PROXPAC XL Proximity Transducer | 330881-BR-04-70-03-02 | Bently Nevada

Technical Specifications

The Bently Nevada 330881-BR-04-70-03-02 is a PROXPAC XL Proximity Transducer manufactured by Bently Nevada. It is used for non-contact monitoring of shaft vibration, axial displacement, and speed/key phase in critical rotating machinery such as steam turbines, compressors, and large fans.

Rigidity: Its flexural strength ensures that the bushing end will not experience physical displacement under lateral high-frequency vibration impacts up to 30 g. This completely eliminates false vibrations and false alarms caused by bushing deformation.

Burn-free Mounting Holes: When screwing into the machine mounting holes, ensure that there are no casting burrs or foreign object residues inside the 70 mm through-channel. Since this component integrates a precision preamplifier and probe circuit, excessive compression or twisting during screwing may slightly alter the internal inductance value.

03 Engineering Details for Electrical Interface Options

Cable Gland Compatibility: During field cabling, explosion-proof cable glands with M20 metric threads and INMETRO certification must be used. Forcing an American standard NPT gland in will instantly damage the metric threads of the engineering plastic or aluminum alloy housing, causing the IP66 seal of the fully enclosed housing to completely fail.

Multiple cable exit design flexibility: The PROXPAC XL housing features three cable exit holes. This option uses one M20 hole for cable routing, while the other two holes are securely sealed with original factory explosion-proof plugs.

Technical FAQ

Q: What mechanical depth does the number "-70" in model number 330881-BR-04-70-03-02 represent?
A: This indicates that after installing the component, the probe inserts into the machine housing to a depth of 70 mm.

Q: What type of connector accessory does the parameter "-03" in 330881-BR-04-70-03-02 represent?
A: This indicates an electrical accessory kit containing one M20 waterproof cable connector and two sealing plugs.

Q: What type of connection thread does the "-02" at the end of model number 330881-BR-04-70-03-02 represent?
A: It indicates that the process connection thread on the bottom of the integrated housing is a standard 3/4-14 NPT American standard tapered pipe thread.

Q: What is the maximum loop current consumption of 330881-BR-04-70-03-02 under full-scale dynamic operation?
A: Its maximum loop current consumption is fixed at 12 mA.

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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