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- Bently Nevada
- 990 and 991 Transmitter
- 990-08-50-01-05
In Stock
Ships by Wednesday, July 8
Fast Shipping Available
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.
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.
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.
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.
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.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for 990-08-50-01-05
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Product Model990-08-50-01-05
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Product ParametersVibration 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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In stock1 unit
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Estimated Shipping Size7.5x6x10cm
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ManufacturerBently Nevada
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Weight0.46 kg
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Full-scale Option0-8 mils pp (0-200 μm pp)
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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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Output Accuracy±5% of full scale
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Output Resolution0.1 mils
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Loop Power12–30 VDC (two-wire, loop-powered)
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Maximum Load Resistance600 Ω at 24 VDC
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Output Impedance> 10 MΩ
Description
The 990 Vibration 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 vibration signal asthe input to their machinery control system.
The transmitter is a two-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 into appropriate peakto-peak vibration amplitude engineering units, and providesthis value as a proportional 4 to 20 mA industry-standardsignal as the input to the control system where machineryprotection alarming and logic occurs.
The transmitter is a two-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 into appropriate peakto-peak vibration amplitude engineering units, and providesthis value as a proportional 4 to 20 mA industry-standardsignal as the input to the control system where machineryprotection alarming and logic occurs.
Alternative Names
990-08-50-01-O5
990-08-50-0I-05
990-08-50-O1-05
990-08-5O-01-05
990-O8-50-01-05
99O-08-50-01-05
990 08 50 01 05
990 08 50 01 O5
990 08 50 0I 05
990 08 50 O1 05
990 08 5O 01 05
990 O8 50 01 05
99O 08 50 01 05
990-08-50-01-00
990-08-50-01-01
Information
Overview
Manuals
Application Notes
Product Applications
Probe Insertion & Mechanical Gap
Features:
- Integrated Proximitor Sensor
- Non-Isolated "PROX OUT" and "COM" Terminals with Coaxial Connector
- Non-Interacting Zero and Span Potentiometers
- Test Input Pin for Quick Loop Verification
- External zero and span calibration adjustments
The transmitter accepts the input from a 3300 NSv proximity probe and matching extension cable. It processes the eddy-current probe signal and converts the measured shaft vibration into a standard 4–20 mA output, proportional to a 0–8 mils (0–200 μm) peak-to-peak vibration range. This analog output enables continuous monitoring of machinery condition using conventional process control equipment.
The 990-08-50-01-05 Bently Nevada Vibration Transmitter may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 990-08-50-01-05 Vibration Transmitter 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.
Frequency response is 10 Hz to 1,000 Hz (-3 dB), covering the primary vibration frequencies of most rotating machinery. Output accuracy is ±5% of full scale with 0.1 mil resolution. The transmitter is calibrated for AISI 4140 steel targets with a minimum target diameter of 15 mm (0.59 in).
The transmitter operates as a two-wire, loop-powered device requiring 12 to 30 VDC from the receiving instrument. Power consumption is less than 1 W. Maximum load resistance is 600 Ω at 24 VDC. Input-to-output isolation is 500 VDC. Reverse polarity protection and integrated transient voltage suppression protect against wiring errors and electrical transients.
The aluminum housing is epoxy-coated for corrosion resistance and mounts on standard 35 mm DIN rail or directly to a panel. The integral 1.0 meter coaxial cable connects the probe to the transmitter electronics via a miniature coaxial connector. Environmental sealing is rated IP65, protecting against dust and water jets.
- Power Generation: Deployed in thermal/nuclear/combined-cycle stations to safeguard generator sets
- Oil & Gas: Implemented across upstream/downstream machinery to mitigate catastrophe risks
- Petrochemical Refining: Protects continuous-duty process compressors from severe structural cross-contact
- Steam Turbines: Tracks differential growth between fast-heating rotor and slower-expanding stator casing
- Gas Compressors: Monitors axial changes and heavy shaft displacements in industrial compressors
- Fluid-Film Bearings: Provides long-range non-contact positioning for massive rotating assemblies
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Target Surface: Must be made of a conductive material (e.g., AISI 4140 steel) and be at least 9.5 mm (0.375 inches) in diameter.
Gap Adjustment: Position the 3300 NSv proximity probe so the gap between the probe tip and the target is between 0.5 mm and 1.75 mm (20 mils to 55 mils).
Signal Verification: Set the gap until you measure a center gap voltage of roughly -6.5 Vdc between the PROX OUT and COM terminals.
Thread Seating: Ensure thread engagement length matches class specifications; do not over-tighten, which could cause binding or damage the probe.
Technical notes
The 990 transmitter complies with FCC rules, EMC Directive 2014/30/EU, ATEX Directive 2014/34/EU, RoHS Directive 2011/65/EU, and ABS 2009 Steel Vessels Rules. The 990 also carries hazardous area approvals including cNRTLus Class I, Div 2 Groups A, B, C, D, T5 @ Ta [+85°C, Type 4] when installed per Drawing 128838, as well as ATEX/IECEx Zone 2 and Zone 0/1 approvals with entity parameters for power supply up to 28V.
FAQs
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What is the 990-08-50-01-05?
+The Bently Nevada 990-08-50-01-05 is a 2-wire Vibration Transmitter that converts proximity probe signals into a standard 4--20 mA output for integration into PLCs, DCS, or SCADA systems -
What sensors does 990-08-50-01-05 use?
+It integrates directly with Bently Nevada 3300 narrow side-view (NSv) proximity probes and extension cables. -
What are the output characteristics of the 990-08-50-01-05?
+In addition to a 4-20 mA proportional output, it features a coaxial connector and non-isolated terminals for direct output of dynamic vibration (raw) signals and gap voltage detection signals. -
How do I verify the loop output?
+You can use the built-in Test Input pin and a function generator to quickly verify and test loop signal output without disconnecting your system.
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Disclaimer: Amikon Limited sells new and surplus products and develops channels for purchasing such products. Amikon Limited is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Amikon Limited is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. Amikon Limited is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
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32D UNITS,GUOMAO BUILDING,NO 388 HUBIN SOUTH ROAD,SIMING DISTRICT,XIAMEN