Bently Nevada 330105-02-12-90-02-CN Reverse Mount Probe

Bently Nevada 330105-02-12-90-02-CN Reverse Mount Probe

Product Introduction

The Bently Nevada 330105-02-12-90-02-CN is a high-performance reverse mount probe from the trusted 3300 XL series. This sensor uses eddy current technology to measure vibration and position without contacting the target surface. It is a crucial component for predictive maintenance and protection monitoring systems. Specifically, this model is designed with a 9.0-meter total length and a Miniature ClickLoc coaxial connector. Its rugged construction and reliable output make it suitable for demanding industrial environments like turbines, compressors, and pumps. The 3300 XL 8mm Reverse Mount Probe is built to deliver consistent, accurate data for machine health analysis.

Technical Specifications

The Bently Nevada 330105-02-12-90-02-CN is defined by its precise electrical and physical parameters. The total length option "-90" specifies a 9.0-meter (29.5 feet) cable. Its connector option, "-02," confirms the use of a Miniature ClickLoc coaxial connector. This connector ensures a secure, reliable connection. Furthermore, the agency approval option "CN" indicates it meets specific country standard certifications.

The probe's DC resistance is a key performance indicator. For this 9.0-meter model, the nominal probe DC resistance (RPROBE) from the center conductor to the outer conductor is 9.87 ± 0.50 Ω. This tight tolerance guarantees signal integrity. Additionally, the probe case thread is 3/8-24 with a maximum thread engagement length of 0.563 inches. The probe itself weighs approximately 323 grams per meter (11.4 oz/m). These specifications ensure compatibility with standard mounting hardware.

Environmental and Mechanical Parameters

This sensor operates reliably across a wide range of conditions. The standard probe temperature range is from -52°C to +177°C (-62°F to +350°F). For more extreme environments, an extended temperature range version is available. This version supports up to +218°C (+425°F) at the probe tip. Meanwhile, its cable and connector can withstand up to +260°C (+500°F). However, keep in mind that exposing the probe to temperatures below –34˚C (-30˚F) may cause premature failure of the pressure seal.

Pressure handling is also a notable feature. The 3300 XL 8 mm probes are designed to seal differential pressure between the probe tip and the case. The sealing material is a robust Viton® O-ring. Moreover, the probe shows excellent humidity resistance. It exhibits less than a 3% change in Average Scale Factor (ASF) when tested in 93% humidity per IEC standard 68 2 3 for up to 56 days.

Hazardous Area Approvals

The Bently Nevada 330105-02-12-90-02-CN is certified for use in hazardous locations. When installed with intrinsically safe zener barriers (per drawing 141092) or galvanic isolators, it meets the requirements for Class I, Zone 0: AEx/Ex ia IIC T5…T1 Ga. It is also suitable for Class 1, Groups A, B, C, and D, as well as Class II and III groups.

Alternatively, when installed with a non-incendive circuit (per drawing 140979), it is approved for Class I, Zone 2: AEx/Ex nA IIC T5…T1 Gc. This flexibility makes the 330105-02-12-90-02-CN adaptable to various safety requirements. Therefore, users can confidently deploy this probe in potentially explosive atmospheres.

Temperature Classification Schedule

• T1: -55°C to +232°C

• T2: -55°C to +177°C

• T3: -55°C to +120°C

• T4: -55°C to +80°C

• T5: -55°C to +40°C

Installation Guidance

Proper installation is crucial for optimal performance of the 3300 XL 8mm Reverse Mount Probe. First, ensure the target surface is clean and within the specified material and finish requirements. Next, thread the probe into the mounting hole using the 3/8-24 thread. Be careful not to overtighten, as the maximum thread engagement is 0.563 inches. Then, connect the Miniature ClickLoc coaxial connector to the extension cable. This connector provides a positive lock, preventing accidental disconnection.

Furthermore, always route the probe cable away from high-voltage sources and sharp edges. Use cable ties to secure the cable, but avoid excessive force. Additionally, ensure the probe tip is properly gapped according to your system's calibration requirements. For precise setup, refer to the Bently Nevada proximity system manual. Following these steps will ensure reliable and accurate vibration measurements.

Packaging List

Your order for the Bently Nevada 330105-02-12-90-02-CN will include the following items:

• One (1) 3300 XL 8mm reverse mount probe assembly with a 9.0-meter cable

• The probe is pre-fitted with a Viton® O-ring seal

• Anti-static packaging for safe transportation

• Installation instructions sheet (quick start guide)

Shipping Information

We ship all orders using premium international carriers. The shipping methods are FedEx, UPS, and DHL. We select the most efficient service based on your location. Delivery times typically range from 3 to 7 business days. Tracking information will be provided once your order is dispatched.

Frequently Asked Questions (FAQ)

1. Is the Bently Nevada 330105-02-12-90-02-CN compatible with older 3300 systems?
Yes, this probe is designed to be backward compatible with most existing 3300 proximity systems. However, always verify the total length and connector type. This specific model has a 9.0m length and a ClickLoc connector, so ensure your extension cable matches.

2. What is the main advantage of using a reverse mount probe?
Reverse mount probes offer easier installation and better protection for the cable. They are often used in tight spaces where standard probes are difficult to mount. The 330105-02-12-90-02-CN design allows for top access removal without disturbing the target.

3. Can I use this probe in a high-humidity environment?
Absolutely. The 3300 XL 8mm probe has been tested for up to 56 days at 93% relative humidity. This ensures a minimal change in performance. Therefore, it is well-suited for humid and corrosive environments.

4. What is the significance of the -90 option in the model number?
The -90 option specifies the total cable length. For this model, it indicates a 9.0-meter (29.5 feet) cable. This length is a common choice for extending the reach to the junction box.

5. How should I handle the probe to avoid damage?
Avoid bending the cable sharply. Also, never pull on the cable to disconnect it; always use the connector. Additionally, protect the probe tip from scratches or impacts. This ensures the Bently Nevada 330105-02-12-90-02-CN maintains its calibration and accuracy.