3: Can the sensor operate in high-temperature environments?
A3: Yes, up to 200 °C continuously, and 250 °C intermittently for the probe.
Q4: Is this sensor compatible with older Bently Nevada systems?
A4: Yes, it is a direct replacement for the 7200 series with matching output characteristics.
Q5: What is the required power supply for this sensor?
A5: It operates on –17.5 VDC to –26 VDC.
Q6: Does this model support both DIN-rail and panel mounting?
A6: Yes, both options are available.
Q7: What is the probe’s cable insulation material?
A7: Perfluoroalkoxyethylene (PFA), known for high thermal and chemical resistance.
Q8: What material is the Proximitor sensor housing made of?
A8: A380-grade aluminum.
Q9: Is the sensor suitable for use in hazardous areas?
A9: Yes, it holds CSA, ATEX, and IECEx certifications.
Q10: What is the system’s weight with a 9.0 m total length?
A10: 0.255 kg (255 g) for the Proximitor Sensor alone.
Related Models (Same Series)
| Model Number | Description | Total Length | Weight |
|---|---|---|---|
| 330850-50-05 | 25 mm Proximitor Sensor (5m) Panel | 5.0 m | 0.255 kg |
| 330850-51-05 | 25 mm Proximitor Sensor (5m) DIN | 5.0 m | 0.255 kg |
| 330850-91-05 | 25 mm Proximitor Sensor (9m) DIN | 9.0 m | 0.255 kg |
| 330851-02-000-080-10-05 | 25 mm Probe M30x2 Thread, 80mm Length | 9.0 m | ~0.62 kg |
| 330854-080-24-05 | 25 mm Extension Cable, 8m, FluidLoc | 8.0 m | ~0.36 kg |
| 330853-01-01 | 25 mm Sliding Bracket (Short) | – | 0.58 kg |
Popular Bently Nevada Models
| Model Number | Description | Application | Weight |
|---|---|---|---|
| 3500/42M | Proximitor Seismic Monitor Module | Vibration Monitoring | 0.8 kg |
| 330104-00-10-10-02 | 8 mm Proximity Probe | Shaft Vibration Monitoring | 0.15 kg |
| 330130-040-00-00 | Extension Cable 4 m | Cable for 3300 Series Probes | 0.18 kg |
| 3500/22M | Transient Data Interface Module | Data Interface | 0.9 kg |
| 3500/15 | Power Supply Module | Power Supply | 0.7 kg |
| 330180-91-CN | 3300 XL 8 mm Proximitor Sensor | General Purpose Monitoring | 0.25 kg |
