Brand: Bently Nevada

Bently Nevada 330105-02-12-10-02-05 3300 XL Probe

Name: Bently Nevada 330105-02-12-10-02-05 3300 XL Probe
Brand: Bently Nevada

Description

Overview

The Bently Nevada 330105 probe 330105-02-12-10-02-05 is the 3300 XL 8 mm eddy current sensing element of the 3300 XL proximity transducer system, used to measure shaft vibration and position without contact. It is a genuine Baker Hughes Bently Nevada part configured with a 3/8-24 UNF thread, a 0.2 in unthreaded length, a 1.2 in case length and a 1.0 m cable with miniature coaxial ClickLoc connector.

Eddy current probes are the standard solution for radial vibration, axial position and speed measurement on turbomachinery. The 3300 XL 8 mm probe delivers a linear measurement range of 2 mm (80 mils) and is approved for use in hazardous areas with CSA, ATEX and IECEx certification, as specified by the 05 agency option.

Engineering & Design

The 3300 XL 8 mm probe uses the eddy current principle: a high-frequency signal from the Proximitor sensor is conditioned by the probe tip, and the impedance change caused by the target surface distance is converted into a DC voltage proportional to gap. The probe body and cable use Bently Nevada patented TipLoc and CableLoc construction for a robust bond between tip, body and cable.

This Bently Nevada 330105 probe is the standard 1.0 m variant with 3/8-24 UNF thread, miniature coaxial ClickLoc connector with standard cable, and CSA/ATEX/IECEx approvals. Standard probes are rated to 177 °C (350 °F); hotter installations require the extended temperature reverse mount probe 330195, which is a separate part number.

Installation guidance from the official Bently Nevada data sheet covers the mounting torque, the target surface requirements for a clean ferromagnetic surface and the air gap setting at installation. The probe tip must face the shaft with the specified gap; an incorrect standoff is the most common cause of measurement error in eddy current systems. The miniature coaxial connector mates with the standard 3300 XL extension cable, and the patented TipLoc design holds the tip in place during installation.

Key Features

Bently Nevada 330105 probe – 3300 XL 8 mm eddy current, P/N 330105-02-12-10-02-05
Linear measurement range 2 mm (80 mils)
3/8-24 UNF thread; 0.2 in unthreaded; 1.2 in case length
1.0 m cable with miniature coaxial ClickLoc connector
CSA, ATEX and IECEx agency approvals (option 05)
Standard temperature rating 177 °C (350 °F)

Applications

Radial shaft vibration monitoring on pumps, compressors and turbines
Axial thrust position measurement
Shaft eccentricity and phase reference (Keyphasor) systems
Machine protection retrofits on 3300 XL based condition monitoring systems

Specifications

Manufacturer	Bently Nevada (Baker Hughes)
System	3300 XL 8 mm proximity transducer system
Part number	330105-02-12-10-02-05
Probe type	3300 XL 8 mm reverse mount probe, eddy current
Thread	3/8-24 UNF
Unthreaded / case length	0.2 in / 1.2 in
Total cable length	1.0 m (3.3 ft)
Connector	Miniature coaxial ClickLoc, standard cable
Linear range	2 mm (80 mils)
Approvals	CSA, ATEX, IECEx
Temperature rating	Standard to 177 °C (350 °F); ETR option available
Probe case torque (reverse mount)	7.5 N.m (66 in.lbf) recommended; 22.6 N.m (200 in.lbf) maximum
Hexagon	7/16 in
Total length tolerance (1.0 m)	+30%, -0%
Nominal probe DC resistance (1.0 m)	7.59 ± 0.50 Ω, center conductor to outer conductor
Incremental scale factor	7.87 V/mm (200 mV/mil) ±5%, 5 or 1 metre system, 0 to +45 °C
Frequency response	0 to 10 kHz, +0, -3 dB, with up to 305 m of field wiring
Probe tip / case material	Polyphenylene sulfide (PPS) tip; AISI 303 or 304 stainless steel case
Probe cable	75 Ω triaxial FEP, 3.68 mm (0.145 in) outside diameter; minimum bend radius 25.4 mm (1.0 in)
Maximum thread engagement	0.563 in for 3/8-24 thread

Compatibility

The Bently Nevada 330105 probe is part of the 3300 XL 8 mm transducer system and works with the matching 3300 XL extension cable and 3300 XL Proximitor sensor. Use the 5 m Proximitor variant with 5 m probes; the 1.0 m probe length variant mates with the corresponding system configuration.

Ordering Information

Order the Bently Nevada 330105 probe 330105-02-12-10-02-05 for a 3300 XL 8 mm system with 3/8-24 UNF thread and 1.0 m total length. For armored cable or FluidLoc options, refer to the Bently Nevada ordering guide.

