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The 990-04-70-01-05 is a 2-wire loop-powered vibration transmitter belonging to the Bently Nevada 990 series. A complete system includes the transmitter, a 3300 NSv proximity probe, and a matching extension cable. This full ordering code specifies a 0-4 mils pp full-scale range, a 7.0-meter system length, 35 mm DIN rail mounting, and multiple agency explosion-proof approvals, converting eddy current gap signals into a proportional 4-20 mA output.
Integrated Proximitor Sensor requires no external unit
Non-interacting zero and span potentiometers under the Transmitter label supports loop adjustment
Choice of DIN-rail clips or bulkhead mounting screws as standard options simplifies mounting
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 990-04-70-01-05 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.
Power Generation
Used for shaft vibration monitoring of small-to-medium steam turbine or feedwater pump bearing housings, outputting 4-20 mA signals directly to control systems.
Petroleum Refining & Petrochemicals
Used for continuous shaft vibration monitoring of low-pressure stage bearings in centrifugal process gas compressors.
Nuclear Power
Used for mechanical vibration protection of conventional centrifugal pumps and auxiliary feedwater motor-driven pumps in the auxiliary island.
Iron & Steel Metallurgy
Used for high-precision vibration detection of exhaust fan bearings in Blast Furnace Top Gas Recovery Turbine (TRT) units.
Mining & Mineral Processing
Used for radial dynamic vibration monitoring of large washing slurry pump drive bearings in heavy mineral processing plants.
Pulp & Paper
Used for mechanical integrity monitoring of high-speed dryer drum drive gearboxes and special high-pressure refiner bearings .
When using 990-04-70-01-05, note that it is a vibration transmitter only designed for measuring peak-to-peak vibration, and cannot be used for axial displacement monitoring.
During installation, ensure the total system length is exactly 7.0 meters, and secure it using a standard 35 mm DIN rail. The 2-wire loop must be supplied with 12 to 35 Vdc, and intrinsically safe wiring regulations must be strictly followed in hazardous areas.
The 990-04-70-01-05 eliminates the need for traditional monitoring racks and directly converts non-contact sensed mechanical shaft vibration into a standard 4-20 mA current signal for input to a DCS or PLC.
This is a 990 series 2-wire proximity transmitter.
What series does 990-04-70-01-05 belong to?
It belongs to the Bently Nevada 990 Vibration Transmitter System.
What kind of power supply does 990-04-70-01-05 require?
It requires an 18 to 30 Vdc power source connected across its 4–20 mA current loop terminals.
What does the -70 mean in 990-04-70-01-05?
It stands for a 7.0-meter (23.0 feet) total system length.
Do you offer global goods and services?
Yes. We ship globally, and we are able to quickly deliver parts globally to any corner of the world. Unless otherwise specified, we will ship your order via (DHL). We can also ship through FedEx, UPS, and TNT. We can also use your account.
How many parts do you have in stock?
We have an extensive stock base consisting of ten thousands of new and discontinued automation parts including those from leading manufacturers such as:Control Systems (DCS, PLC, CNC) ,Panel Controllers,HMI and Display Panels,Drives,Encoders and Resolvers,Power Supplies.
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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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