330174-00-09-10-02-CN Bently Nevada 5mm Probe M8 Armored

Product Overview: 330174-00-09-10-02-CN

As an engineering consultant, I often see vibration monitoring systems fail due to inadequate probe selection. The Bently Nevada 330174-00-09-10-02-CN is a 3300 series 5mm probe with M8 x 1 thread and armor, designed for precise, reliable displacement measurement in turbine and compressor applications. Its stainless steel case and PPS tip ensure durability, while the armored cable protects against mechanical damage. This probe is a critical component for API 670 compliant machinery protection systems.

Key Features & Technical Specifications

• Input Voltage: Requires -17.5 Vdc to -26 Vdc at 12 mA maximum.
• Output Resistance: 50 Ω for accurate signal transmission.
• Isolation: Not specified; refer to official datasheet.
• Probe DC Resistance: 7.59 ± 0.50 Ω from center to outer conductor.
• Total Length: 1.0 metre (3.3 feet) with 90 mm case length.
• Connector: Miniature coaxial ClickLoc, standard cable.
• Temperature Range: -35°C to +177°C (-31°F to +351°F).
• Weight: 0.323 kg.

Each specification is verified to ensure engineering-grade accuracy in every part.

Installation & Setup

Proper installation is critical for optimal performance. First, verify the target material is AISI 4140 steel for calibrated response. Then, set the gap to 1.27 mm (50 mils) using a feeler gauge. Next, torque the M8 x 1 thread to 5.1 N·m (45 in·lb) recommended, with a maximum of 7.3 N·m (65 in·lb). Also, observe the minimum cable bend radius of 25.4 mm (1.0 in) to prevent damage. Finally, connect the miniature coaxial ClickLoc connector to the extension cable, ensuring a secure fit.

Applications & Use Cases

This probe excels in critical turbomachinery monitoring. For instance, in steam turbine axial displacement measurement, it provides precise data for thrust bearing protection. Additionally, it is used in centrifugal compressor radial vibration monitoring to detect imbalance or misalignment. Furthermore, in gas turbine applications, the armored cable withstands high temperatures and mechanical stress. Therefore, when specifying a probe for harsh environments, the 330174-00-09-10-02-CN offers verified reliability.

Maintenance & Reliability

To ensure long-term reliability, inspect the probe periodically for physical damage or wear. Check the cable armor for cuts or abrasions. Also, verify the gap voltage remains within the linear range. Since the probe operates in extreme temperatures, avoid exposure below -34°C (-30°F) to prevent pressure seal failure. With proper care, this probe delivers years of accurate service, reducing downtime and maintenance costs.