PROXPAC XL Proximity Transducer | 330881-BR-04-150-06-02 | Bently Nevada

Technical Specifications

The 330881-BR-04-150-06-02 is a PROXPAC XL Proximity Transducer manufactured by Bently Nevada. It is used for non-contact measurement of shaft vibration, axial displacement, and speed/key phase in large industrial rotating machinery. It is ideal for installation in harsh outdoor industrial environments with moisture, corrosive gases, and high acidity/alkalinity.

In advanced protection systems for compressors or turbines, 150 mm sensors are typically mounted in pairs to generate dynamic orbit maps in the control room. Regarding orientation and sensitivity, both 150 mm sensors must be perfectly perpendicular to the shaft centerline. If installed at an angle, the measured dynamic vibration amplitude will be proportionally reduced.

Polarity and Phase Synchronization: Because the integrated 3300 XL preamplifier has a negative voltage output, when configuring a 3500 system, it is essential to ensure that the orientation angle definitions of the X-axis and Y-axis sensors perfectly match the actual physical installation in the field.

Selection Fine-tuning to Prevent Errors

Absolutely prohibit using 155 mm instead of 150 mm: If the hole depth originally machined on-site is 150 mm, exactly reaching the shaft surface, and a 155 mm component is mistakenly installed, the extra 5 mm will cause the 8 mm ceramic head at the end of the sleeve to shatter directly onto the shaft during mechanical locking.

Identification Method for Blurred Nameplate Markings: If the suffix markings on the old sensor surface are unclear due to oil corrosion, use calipers or a steel tape measure to directly measure the net length of the stainless steel sleeve at the bottom of the housing assembly. If the net measured length is exactly 15.0 cm, then the spare part code can be 100% confirmed to be -150.

Technical FAQ

Q: What cable exit configuration does the "-06" option in model number 330881-BR-04-150-06-02 indicate?
A: It indicates a side exit configuration and includes a field wiring assembly with a stainless steel armored protective sleeve.

Q: What mounting thread specification does the suffix "-02" in 330881-BR-04-150-06-02 refer to?
A: It indicates that the process thread for connecting the integrated housing and the device is a standard 3/4-14 NPT American standard tapered pipe thread.

Q: What is the standard dynamic voltage sensitivity of this 330881-BR-04-150-06-02 integrated sensor?
A: Its nominal output sensitivity is 7.87 V/mm, equivalent to an output voltage change of 200 mV per thousandth of a gap, commonly used in industrial applications.

Q: What is the standard dynamic voltage sensitivity of this 330881-BR-04-150-06-02 integrated sensor?
A: Its nominal output sensitivity is 7.87 V/mm, equivalent to an output voltage change of 200 mV for every thousandth of a gap. It is commonly used in industrial applications.

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.

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