Bently Nevada 330708-00-10-90-01-05 Proximity Probe

Product Introduction

The Bently Nevada 330708-00-10-90-01-05 represents a fully certified, long-cable variant of the industry-standard 3300 XL series proximity probes. Specifically, this model provides an 11 mm sensing diameter with a 5/8-18 UNF thread and comes without armor. The defining characteristics include a 9.0-meter (29.5 feet) total cable length and the "05" agency approval option, which confirms Multiple Approvals for international regulatory compliance. Consequently, this 3300 XL 11 mm probe is ideally suited for global projects requiring certified instrumentation in large machinery installations. The extended cable enables remote mounting of monitoring electronics, while the comprehensive approvals simplify deployment across various jurisdictions.

Technical Specifications

This section covers the essential technical parameters of the Bently Nevada 330708-00-10-90-01-05. First, the probe tip is constructed from polyphenylene sulfide (PPS), delivering excellent dimensional stability and broad chemical resistance. Meanwhile, the probe case uses AISI 304 stainless steel (SST), providing superior corrosion resistance and mechanical robustness. The probe cable is a 75 Ω triaxial type with fluoroethylene propylene (FEP) insulation, safeguarding signal integrity over the full 9.0-meter run. Additionally, the 330708-00-10-90-01-05 includes the 9.0-meter (29.5 feet) cable length, making it suitable for deep installations or large rotating equipment. For electrical performance, the DC resistance from the center conductor to the outer conductor (RPROBE) measures 8.5 ± 1.1 ohms. The agency approval option "05" confirms Multiple Approvals, including ATEX, CSA, and FM certifications for global use.

Multiple Approvals for Global Compliance

The "05" agency approval option on this model delivers significant value for international projects. Essentially, these Multiple Approvals cover major regulatory standards, including ATEX for Europe, CSA for Canada, and FM for the United States. Consequently, engineering teams can deploy this 3300 XL probe across different facilities without requalifying the instrumentation. Specifically, these certifications validate the probe's suitability for hazardous area installations where intrinsic safety is paramount. Furthermore, the approvals are clearly documented on the product labeling, simplifying inspection and audit processes. Therefore, the 330708-00-10-90-01-05 eliminates the compliance burden typically associated with global equipment procurement.

Long-Cable Performance Characteristics

The extended 9.0-meter cable introduces specific performance parameters worth understanding. Essentially, the DC resistance increases proportionally with cable length, measuring 8.5 ± 1.1 ohms compared to shorter variants. Consequently, the system electronics must accommodate this slightly higher resistance, which the 3300 XL drivers are engineered to handle. Specifically, the 75 Ω triaxial FEP construction maintains excellent signal-to-noise ratio even at this extended length. Furthermore, the FEP insulation provides outstanding dielectric properties, minimizing signal attenuation over the full 9.0 meters. Therefore, the Bently Nevada 330708-00-10-90-01-05 delivers consistent, reliable measurements regardless of the installation distance.

Mechanical and Environmental Parameters

The mechanical specifications ensure dependable operation across diverse conditions. For instance, the 5/8-18 UNF probe case thread has a maximum length of thread engagement of 0.938 inches. When installing, the recommended torque for the probe case is 15.2 N•m (133 in•lb), while the maximum rated torque is 45.2 N•m (400 in•lb). Furthermore, the connector-to-connector torque should be finger tight, with a maximum of 0.565 N•m (5 in•lb). The minimum bend radius for the cable is 25.4 mm (1.0 inch), applicable with or without SST armor. Regarding environmental resilience, the operating and storage temperature range spans -51°C to +177°C (-60°F to +351°F). However, exposing this probe to temperatures below -34°C (30°F) may cause premature failure of the pressure seal. Additionally, the probe incorporates a Viton O-ring to seal differential pressure between the tip and the case.

Installation Guidelines for Certified Long-Cable Models

Proper installation of the Bently Nevada 330708-00-10-90-01-05 requires attention to both mechanical and regulatory considerations. Initially, verify the thread engagement does not exceed 0.938 inches for the 5/8-18 UNF thread. Next, carefully route the 9.0-meter FEP cable while maintaining a bend radius above 25.4 mm to prevent cable damage or signal degradation. Specifically, plan the cable path to avoid sharp bends, pinch points, or contact with moving components. When tightening the probe case, apply the recommended torque of 15.2 N•m to avoid mechanical stress. Additionally, tighten the ClickLoc connector to finger tightness plus the specified maximum torque. Meanwhile, protect the PPS probe tip from impact damage during handling. Since the probe is not pressure tested prior to shipment, contact the custom design department if your application requires a pressure seal test. For hazardous area installations, follow all applicable safety regulations regarding probe installation and wiring.

Packaging and Logistics

Every new Bently Nevada 330708-00-10-90-01-05 is shipped in durable packaging to prevent transit damage. For each order, the standard packaging includes one 3300 XL 11 mm probe assembly with the 9.0-meter cable as specified. The gross weight is only 0.17 kg, enabling cost-effective shipping options despite the longer cable. Furthermore, all orders are dispatched using premier global couriers such as Fedex, UPS, and DHL. Therefore, you can expect fast and fully trackable delivery to your facility worldwide. This streamlined logistics process minimizes operational downtime and facilitates quick installation of your certified monitoring system.

Frequently Asked Questions (FAQ)

1. What agency approvals are included with the "05" option?
The "05" option includes Multiple Approvals covering ATEX, CSA, and FM certifications for global hazardous area use.

2. How does the 9.0-meter cable affect electrical performance?
The DC resistance is 8.5 ± 1.1 ohms, which is within the 3300 XL system's specified range for reliable operation.

3. Is this probe suitable for use in explosive atmospheres?
Yes, with the "05" Multiple Approvals, it is certified for hazardous area installations per ATEX, CSA, and FM standards.

4. What is the recommended installation torque?
The recommended torque is 15.2 N•m (133 in•lb) for the probe case and finger tight for the connector.

5. Can I use this probe outdoors in cold climates?
Yes, it operates from -51°C to +177°C, but avoid prolonged exposure below -34°C to protect the Viton seal.