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        Bently Nevada 991-01-XX-02-05 thrust transmitter, compact industrial enclosure for thrust and axial position monitoring
        Bently Nevada 991-01-XX-02-05 thrust transmitter, showing wiring terminal block and front hardware details
        Bently Nevada 991-01-XX-02-05 thrust transmitter, machinery protection device with visible connector and label area
        Bently Nevada 991-01-XX-02-05 thrust transmitter, compact industrial enclosure for thrust and axial position monitoring
        Bently Nevada 991-01-XX-02-05 thrust transmitter, showing wiring terminal block and front hardware details
        Bently Nevada 991-01-XX-02-05 thrust transmitter, machinery protection device with visible connector and label area
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        991-01-XX-02-05

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        1001 reviews ｜ Need a Specific Revision?
        The 991-01-XX-02-05 Thrust Transmitter is a 2-wire, loop-powered unit that accepts input from a 3300 NSv proximity probe and outputs a 4–20 mA thrust signal proportional to shaft axial position.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 991-01-XX-02-05

        • Manufacturer:
          Bently Nevada
        • Part Number:
          991-01-XX-02-05
        • Product Family:
          991 Thrust Transmitter
        • Product Type:
          Thrust Transmitter
        • Stock:
          5
        • Mounting Option:
          Bulkhead screws
        • Agency Approval Option:
          CSA Division 2, ATEX Zone 0, ATEX Zone 2 and includes ABS maritime approval
        • Power Requires:
          +12 to +35 Vdc
        • Operating Temperature:
          -35°C to +85°C (-31°F to +185°F)
        • Storage Temperature:
          51°C to +100°C (-60°F to +212°F)
        • Weight:
          0.44 kg
        • Estimated shipping dimensions:
          7.3x5x10cm
        • 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.

        More Information

        Overview Manuals Specifications Applications Compatibility & Interoperability Monitoring & Control

        Features:

        • 2-Wire Loop-Powered Design for Simplified Control System Integration
        • Direct Signal Conditioning from 3300 NSv Proximity Probe to 4-20 mA Output
        • Available with 5 m and 7 m System Length Cable Configuration Options
        The 991-01-XX-02-05 serves as a dedicated thrust transmitter for original equipment manufacturers of centrifugal air compressors or small pumps, motors, and fans. This 991-01-XX-02-05 device continuously accepts input from the Bently Nevada 3300 NSv proximity probe and its matching extension cable, with system length options available in 5 m and 7 m configurations. The 991-01-XX-02-05 conditions the proximity signal into appropriate engineering units proportional to the shaft's axial position and delivers a standard 4 to 20 mA output directly to the machinery control system. This 2-wire, loop-powered 991-01-XX-02-05 is specifically designed for OEMs who require a simple, proportional thrust signal input without the complexity of full-scale vibration monitoring architectures.

        The 991-01-XX-02-05 provides essential thrust monitoring functions critical to the axial displacement measurement path and directly affects the proper, normal operation of machinery protection systems in rotating equipment. As a compact signal conditioning transmitter, the 991-01-XX-02-05 functions as a vital bridge between non-contact proximity sensing technology and conventional analog control inputs. One 991-01-XX-02-05 unit is required per thrust measurement point, installed between the 3300 NSv probe assembly and the host control system where machinery protection alarming and logic decisions are executed.

        For installation and integration applications, the 991-01-XX-02-05 connects directly to the 3300 NSv proximity probe positioned to detect axial shaft movement on the monitored machine. The transmitter performs internal signal conditioning using circuitry specified in the 991 series design, eliminating the need for additional external converters. Using this method, the 991-01-XX-02-05 continually processes proximity input and outputs a stable 4 to 20 mA signal representing real-time thrust position. For facilities upgrading existing machinery protection systems, the 991-01-XX-02-05 offers a streamlined upgrade path by providing standardized 4 to 20 mA thrust monitoring capability that integrates directly with existing control loop infrastructures without requiring extensive system reconfiguration.

        The 991-01-XX-02-05 Bently Nevada Thrust Transmitter may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Bently Nevada 991-01-XX-02-05 Thrust Transmitter Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        Bently Nevada 991-01-XX-02-05 Thrust Transmitter Specs

