AMIKONG EXCESS CONTROL SYSTEM PARTS
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- Bently Nevada
- 990 and 991 Transmitter
- 991-25-50-01-05
991-25-50-01-05
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Product Information
Product Describe
25 25-0-25 mils
50 5.0 meters (16.4 feet)
01 35 mm DIN-rail clips
05CSA Division 2, ATEX Zone 0
ATEXZone 2 and includes
ABSmaritime approval
50 5.0 meters (16.4 feet)
01 35 mm DIN-rail clips
05CSA Division 2, ATEX Zone 0
ATEXZone 2 and includes
ABSmaritime approval
Specifications
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Product Model991-25-50-01-05
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Product Parameters991 Thrust Transmitter
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Tariff Code8537101190
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Country of originUSA
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Place of shipmentXiamen, China
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Estimated Shipping Size10x7.4x6cm
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ManufacturerBently Nevada
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Weight0.5 kg
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Full-scale Option25-0-25 mils
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System Length Option5.0 meters (16.4 feet)
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Mounting Option35 mm DIN-rail clips
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Agency Approval OptionCSA Division 2, ATEX Zone 0 ATEXZone 2 and includes ABSmaritime approval
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Current Limiting23 mA typical
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Factory New
These are new and current items that are procured from the manufacturer. -
New No Package
These parts are new. They have not been used, but their original packaging is no longer available. -
New In Opened Package
These parts are new. They have not been used, but their original packaging has been opened or the packaging is significantly aged. -
New In Sealed Package
Parts are new. They have not been used and still have their original package seal intact. -
New in Original Package
These parts are new. The packages were not originally sealed by their original manufacturer.
Warranty Period & Disclaimer
Amikon is not an authorized distributor unless otherwise specified, representative, or affiliate of the manufacturer of this product. All trademarks and documents are the property of their respective owners and are provided for identification and informational.
FAQs
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What does the Bently Nevada 991-25-50-01-05 measure?+It measures shaft thrust (axial position) on rotating machinery, converting the signal from a 3300 NSv proximity probe into a 4–20 mA output proportional to the shaft's axial position.
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What probe is required for this transmitter?+This transmitter is designed to work with the 3300 NSv proximity probe and its matching extension cable.
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What is 991-25-50-01-05?+The Bently Nevada 991-25-50-01-05 is a 2-wire, loop-powered Thrust Transmitter. It is designed to provide a 4–20 mA signal proportional to a shaft's axial position (thrust), making it a staple for monitoring smaller, non-critical machinery like centrifugal air compressors, pumps, and fans.
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What happens if the probe fails or the cable is disconnected?+The transmitter includes a "Not OK/Signal Defeat" circuit. If the probe signal goes out of range , the output will drop below 3.6 mA within 100 µs. This prevents the control system from triggering a false high-thrust alarm.
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Which sensors are compatible with this 991-25-50-01-05?+This transmitter is designed for use with the 3300 NSv proximity probe and its accompanying extension cable. It does not work properly with standard 5 mm or 8 mm probes.
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Inquiry
Our customer support team is always on call to help you with any form of consultation. You can inquire by phone or use us on the product page and "contact us" View Amikon terms and conditions
- Product Applications
- Used for auxiliary pump sets and small centrifugal compressors.
- Applied to blowers, draft fans, cooling tower fans and various small and medium-sized water pumps.
- Used for monitoring the vibration of the crossbeam of reciprocating compressors in oil refineries, small centrifugal machines and industrial pumps.
- Monitoring dust removal fans, lubricating oil pumps, conveyor belt drive bearings.
- Monitoring large sewage treatment pumps, centrifugal fans of air conditioning systems and other non-core electromechanical equipment.
- What happens next
- Get the quote now Write Email to INFO@AMIKON.CNEmail confirmation You will get an email confirming that we have received your enquiry.Dedicated Account Manager One of our team will be in touch to confirm your part(s) specification and condition.Your quote You will receive a comprehensive quote tailored to your specific needs.Need Moore Help? Get fast and efficient help from our experienced sales or customer service teams.
- Delivery and payment
- Delivery
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International delivery available
Same day dispatch from warehouse inventory
Warranty
All parts new original are covered by Amikon 12 month warranty
Returns
No hassle returns policy
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Payment options
We accept Bank transfers and the following methods of payment:
For more information, please visit our dedicated payments page.
- Why Choose Amikon Limited?
When it comes to industrial automation, reliability, speed, and trust matter. At Amikon Limited, we go beyond just supplying parts — we deliver confidence.
- ● Extensive Inventory Reach: Nearly 1 million automation parts at your fingertips, including legacy and obsolete models.
- ● 20+ Years of Expertise: Trusted by engineers, project managers and government companies worldwide for our professional service.
- ● Quality You Can Trust: Each unit is strictly inspected by the warehouse staff to ensure product quality
- ● Fast Global Shipping: We help you minimize downtime with express logistics worldwide.
- ● 1-Year Warranty Available: Peace of mind with every purchase backed by one year warranty guarantee.
Whether you're maintaining legacy systems or building future-ready projects, Amikon Limited is your dependable partner in precision and performance.
Product
MORE INFORMATION
Overview
Manuals
Model Configuration Features
Diagnostic Features Supporting Protection
Features:
- Non-interacting zero and span potentiometers underthe Transmitter label supports loop adjustment
- A Power-up Inhibit circuit eliminates signal errors dueto line voltage transients
- Choice of DIN-rail clips or bulkhead mounting screwsas standard options simplifies mounting
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 occurs
The 991-25-50-01-05 Bently Nevada 991 Thrust Transmitter may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 991-25-50-01-05 991-25-50-01-05 Manuals, Datasheets, Drivers, 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.
Measurement Range (-25): Configured for 25-0-25 mils (approx. 0.6-0-0.6 mm). This provides a centered "zero" point to monitor shaft movement in both directions.
System Length (-50): Calibrated for a 5.0 meter total system length (Proximity Probe + Extension Cable).
Mounting (-01): Includes the hardware for 35 mm DIN-rail mounting, making it easy to install in standard industrial cabinets.
Approvals (-05): A multi-agency approval rating including CSA, ATEX/IECEx (Zone 0, 1, and 2), and maritime certifications (ABS).
Dynamic Signal Access (PROX OUT): A non-isolated coaxial connector allows you to connect an oscilloscope or analyzer to view the raw vibration/gap voltage signal without interrupting the 4–20 mA protection loop.
Test Input Pin: Allows technicians to inject a variable DC voltage to verify the 4–20 mA loop output without needing to move the machine shaft.
Product
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32D UNITS,GUOMAO BUILDING,NO 388 HUBIN SOUTH ROAD,SIMING DISTRICT,XIAMEN