3300 Ceramic Reverse Probe 146055-90-02-05 Bently Nevada

Bently Nevada 146055-90-02-05 | Ceramic Capped Reverse Mount Probe

Manufacturer: Bently Nevada | Part Number: 146055-90-02-05 | Type: 3300 Ceramic Capped Reverse Mount Probe | Thread: 3/8-24 UNF | Made in: U.S.A.

Model Number Breakdown

• 146055: 3300 Ceramic Capped Reverse Mount Probe, 3/8-24 UNF thread
• 90: Total cable length = 9.0 meters (29.5 feet)
• 02: Miniature ClickLoc coaxial connector, standard cable
• 05: Agency approval = Multiple Approvals (CSA/ATEX/IECEx)

Key Specifications

• Cable Length: 9.0 meters (29.5 feet)
• Thread Size: 3/8-24 UNF
• Maximum Thread Engagement: 0.563 inch
• RPROBE at 9.0m: 9.87 ± 0.90 Ohms
• Linear Range: 1.52 mm (60 mils) from 0.25mm to 1.78mm
• Voltage Range: -4 to -16 Vdc over linear range
• Incremental Scale Factor: 7.87 V/mm (200 mV/mil) ±6.5%

Reverse Mount Design

• Reverse Mount: Probe mounts from inside the machine casing outward
• Typical Application: Thrust position measurement, limited access areas
• Case Length: Fixed design (threads run to tip)
• Tip Material: Alumina ceramic (Al2O3) for wear resistance
• Case Material: AISI 304 stainless steel
• Cable Type: 75 Ω coaxial, FEP insulated standard cable

Long Cable Features

• 9.0 meter length: Maximum standard cable length for reverse mount probes
• RPROBE at 9.0m: 9.87 Ohms (highest among reverse mount probes)
• Ideal for: Proximitor mounted far from probe location
• System Length: Use with 9m Proximitor Sensor for matched system

Agency Approval - Multiple Approvals (05)

• CSA: Certified for North American hazardous locations
• ATEX: Approved for European explosive atmospheres
• IECEx: International certification for worldwide use
• Application: Refineries, chemical plants, gas pipelines, offshore platforms

Temperature Ratings

• Operating & Storage: -51°C to +177°C (-60°F to +351°F)
• Temperature Class T1: -55°C to +232°C (EPL Ga/Gc)
• Temperature Class T2: -55°C to +177°C
• Temperature Class T3: -55°C to +120°C
• Temperature Class T4: -55°C to +80°C
• Temperature Class T5: -55°C to +40°C

Pressure Rating

• Standard Pressure: 34 Bar (500 psi) nitrogen seal
• Higher Pressure: Modifications available
• Custom Testing: Contact design department for pressure seal testing

System Notes

• Specifications apply to 3300 XL systems with -24 Vdc supply and AISI 4140 steel target
• System accuracy and interchangeability do not apply with other target materials
• Performance measured at +18°C to +27°C (+64°F to +80°F)

Package Contents

• 146055-90-02-05 ceramic capped reverse mount probe with 9.0m cable
• ClickLoc connector (standard cable)
• Calibration certificate
• Installation instructions

Shipping Information

• Weight: Approximately 0.8 kg (1.76 lb)
• Packaging: Protective box
• Carriers: FedEx, UPS, DHL (2-5 business days)

Frequently Asked Questions

• Q: What approvals does option 05 include?
  A: Multiple Approvals include CSA (North America), ATEX (Europe), and IECEx (international) for global hazardous location use. Suitable for Class I, Zone 0, Zone 2, and Division 2 areas.
• Q: What is the resistance at 9.0 meters?
  A: RPROBE is 9.87 ± 0.90 Ohms. This is the highest resistance among reverse mount probes due to the long cable length.
• Q: What is a reverse mount probe?
  A: Reverse mount probes install from inside the machine casing outward. Use for thrust position measurement, limited access areas, or when standard outside mounting is not possible.
• Q: Can I use this probe with 5m Proximitor?
  A: No. This 9.0m probe is designed for use with 9m Proximitor Sensor only. Using with 5m proximitor will cause measurement errors. Check your proximitor calibration label.
• Q: What is the advantage of ceramic tip for long cable probes?
  A: Alumina ceramic tip provides exceptional wear resistance and stable dielectric properties over long distances. It maintains signal integrity better than standard tips in abrasive environments.