The Bently Nevada 330105 probe is part of the 3300 XL 8 mm proximity transducer system.

330105-02-12-10-02-05 Reverse Mount Part Number Breakdown

Base number 330105 is the 3300 XL 8 mm reverse mount probe with 3/8-24 UNF threads; its metric counterpart is 330106 with M10 × 1 threads. Unlike the standard forward-mount 330101, the first two fields are not selectable: the reverse mount probe is published only as 330105-02-12-CC-DD-EE, giving a fixed unthreaded length of 0.2 in (5.0 mm) and a fixed case length of 1.2 in (30 mm). The body carries a 7/16 in hexagon. Reverse mount probes are not offered with armor or with factory-fitted connector protectors.

Field C is total length: 05, 10, 15, 20, 50 and 90 for 0.5, 1.0, 1.5, 2.0, 5.0 and 9.0 metres, so the 10 here means a 1.0 metre (3.3 ft) lead with +30%, -0% tolerance. Field D has only two values, 02 for the miniature ClickLoc coaxial connector and 12 for the same connector on FluidLoc cable; FluidLoc is rarely needed on these probes because the probe sleeve already contains the oil. Field E is 00 (not required) or 05 (CSA, ATEX, IECEx approvals).

Installation Torque and System Matching for Reverse Mount Probes

Reverse mount probes have lower torque limits than standard cases: 7.5 N.m (66 in.lbf) recommended and 22.6 N.m (200 in.lbf) maximum, against 11.2 and 33.9 N.m for forward-mount probes. Thread engagement should stay within 0.563 in. Keep cable bends at or above 25.4 mm radius and join ClickLoc connectors finger tight, never beyond 0.565 N.m. Provide a flat target of at least 15.2 mm diameter.

With a 1.0 metre lead the probe either connects directly to a 1 metre sensor (330180-10, -11 or -12) or is extended with a 330130 cable so that the combined length equals the sensor length: 330130-040 for a 5 metre sensor (330180-50, -51, -52) and 330130-080 for a 9 metre sensor (330180-90, -91, -92). Service above 177 °C requires a different part number, the extended temperature reverse mount probe 330195, rated to 218 °C at the tip and used with 330190 cable; it is not an option field of 330105.

Why Seven Star LLC

Seven Star LLC supplies Bently Nevada proximity system components to rotating machinery teams in Oman and across the GCC.

The exact model and revision are confirmed with the customer before ordering.

Other 330105 Codes Buyers Search For

Part number	Unthreaded / case length	Total length	Connector and cable	Approval
330105-02-12-05-02-00	0.2 in / 1.2 in (fixed)	0.5 m	02: ClickLoc, standard cable	00: Not required
330105-02-12-10-02-00	0.2 in / 1.2 in (fixed)	1.0 m	02: ClickLoc, standard cable	00: Not required
330105-02-12-10-12-05	0.2 in / 1.2 in (fixed)	1.0 m	12: ClickLoc, FluidLoc cable	05: CSA, ATEX, IECEx

The 0.5 m version (330105-02-12-05-02-00) is the most searched 330105 code. Like every 3300 XL probe, its length must be matched with an extension cable and a 3300 XL Proximitor Sensor so that the total system length is 5.0 or 9.0 m. Codes ending in -10 or -15 are not valid approval options; check the probe label again before ordering.

Request a Quote for Bently Nevada 330105-02-12-10-02-05 3300 XL Probe

For the Bently Nevada 330105 probe or any related control and instrumentation requirement, contact the Seven Star LLC team. Submit a formal inquiry through our RFQ page with your measurement range, connection and configuration, and our specialists will respond with a detailed commercial proposal and the official Bently documentation.

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About brand

Bently Nevada is the American machinery protection and condition monitoring brand behind the 3500 rack, the 3300 XL proximity probe and the System 1 software. It was founded in 1961 in Minden, Nevada, and is today a Baker Hughes business.

Seven Star LLC is an independent supplier in Muscat. We list Bently Nevada monitors, I/O modules, probes, proximitors, velocity transducers and transmitters for rotating equipment in Oman and the GCC, and source them by full part number.

