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The 990-05-50-03-05 is a two-wire, loop-powered vibration transmitter manufactured by Bentley Nevada, USA. It is an industrial-grade instrument primarily used for monitoring and providing low-cost protection against shaft vibration in rotating machinery such as centrifugal air compressors, small pumps, electric motors, or fans.
Integrated Proximitor Sensor requires no external unit
Non-interacting zero and span potentiometers under the Transmitter label supports loop adjustment
Test Input pin for quick verification of loop signal output, using a function generator as the input
The 990 Vibration Transmitter is intended primarily for the original equipment manufacturers (OEMs) of centrifugal air compressors or small pumps, motors, or fans who prefer to provide a simple 4 to 20 mA proportional vibration signal as the input to their machinery control system. The transmitter is a two-wire, loop-powered device that accepts input from our 3300 NSv proximity probe and its matching extension cable (available in 5 m and 7 m system length options). The transmitter conditions the signal into appropriate peak to-peak vibration amplitude engineering units, and provides this value as a proportional 4 to 20 mA industry-standard signal as the input to the control system where machinery protection alarming and logic occurs.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Bently Nevada 990-05-50-03-05 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.
Thermal Power
Used to monitor shaft radial displacement and vibration of small-to-medium steam turbines or boiler feed pumps to prevent catastrophic rotor-to-stator rubs.
Petroleum & Gas Refining
Used to monitor shaft vibration of high-pressure centrifugal oil pumps to prevent crude oil leakage and fire hazards caused by imbalance or bearing wear.
Pharmaceutical Industry
Used to monitor dynamic vibration of industrial centrifuges in sterile workshops to prevent equipment damage from huge centrifugal forces caused by uneven material distribution.
Pulp & Paper
Used to monitor exhaust fans and pulp pumps in drying sections, ensuring continuous operation in 100% condensing humidity environments due to its potted design.
Metallurgy & Steel Industry
Used to monitor shaft vibration of large blast furnace blowers, where failure due to excessive vibration could cause severe accidents like furnace cooling and iron solidification.
When using the 990-05-50-03-05, strictly match the 5.0-meter total length of the probe and cable system, and never cut or extend them. Ensure you measure the DC voltage via the BNC jack to accurately calibrate the probe gap during installation. Lastly, the device must be powered by a +12 to +35 Vdc loop, and a safety barrier is mandatory in hazardous areas.
It is an industrial-grade vibration transmitter. It measures the relative mechanical vibration via an eddy current sensor (proximity probe near the shaft) and directly converts it into an industry-standard 4-20 mA current signal to output to a control system (such as a PLC or DCS).
How does the 990-05-50-03-05 work?
It integrates Proximitor Sensor functionalities internally. It provides a high-frequency signal to the connected non-contact proximity probe.
What is the system length of the 990-05-50-03-05?
The total system cable length must be 5.0 meters. This includes the probe's integral cable length plus the extension cable length.
How to install the 990-05-50-03-05 properly?
It uses a DIN rail clip and screw mounting method. It can be snapped directly onto a standard 35mm industrial DIN rail or secured onto a panel/bulkhead using screws.
Which sensor probe matches with the 990-05-50-03-05?
It is specifically designed to work with Bently Nevada's 3300 NSv non-contact proximity probes and their matching extension cables.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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