Product Introduction
The Bently Nevada 330102-00-50-10-02-05 is a 3300 XL 8 mm Proximity Probe with an integral cable. It is a non‑contact eddy‑current probe designed for precision measurement of shaft relative vibration, axial (thrust) position, eccentricity, and speed (Keyphasor) on rotating machinery. This model features a standard 8 mm probe tip, a 50 mm overall case length, a 1.0 meter integral cable, a Mini‑type coaxial male connector, and hazardous area approvals (‑05). The 330102 series typically denotes a specific probe body configuration compatible with standard 3300 XL mounts. The probe is fully compatible with 3300 XL Proximitors (e.g., 330180 series) and extension cables.
The part number breaks down as:
330102 – 3300 XL 8 mm probe (specific case/thread configuration)
00 – Unthreaded length: 0 mm
50 – Overall case length: 50 mm (5.0 cm / 1.97 in)
10 – Total cable length (probe + integral): 1.0 m (39.4 in)
02 – Connector type: Miniature coaxial male (Mini‑Type)
05 – Approval code: Hazardous area (ATEX, CSA, IECEx Zone 0/1/2, gas and dust)
The probe body is constructed from PPS (Polyphenylene Sulfide) and 300 series stainless steel, offering excellent chemical and abrasion resistance. The integral cable features a fluoropolymer jacket for durability in harsh industrial environments.
Parameters
| Parameter | Specification |
|---|---|
| Model / Part Number | 330102-00-50-10-02-05 |
| Product Type | 3300 XL 8 mm Proximity Probe (integral cable) |
| Probe Tip Diameter | 8 mm (0.315 in) |
| Unthreaded Length | 0 mm |
| Overall Case Length | 50 mm (1.97 in) |
| Total Cable Length (probe + integral) | 1.0 m (39.4 in) |
| Connector Type | Miniature coaxial male (Mini‑Type) |
| Approval Code | -05 (ATEX, CSA, IECEx Zone 0, 1, 2; gas and dust) |
| Dimensions (probe head only) | Diameter: 8 mm (0.315 in); Length: 50 mm (1.97 in) |
| Cable Outer Diameter | 3.5 mm (0.14 in) |
| Total Weight (probe + 1.0 m cable) | Approx. 0.11 kg (0.24 lb) |
| Linear Range | 2.0 mm (80 mils) |
| Operating Temperature (probe tip) | –35 °C to +120 °C (–31 °F to +248 °F) |
| Operating Temperature (cable) | –51 °C to +177 °C (–60 °F to +351 °F) |
| Storage Temperature | –51 °C to +177 °C (–60 °F to +351 °F) |
| Material (tip & housing) | Polyphenylene Sulfide (PPS) / 300 series stainless steel |
| Thread Size | 3/8‑24 UNF |
| Output scaling (with 3300 XL Proximitor) | 7.87 V/mm (200 mV/mil) |
| Frequency response (system) | DC to 10 kHz |
Application Scenarios
Radial Vibration Monitoring in Hazardous Areas – Installed on steam turbines, gas turbines, centrifugal compressors, and large pumps in refineries, chemical plants, and offshore platforms (ATEX Zone 0/1/2). The -05 approval ensures compliance with explosion protection regulations.
Axial (Thrust) Position Measurement – Monitors rotor displacement on compressors and turbines to prevent thrust bearing overload and rotor‑stator rub, especially in petrochemical environments.
Shaft Eccentricity and Runout – Used during startup and coast‑down of large generators and turbines to detect shaft bow, enabling safe passage through critical speeds.
Keyphasor / Speed Reference – Provides a once‑per‑revolution timing pulse for phase measurement, essential for Bode plots, orbit analysis, and overspeed protection systems.
Machinery with Moderate Cable Length Requirements – The 1.0 meter integral cable is ideal when the proximitor can be mounted relatively close to the probe (e.g., in a small junction box adjacent to the machine), reducing cable clutter and cost while maintaining signal integrity.
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