Bently Nevada company profile

Established	1961, Minden, Nevada, USA, by Donald E. Bently. The business started earlier as Bently Scientific in Berkeley, California (1956).
Known for	The first commercial eddy-current proximity transducers for measuring shaft vibration and position on high-speed turbomachinery
Ownership	Acquired by GE Energy in 2002; part of Baker Hughes since GE Oil & Gas combined with Baker Hughes in 2017
Rack generations	5000 series (from 1965), 3300 series (from 1988), 3500 series (from 1995), Orbit 60 (current platform)
Product families	Machinery protection racks, proximity probes and proximitors, Keyphasor sensors, velocity and acceleration transducers, 2-wire vibration transmitters, general-purpose monitors, portable analyzers, wireless sensors and System 1 condition monitoring software
Typical machines	Steam and gas turbines, centrifugal and reciprocating compressors, pumps, motors, generators, fans and gearboxes

Milestones

1956: Donald E. Bently starts Bently Scientific in Berkeley, California.
1961: The company moves to Minden, Nevada, as Bently Nevada.
1965: The 5000 series monitoring system is introduced.
1988: The 3300 series follows.
1995: The 3500 machinery protection system is launched.
2002 and 2017: GE Energy acquires Bently Nevada; it becomes part of Baker Hughes in 2017.

Bently Nevada product series

Series	Type	What it does
3500	Machinery protection rack	Continuous online protection with alarm and danger relays. Modules include the 3500/15 power supply, 3500/20 rack interface, 3500/25 Keyphasor, 3500/42M proximitor/seismic, 3500/50 tachometer, 3500/60 temperature, 3500/33 relay and 3500/92 communication gateway
3500 recip modules	Reciprocating compressor monitoring	3500/70M impulse velocity, 3500/72M rod position and 3500/77M cylinder pressure
Orbit 60	Protection and monitoring platform	The current Bently Nevada platform for protection, condition monitoring and data integration with System 1
3300 XL 8 mm	Proximity transducer system	Probe, extension cable and proximitor sensor for radial vibration, thrust position and Keyphasor reference on fluid-film bearing machines; also 5 mm and 25 mm versions
330500 Velomitor, 190501 Velomitor CT	Piezo-velocity sensors	Casing velocity on rolling-element bearing machines and low-speed cooling tower fans
990 and 991	2-wire transmitters	4-20 mA vibration (990) and thrust position (991) signals straight into a PLC or DCS, without a monitor rack
1900/65A, 2300	Compact monitors	Protection for balance-of-plant pumps, fans and motors where a full 3500 rack is not justified

A proximity probe measures the gap to the shaft, so it sees shaft movement inside a fluid-film bearing directly. A velocity or acceleration sensor sits on the casing and suits rolling-element bearing machines. Critical turbomachinery usually carries two X-Y probes per bearing, two axial probes for thrust position and a Keyphasor probe for speed and phase.

Where Bently Nevada systems are used

In Oman and the GCC, Bently Nevada racks and probes protect gas turbines, compressors and steam turbines in gas processing, LNG, refining, petrochemical, power and desalination plants. Many installations are 3500 racks that have run for years, so most requests are for like-for-like module, probe, extension cable and proximitor replacements, plus upgrades to newer monitors.

Ordering and replacement: what we need

For probes and proximitors, send the full part number with all option digits (for example 330101-00-27-10-02-05). The digits set the probe length, cable length, connector and approvals, and the probe, cable and proximitor must match in total system length. For 3500 modules, send the module and I/O part numbers from the rack and say whether the I/O is internal or external termination, or barrier type. If a module is obsolete, we quote the replacement that Bently Nevada names and point out any configuration or firmware change.

Facts checked against Baker Hughes Bently Nevada pages and published company history, October 2026.

Browse Bently Nevada products by category: Vibration.

FAQ

Questions about the Bently Nevada 330105-02-12-10-02-05 3300 XL Probe

Answers from our engineering team on installation, compatibility and integration.

01What does the part number 330105-02-12-10-02-05 mean?

In the Bently Nevada 330105 probe part number, 330105 is the 3300 XL 8 mm reverse mount probe (3/8-24 UNF thread); 02 is the 0.2 in unthreaded length, 12 the 1.2 in case length, 10 the 1.0 m total length, 02 the miniature coaxial ClickLoc connector and 05 the CSA, ATEX and IECEx approvals.

02What is the measurement range of the 3300 XL 8 mm probe?

The 3300 XL 8 mm probe has a linear measurement range of 2 mm (80 mils) per the official Bently Nevada data sheet.

03Can the probe be used in hazardous areas?

Yes. This variant carries CSA, ATEX and IECEx agency approvals (option 05).

04What temperature is the standard probe rated for?

Standard 3300 XL probes and cables are rated to 177 degrees C (350 degrees F); extended temperature range (ETR) components are available for hotter environments.

05Which Proximitor and cable match this probe?

The probe is used with the 3300 XL extension cable and 3300 XL Proximitor sensor; the 1.0 m probe configuration mates with the matching system length.