Bently Nevada 22810-00-03-10-02 Eddy Current Proximity Probe Product Specification
22810-00-03-10-02 is factory pre-calibrated standard 8mm eddy current proximity probe belonging to Bently Nevada 3300XL transducer series, applied for non-contact online measurement of rotor radial vibration and short-range axial displacement on critical rotating machinery. When matched with original calibrated extension cable and corresponding designated proximitor preamplifier, this probe converts clearance fluctuation between probe tip and conductive metallic target into stable linear DC analog voltage signal, which is transmitted to 3300 or 3500 rack monitoring modules for real-time condition monitoring, pre-alarm configuration and safety trip interlock protection. Widely installed on steam turbines, gas turbines, centrifugal compressors, large generators and high-speed process pumps in power, petrochemical and metallurgical industries. Every finished probe passes linearity calibration, high-low temperature cycling aging test and sealed insulation inspection before factory delivery to keep stable measuring accuracy under harsh field environments with high ambient temperature, lubricant oil mist and complicated electromagnetic interference inside bearing housings.
Description
Bently Nevada 22810-00-03-10-02 Eddy Current Proximity Probe Product Specification
1. Product Overview
22810-00-03-10-02 is factory pre-calibrated standard 8mm eddy current proximity probe belonging to Bently Nevada 3300XL transducer series, applied for non-contact online measurement of rotor radial vibration and short-range axial displacement on critical rotating machinery. When matched with original calibrated extension cable and corresponding designated proximitor preamplifier, this probe converts clearance fluctuation between probe tip and conductive metallic target into stable linear DC analog voltage signal, which is transmitted to 3300 or 3500 rack monitoring modules for real-time condition monitoring, pre-alarm configuration and safety trip interlock protection. Widely installed on steam turbines, gas turbines, centrifugal compressors, large generators and high-speed process pumps in power, petrochemical and metallurgical industries. Every finished probe passes linearity calibration, high-low temperature cycling aging test and sealed insulation inspection before factory delivery to keep stable measuring accuracy under harsh field environments with high ambient temperature, lubricant oil mist and complicated electromagnetic interference inside bearing housings.
2. Part Number Definition Breakdown
Each dash-divided segment of 22810-00-03-10-02 represents fixed factory configuration parameters. Base code 22810 stands for standard 8mm diameter proximity probe base platform of 3300XL product line; segment 00 defines probe body thread specification and mounting mechanical dimension; segment 03 refers to internal coil layout and calibrated parameter setup for standard 8mm sensing head; segment 10 specifies factory pre-attached integral cable length of 10 meters; final segment 02 means FEP insulated non-armored 75-ohm coaxial cable with standard original coaxial connector at cable end. Any probe with inconsistent segment codes owns different mechanical dimension, cable length or calibration data and cannot be directly replaced on-site without full-loop recalibration, otherwise measurement drift and unexpected equipment protection malfunction will occur.
3. Core Functional Characteristics
The probe tip and threaded mounting body adopt integrated stainless steel forming, featuring excellent mechanical strength and resistance against lubricating oil erosion and weak corrosive vapor inside confined bearing chamber. Internal induction coil is fully fixed with high-temperature epoxy potting to eliminate inner air gap, effectively avoiding coil displacement or inter-turn short-circuit caused by long-term equipment vibration and ambient temperature variation. Equipped with standard 75-ohm high-temperature FEP insulated coaxial cable, the integral cable has outstanding anti-interference performance for long-distance field wiring. The whole transducer system maintains fixed factory calibration only when assembled with original matching extension cable and calibrated proximitor, supporting backend monitor cards to set over-limit alarm and shutdown thresholds for machinery protection. Built-in anti-loose thread structure prevents mounting looseness induced by continuous unit running vibration, and probe open/short circuit faults can be quickly judged via abnormal output voltage shift for easy field troubleshooting.
4. Electrical and Metrological Specifications
The matched proximitor provides regulated negative DC power from -17.5VDC to -26VDC, typical field working voltage is -24VDC. Factory fixed sensitivity is 7.87V/mm (200mV/mil) complying with standard 8mm 3300XL specification, full-range linearity tolerance is controlled within ±5% per API 670 standard. Valid linear measuring range covers 1.27mm ~ 9.27mm to satisfy conventional shaft radial vibration and small-stroke axial clearance measurement. Frequency response ranges DC to 10kHz, meeting acquisition requirement of low-frequency slow thermal drift and high-frequency dynamic vibration signals. Minimum effective target diameter is 15.2mm for standard carbon steel target material; recommended pre-installation gap is around 1.27mm to place operating point near linear mid-range.
5. Environmental Working Parameters
Continuous permissible operating temperature of probe sensing part ranges from -35°C to +120°C for installation near high-temperature bearing housings and turbine casings. Spare storage temperature is between -55°C and +85°C under dry non-condensing environment; applicable working relative humidity is 5%RH~100%, long-term liquid immersion is forbidden to protect internal insulation. The probe can withstand routine industrial vibration of 10Hz~2kHz generated by adjacent rotating equipment. Continuous exposure to heavy corrosive gas and persistent hot steam is prohibited to extend service life of coil and cable insulation. For installation above 1000 meters altitude, shorten periodic inspection cycle appropriately.
6. Installation and Routine Maintenance Guidance
Cut off the power of entire monitoring loop before installation, screw the probe into reserved threaded hole of bearing housing or custom mounting bracket, adjust pre-set clearance to design value and lock fastening nut against operational looseness. During field wiring construction, separate probe signal cables away from high-current AC power lines to reduce cross electromagnetic interference. In regular maintenance cycles, periodically check cable outer insulation integrity, mounting thread tightness and surrounding oil accumulation. Only spare probe with identical full part number 22810-00-03-10-02 is allowed for direct field replacement. All replacement probes complete full electrical testing and alternating temperature aging screening before delivery to ensure full interchangeability during equipment overhaul.
Get a Quote