Product Name: Proximitor Sensor
Brand Name: Bently Nevada
Model Number: 330900-50-00
Place of Origin: United States
Warranty: 12 Months
Whatsapp：+86 18020776782
Email：[email protected]
Alternative Names
3300 Series Proximitor Sensor
330900 Proximity Switch
Bently Nevada 3300 Proximity Transducer
3300 Proximitor module used with RAM probe systems
The Bently Nevada 330900-50-00 Proximitor Sensor is designed for non-contact measurement of shaft vibration, position, and speed-related signals in rotating machinery. It converts the probe signal into a proportional electrical output, enabling monitoring of radial vibration, axial displacement, tachometer signals, and phase reference (Keyphasor) inputs for machinery protection and condition monitoring systems.
This 330900-50-00 Proximitor Sensor belongs to the 3300 series and is manufactured by Bently Nevada in the United States. It operates with an input voltage of approximately -24 VDC and uses a 5-meter cable system. The sensor provides a scale factor of 200 mV/mil (7.87 mV/µm) and is designed to work with RAM probes. It is suitable for applications involving small target sizes, including shafts under 51 mm in diameter and flat targets under 15 mm.
The Bently Nevada 330900-50-00 Proximitor Sensor is engineered for applications where conventional proximity transducer systems cannot be installed due to space or geometric constraints such as limited side view or counter bore restrictions. It is particularly effective in fluid-film bearing machinery and compact rotating equipment, where precise measurement of vibration and position is required. Its ability to handle multiple functions—including vibration monitoring, axial position detection, speed sensing, and phase reference generation—makes it a versatile solution for industrial machinery diagnostics and protection.
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| Product Name | Bently Nevada 330900-50-00 Proximitor Sensor |
| Manufacturer | Bently Nevada |
| Product Type | Proximitor Sensor |
| Part Number | 330900-50-00 |
| Dimensions | 7.8x6x4.8cm |
| Weight | 0.28kg |
| Place of shipment | Xiamen, China |
| Country of origin | USA |
| Input Voltage (Vt) | -24 VDC |
| Cable Length | 5 meters |
| Scale Factor | 200 mV/mil (7.87 mV/µm) |
| Probe Type | RAM Probe |
| Operating Temperature | Typically up to -40 °C to +85 °C (industrial range) |
| Frequency Response | Up to ~50 kHz (for proximity detection applications) |
| Mounting Type | Panel mount / system integration dependent |
| Output Type | Analog voltage output proportional to displacement |
Monitoring radial vibration in small-diameter shafts (under 51 mm / 2 in)
Measuring axial (thrust) position on small or flat targets (under 15 mm / 0.6 in)
Applications with installation constraints such as counter bore, side view, or rear view limitations
Fluid-film bearing machinery with narrow shafts or restricted access
Tachometer and zero-speed measurement systems
Phase reference (Keyphasor) signal generation for rotating machinery
Compact or specialized rotating equipment where standard transducer systems cannot be used
Developed by Bently Nevada as part of the 3300 series
Non-contact proximity measurement for vibration, position, and speed signals
High sensitivity with a scale factor of 200 mV/mil (7.87 mV/µm)
Operates with -24 VDC input power
Equipped with a 5-meter cable system for flexible installation
Compatible with RAM probe systems
Suitable for small target and limited-space applications
Supports multiple functions including vibration monitoring, axial position measurement, tachometer, and phase reference signals
Reliable performance in fluid-film bearing and high-precision monitoring environments
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