Description
- Product Model: 330101‑00‑77‑15‑02‑CN
- Brand: Bently Nevada
- Warranty: One Year
- Input Voltage: Powered by matching 330180‑series proximitor (-24 VDC loop supply)
- Operating Temperature: ‑35 °C to +260 °C (probe and integral cable assembly)
- Storage Temperature: ‑55 °C to +280 °C
- Response Time: DC‑10 kHz bandwidth, <12 μs transient response
- Protection Class: IP67 probe sensing head under installed conditions
- Accuracy Class: ±0.5% full‑scale linearity
- Output Frequency: 0‑10 kHz dynamic vibration signal output
- Rated Current Range: Passive eddy‑current sensing element, no self‑current consumption
- Communication Interface: ClickLoc miniature coaxial connector
- Supported Protocols: Analog eddy‑current signal for 3300 / 3500 machinery monitoring racks
- Overload Capacity: 330 N mechanical cable pull‑resistance
- Dimensions: 7.7‑inch probe body length, 15‑meter FEP‑jacketed integral cable
Product Overview
The Bently Nevada 330101‑00‑77‑15‑02‑CN is a 3300 XL 8 mm standard‑mount eddy‑current proximity probe assembly for non‑contact rotating‑machinery condition and protection monitoring. This complete unit includes stainless‑steel probe body, high‑temperature FEP‑sheathed integral cable, and factory‑terminated ClickLoc coaxial connector, intended to pair with compatible 330180‑XX proximitor sensor. It captures tiny clearance changes between probe tip and rotating metallic target and delivers proportional analog signals to monitoring hardware for radial shaft vibration, thrust position and Keyphasor speed reference measurement. It addresses typical field‑site pain points such as signal noise and drift caused by field‑performed splices, cable mechanical fatigue, and measurement degradation within high‑temperature machinery casing environments. Rotating‑machinery reliability engineers, vibration analysts and plant maintenance technicians benefit from this hardware; factory one‑piece integrated cable eliminates field‑splicing errors, moderate‑length 15‑meter cable balances routing flexibility and signal stability, and consistent scale factor delivers repeatable measurement data for early identification of bearing wear, rotor misalignment and shaft instability to reduce unplanned rotating‑equipment downtime.
Application Scenarios
- Steam Turbine Thrust and Radial Vibration Monitoring: Mounted on turbine bearing housings and interfaced to 3500 monitor racks. The 7.7‑inch probe body fits medium‑depth mounting bores on turbo‑generator casings, providing continuous thrust‑position and vibration inputs for machinery alarm and automatic trip protection logic.
- Petrochemical Centrifugal Compressor Condition Surveillance: Deployed for multi‑stage process compressors in refineries. High‑temperature rated cable withstands hot ambient casing conditions, and the 15‑meter cable length supports routing from compressor skid to control cabinet without intermediate splices to preserve signal integrity.
- Power Plant Critical Auxiliary Rotating Equipment Protection: Used for large boiler feed‑water pumps and critical blowers. Non‑contact eddy‑current measurement tracks rotor dynamic behaviour continuously, generating early warnings for bearing degradation and rotor imbalance before severe mechanical failure develops.
Key Installation Notes
- Adjust probe‑to‑target working gap according to official transducer‑system calibration documentation and securely lock mounting threads; improper gap will shrink valid linear measurement range.
- Observe minimum cable bend radius during installation; sharp bends may damage internal conductors and cause signal noise or measurement drift.
- Must pair with corresponding 3300 XL‑series proximitor sensor; cross‑series mismatches will degrade scale‑factor accuracy and measurement reliability.
- Fully engage and lock ClickLoc coaxial connector; loose connections produce intermittent noisy readings and trigger false machinery‑protection alarms.







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