Bently Nevada 330102-00-50-90-01-00 3300 XL 8 mm Armored Probe

Bently Nevada 330102-00-50-90-01-00: armored 3300 XL 8 mm probe, 3/8-24 UNF thread

The Bently Nevada 330102-00-50-90-01-00 is a 3300 XL 8 mm eddy-current proximity probe in the 330102 family, built with a 3/8-24 UNF threaded stainless case and a flexible stainless armor over the probe cable. Its 8 mm tip is molded from polyphenylene sulfide, and the probe measures the gap between the tip and a conductive shaft or collar, producing the vibration and position signals that machinery protection monitors depend on. Seven Star LLC supplies this probe in Oman and the GCC as an independent supplier in Muscat.

The part number follows the ordering pattern 330102-AA-BB-CC-DD-EE, which is decoded in the next section. This is the long-lead version. With a 9.0 m integral cable it connects directly to a 9 m 3300 XL Proximitor Sensor with no extension cable, which suits machines where the junction box has to sit well away from hot or hard-to-reach bearing housings. The 5.0 in case gives extra reach through thick casing walls such as large compressor and steam turbine bearing housings.

Decoding 330102-00-50-90-01-00

This decoding follows the ordering information table in the Bently Nevada 3300 XL 8 mm datasheet. The datasheet requires the unthreaded length to be shorter than the case length (by at least 0.8 in), and gives the case length range as 0.8 to 9.6 in.

330102-00-50-90-01-00 technical specifications

Specifications are quoted for a 3300 XL 8 mm system between +18 and +27 °C with an AISI 4140 steel target, as the datasheet states, and apply to systems built only from 3300 XL 8 mm components.

How the 330102-00-50-90-01-00 measures

The probe tip contains a coil that is driven at high frequency by the 3300 XL Proximitor Sensor. Eddy currents induced in the conductive target absorb energy, and the Proximitor converts the change into a voltage proportional to the tip-to-target distance. The DC part of the signal is shaft position, for example thrust or average radial position, and the AC part is vibration. The same system can also produce a Keyphasor or speed signal from a notch or key on the shaft.

The Proximitor Sensor output has a 50 Ω resistance, the field wiring from the Proximitor to the monitor may be up to 305 m (1,000 ft), and the frequency response is flat from 0 to 10 kHz with up to 305 m of field wiring. The datasheet states that a standard 3300 XL 8 mm 5 m system complies with the API 670 requirements for mechanical configuration, linear range, accuracy and temperature stability.

Where the 330102-00-50-90-01-00 fits in the system

Because this probe has a 9.0 m cable, it is intended for a 9 m system with a 3300 XL Proximitor Sensor ordered as 330180-90, 330180-91 or 330180-92 (panel mount, DIN mount or no mounting hardware), with no extension cable. Armored extension cable is available as 330130 with cable option 01 or 03 (armored, or armored with connector protector). Related probes in the same family include the unarmored 330101 and the sibling armored parts in the 330102 range.

The 3300 XL components are interchangeable with each other without bench matching. The datasheet notes that mixing XL and older 3300 components limits the system performance to the non-XL specification. The signal normally goes to a 3500 or other monitor input.

Selection checklist for 330102-00-50-90-01-00

• Probe thread: 3/8-24 UNF; match the tapped hole or probe holder.
• Case length 5.0 in with 0.0 in unthreaded.
• Total length 9.0 m (29.5 ft), which must match the Proximitor system length with any extension cable.
• Connector code 01: miniature coaxial ClickLoc connector with connector protector, standard cable.
• Approval code 00: no agency approval option required.
• Target material: Proximitors are factory calibrated to AISI 4140 steel; ask if another target material applies.

Match the probe to a 9 m system: a 9 m probe needs the 9 meter Proximitor option (330180-90, -91 or -92) and no extension cable. The 9 m system has slightly wider tolerances than the 1 m and 5 m systems, and you should plan for that in alarm settings.

Installation, gapping and maintenance of 330102-00-50-90-01-00

Mount the probe so that the tip is square to the target and at least 38 mm (1.5 in) from the next radial probe tip, or 40 mm (1.6 in) for axial position probes, to limit cross-talk below 50 mV. Set the gap with the Proximitor powered, aiming for about -9 Vdc at the output (1.27 mm, 50 mils), and lock the probe with the locknut at the recommended case torque of 11.2 N·m (100 in·lbf). The connector is a finger-tight ClickLoc type and requires no tools; the maximum connector torque is 0.565 N·m. Minimum cable bend radius is 25.4 mm (1.0 in).

Armor protects the probe cable from abrasion and impact between the probe and the junction box, and the armor ferrule has a maximum diameter of 9.5 mm (0.38 in) according to the datasheet drawings, so plan the gland or conduit entry accordingly. This part is supplied with a connector protector, which gives environmental protection to the probe-to-extension connection.

In service, check the DC gap voltage against the commissioning record, inspect the tip for wear or oil ingress, and verify the loop with a test plug or the monitor’s own diagnostics. A probe exposed to temperatures below -34 °C (-30 °F) can have its pressure seal damaged, so keep that in mind during cold storage and transport.

Typical applications of 330102-00-50-90-01-00 in Oman and the GCC

Probes of this type are fitted to compressors, steam and gas turbines, pumps and motors on fluid-film bearings in oil and gas, power generation, desalination, petrochemical and industrial water plants. In the Gulf environment, ambient heat, dust and humidity are the main concerns for the field wiring and Proximitor housing. The probe itself is rated from -52 to +177 °C and showed under 3% scale-factor change in 93% humidity testing, per the datasheet, while the armor gives extra mechanical protection in congested machine skids.

Seven Star LLC can quote this probe with matching Proximitor Sensors, extension cables and mounting hardware for turbine and compressor overhauls, instrumentation upgrades and spare-parts stocking at sites in Oman and the wider GCC.

Family comparison for 330102-00-50-90-01-00

The extended temperature range (ETR) probes are rated to 218 °C at the tip, while this standard-temperature probe is rated to 177 °C, so choose the ETR family only when the probe or lead genuinely exceeds the standard rating.

Information to send with an RFQ for 330102-00-50-90-01-00

• Full part number and quantity.
• Machine type and where the probe is installed (radial, axial or Keyphasor).
• Existing Proximitor Sensor and extension cable part numbers, so system length can be confirmed.
• Hazardous-area classification, if approvals are required.
• Delivery location in Oman or the GCC and the required timeline.

Related Bently Nevada products: Bently Nevada 330105-02-12-10-02-05 3300 XL Probe, Bently Nevada 32000-00-00-04-470-01-02 Proximity Probe Housing, Bently Nevada 9200-09-01-01-00 Velomitor® Velocity Transducer, Bently Nevada 3300 XL 8mm Probe 330103-00-05-10-01-00, Bently Nevada 990-05-50-01-00 2-Wire Vibration Transmitter and Bently Nevada 3300 XL 8mm Proximity Probe - 330101-00-27-10-02-05.

Documents and quotation

The Bently Nevada 3300 XL 8 mm proximity transducer system datasheet is attached on this page and covers the ordering table, specifications, drawings and approvals for 330102-series probes. Read it with the installation drawings for your machine before finalising the order.

Send us the part number 330102-00-50-90-01-00 and the quantity, and Seven Star LLC will confirm availability and lead time in a written quotation.