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- Bently Nevada
- 990 and 991 Transmitter
- 990-05-50-01-00
· Product image is representative; revision or series may vary. Contact us to request a specific version.
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.
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.
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.
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.
Parts 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 990-05-50-01-00
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Product Model990-05-50-01-00
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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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Estimated Shipping Size7.3x6x10cm
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ManufacturerBently Nevada
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Weight0.46 kg
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Full-scale Option0-5 mils pp (0-125 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 OptionNot required
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Power Requires+12 to +35 Vdc input atthe transmitter terminal
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Current limiting23 mA typical
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Zero and spanNon-interacting externaladjustments
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Frequencyresponse5 Hz to 6,000 Hz +0, 3 dB
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TransducercasematerialAISI 303 or 304 Stainless Steel
Description
05 0-5 mils pp (0-125 μm pp)
50 5.0 meters (16.4 feet)
01 35 mm DIN rail clips
00 Not required
50 5.0 meters (16.4 feet)
01 35 mm DIN rail clips
00 Not required
Information
Overview
Manuals
Technical notes
Product Applications
990/991 Transmitter Calibration and Test Procedures
Features:
- Integrated Proximitor Sensor Requires no External Unit
- Non-Isolated PROX OUT and COM Terminals Plus a Coaxial Connector
- Non-Interacting Zero and Span Potentiometers
- Test Input Pin for Quick Verification of Loop Signal Output
- Not OK/Signal Defeat Circuit Prevents High Outputs or False Alarms
- Potted Construction for High Humidity Environments (Up to 100% Condensing)
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 990-05-50-01-00 Bently Nevada 990 Vibration Transmitter may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 990-05-50-01-00 990 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.
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.
Vibration transmitters have many limitationswhen compared to a continuous vibrationmonitoring system. They are a practicalsolution in some applications for measuringgeneral vibration levels and are a valuable toolfor overall vibration trending. However, theyprovide limited capability for machinerydiagnostics using the vibration signal and donot capture dynamic vibration signals (used fordiagnostics) in the event of a vibration alarm.While the transmitter is capable of peakvibration alarming and non-OK checking, the4-20 mA signal cannot be used to determinethe phase of vibration, and monitor functionssuch as gap alarms, phase alarms, Timed OKchannel defeat, Danger Bypass, and TripMultiply cannot be used. In addition, PLCsattached to the vibration transmitter can onlyprovide peak-to-peak trending data and arenot suitable for plant-wide diagnostic systemssuch as System 1 or Rule Paks
- Petrochemical and Refining Plants:Early imbalance/bearing wear detection for compressors/pumps handling volatile fluids
- Power Generation Facilities:Monitors auxiliary motors, fans & pumps supporting turbine operations
- Food and Beverage Manufacturing:Reliable monitoring for high-speed processing & bottling plant motors
- Pulp, Paper, and Steel Mills:Potted construction for heavy-duty fans/blowers in harsh/humid environments
- Water and Wastewater Treatment:Monitors continuously-running large pumps & aerators for plant throughput
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.
The 990 Vibration Transmitter is calibrated by adjusting the zero potentiometer with no input signal to achieve 4 mA output, and the span potentiometer with a full-scale vibration signal to achieve 20 mA output. For the 991 Thrust Transmitter, the mechanical calibration method requires setting the probe gap to produce a 6.5 VDC signal (measured between Prox Out and COM) and adjusting the zero potentiometer to 12 mA (center of range); span adjustment is then performed by setting the probe gap for a full-scale signal and adjusting the span potentiometer to the corresponding loop current. Both transmitters feature a Test input pin that enables quick verification of loop signal output using a function generator (990) or variable DC source (991) without requiring machine shaft movement.
FAQs
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What is 990-05-50-01-00?+The Bently Nevada 990-05-50-01-00 is a 2-wire vibration transmitter used for continuous monitoring of centrifugal air compressors, small pumps, and fans.
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What is the function of this transmitter 990-05-50-01-00?+It converts a 3300 NSv proximity probe signal into a 4-20 mA proportional vibration signal for use in mechanical control systems.
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Does 990-05-50-01-00 require an external proximity sensor?+No, the 990 transmitter has a built-in proximity sensor; no separate device is needed.
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Can it operate in high-humidity environments?+Yes, it features a potted construction designed for high humidity (up to 100% condensing).
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What is the operating voltage of 990-05-50-01-00?+The operating voltage of this device is 24V DC.
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32D UNITS,GUOMAO BUILDING,NO 388 HUBIN SOUTH ROAD,SIMING DISTRICT,XIAMEN