        General

        • Manufacturer Bently Nevada
        • Model 991-01-XX-02-05
        • Condition New Original ready stock
        • Product Family 991-01-XX-02-00,991-01-XX-02-01,991-01-XX-01-05
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Centrifugal Air Compressors: Real-time tracking of thrust balance changes caused by aerodynamic variations or surging.
        • Industrial Pumps: Monitoring multi-stage boiler feedwater pumps, process pumps, and small high-speed fluid pumps against excessive thrust bearing wear.
        • Electric Motors & Generators: Detecting rotor positioning shifts due to magnetic center misalignment or external thrust forces.
        • Small Fans & Blowers: Safeguarding balance components in confined or space-constrained plant layouts.
        • Matched Extension Cables: Must connect via matching 75Ω coaxial FEP-insulated extension cables.
        • Calibration Target: Engineered with a standard linear scale factor of 7.87 mV/µm (200 mV/mil) when utilizing a flat 4140 steel target profile.
        • Direct PLC/DCS Integration: The main 4-20 mA current loop wires directly into standard Analog Input channels of standard Programmable Logic Controllers (PLCs), Distributed Control Systems (DCS), or safety-rated machinery protection processors.
        • Diagnostic "Prox Out" Output: Incorporates an unisolated, dedicated BNC coaxial terminal and terminal blocks labeled PROX OUT and COM. This delivers raw dynamic gap voltage signals (200 mV/mil) directly to portable data collectors or software like the Bently Nevada ADRE system for advanced rotor orbit and vibration diagnostics.
        • Not OK / Signal Defeat Circuit: Instantly drops loop current below 3.6 mA within 100 microseconds of a probe defect or a severed connection, ensuring the control system recognizes a component fault rather than triggering a false machinery trip.
        • Power-up Inhibit Circuit: Dampens lines during startup voltage transients to suppress inaccurate data spikes.
        • External Loop Tuning: Non-interacting zero and span potentiometers are accessible right below the cover label for rapid loop calibration checks.
        Description
        The Bently Nevada 991-01-XX-02-05 thrust transmitter is a high-precision measurement device specially designed for industrial equipment Oems, mainly used for axial displacement monitoring of centrifugal air compressors, small pumps, motors and fans. It receives the axis position signal through a 3300 NSv proximity probe and converts it into a standard 4-20 mA output, providing real-time thrust information for the control system and supporting mechanical protection alarm and logic control.

        This 991-01-XX-02-05 transmitter adopts a two-wire loop power supply design, with a power supply voltage range of +12 to +35 V DC. It has a fast and stable response and can operate for a long time in an ambient temperature range of -35°C to +85°C, adapting to various industrial working conditions. The device itself supports panel screw installation, making it convenient to integrate into existing systems.

        Furthermore, 991-01-XX-02-05 has CSA Division 2, ATEX Zone 0/2 certifications and ABS maritime certification, meeting strict safety standards for industrial and Marine applications. Its wide temperature range design and robust structure ensure that the equipment maintains high reliability and precise measurement capabilities even in harsh environments.
        Alternative Names
        991 01 XX 02 05 991-01-XX-02-00 991-01-XX-02-01 991-01-XX-02-CN 991-01-XX-01-05 991-01-XX-03-05 991-06-XX-02-05 991-25-XX-02-05
        Technical notes
        The Bently Nevada 991-01-XX-02-05 Thrust Transmitter is a 2-wire, loop-powered axial displacement transmitter designed for OEM applications such as centrifugal air compressors, small pumps, motors, and fans. It converts proximity probe signals into a standardized 4–20 mA output for easy integration into industrial control systems.
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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.
        VIEW ALL FAQS
        How does the 991-01-XX-02-05 simplify signal conversion in machinery monitoring systems?
        The transmitter conditions raw proximity probe data into a proportional 4–20 mA signal, translating shaft axial position into a simple engineering output. This removes the need for complex signal processing equipment and allows direct connection to standard control and monitoring systems.
        What industries and equipment typically use the 991-01-XX-02-05?
        It is mainly used in machinery protection and OEM applications, especially in centrifugal air compressors, pumps, motors, and fans. These systems require cost-effective and reliable thrust or axial displacement monitoring for operational safety and basic protection logic.
        How is the 991-01-XX-02-05 installed and integrated?
        The device accepts input from the Bently Nevada 3300 NSv proximity probe and matching extension cable, typically in 5 m or 7 m configurations. As a loop-powered transmitter, it uses a simple 2-wire connection that carries both power and the 4–20 mA output signal, making installation straightforward and wiring requirements minimal.
        What are the advantages of using the 991-01-XX-02-05 in industrial systems?
        It provides a reliable and standardized method for axial displacement monitoring across rotating equipment fleets. Its simple architecture reduces system complexity, improves spare parts standardization, and ensures consistent thrust measurement, making it a practical solution for OEMs and facility-wide machinery monitoring upgrades.

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        Product Browsing History

        Bently Nevada 991-01-XX-02-05 thrust transmitter, compact industrial enclosure for thrust and axial position monitoring
        Bently Nevada 991-01-XX-02-05 thrust transmitter, showing wiring terminal block and front hardware details
        Bently Nevada 991-01-XX-02-05 thrust transmitter, machinery protection device with visible connector and label area
        Bently Nevada 991-01-XX-02-05 thrust transmitter, compact industrial enclosure for thrust and axial position monitoring
        Bently Nevada 991-01-XX-02-05 thrust transmitter, showing wiring terminal block and front hardware details
        Bently Nevada 991-01-XX-02-05 thrust transmitter, machinery protection device with visible connector and label area