Bently 330101-00-12-10-02-00 3300 XL 8mm series proximity sensor
The Bently Nevada 3300 XL 8 mm Proximity Transducer System is a key device for monitoring the condition of rotating machinery. It is especially suitable for vibration, position measurement, key phase (or) reference and rotational speed measurement of hydrodynamic bearing machinery
Bently 330101-00-12-10-02-00 3300 XL 8mm series proximity sensor
I. System Composition and Basic Principles
1：Core component
- 8mm Probe (Probe) : It directly senses the distance change of the conductive surface to be measured and is usually installed on the bearing box or housing to align with the shaft surface.
- Extension Cable : connects the probe to the preamplifier. The standard length is 5 meters, meeting the API 670 standard requirements
- Proximitor Sensor : converts the electrical signal sensed by the probe into a standard voltage output linearly proportional to the distance, and can simultaneously analyze static position and dynamic vibration signals
2：Working principle
Based on the eddy current effect: The probe coil generates a high-frequency electromagnetic field, which induces eddy currents when acting on the surface of the conductive shaft. The intensity of these eddy currents is directly proportional to the gap between the probe and the shaft surface. The preamplifier converts this gap variation into a DC voltage (static position) and an AC voltage (dynamic vibration) output .
️ II. Core Functions and application scenarios
1：Monitoring parameters
- Shaft Vibration : Real-time capture of radial vibration amplitude of the shaft, range ±2mm, resolution 0.001mm
- Axial displacement () : Monitor the wear of thrust bearings or rotor movement (if using an 11mm probe)
- Key phase signal (Keyphasor) : provides the speed reference phase, used for vibration phase analysis and start-stop process monitoring
2: Typical application equipment
- High-speed rotating machinery such as steam turbines, centrifugal compressors, and gas turbines.
- Key equipment such as generators, water pumps, and fans that require preventive maintenance
Iii. Performance and Technical Advantages
1: High precision and reliability
- The output voltage strictly linearly corresponds to the gap variation, with an error of ≤±0.5% (full scale) .
- The improved circuit design reduces temperature drift and electromagnetic interference, adapting to the complex environment of industrial sites
2: Compatibility and Standardization
- Fully compliant with API 670 (4th edition) specification for mechanical protection systems .
- The output signal of the preamplifier can be directly connected to the Bently 3500 series monitoring system to achieve multi-parameter integrated analysis .
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The Bently3500 frame instrument system mainly includes:
3500/05-01-02-00-00-01 framework
Bently 3500/15 power module
bently3500/22M frame interface module with TDI
bently 3500/25 key phaser module
bently 3500/32 4-channel relay module
bently 3500/33 16-channel relay module
bently 3500/34 TMR relay module
bently 3500/40M Proximitor displacement monitor
bently 3500/42M displacement/speed acceleration monitoring
bently 3500/44M aerodynamic monitor
bently 3500/45 differential expansion/axial position monitor
bently 3500/46M water and electricity monitor
bently 3500/50 speed module
bently 3500/53 overspeed detection module
bently 3500/60 and 3500/61 temperature monitors
bently 3500/62 process variable monitor
bently 3500/64M dynamic pressure monitor
bently 3500/72M piston rod position monitor
bently 3500/77M cylinder pressure monitor
bently 3500/90 communication gateway
bently 3500/92 communication gateway
bently 3500/06 protective case
bently 3500/08 Fault Diagnosis connection panel
The interior grille of bently 3500
bently 3500/93 independent display instrument
bently 3500/93 LCD display device
bently 3500/94 VGA
bently 3500/95 user interface workstation
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