Brand: Bently Nevada

Bently Nevada 330780-90-00 3300 XL 11 mm Proximitor, 9 m Panel

Name: Bently Nevada 330780-90-00 3300 XL 11 mm Proximitor 9m Panel
Brand: Bently Nevada
SKU: 330780-90-00

Description

330780-90-00: 3300 XL 11 mm Proximitor Sensor, 9.0 m system, panel mount

The Bently Nevada 330780-90-00 is a 3300 XL 11 mm Proximitor Sensor built for a 9.0 m (29.5 ft) system with four-hole panel mounting and no agency approval option. It pairs with an 11 mm probe plus extension cable and delivers 3.94 V/mm (100 mV/mil) over a 4.0 mm linear range.

For this part the decoding of 330780-AA-BB is straightforward: 90 means 9.0 m system length with panel mount, and 00 means approvals not required.

Segment	Code	Meaning (from the ordering table)
330780	330780	3300 XL 11 mm Proximitor Sensor
A: total length and mounting	90	9.0 m system length, panel mount
B: agency approval	00	Not required

330780-90-00 technical specifications

Parameter	Specification
Manufacturer / part number	Bently Nevada 330780-90-00
Product	3300 XL 11 mm Proximitor Sensor
System length / mounting	9.0 m (29.5 ft) including extension cable; panel mount
Agency approval option	00 (not required)
Probe input	One non-contacting 3300 XL 11 mm probe with extension cable
Supply voltage	-17.5 to -26 Vdc at 12 mA maximum without barriers; -23 to -26 Vdc with barriers
Supply sensitivity	Less than 2 mV output change per volt of supply change
Output resistance	50 Ω
Linear range	4.0 mm (160 mils), from about 0.5 to 4.5 mm (20 to 180 mils), roughly -1 to -17 Vdc
Extended linear range	About 0.5 to 5.0 mm (20 to 200 mils), -1 to -19 Vdc; not applicable with zener barriers
Recommended gap	2.5 mm (100 mils)
Incremental scale factor	3.94 V/mm (100 mV/mil) ±10% including interchangeability error, in 0.5 mm (20 mil) steps over the 4.0 mm range
Deviation from best-fit line	Less than ±0.10 mm (±4 mils) standard range; less than ±0.15 mm (±6 mils) extended range
Frequency response	0 to 8 kHz, +0/-3 dB typical, with up to 305 m of field wiring
Field wiring	0.2 to 1.5 mm² (16 to 24 AWG), three-conductor shielded triad recommended, up to 305 m (1,000 ft)
Target size	Flat target 30.5 mm (1.2 in) minimum diameter; shaft 152 mm (6.0 in) recommended minimum
Sensor operating temperature	-52 to +100 °C (-62 to +212 °F); storage -52 to +105 °C
Humidity	100% condensing, non-submersible when connectors are protected; damp heat tested to IEC 68-2-3
Sensor material and weight	A380 aluminum; 255 g (9 oz)

What the 330780-90-00 measures

The Proximitor Sensor sends a high-frequency drive to the probe and measures how the conductive target changes the coil’s electrical behaviour. The output is a negative dc voltage proportional to gap with vibration riding on top. The 11 mm probe is chosen when a larger gap range is needed, for example axial position of a thrust collar, where an 8 mm system with 2 mm range would be too tight.

330780-90-00: when the 9.0 m panel version is the right fit

The long system length lets the sensor sit on a backplate in a cabinet some distance from the machine. The probe and extension must add to 9.0 m: a 1.0 m probe with an 8.0 m extension, or a single 9.0 m probe. Five-metre probes must not be used with this sensor.

Panel mount uses the four-hole pattern shared with earlier Proximitor Sensors, which makes this part a practical candidate when you are keeping an existing mounting panel. Replacement pad: 138492-01.

Related parts and family overview for 330780-90-00

Related items are 330780-91-00 (9.0 m DIN), 330780-91-05 (9.0 m DIN with multiple approvals), 330780-50-00 and 330780-51-00 (5.0 m versions). The ordering table for the 330780 sensor offers six length and mounting codes (50, 51, 52, 90, 91, 92) and two approval codes (00 and 05). Codes 52 and 92 are the versions supplied without mounting hardware. The sensors shown below are the ones commonly requested.

