PROXPAC XL Proximity Transducer | 330881-BR-04-145-06-02 | Bently Nevada

Technical Specifications

Bently Nevada 330881-BR-04-145-06-02 is a PROXPAC XL Proximity Transducer. It is used for mechanical condition monitoring and protection, and its main functions include radial vibration measurement, axial position/thrust displacement measurement, and speed and phase measurement.

Household Thermal Elongation Effect: When heated, the stainless steel bushing undergoes slight axial physical elongation. This causes the probe tip to be closer to the shaft surface than when cold, resulting in a drift in the DC bias voltage output by the monitoring system.

Overhaul Cold-Pegging Recommendation: During cold-pegging overhaul installation, it is recommended to adjust the bias voltage to approximately -9.5 Vdc. Once the unit bearing housing temperature reaches thermal equilibrium, bushing expansion will automatically bring the voltage back to the absolute linear center of -10.0 Vdc.

-BR Construction and Water Blocking Acceptance Standards

Explosion-proof Matching of Cable Glands: Explosion-proof clamping glands certified by INMETRO must be used for field outgoing lines. If the field cable is not armored, a double-seal explosion-proof gland must be used; if the cable is armored, a dedicated armored gland must be used to ensure 360-degree electrical grounding between the shield and the reducer.

The "entraining" effect is strictly prohibited: the bearing housing usually contains a slight positive pressure and a high concentration of oil and gas. When the outlet is connected to the explosion-proof conduit, an explosion-proof sealing sealant must be installed within 450 mm of the housing and explosion-proof putty must be poured.

Technical FAQ

Q: What key physical depth does the parameter "-145" in model 330881-BR-04-145-06-02 control?
A: It indicates that the probe penetration depth of this component is 145 mm, deeper than the 110 mm model.

Q: What cable exit method does the option "-06" in model 330881-BR-04-145-06-02 provide?
A: This indicates a side exit design and includes wiring accessories with a stainless steel armored protective sleeve.

Q: What does the suffix "-02" in 330881-BR-04-145-06-02 represent in terms of mounting thread specification?
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 nominal output impedance of the dynamic signal output terminal of sensor 330881-BR-04-145-06-02?
A: The standard design resistance of the dynamic voltage signal output terminal of this sensor is 50 ohms.

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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