Bently Nevada 146055-90-02-00 Reverse Mount Probe

Bently Nevada 146055-90-02-00 | Ceramic Capped Reverse Mount Probe

Manufacturer: Bently Nevada | Part Number: 146055-90-02-00 | 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
• 00: Agency approval = Not required

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 Application Notes

• 9.0 meter cable: Allows proximitor mounting far from probe location
• System Length: Probe cable + extension cable = total system length
• RPROBE at 9.0m: 9.87 ± 0.90 Ohms (higher than shorter cables)
• Signal Integrity: Maintains performance over full 9.0m length

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

Agency Approval - None (00)

• Approval option 00: No hazardous location certifications
• Safe area use only: Not certified for explosive atmospheres
• Application: Non-hazardous industrial environments

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

• 146055-90-02-00 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 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: Why choose 9.0 meter cable length?
  A: Use 9.0m when your proximitor mounts far from the probe location. Total system length (probe cable + extension) must match proximitor calibration.
• Q: What is the resistance at 9.0 meters?
  A: RPROBE is 9.87 ± 0.90 Ohms. Compare to 0.5m probe at 7.45 Ohms - longer cable has higher resistance.
• Q: Can I use this probe with standard 3300 XL proximitors?
  A: Yes. Compatible with 3300 XL 8mm proximitor (model 330180-90-00).
• Q: Why no approvals on this model?
  A: Option 00 means no hazardous location certifications. Use only in safe (non-classified) areas. For hazardous locations, choose option 05 (multiple approvals).