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991-01-XX-01-00 MOD:284318-01

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The BENTLY NEVADA 991-01-XX-01-00 MOD:284318-01 Thrust Transmitter is a precision-engineered industrial sensor designed for monitoring axial thrust or displacement in rotating machinery such as turbines, compressors, pumps, and generators.
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Technical specifications for 991-01-XX-01-00 MOD:284318-01

  • Manufacturer:
    Bently Nevada
  • Part Number:
    991-01-XX-01-00 MOD:284318-01
  • Product Family:
    991 Thrust Transmitter
  • Measurement Range:
    Customizable (typically 0–20 mm or as specified by application)
  • Output Signal:
    4–20 mA (linear to thrust displacement), ±1 VDC, or other configurable outputs
  • Accuracy:
    ±1% of full-scale range
  • Power Supply:
    18–30 VDC (standard)
  • Operating Temperature:
    -40°C to +85°C (-40°F to +185°F)
  • Frequency Response:
    0–1 kHz (dependent on configuration)
  • Material:
    Stainless steel housing for corrosion resistance
  • Electrical Connections:
    Terminal block or MIL-spec connectors
  • Compatibility:
    Integrates with BENTLY NEVADA monitoring systems
  • Weight:
    0.5 kg
  • Estimated shipping dimensions:
    10x7.4x5.8cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.
Description

The BENTLY NEVADA 991-01-XX-01-00 MOD:284318-01 Thrust Transmitter is a precision-engineered industrial sensor designed for monitoring axial thrust or displacement in rotating machinery such as turbines, compressors, pumps, and generators. This device plays a critical role in preventing equipment failure by providing real-time data on axial position changes, enabling proactive maintenance and operational adjustments.


Built with ruggedized components, the transmitter is suitable for harsh industrial environments. It converts mechanical thrust displacement into a standardized electrical signal , which can be integrated into control systems or condition monitoring platforms like BENTLY NEVADA’s System 1®. The modular design ensures easy installation, calibration, and compatibility with a wide range of machinery configurations.

The 991 Thrust Transmitter is intended primarily for theoriginal equipment manufacturers (OEMs) of centrifugal aircompressors or small pumps, motors, or fans who prefer toprovide a simple 4 to 20 mA proportional axial displacement(thrust) signal as the input to their machinery control system.The transmitter is a 2-wire, loop-powered device thataccepts input from our 3300 NSv proximity probe and itsmatching extension cable (available in 5 m and 7 m systemlength options). The transmitter conditions the signal intoappropriate engineering units proportional to the shaft’s axialposition1, and provides it as a 4 to 20 mA industry-standardsignal for input to the control system where machineryprotection alarming and logic occurs2.

Alternative Names
99I-01-XX-01-00 MOD:284318-01 99I-O1-XX-01-00 MOD:284318-01 99I-OI-XX-O1-00 MOD:284318-01 99I-OI-XX-OI-OO MOD:284318-01 99I-OI-XX-OI-OO MOD:2843I8-OI 991-01-XX-01-00 99I-01-XX-01-00 99I-OI-XX-01-00 99I-OI-XX-OI-OO
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the primary application of the 991-01-XX-01-00 Thrust Transmitter?
It is used to monitor axial thrust or displacement in rotating machinery to detect misalignment, bearing wear, or rotor instability, preventing catastrophic failures.
What are the typical environmental and electrical specifications for this device?
This transmitter operates from approximately 9–32 VDC power, provides a 4‑20 mA output, and is designed for use in harsh conditions with an IP67 protection rating and a temperature range typically from around ‑40 °C to +85 °C, making it durable for industrial settings.
Which industries or applications commonly use this model?
The 991‑series thrust transmitter is commonly used in heavy machinery monitoring, including turbines, compressors, pumps, motors, and similar rotating equipment where precise thrust measurement is critical for condition monitoring, control systems, and predictive maintenance.

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