Bently Nevada 173688-01-20-12-05 Proximity Probe Overview

The Bently Nevada 173688-01-20-12-05 is a 3300 XL 8 mm proximity probe made in the USA. This probe features 1/2-14 NPT mounting threads for standard industrial mounting holes. The unthreaded length option 01 provides 0.1 inch of smooth case before the threads begin. Overall case length option 20 measures 2.0 inches for the complete probe case. System length option 20 delivers 2.0 meters (6.6 feet) of total system length. Connector option 12 specifies a miniature ClickLoc coaxial connector with FluidLoc cable. Agency approval option 05 includes CSA, ATEX, and IECEx certifications for hazardous area installations worldwide.

Ordering Configuration Details

The Bently Nevada 173688-01-20-12-05 includes carefully selected options for specific applications. The 0.1 inch unthreaded length allows proper probe tip positioning relative to the mounting surface. The 2.0 inch overall case length suits standard probe mounting hole depths. Total system length of 2.0 meters provides flexibility for nearby Proximitor sensor placement. However, note an important consideration about the FluidLoc cable option. The –12 FluidLoc cable option is not necessary on the vast majority of 330105 and 330106 installations due to the probe sleeve. Therefore, consider your application carefully before ordering the FluidLoc cable option for these probes.

Mechanical Specifications

The Bently Nevada 173688-01-20-12-05 uses high quality materials throughout. Probe tip material is Polyphenylene sulfide (PPS) for excellent chemical resistance. Probe case material is AISI 303 or 304 stainless steel (SST) for durability and corrosion resistance. The probe sealing material consists of a Viton® O-ring for differential pressure sealing. However, probes are not pressure tested prior to shipment. Consequently, contact Bently Nevada's custom design department if you require a pressure seal test for your specific application. Total weight of the probe is 0.323 kg for easy handling.

FluidLoc Cable Consideration

The Bently Nevada 173688-01-20-12-05 includes the FluidLoc cable option as ordered. This option prevents oil and other liquids from leaking out of the machine through the cable interior. Nevertheless, the FluidLoc option is not necessary for most 3300 XL 8 mm probe installations. The probe sleeve typically provides adequate sealing for standard applications. Therefore, only order the FluidLoc option when your specific application requires enhanced oil leak prevention.

Connector & Cable Technology

This probe uses a miniature ClickLoc coaxial connector for reliable connections. The ClickLoc connector locks into place with an audible click when mated. As a result, it prevents the connection from loosening due to vibration. This feature is critical for rotating machinery applications. The gold-plated brass contacts ensure excellent signal transmission and corrosion resistance.

Key Features & Benefits

• 1/2-14 NPT mounting threads – The 173688-01-20-12-05 fits standard industrial mounting holes.

• Multiple agency approvals – CSA, ATEX, and IECEx certifications for hazardous area use.

• FluidLoc cable option – Prevents oil leaks through the cable interior when needed.

• ClickLoc connector – Gold-plated brass connector locks firmly to prevent loosening.

• Viton O-ring seal – Provides differential pressure sealing between probe tip and case.

• 2.0 meter system length – Offers flexible placement of the Proximitor sensor.

Installation Guidelines

Follow these steps to install the Bently Nevada 173688-01-20-12-05 correctly. First, clean the 1/2-14 NPT mounting hole threads thoroughly before installation. Second, apply thread sealant suitable for your process conditions. Third, thread the probe into the mounting hole by hand until snug. Fourth, tighten the probe to the recommended torque for 8 mm probes (consult manual). Fifth, connect the ClickLoc connector to the extension cable until it clicks. Finally, verify the probe gap setting using a proximity meter.

Do not overtighten the probe to avoid damaging the threads. Use the FluidLoc cable only when absolutely necessary for your application. The 173688-01-20-12-05 requires a compatible 3300 XL Proximitor sensor for operation. Follow all hazardous area wiring methods per the agency approvals.

Package Contents

Your shipment includes the following items:

• 1 x Bently Nevada 173688-01-20-12-05 3300 XL 8 mm proximity probe

• 1 x Installation instruction sheet with torque specifications

• 2 x Replacement Viton O-rings for pressure seal maintenance

• 1 x ClickLoc connector dust cap for protection when disconnected

• 1 x Hazardous area approval documentation package

No extension cable or Proximitor sensor is included with this probe. Therefore, you must order these separately based on your system requirements.

Frequently Asked Questions (FAQ)

1. Is the FluidLoc cable necessary for this probe?
The Bently Nevada 173688-01-20-12-05 includes FluidLoc cable as ordered. However, this option is not necessary for most 3300 XL 8 mm installations due to the probe sleeve.

2. What approvals does the 05 option include?
The 05 approval option on the 173688-01-20-12-05 includes CSA, ATEX, and IECEx certifications. These cover hazardous area installations worldwide.

3. What is the total system length of this probe?
The Bently Nevada 173688-01-20-12-05 has a system length of 2.0 meters (6.6 feet). This includes the probe and integrated cable.

4. What thread type does this probe use?
The 173688-01-20-12-05 features 1/2-14 NPT mounting threads. This standard industrial thread suits many machine mounting ports.

5. Are these probes pressure tested before shipment?
No. Probes like the Bently Nevada 173688-01-20-12-05 are not pressure tested prior to shipment. Contact the custom design department if you require pressure seal testing.

Why Choose the Bently Nevada 173688-01-20-12-05?

This 3300 XL 8 mm proximity probe delivers reliable non-contacting measurement for critical machinery. For starters, the Bently Nevada 173688-01-20-12-05 features 1/2-14 NPT threads for standard industrial mounting. The 0.1 inch unthreaded length and 2.0 inch overall case length suit typical probe mounting holes. System length of 2.0 meters provides flexible placement of the Proximitor sensor. The FluidLoc cable option prevents oil leaks when your application requires enhanced sealing. However, note that this option is not necessary for most installations. Agency approval option 05 includes CSA, ATEX, and IECEx certifications for worldwide hazardous area use. The ClickLoc connector locks firmly to prevent vibration loosening. Furthermore, the Viton O-ring provides reliable differential pressure sealing. Most importantly, the 173688-01-20-12-05 is made in the USA with genuine Bently Nevada quality.

Order the Bently Nevada 173688-01-20-12-05 today for your 8 mm proximity probe needs. This probe is perfect for steam turbines, gas turbines, compressors, pumps, and other rotating machinery requiring hazardous area approvals and reliable vibration monitoring.