107770-03-03 Bently Nevada Transducer Housing Assembly

The Bently Nevada 107770-03-03 is a CENELEC-certified explosion-proof housing for piezoelectric velocity transducers, built from 316 stainless steel with a 1/2-14 NPT mount, IP66 sealing, and a −40 to +120 °C operating range for Zone 1/2 hazardous areas. Designed to enclose 177230/190501/330500-class seismic velocity probes with minimal vibration-transfer loss, it protects casing-vibration sensors on turbines, compressors, and pumps within Bently 3500 condition-monitoring loops.

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Description

Technical Specifications
  • Brand
    Bently Nevada
  • Model
    107770-03-03
  • Product Name
    CENELEC Approved Transducer Housing Assembly
  • Place of Origin
    United States
  • HS Code
    8543709990
  • Dimensions
    89 mm × 41 mm × 38 mm
  • Weight
    0.142 kg
  • Operating Temperature
    ‑50 °C ~ +85 °C
  • Storage Temperature
    ‑55 °C ~ +90 °C
  • Power Supply
    24 VDC
  • Warranty
    12month
  • Product Status
    New and original

Backed by abundant in-stock inventory and nearly 20 years of industry experience, our company stands as a leading player in the industrial control sector.We offer an extensive range of industrial control products covering numerous models. Should you have any other requirements, please feel free to contact us, and we will respond to you promptly.


Our main brand:

1.ABB's module cards, touch screens, controllers, etc., such as PP846 touch screen, IGCT starting with 5SHY, PM starting controller, AI, DO starting input/output module, SP starting Bailey module, etc

2.GE's module card CPUs, such as VMIC starter, IS200, IS215, IS400, IS420 series, etc,

3.Emerson's card components and EPRO probes, Westinghouse 1C series, Honeywell CC series, Schneider 140 series, Envision full series, Bentley 3500 series, Rexroth motors and drives, and Foxboro small modules.
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Bently Nevada 107770‑03‑03 Electrical Specifications

Power Supply Input: Operates from regulated DC loop power within the range of +18 VDC to +28 VDC, with 24 VDC specified as the nominal operating supply voltage. This wide input voltage tolerance accommodates minor voltage drops along long‑distance field cabling and common fluctuations from plant DC power distribution systems.

Operating Current: This unit adopts 4‑20 mA two‑wire loop‑powered working mode. The quiescent baseline current stands at 4 mA under zero‑vibration input condition. When the measured casing vibration velocity reaches full‑scale maximum value, the output current rises up to 20 mA correspondingly. Both device power consumption and vibration measurement analog signal are transmitted over the identical loop current.

Signal Output: Provides 4‑20 mA analog current output which varies proportionally with the real‑time casing vibration velocity. The vibration measurement signal is galvanically isolated internally, and can be transmitted to Bently Nevada 3500 series machinery monitoring racks, as well as plant‑side DCS and other third‑party data acquisition systems for machinery condition monitoring and trend recording.

Output Load Requirement: Under nominal 24 VDC supply condition, the maximum permissible loop load resistance is 500 Ω. This load limit covers the combined resistance of field cables, input modules and external termination components, ensuring accurate 4‑20 mA signal transmission without signal distortion.

Intrinsic‑Safety Parameters: For ATEX / CENELEC hazardous‑area deployment, the intrinsic‑safety rated parameters are Ui=28 VDC, Ii=93 mA, Pi=0.65 W. These parameters shall be strictly followed when matched with certified safety barriers for installation within explosive classified locations.

Signal Interface: Implements standard two‑wire loop connection architecture. Independent dedicated signal wiring is not required. Both operating power supply and vibration measurement signal share one single pair of field cables, simplifying on‑site wiring work and reducing overall cabling cost for machinery protection systems.

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Bently Nevada 107770-03-03 Main Features

This unit is a two-wire loop-powered seismic velocity transducer purpose-built for casing vibration monitoring on rotating machinery, including turbines, centrifugal pumps, fans and compressors.

It provides 4-20 mA analog current output that varies linearly with measured casing vibration velocity. The standardized analog output enables direct interfacing with Bently Nevada 3500 machinery monitoring racks, plant DCS platforms and various third-party data acquisition systems.

Built-in galvanic isolation is implemented between the internal vibration sensing assembly and external output loop circuitry. This design efficiently mitigates ground-loop disturbances and common-mode electrical noise commonly encountered within heavy-industry field cabling infrastructure.

The transducer accepts DC supply voltages spanning +18 VDC to +28 VDC, with 24 VDC as the nominal operating voltage. The broad input voltage margin compensates for voltage losses generated over long field cable lengths.

The device meets ATEX and CENELEC intrinsic-safety requirements. Its certified safety parameters Ui=28 VDC, Ii=93 mA, Pi=0.65 W allow valid deployment within explosive hazardous zones when paired with appropriately approved safety barrier components.

Constructed with heavy-duty 316L stainless-steel housing, the transducer exhibits superior anti-corrosion capability, making it well-suited for demanding outdoor installations and aggressive process-plant operating environments.

Equipped with standard 1/2-14 NPT threads for both mechanical mounting and cable entry, the transducer facilitates straightforward mechanical fitting and proper explosion-proof cable sealing onto equipment casings.

Optimized mechanical vibration transfer structure ensures precise and faithful vibration detection throughout its operational frequency bandwidth of 4.5 Hz to 5 kHz.

Thanks to two-wire loop design, extra dedicated signal cables are not required. Both operating power and vibration measurement signal are transmitted via one single cable pair, lowering field wiring labor and overall project expenditure.

Under 24 VDC nominal supply, the maximum permissible loop load resistance reaches 500 Ω. This rating covers total resistance contributed by field cables, safety barriers and backend input channels while preserving signal integrity without waveform distortion.

Featuring compact dimensions and low-weight construction, this field-validated transducer is engineered for uninterrupted long-run machinery health monitoring and machinery protection duties.

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Frequently Asked Questions (FAQ)

1.How fast will you reply to my inquiry?

We process all inquiries efficiently and will respond promptly once we receive your message.

2.Do you carry large inventory of industrial control parts?

We maintain massive ready stock of mainstream automation spare parts to shorten lead times.

3.Can you source discontinued or obsolete PLC & DCS modules?

Absolutely.
We specialize in sourcing hard-to-find, obsolete and out-of-production industrial control components.

4.Do you inspect goods before shipment?

Every product undergoes thorough inspection before packing and dispatch.

5.Can you ship orders worldwide?

We provide global shipping with flexible logistics for urgent and regular orders.

6.What payment methods are available?

We accept multiple secure payment options. Please contact our sales team for detailed terms

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