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Bently Nevada Probe Selection for 3500 and Orbit 60: A 3300 XL Guide
November 06 , 2026
AMIKON TECHNICAL JOURNALSELECTION FIELD GUIDE / 01

BENTLY NEVADA / 3300 XL

Every probe.
One matched
measurement chain.

A practical selection guide for 3500 installations and Orbit 60 upgrade planning.

Find your measurement chain

PROBE · EXTENSION CABLE · PROXIMITOR · MONITOR

THE COMPLETE SIGNAL PATH
ONE MEASUREMENT POINTSchematic / not to scale

Baker Hughes' Orbit 60 Compact announcement introduces 7-slot and 11-slot rack designs for installations with limited space. Its current platform page identifies early-2027 availability for the compact chassis. For plants maintaining existing 3500 installations, the immediate question is practical: which probe, cable and Proximitor configuration does each measurement point require?

01 / COMPRESSOR SHAFT VIBRATION

Start with the probe's complete configuration

For centrifugal compressors with fluid-film bearings, the 3300 XL 8 mm family is a starting point for evaluating shaft-relative vibration and position. A proximity probe observes shaft movement relative to its mounting location; a casing-mounted vibration sensor measures housing motion.

IMPERIAL THREAD / 1 mBently Nevada 330101-00-40-10-02-05

330101-00-40-10-02-05

3300 XL 8 mm probe with a 3/8-24 UNF thread and 1 m total probe length.

Check: thread, case dimensions, extension cable and approval requirements.

View probe details →
METRIC THREAD / 5 mBently Nevada 330103-00-05-50-02-CN

330103-00-05-50-02-CN

M10 × 1 thread, 50 mm case and 5 m total probe length.

Check: metric mounting, five-metre Proximitor configuration and the complete approval code.

View probe details →

Thread, unthreaded length, case length, lead configuration and certification requirements all matter. Photograph the complete probe label and record the installed Proximitor model before requesting a replacement.

02 / STANDARD 8 mm SYSTEMS

Match the cable to the Proximitor system length

Probe length plus extension cable length must equal the selected Proximitor system length. Choose an example below to see the relationship.

PROBE1 m
EXTENSION CABLE4 m
SYSTEM LENGTH5 m

330130-040-00-00 is a 4 m standard extension-cable example. Select a five-metre 330180 Proximitor configuration with the required mounting and approval options.

PROBE1 m
EXTENSION CABLE8 m
SYSTEM LENGTH9 m

330130-080-00-CN is an 8 m extension-cable example. Select a nine-metre 330180 Proximitor configuration with the required mounting and approval options.

PROBE5 m
EXTENSION CABLENone
SYSTEM LENGTH5 m

A five-metre probe connects directly to its matching five-metre 330180 Proximitor. No extension cable is required. Check routing distance before selecting the probe length.

Length matching is one part of selection. Confirm family, mounting, connector protection and approvals separately. The five- or nine-metre length concerns the probe-side chain; field wiring from the Proximitor to the monitor is considered separately.

Read the ordering code: 330101-00-48-50-02-05
3301018 mm / 3/8-24 UNF / no armor000.0 in unthreaded length484.8 in case length505 m total probe length02ClickLoc / standard cable05CSA, ATEX, IECEx option

This five-metre probe configuration connects directly to a matching five-metre Proximitor. Official ordering tables ↗

03 / RESTRICTED INSTALLATION SPACE

For tight compressor clearances, evaluate NSv

Small shafts, restricted counterbores and limited side clearance can require a different family. AMIKON lists the following components for evaluating an NSv measurement chain:

The length relationship is 0.5 m + 6.5 m = 7 m. The listed variants have different approval suffixes, so this example does not establish a complete approved assembly for a particular hazardous-area installation.

Can a 330180 replace a 330980?

NSv probes, cables and electronics must be selected within the supported NSv configuration. A standard 330180 is not a default substitute for a 330980 simply because the connectors appear similar. Read the official NSv requirements ↗

04 / LARGER DISPLACEMENT MEASUREMENTS

Distinguish 330780 from 330878

3300 XL 11 mm SYSTEMBently Nevada 330780-50-00

330780-50-00

4 mmmatched-system linear range

Nominal sensitivity: 100 mV/mil. Evaluate when the standard 8 mm range is insufficient, with the corresponding 11 mm probe, cable and configured monitor input.

Official 11 mm datasheet ↗
3300 XL 50 mm SYSTEMBently Nevada 330878-50-00

330878-50-00

27.9 mmmatched-system linear range

Nominal sensitivity: 10 mV/mil. Evaluate for large steam-turbine expansion measurements, checking target area, collar geometry and expected thermal movement.

Official 50 mm datasheet ↗

A change in range requires a review of the entire transducer chain and channel scaling. Select the probe, cable and Proximitor as a supported system.

05 / INTEGRATED INSTALLATION

Bring the Proximitor closer with PROXPAC XL

Bently Nevada 330880-28-15-044-01-02 PROXPAC XL assembly

AMIKON lists the 330880-28-15-044-01-02 PROXPAC XL assembly. Its design integrates a Proximitor with a dedicated probe housing, eliminating the separate extension cable between the probe and its associated Proximitor.

What should be checked before choosing PROXPAC XL?

Confirm sleeve dimensions, installation access, environmental conditions and the exact assembly options. Retain the complete ordering number in replacement enquiries. Official PROXPAC XL datasheet ↗

06 / MONITOR INPUT AND UPGRADE PLANNING

Complete the review at the rack input

AMIKON's 3500 range includes 3500/42M 140734-02. The 3500/42M family accepts proximity, velocity or acceleration signals. Identify both the monitor and its I/O module, then confirm the measurement type, sensitivity, wiring and channel settings. Official 3500/42M datasheet ↗

For an Orbit 60 migration, carry the same probe-side information into the engineering review. Check the retained transducer system against the selected input module, supported measurement, scaling and protection configuration. Compatibility must be established for the complete measurement point.

BEFORE YOU REQUEST A QUOTE

Prepare the details for your measurement point

Tick the items you have ready, then include them in your enquiry to Frida.

Keep CN, BR, X1 and MOD references exactly as shown on the installed labels.

YOUR AMIKON CONTACT

Discuss your Bently Nevada parts enquiry with Frida

Send your complete model numbers and quantity, or share the installed labels when the exact configuration is uncertain. Ask for current availability and delivery terms.

Frida. Sales Manager / AMIKON

sales17@amikon.cn
WhatsApp: +86 15359408275

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