Part number	System length	Mounting	Approval option
330780-50-00	5.0 m (16.4 ft)	Panel mount	None
330780-51-00	5.0 m (16.4 ft)	DIN mount	None
330780-90-00	9.0 m (29.5 ft)	Panel mount	None
330780-91-00	9.0 m (29.5 ft)	DIN mount	None
330780-91-05	9.0 m (29.5 ft)	DIN mount	Multiple approvals (05)

Selection and ordering checklist for 330780-90-00

Confirm probe plus extension cable total 9.0 m
Confirm panel mounting is needed
Confirm the 11 mm probe thread and armor
Check the absence of approvals suits the area classification
Confirm monitor input for 100 mV/mil
Plan cable routing for the long extension cable

Installation, commissioning and maintenance of the 330780-90-00

Mount with four thread-forming screws, make field wiring connections and connect the extension cable by hand. For a 9 m system, secure the extension along its route to prevent strain at the ClickLoc joints.

After wiring, confirm the supply is within -17.5 to -26 Vdc, set the gap and check the output. Record gap voltage and the dynamic signal as a baseline.

Replacement mounting pad: 138492-01
Panel screws: 04310310 (four per sensor)
Connector protectors: 03839410 (male) and 03839420 (female)
Keep connectors clean and dry before mating
One spare covers all 9.0 m panel-mount 11 mm channels

Typical applications in Oman and the GCC

In Oman and the GCC, the 9 m panel version suits large units such as gas compressors and turbine trains where the machine is on one platform and the instrument room is elsewhere. Typical sites are oil and gas processing, power generation and desalination, where long cable trays are normal and cabinets are air conditioned.

Information to send with an RFQ for 330780-90-00

Part number 330780-90-00 and quantity
Probe and extension part numbers (total 9.0 m)
Machine type and measurement duty
Existing sensor part number if replacing
Delivery location in Oman or the GCC and required date

Documents and quotation

The manufacturer datasheet for the 330780-90-00 is attached on this page under Documents, so wiring, ordering options and environmental limits can be checked before you order.

Dimensions and mounting outlines are included in the datasheet. Seven Star LLC is an independent supplier based in Muscat; submit the part number, quantity and delivery location and we reply with availability and a quotation.

Other Models in the 3300xl Proximitor 11mm Range

Seven Star LLC supplies models from the 3300xl Proximitor 11mm range in Oman and the GCC. Compare the related models below and request a quote for the one that matches your application.

Model	Category
Bently Nevada 330780-91-00 3300 XL 11 mm Proximitor, 9 m DIN	Vibration Monitoring	View details
Bently Nevada 330780-51-00 3300 XL 11 mm Proximitor, 5 m DIN	Vibration Monitoring	View details
Bently Nevada 330780-50-00 3300 XL 11 mm Proximitor, 5 m Panel	Vibration Monitoring	View details
Bently Nevada 330780-91-05 3300 XL 11 mm Proximitor, 9 m DIN	Vibration Monitoring	View details

Datasheets & Documents

Datasheet Bently Nevada 330780-90-00 Datasheet Download

Reviews (0)

Reviews

There are no reviews yet.

How would you rate this product?

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 330780-90-00 3300 XL 11 mm

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

01What does 330780-90-00 mean?

It follows the 330780-AA-BB pattern. Code 90 means a 9.0 m system with panel mount, and 00 means no agency approval option.

02Which extension cable is used with it?

The 330730 extension is offered in 4.0 m (040) and 8.0 m (080). A 1.0 m probe with the 8.0 m cable makes a 9.0 m system.

03Does the 330780-90-00 include mounting hardware?

Yes, code 90 is the panel-mount version. Codes 52 and 92 are the versions without mounting hardware.

04What accuracy does it give?

Incremental scale factor is 3.94 V/mm (100 mV/mil) ±10% including interchangeability error, measured in 0.5 mm steps over the 4.0 mm range.

05How do I avoid cross-talk between probes?

Keep probe tips at least 64 mm apart for axial and 58 mm for radial positions on a 76.2 mm shaft to keep cross-talk below 50 mV.