Bently Nevada 330195-02-12-50-00 Proximity Probe

3300 XL 8mm Reverse Mount Probe 330195-02-12-50-00

Product Introduction

The Bently Nevada 330195-02-12-50-00 delivers exceptional performance for non-contact vibration and position sensing in large rotating equipment. As a distinguished member of the 3300 XL series, this 8 mm proximity probe offers outstanding accuracy and signal integrity over extended cable runs. Meanwhile, its reverse mount design provides valuable installation flexibility in complex machinery configurations. Specifically, this 5.0-meter version suits large turbines, generators, and heavy-duty compressors where longer cable lengths are necessary. However, operators must note that this 3300 XL 8 mm probe is specifically engineered for use with the 5-meter Proximitor sensor exclusively. Therefore, proper system matching ensures optimal measurement accuracy and reliability.

Technical Specifications

This 330195-02-12-50-00 model features a substantial total length of 5.0 meters (16.4 feet) , accommodating large machinery installations. In addition, its case incorporates a standard 3/8-24 UNF thread with a maximum thread engagement of 0.563 inches. Moreover, the probe tip is manufactured from rugged Polyphenylene sulfide (PPS), which delivers excellent chemical and thermal resistance. Similarly, the probe case uses AISI 303 or 304 stainless steel (SST), providing superior corrosion protection in harsh industrial environments. For electrical characteristics, the nominal probe DC resistance (RPROBE) from center conductor to outer conductor measures 8.73 ± 0.50 Ω for this 5.0-metre version. Consequently, this resistance value ensures proper impedance matching with the dedicated 5-meter Proximitor sensor.

Critical System Compatibility

The 330195-02-12-50-00 requires special attention regarding system compatibility. Specifically, 5-meter probes are exclusively designed for use with the 5-meter Proximitor sensor only. For instance, pairing this probe with a different Proximitor model will compromise measurement accuracy and system performance. Furthermore, this compatibility requirement ensures proper signal attenuation characteristics across the extended cable length. Meanwhile, the Bently Nevada 3300 XL system's engineering team designed this matching to maintain consistent scale factors and linearity. Therefore, always verify your Proximitor model before ordering this 5.0-meter probe version.

Environmental and Mechanical Ratings

The Bently Nevada 3300 XL probe operates reliably across a broad temperature spectrum. For the standard configuration, the operating and storage temperature spans from -52°C to +177°C (-62°F to +350°F) . However, exposing the probe to temperatures below –34˚C (-30˚F) may cause premature failure of the pressure seal. Nevertheless, the probe demonstrates outstanding humidity resistance in demanding conditions. For instance, testing confirms less than a 3% change in Average Scale Factor (ASF) when subjected to 93% relative humidity for up to 56 days, following IEC standard 68-2-3. Additionally, the sealing mechanism uses a Viton® O-ring, which effectively seals differential pressure between the probe tip and the case.

Installation Guidelines

When installing the 330195-02-12-50-00, technicians must follow specific procedures carefully. First, inspect all threads thoroughly to ensure they remain clean and completely free from damage. Next, verify that the thread engagement does not exceed the maximum of 0.563 inches. Furthermore, proper grounding is absolutely essential to prevent electrical interference from affecting the measurement signal. Meanwhile, route the probe cable with extra care, avoiding sharp bends, kinks, or excessive tensile stress. In addition, always adhere to the torque specifications documented in the system's installation manual. For this reason, the reverse mount design of this proximity probe may require specific clearance adjustments within the mounting fixture. Finally, confirm that your Proximitor sensor matches the 5.0-meter cable length requirement before system energization.

Packaging and Logistics

Each unit of the Bently Nevada 330195-02-12-50-00 receives robust packaging to prevent transit-related damage. Specifically, the standard packaging includes the probe itself along with its integral 5.0-meter cable and connector. We also employ protective materials to shield the sensitive tip and connector contacts during shipping. Moreover, all orders are dispatched using premium, expedited shipping services. Therefore, we partner with global carriers such as FedEx, UPS, and DHL. Consequently, your critical measurement device arrives safely and promptly, minimizing any disruption to your maintenance or installation schedule.

Frequently Asked Questions (FAQ)

1. Why must this 5.0-meter probe be used with a specific Proximitor?
The Bently Nevada 330195-02-12-50-00 is exclusively designed for use with the 5-meter Proximitor sensor only. This matching ensures proper signal attenuation and maintains accurate scale factors across the extended cable length.

2. What is the DC resistance value for this 5.0-metre version?
For this 330195-02-12-50-00, the nominal probe DC resistance (RPROBE) measures 8.73 ± 0.50 Ω from the center conductor to the outer conductor.

3. What is the exact thread specification for this probe?
This 330195-02-12-50-00 model features a standard 3/8-24 UNF thread, compatible with most standard mounting hardware.

4. Are these 3300 XL 8 mm probes pressure tested before shipment?
No, the 3300 XL 8 mm probes are not pressure tested prior to shipment. However, the manufacturer offers this service upon special request through their custom design department.

5. Can this probe operate in high-humidity environments?
Yes, the 3300 XL probe performs reliably in high humidity. For example, testing confirms less than a 3% change in its scale factor after 56 days at 93% relative humidity, per IEC standard 68-2-3.