Introduction
The 81545-01 is a specialized, high-performance coaxial cable assembly designed to connect Bently Nevada's eddy current proximity probes (such as the 3300 XL series) to their corresponding proximity transducer (proximitor) or monitoring system. This cable is not a standard coaxial cable; it is engineered for precise signal integrity, shielding against electromagnetic interference, and durability in harsh industrial environments. Its primary function is to transmit the high-frequency oscillator signal from the proximitor to the probe and to return the precise gap measurement signal without degradation, ensuring accurate and reliable measurement of shaft position, vibration, and speed.
Technical Parameters
The following table summarizes the key technical specifications for the model 81545-01.
| Parameter Category | Specification Details |
|---|---|
| Model Number | 81545-01 |
| Product Type | Proximitor® Coaxial Cable Assembly |
| Compatibility | Bently Nevada 3300/7200/3500 XL 8mm & 11mm Proximity Probe Systems |
| Connector (Probe End) | SMI/M5 (Standard Microdot) connector, threaded for secure connection to the probe. |
| Connector (System End) | SMI/M5 connector or bare, tinned leads, depending on the specific -01 variant. |
| Cable Type | Double-shielded, low-noise coaxial cable. |
| Cable Length | Typically 1 meter (3.28 ft), 5 meters (16.4 ft), or 10 meters (32.8 ft). The "-01" suffix often specifies a standard length (e.g., 5m). |
| Insulation / Jacket | High-temperature, chemically resistant (e.g., FEP Teflon®) |
| Operating Temperature | -40°C to +150°C (-40°F to +302°F) or higher, depending on jacket material. |
| Impedance | Characteristic impedance matched to the probe system (typically 50-95 Ohms). |
| Shielding Effectiveness | High (≥ 90 dB) to prevent EMI/RFI noise from corrupting the sensitive measurement signal. |
| Certifications | Designed to meet industrial and often hazardous area requirements. |
| Dimensions (Cable OD) | Approx. 3.5 mm to 5.0 mm (diameter) |
| Weight | Approx. 0.2 - 0.4 kg per meter (depending on length and jacket) |
Critical Note: *The exact length and connector type at the system end are defined by the suffix in the part number. Using the incorrect cable type, length, or connectors can severely impact the system's calibration and measurement accuracy. Always verify the exact requirements of your probe and monitor (e.g., 3300, 3500) and cross-reference this part number with the official Bently Nevada cable datasheet.*
Application Scenarios
This cable is an essential component anywhere a Bently Nevada proximity probe system is installed for machinery protection.
Shaft Vibration and Position Monitoring:
Connecting 8mm or 11mm proximity probes to a proximitor module (like a 3300/01 or 3500/42) on turbines, compressors, and generators to measure radial vibration and axial position.
Keyphasor® Reference Signals:
Used as the cable for Keyphasor® probes to provide a once-per-revolution timing signal essential for vibration phase analysis and speed measurement.
System Retrofits and Repairs:
Used to replace damaged or degraded cables in existing installations to restore signal integrity and system accuracy.
New Machinery Installation:
A critical part of the installation kit for new monitoring points on critical rotating equipment across industries like Oil & Gas, Power Generation, and Petrochemicals. The robust jacket ensures long-term reliability in hot, oily, and corrosive environments.
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
Your trust is the driving force for our continuous progress, submit your requirements immediately to get exclusive quotes
