Bently Nevada 330105-05-30-05-02-00 Reverse Mounting Probe

This reverse mounting probe measures shaft vibration in confined turbine and compressor areas. It fits into locations where standard probes cannot install due to space constraints. Engineers select this sensor for retrofitting and upgrade projects with limited access. Its unique design allows installation from the reverse side of the housing wall.

Electrical Performance and Output Characteristics

The Bently Nevada 330105-05-30-05-02-00 delivers a sensitivity of 7.87 mV/µm across its linear range. Its nominal gap voltage stabilizes at -9.0 Vdc under standard operating conditions. The probe supports a frequency response from DC to 10 kHz. This wide bandwidth captures both slow shaft drift and rapid vibration events. Additionally, the built-in EMI shielding minimizes interference from adjacent variable-frequency drives.

Mechanical Design and Reverse-Mount Configuration

The reverse mounting design enables installation through the back of bearing housings. Its total length reaches 80.0 mm, accommodating thicker housing walls. The tip diameter measures 8.2 mm, matching standard 3300 XL probe specifications. This model includes a 5.0-meter extension cable with a sealed connector. The housing thread uses 3/8-24 UNF-2A for secure mounting. Furthermore, the single internal coil generates a stable electromagnetic field for consistent readings.

Key Technical Specifications

The table below summarizes the critical parameters for the Bently Nevada 330105-05-30-05-02-00.

Parameter	Specification
Model Number	330105-05-30-05-02-00
Manufacturer	Bently Nevada
Product Category	Reverse Mounting Probe
Housing Thread	3/8-24 UNF-2A
Total Length	80.0 mm
Tip Diameter	8.2 mm
Linear Range	0.25 mm to 2.03 mm
Sensitivity	7.87 mV/µm
Temperature Range	-35°C to +120°C
Extension Cable	5.0 m with sealed connector
Ingress Protection	IP67 rated
Weight	Approx. 280 grams
Tip Material	Polyphenylene Sulfide (PPS)
Compatible System	3300 XL 8 mm Monitoring System
Output Type	Negative DC voltage signal
Coil Configuration	Single internal coil assembly
EMI Protection	Integrated shielding layer
Mounting Style	Reverse mount (backside installation)
Industry Standard	API 670 compliant
Target Compatibility	Ferrous and non-ferrous metals

Environmental Resistance and Service Life

The Bently Nevada 330105-05-30-05-02-00 resists oil, steam, and mild corrosive agents effectively. The PPS tip maintains structural integrity under repeated thermal cycling. All sealing components meet IP67 standards for dust and water immersion. Consequently, this probe delivers a service life exceeding 50,000 hours in harsh environments. The robust construction reduces replacement frequency and lowers lifecycle maintenance costs.

Installation Advantages and System Compatibility

This reverse-mount probe simplifies installation where front access proves impossible. Its longer body length accommodates thicker housing walls in steam turbines. The output connects directly to 3300 XL rack-mounted monitors without adapters. Therefore, maintenance teams gain reliable vibration data from previously inaccessible locations. The combination of reverse mounting and precision supports comprehensive machine protection strategies.