Product Overview
When monitoring critical rotating machinery, reliable vibration measurement is essential to prevent unplanned downtime. The Bently Nevada 146055-90-02-00 Option: 0 2= is a 3300 ceramic capped reverse mount probe engineered for precise displacement sensing in harsh industrial environments. This probe uses a 3/8-24 UNF thread design and includes a Miniature ClickLoc coaxial connector with standard cable, ensuring secure signal transmission.
Technical Specifications Breakdown
Probe Thread and Length
- Probe Case Thread: 3/8-24
- Maximum Length of Thread Engagement: 0.563 in
- Total Length Option: -90 = 9.0 meters (29.5 feet)
Electrical Characteristics
- Probe Nominal DC Resistance: 9.87 ± 0.90 ohms (measured from center conductor to outer conductor)
- Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) ±6.5% including interchangeability error over the 60 mil linear range from 0°C to +45°C (+32°F to +113°F)
Linear Range
- Linear Range: 1.52 mm (60 mils), beginning at approximately 0.25 mm (10 mils) from target, from 0.25 to 1.78 mm (10 to 70 mils) (approximately –4 to –16 Vdc)
Mechanical and Environmental
- Probe Tip Material: Alumina ceramic (Al2O3)
- Probe Case Material: AISI 304 stainless steel
- Probe Temperature Range: -51°C to +177°C (-60°F to +351°F) operating and storage
- Probe Pressure Rating: Sealed to 34 Bar (500 psi) nitrogen
Industry Applications
Turbomachinery Monitoring
In steam turbines and gas compressors, the 146055-90-02-00 provides reliable shaft displacement measurements. Its ceramic tip and stainless steel case withstand high temperatures and pressures typical in power generation.
Pump and Motor Protection
For large pumps and motors, this probe offers consistent linear output over its 1.52 mm range, enabling early detection of bearing wear or misalignment. The 9-meter cable length simplifies installation in remote or confined locations.
Installation & Setup Guidance
Mount the probe using the 3/8-24 UNF threads into a compatible mounting hole. Ensure the probe tip is positioned within the linear range (0.25 to 1.78 mm from the target). Use the Miniature ClickLoc connector to attach the extension cable securely. For best results, calibrate the system with an AISI 4140 steel target as specified.
Maintenance & Reliability
Inspect the probe cable and connector periodically for signs of wear or damage. The FEP-insulated coaxial cable resists chemicals and high temperatures, reducing replacement frequency. Operating within the rated temperature range (-51°C to +177°C) ensures long-term stability.
Selection Guide & Purchasing Advice
Before ordering, confirm that the 146055-90-02-00 matches your required thread size (3/8-24 UNF) and cable length (9 meters). Verify compatibility with your existing 3300 XL system components. SpareTechPLC stocks this probe as new and original in factory packing with a 12-month warranty.
Please verify current lifecycle status and availability with SpareTechPLC before ordering.
Frequently Asked Questions
Q: What is the maximum thread engagement for the 146055-90-02-00?
A: The maximum length of thread engagement is 0.563 inches.
Q: What is the probe tip material?
A: The probe tip is made of alumina ceramic (Al2O3).
Q: What is the operating temperature range for this probe?
A: The operating and storage temperature range is -51°C to +177°C (-60°F to +351°F).
Q: What connector type does the 146055-90-02-00 use?
A: It uses a Miniature ClickLoc coaxial connector with standard cable.
Q: What is the nominal DC resistance of the probe?
A: The nominal DC resistance is 9.87 ± 0.90 ohms from center conductor to outer conductor.
