Bently Nevada 330191-00-56-10-00 3300 XL ETR Probe

Bently Nevada 330191-00-56-10-00 3300 XL 8mm ETR Probe

Product Introduction

The Bently Nevada 330191-00-56-10-00 is a high-performance extended temperature range proximity probe from the 3300 XL series. This sensor uses eddy current technology to measure vibration and position without contacting the target surface. Specifically, it features a 3/8-24 UNF thread and a 5.6-inch overall case length. The probe includes a 1.0-meter cable and does not require an extension cable for operation. Its robust construction makes it suitable for critical machinery monitoring in power generation, oil and gas, and heavy industry applications. Furthermore, the 3300 XL 8mm ETR Probe offers enhanced durability and temperature resistance.

Technical Specifications

The Bently Nevada 330191-00-56-10-00 delivers precise electrical performance. First, the total length option "10" specifies a 1.0-meter (3.3 feet) cable. Second, the unthreaded length option is set to a minimum of 0.0 inches. Third, the overall case length option "56" indicates a case length of 5.6 inches. Additionally, the agency approval option "00" means no specific hazardous area certification is required. The probe tip is molded from Polyphenylene sulfide (PPS). This material provides excellent chemical resistance and mechanical strength. Meanwhile, the probe case is machined from AISI 303 or 304 stainless steel (SST). These materials ensure long-term durability in harsh environments.

The nominal probe DC resistance from the center conductor to the outer conductor is 7.59 ± 0.50 Ω for this 1.0-meter model. This tight tolerance ensures consistent signal transmission. Moreover, the power requirement is -17.5 Vdc to -26 Vdc when installed with a non-incendive circuit per drawing 140979. Maximum consumption is 12 mA. Supply sensitivity is less than 2 mV change in output voltage per volt change in input voltage. The output resistance is 50 Ω. Therefore, these electrical parameters guarantee stable and accurate measurements.

Design Innovations

The 3300 XL 8mm ETR Probe incorporates several patented design improvements. For instance, the TipLoc molding method creates a more robust bond between the probe tip and the probe body. This significantly reduces the risk of tip separation. Additionally, the cable features a patented CableLoc design. This provides 330 N (75 lbf) pull strength to securely attach the probe cable and probe tip. Furthermore, an optional FluidLoc cable option is available. This prevents oil and other liquids from leaking out of the machine through the cable's interior. The 8mm probe design offers a thicker encapsulation of the probe coil in molded PPS plastic. Consequently, this results in a more rugged probe. The larger diameter also provides a stronger, more robust case. Therefore, we recommend using 8 mm probes when possible for optimal robustness against physical abuse.

Cable and Connector Specifications

This probe comes with a standard 75Ω triaxial cable insulated with fluoroethylene propylene (FEP). This cable is suitable for a wide range of operating temperatures. The connector is made of gold-plated brass or gold-plated beryllium copper. This ensures excellent conductivity and corrosion resistance. Meanwhile, the maximum connector torque is 0.565 N•m (5 in•lbf). The probe case thread is 3/8-24 with a maximum thread engagement length of 0.563 inches. The probe weighs approximately 323 grams per meter (11.4 oz/m). Therefore, these specifications ensure compatibility with standard mounting hardware and extension cables.

Temperature and Environmental Performance

The extended temperature range (ETR) design of the 330191-00-56-10-00 allows operation in extreme conditions. Specifically, the probe tip can withstand temperatures from -52°C to +218°C (-62°F to +425°F). Meanwhile, the cable and connector operate from -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. The probe is designed to seal differential pressure between the tip and case using a Viton® O-ring. Although not pressure tested before shipment, custom testing is available upon request. Furthermore, humidity resistance is also excellent, with less than a 3% change in Average Scale Factor (ASF) after 56 days at 93% humidity per IEC standard 68 2 3.

Temperature Classification Schedule

The temperature classification varies based on ambient conditions. For EPL Ga and Gc, the classifications are: T1 (-55°C to +232°C), T2 (-55°C to +177°C), T3 (-55°C to +120°C), T4 (-55°C to +80°C), and T5 (-55°C to +40°C). For EPL Dc, the ratings include T280°C at Ta -55°C to +232°C, T225°C at Ta -55°C to +177°C, and T170°C at Ta -55°C to +120°C, among others. Therefore, these classifications are important for selecting the correct probe for your specific environment.

Installation Guidance

Proper installation is crucial for the Bently Nevada 330191-00-56-10-00. First, prepare the mounting hole with the correct 3/8-24 UNF thread. Ensure the target surface is clean and meets the required specifications. Then, thread the probe into the mounting hole, but do not exceed the maximum thread engagement of 0.563 inches. Because this is a 1.0-meter system, it does not use an extension cable. Connect the probe directly to the proximitor or monitoring system using the coaxial connector. Apply the recommended torque of 0.565 N•m (5 in•lbf) to the connector. Meanwhile, route the cable carefully to avoid sharp bends and high-temperature surfaces. Finally, adjust the probe gap according to your system calibration requirements.

Packaging List

Your order for the Bently Nevada 330191-00-56-10-00 will include:

• One (1) 3300 XL 8mm ETR probe assembly with 1.0-meter cable

• Pre-installed Viton® O-ring seal on the probe

• Protective anti-static packaging

• Quick-start installation guide

Shipping Information

We ship all orders using premium international carriers. The shipping methods are FedEx, UPS, and DHL. We select the most efficient option based on your location. Delivery typically takes 3 to 7 business days. You will receive tracking information once your order is dispatched.

Frequently Asked Questions (FAQ)

1. What does ETR mean on the Bently Nevada 330191-00-56-10-00?
ETR stands for Extended Temperature Range. This probe can operate at tip temperatures up to +218°C, making it suitable for high-temperature applications such as turbine monitoring.

2. Is the Bently Nevada 330191-00-56-10-00 compatible with extension cables?
No, this is a 1.0-meter system and does not require an extension cable. It connects directly to the proximitor or monitoring system.

3. What is the advantage of the TipLoc molding method?
The TipLoc method creates a stronger bond between the probe tip and body. This reduces the risk of tip separation due to vibration or thermal stress, improving probe reliability.

4. Can I use this probe in a hazardous area?
This specific model has the "00" agency approval option, meaning no hazardous area certification is included. For hazardous area use, you would need a probe with the appropriate approval option.

5. How do I clean the probe tip before installation?
Use a soft, lint-free cloth with isopropyl alcohol. Gently wipe the PPS tip to remove any contaminants. Allow it to dry completely before mounting. Avoid using abrasive materials that could damage the tip surface.