Bently Nevada 330101-08-20-10-02-00 3300 XL 8 mm Probe, 3/8-24 UNF Thread

330101-08-20-10-02-00: Matching a Short-Case, 1 m Configuration

This configuration differs from the long-case 330101 variants in two ways that both matter at installation: the overall case length is 2.0 in with a 0.8 in unthreaded length, and the total assembly length is 1.0 meter. That combination is the right pick when the probe holder is a shallow design and the junction box sits close to the probe — a longer-cased variant would bottom out in the holder before reaching the specified gap.

Decoded against the published configuration data: 330101 = 3300 XL 8 mm probe platform. 08 = unthreaded length 0.8 in. 20 = overall case length 2.0 in. 10 = total length 1.0 meter. 02 = miniature coaxial ClickLoc connector, standard cable. 00 = agency approval not required.

Signal performance is identical to the rest of the 330101 platform: 2 mm linear range and 7.87 V/mm (200 mV/mil) incremental scale factor at ±5%. Because the scale factor matches, a monitor configured for another 330101 probe reads this one without scaling changes. Temperature range is -52 °C to +177 °C, and the case is AISI 303/304 stainless steel.

Where This Configuration Sits Against the Other 330101 Case Options

Case length and total length are the two numbers that decide whether a replacement probe seats correctly and reaches the target surface. These are the comparable configurations in the same family:

All Bently Nevada parts · Sensors & Instrumentation

Why Agency Approval Not Required Is Itself a Constraint

This configuration carries no agency approval designation. That is a benefit in an unclassified installation, where an approved variant would be paying for a certification it does not need — but it is a hard limit in a classified area. A probe with approval not required cannot be used where the area classification requires a certified variant, regardless of how well it fits mechanically.

Confirm the area classification before substituting this variant into an installation that previously used an approved one. Mechanically identical does not mean acceptable where compliance is the question.

Gap Setting and Verification

Recommended gap on this platform is -9 Vdc, approximately 1.27 mm (50 mils) for radial vibration monitoring. With a 2.0 in case and 0.8 in unthreaded length, the probe has less reach than the long-case variants, so gap verification after installation matters more here — confirm the gap voltage at the monitor end rather than inferring it from probe position.

The probe seals differential pressure between tip and case with a Viton O-ring and is not field-repairable. Cable pull strength at the ClickLoc connector is the mechanical point worth checking on an aged installation.

Supply & terms: Stock status: In Stock · Condition: New · Warranty: One Year · Origin: US. Listed by AutoDCS Tech Parts Team · Last updated 2026-10-07.

Bently Nevada brand hub