330106-05-30-20-02-CN Bently Nevada 2m Proximity Probe

Bently Nevada 330106-05-30-20-02-CN 3300 XL 8 mm Reverse Mount Probe

Product Introduction

The 330106-05-30-20-02-CN from Bently Nevada belongs to the 3300 XL series of proximity probes. This 8 mm reverse mount probe measures vibration and position on rotating machinery. You can install it in tight spaces where standard probes do not fit.

The reverse mount design places the connector at the probe tip end. This configuration works well for applications with limited axial clearance. The 330106-05-30-20-02-CN uses M10x1 threads for secure mounting.

Additionally, this probe includes a country-specific agency approval option (CN). The total length is 2.0 meters or 6.6 feet. A Miniature ClickLoc coaxial connector provides reliable signal transmission.

Mechanical Specifications and Materials

The probe tip uses Polyphenylene sulfide (PPS) material. This thermoplastic offers excellent chemical resistance and dimensional stability. The probe case is made from AISI 303 or 304 stainless steel (SST). These materials provide good corrosion resistance for industrial environments.

Probe case threads are M10x1 with a maximum thread engagement length of 15 mm. The probe weight measures 323 g per meter (11.4 oz per foot). For the 2.0 meter length, the total probe weight is approximately 0.65 kg.

Tensile strength reaches 330 N (75 lbf) from probe case to probe lead. Furthermore, tensile strength at the probe lead to extension cable connectors is 270 N (60 lbf). The connector uses gold-plated brass or gold-plated beryllium copper for excellent signal integrity.

Electrical Specifications

The nominal probe DC resistance from center conductor to outer conductor is 7.88 ± 0.50 Ω for the 2.0 meter length. This low resistance maintains signal quality over the longer cable run. Compare this to the 0.5 meter version which measures 7.45 Ω.

The probe cable uses 75Ω triaxial construction. Standard cable insulation is fluoroethylene propylene (FEP). For extended temperature applications, perfluoroalkoxy (PFA) insulation is available.

Optional armor protection uses flexible AISI 302 or 304 SST with an FEP outer jacket. Armor adds mechanical protection in harsh installation environments where cable damage is a concern.

Temperature Ratings and Important Limitations

The standard probe operates from -52°C to +177°C (-62°F to +350°F). The extended temperature range probe handles higher temperatures. For extended range probes, the probe tip reaches -52°C to +218°C (-62°F to +425°F).

The extended range cable and connector handle -51°C to +260°C (-60°F to +500°F). However, exposing the probe to temperatures below -34°C (-30°F) may cause premature failure of the pressure seal. This is a critical consideration for cold environment installations.

Both operating and storage temperatures share the same ranges. Always verify your application temperatures before selecting a probe type.

Pressure and Humidity Ratings

The 330106-05-30-20-02-CN probe seals differential pressure between the probe tip and case. The sealing material consists of a Viton O-ring. This provides good chemical resistance and sealing performance.

Probes are not pressure tested prior to shipment. Contact the custom design department if your application requires pressure seal testing. This is particularly important for pressurized machine casings or hazardous fluid applications.

For humidity, the probe shows less than a 3% change in Average Scale Factor (ASF) when tested. Testing follows IEC standard 68-2-3 at 93% humidity for up to 56 days. This demonstrates excellent humidity stability for long-term installations.

Cable Options and Lengths

Standard cable lengths include 0.5, 1, 1.5, 2, 3, 5, or 9 meters. The 330106-05-30-20-02-CN specifically uses the 2.0 meter option (option code 20). Extended temperature range cable is available in the same lengths except 1.5 meters.

The cable uses triaxial construction for noise immunity. This is essential for reliable proximity probe measurements in electrically noisy environments. The 75Ω impedance matches standard Bently Nevada proximitor inputs.

For mechanical protection, flexible armor is optional on both standard and extended range cables. Armor adds durability for installations with abrasion or impact risks.

Installation Guidelines

First, clean the mounting surface and threads before installation. Next, apply anti-seize compound to the M10x1 threads if recommended for your application. Thread the probe into the mounting hole by hand to avoid cross-threading.

Then, tighten the probe to the specified torque for your mounting configuration. Do not exceed the maximum thread engagement of 15 mm. Ensure the probe tip gap falls within the specified range for your proximitor.

Finally, connect the Miniature ClickLoc connector to your extension cable. Secure the 2.0 meter cable away from moving parts and high-temperature surfaces. Verify the probe extends properly into the machine casing.

Packaging List

• 1 x 330106-05-30-20-02-CN 3300 XL 8 mm reverse mount probe assembly

• 1 x 2.0 meter triaxial probe cable with Miniature ClickLoc connector

• 1 x Viton O-ring pressure seal (pre-installed)

• 1 x Protective cap for probe tip during shipping

• 1 x Installation instruction sheet

Shipping via Fedex, UPS, or DHL

Frequently Asked Questions (FAQ)

1. How is the 330106-05-30-20-02-CN different from the 0.5 meter version?
The main difference is the total length. The 330106-05-30-20-02-CN has a 2.0 meter cable versus 0.5 meters. The DC resistance is also slightly different at 7.88 Ω compared to 7.45 Ω for the shorter version.

2. Can I use this probe in high-temperature applications?
The standard probe operates up to 177°C (350°F). For higher temperatures up to 218°C (425°F), select an extended temperature range probe. Note that temperatures below -34°C (-30°F) may damage the pressure seal.

3. What thread size does this reverse mount probe use?
The 330106-05-30-20-02-CN uses M10x1 threads. The maximum thread engagement length is 15 mm. Always verify your mounting hole matches these specifications before installation.

4. Is the probe pressure tested before shipment?
No, standard probes are not pressure tested prior to shipment. Contact the custom design department if your application requires pressure seal testing. The probe uses a Viton O-ring for differential pressure sealing.

5. What is the nominal DC resistance of the 2.0 meter probe?
For the 2.0 meter length, the nominal DC resistance (RPROBE) is 7.88 ± 0.50 Ω from center conductor to outer conductor. This low resistance ensures accurate signal transmission to your proximitor.