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Bently Nevada 990-04-50-02-CN Vibration Transmitter
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Warranty：1 year
Condition：Brand new and factory sealed
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Detail
- Product NameBently Nevada 990-04-50-02-CN Vibration Transmitter
- Item NO.990-04-50-02-CN
- Weight0.4300 kg = 0.9480 lb = 15.1678 oz
- CategoryOTHER> Bently Nevada> Other
- BrandBently Nevada
- Creation Time2026-10-27
- Bently Nevada 990-04-50-02-CN is a bulkhead-mounted vibration transmitter for a 5 m proximity-probe system and machinery-control loops.
990-04-50-02-CN
Contact info
Specifications
| Full-scale vibration | 0–4 mils pk-pk (0–100 µm pk-pk) |
| Transducer system length | 5.0 m |
| Transmitter supply | +12 to +35 Vdc |
| Signal output | 4–20 mAdc; two-wire loop |
| Loop accuracy | ±1.5% full scale; TEST input to 250 Ω loop |
| Maximum loop resistance | 1,000 Ω including cable at 35 Vdc |
| Typical current limit | 23 mA |
| NOT OK output | <3.6 mA |
| Fault response time | Within 100 µs |
| Fault recovery time | 2–3 s after fault removal |
| Power-up inhibit | 2–3 s; output <3.6 mA |
| PROX OUT impedance | 10 kΩ |
| PROX OUT calibration load | 10 MΩ |
| Transducer linear range | 1.4 mm (55 mils) |
| Incremental scale factor | 7.87 mV/µm (200 mV/mil) |
| Typical scale-factor tolerance | ±6.5%, including interchangeability |
| Worst-case scale-factor tolerance | ±10% |
| Typical PROX OUT noise | 50 mV pk-pk |
| Scale-factor temperature stability | Within ±10% from 0 to +70 °C |
| Frequency response | 5–6,000 Hz; +0/−3 dB |
| Diagnostic cable limit | 3 m at PROX OUT BNC |
| Operating temperature | −35 to +85 °C |
| Storage temperature | −52 to +100 °C |
| Relative humidity | 100% condensing; non-submerged; connectors protected |
| Proximity probe inputs | 1; 3300 NSv with matching extension cable |
| Mounting configuration | Bulkhead screws; option 02 |
| China approval option | CN; NEPSI/CCC requirements as applicable |
| Hazardous-area ambient range | −30 to +85 °C; applicable approval conditions |
| Zone 0/1 supply entity Ui | 28 V |
| Zone 0/1 supply entity Ii | 120 mA |
| Zone 0/1 supply entity Pi | 0.84 W |
| Zone 0/1 supply entity Ci | 20 nF |
| Zone 0/1 supply entity Li | 10 µH |
| EMC immunity | EN 61000-6-2 |
| EMC emissions | EN 61000-6-4 |
The 990-04-50-02-CN transmitter uses a 5 m proximity-transducer system and bulkhead screw mounting. Its two-wire vibration output connects to machinery-control equipment, and the CN suffix identifies the China-specific approval configuration.
Description
Bently Nevada 990-04-50-02-CN is a 990 series vibration transmitter with a 0–4 mils peak-to-peak range and a 5 m transducer system. The two-wire output provides a proportional 4–20 mA signal. Bulkhead screws define the mounting configuration, while the CN suffix selects the China-specific approval option. Integrated proximity-signal conditioning removes the need for a separate Proximitor unit. A diagnostic output gives access to dynamic vibration and gap information with suitable test equipment. This configuration serves machine builders incorporating vibration trending into compressor and small rotating-equipment controls.
Function
Proximity input is converted into an overall vibration signal for a machinery-control loop.
The separate dynamic output allows suitable isolated instruments to inspect the transducer signal.
Product Applications
Centrifugal air compressor manufacturers can incorporate overall vibration monitoring within their control arrangements.
Panel installations can use screw mounting where rail clips are unsuitable for the chosen enclosure.
About Company
With 20+ years of industry experience, we serve customers worldwide and have built long-term relationships across the UK, Russia, UAE, India, Venezuela, and more.
Our experienced team provides reliable pre-sales and after-sales support, helping customers select suitable products and resolve purchasing concerns.
We supply leading automation brands covering PLCs, DCS, I/O modules, drives, motors, power supplies, communication modules, and more.
A wide range of products is available from stock, including discontinued, obsolete, and hard-to-find parts, helping reduce sourcing time.
We value long-term cooperation and treat every customer with honesty, respect, responsibility, and care.
From a single replacement part to complete automation projects, we are ready to support your needs and build a long-term partnership.
After-Sales Support
Most products are covered by a warranty of up to 12 months, subject to the applicable terms and conditions. If any product-related issue occurs during the warranty period, our team will assist you and provide an appropriate solution.
Relevant datasheets and technical literature can be provided with the goods, offering useful information for product identification, installation, operation, and maintenance.
We understand the importance of minimizing equipment downtime. Our team responds promptly to inquiries and provides professional assistance with product information, quotations, order status, shipping, and after-sales questions.
We serve customers worldwide and provide reliable assistance from inquiry to delivery and after-sales service, ensuring clear and timely communication throughout the process.
We continue to source discontinued, obsolete, and hard-to-find automation parts from various brands, helping customers maintain existing equipment and reduce downtime caused by spare parts shortages.
Major Business
| ABB | Industrial robot parts of DSQC series,Bailey INFI90, DCS |
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| Schneider | 140 Series |
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