3300 XL 11 mm Proximity Probes | 330704-00-50-10-01-05 | Bently Nevada

Technical Specifications

The Bently Nevada 3300 XL 11 mm Proximity Transducer System consists of: 3300 XL 11 mm probe, 3300 XL 11 mm extension cable, 3300 XL 11 mm Proximitor Sensor. The 3300 XL 11 mm Proximity Transducer System has a 3.94 V (100 mV/mil) output for non-contacting vibration and displacement measurements on fluid film bearing machines. The large 11 mm tip enables this transducer system to have a longer linear range compared to our standard 3300 XL 8 mm Transducer System.

Bracket Natural Resonance Frequency: The minimum natural resonance frequency of the cantilever bracket used to mount the probe must be greater than 10 times the unit's maximum operating speed. For example, if the rotor speed is 3000 rpm, the bracket's resonant frequency must be greater than 500 Hz. If the bracket stiffness is insufficient, the casing vibration during unit operation will cause the bracket to resonate, thus superimposing a false "high-frequency vibration" on the displacement signal, leading to a false alarm in the 3500 system.

Material Selection: Low-strength aluminum or ordinary easily rusting carbon steel must not be used for the internal bracket. The official recommendation is to use AISI 304 or 316 stainless steel with a thickness of not less than 12 mm.

Dynamic Response Frequency and Temperature Step Characteristics

Frequency Response Range: 0 Hz to 10 kHz. Its output dynamic signal attenuation is less than 3 dB. Therefore, it can not only measure slow expansion differences but also perfectly capture high-speed, high-frequency collisions and oscillations of the rotor on the thrust bearings.

Temperature Drift Coefficient: Within the full temperature range of -52°C to +177°C, thanks to the patented temperature compensation coil, its maximum linear temperature drift is controlled within ±0.005 mm/°C.

Technical FAQ

Q: What is the material of the factory standard calibration target for measurement 330704-00-50-10-01-05?
A: The standard calibration target is AISI 4140 steel. If other non-standard materials are used on-site, recalibration is required.

Q: What is the strictly controlled total electrical length of the entire system loop for 330704-00-50-10-01-05?
A: To ensure measurement accuracy and impedance matching, the total loop length must be locked at 5 meters or 9 meters.

Q: Is the 330704-00-50-10-01-05 electrically compatible and interchangeable with the older 7200 series 11mm probe?
A: No, they are not directly interchangeable because the impedance and electrical linearity characteristics of the 3300 XL preamplifier differ from the older series.

Q: What is the main field safety function of the stainless steel flexible armor layer included with the 330704-00-50-10-01-05?
A: The armor layer primarily provides strong physical protection for the internal coaxial cable against mechanical crushing, trampling, and tearing by sharp objects.

Q: Can the 330704-00-50-10-01-05 be extended to a standard 9-meter system by adding an extension cable?
A: Yes, it comes with a 1-meter extension cable; simply connect an additional 8-meter extension cable from the same series in series.

Q: Are your products brand new?
A: Yes. We only supply 100% original and brand-new products. All items are sourced through authorized channels and have never been used or refurbished.

Q: Why can customers buy with confidence?
A: Because every product is backed by our 1-Year Warranty Guarantee of Quality, ensuring reliability, customer satisfaction, and long-term support after delivery.

Q: Do you provide international shipping?
A: Yes. We ship products to customers worldwide using reliable international logistics services such as EMS, DHL, UPS, and FedEx.

Trusted by 5,000+ plants worldwide |  Contact for more Bently Nevada spares: sales1@amikon.cn

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