The Bently Nevada 990-05-70-02-00 is a 990 XL 2-wire vibration transmitter with a 0-5 mil range. It converts proximity probe signals into a 4-20 mA output for direct DCS/PLC integration.
The Bently Nevada 990-05-70-02-00 functions as a self-contained, 2-wire transmitter that converts a proximity probe signal into a standard 4-20 mA current loop. This device integrates the functions of a Proximitor sensor and a signal conditioner into a single unit. It measures the radial vibration of a rotating shaft and outputs a signal proportional to the overall peak-to-peak displacement. By providing a direct interface to a Distributed Control System (DCS) or Programmable Logic Controller (PLC), the 990 XL eliminates the need for specialized vibration monitor racks in non-critical machinery applications.
Engineers designed the 990-05-70-02-00 to operate within a 5-meter total system length, typically pairing it with a 3300 XL 8mm proximity probe. This specific model features a full-scale range of 0-5 mils (0-125 µm) peak-to-peak, providing high-resolution data for precise vibration tracking. Furthermore, the transmitter includes a “Prox Out” buffered signal port. This allows technicians to connect portable diagnostic equipment, such as a field data collector, to view the raw vibration waveform without interrupting the 4-20 mA control loop.
This vibration transmitter actively simplifies the integration of machinery protection into existing plant control architectures. Because it uses a standard 4-20 mA interface, it allows for easy trending and alarming within the plant’s HMI environment. Consequently, maintenance teams can implement cost-effective monitoring for general-purpose equipment like motors, fans, and pumps. The 990-05-70-02-00 ensures that operators receive immediate notification of mechanical issues such as rotor imbalance or shaft misalignment, thereby preventing unexpected downtime.
Primary industrial applications include:
Bently Nevada utilizes high-durability materials to ensure the 990-05-70-02-00 performs reliably in punishing industrial environments. The transmitter housing features excellent resistance to electromagnetic interference (EMI), which prevents signal noise from affecting the accuracy of the 4-20 mA loop. Additionally, the DIN rail mounting option facilitates rapid installation within existing electrical cabinets. The unit also includes internal protection against reversed polarity and over-voltage, ensuring that the electronics remain safe during commissioning and routine maintenance.
991-06-70-02-01 Product datasheet
Model number: | 991-06-70-02-01 | Module Type： | Thrust Transmitter | |
Manufacture: | Bently Nevada | Condition： | Brand New | |
Range of Product: | 990 Vibration Transmitter | Lead time： | In Stock | |
Weight: | 0.5 kg | HS CODE： | 8537101190 | |
Dimension: | 10x7.3x6cm | MOQ: | 1 | |
Product Origin: | USA | System： | TSI | |
Discontinued on: | active | Communication Service: | Ethernet router |
991-06-70-02-01 Functional Description
The Bently Nevada 991-06-70-02-01 Thrust Transmitteris a specialized thrust transmitter designed for OEMs of centrifugal compressors and rotating equipment. This 2-wire loop-powered device converts proximity probe signals into industry-standard 4-20mA outputs for seamless integration with machinery control systems.
Featuring integrated Proximitor technology, the 991-06-70-02-01 Bently Nevada in Stockeliminates external sensor requirements while providing dynamic vibration outputs for diagnostics. Its non-interacting zero/span potentiometers enable precise loop calibration, and the test input pin allows quick verification of signal integrity.
The Bently Nevada 991-06-70-02-01 PDFoffers exceptional reliability with potted construction for 100% condensing environments. Available with DIN-rail clips or bulkhead mounting options, this transmitter includes power-up inhibit and Signal Defeat circuits to prevent false alarms from voltage transients or probe faults.
Optimized for space-constrained applications, the 990 Vibration Transmitter 991-06-70-02-01 Bently Nevadaworks with 3300 NSv probes in 5m/7m configurations. This makes it ideal for centrifugal compressors and pumps where clearance is limited but precise axial position monitoring is critical.
990-05-50-02-00 Product datasheet
Model number: | 990-05-50-02-00 | Module Type： | Vibration Transmitter | |
Manufacture: | Bently Nevada | Condition： | Brand New | |
Range of Product: | 990 Vibration Transmitter | Lead time： | In Stock | |
Weight: | 0.46 kg | HS CODE： | 8537101190 | |
Dimension: | 7.4x5.3×9.9cm | MOQ: | 1 | |
Product Origin: | USA | System： | TSI | |
Discontinued on: | active | Communication Service: | Ethernet router |
990-05-50-02-00 Functional Description
The Bently Nevada 990-05-50-02-00 Vibration Transmitteris a two-wire, loop-powered vibration transmitter designed for OEMs of compressors, pumps, and fans. This robust device converts signals from 3300 NSv proximity probes into a 4-20mA output, providing real-time vibration data to control systems. The 990-05-50-02-00 VIBRATION TRANSMITTER Bently Nevadaoperates on 12-35VDC and supports 1,000Ω loop resistance, ensuring reliable performance in industrial environments.
Engineered for accuracy, the Vibration Transmitter Bently Nevada 990-05-50-02-00measures 0-5 mils pp (0-125μm pp) vibration ranges, with 23mA current limiting for protection. Its bulkhead screw mounting (option 02) offers secure installation, while compatibility with 5m/7m extension cables provides flexibility. The transmitter’s compact design integrates seamlessly into machinery control systems.
The Bently Nevada 990-05-50-02-00 PDFfeatures signal conditioning to filter noise, delivering clean data for predictive maintenance. Its loop-powered design eliminates external power needs, simplifying wiring and reducing costs. Ideal for harsh conditions, it meets industrial standards for durability.
As part of Bently Nevada’s trusted 990 series, the 990 Vibration Transmitter Bently Nevada 990-05-50-02-00ensures early fault detection and machinery protection. Its combination of precision measurement, rugged construction, and easy integration makes it a top choice for OEMs and end-users alike.
991-06-70-01-00Product datasheet
Model number: | 991-06-70-01-00 | Module Type： | Vibration Transmitter | |
Manufacture: | Bently Nevada | Condition： | Brand New | |
Range of Product: | 990 Vibration Transmitter | Lead time： | In Stock | |
Weight: | 0.46 kg | HS CODE： | 8537101190 | |
Dimension: | 7.3x5.9x9.9cm | MOQ: | 1 | |
Product Origin: | USA | System： | TSI | |
Discontinued on: | active | Communication Service: | Ethernet router |
991-06-70-01-00 Functional Description
The Bently Nevada 991-06-70-01-00 Vibration Transmitteris a loop-powered thrust transmitter designed for OEMs of centrifugal compressors, pumps, and fans. This compact device converts signals from 3300 NSv proximity probes into a 4-20 mA output proportional to axial shaft displacement, enabling seamless integration with control systems for machinery protection. The 991-06-70-01-00 Input and Output Cards Bently Nevadafeatures an integrated Proximitor sensor, eliminating the need for external signal conditioning units.
Key advantages of the Bently Nevada 991-06-70-01-00 PDFinclude non-interacting zero/span adjustments, a test input pin for loop verification, and a Power-up Inhibit circuit to prevent transient-related errors. Its "PROX OUT" terminal and coaxial connector provide dynamic vibration signals for diagnostics, while the Not OK/Signal Defeat circuit avoids false alarms from probe faults.
The 990 Vibration Transmitter 991-06-70-01-00 Bently Nevadaoffers flexible DIN-rail or bulkhead mounting and potted construction for 100% condensing environments. Compatible with 5m/7m 3300 NSv probe systems, it excels in space-constrained installations.
Ideal for OEM applications, the Thrust Transmitter 991 Bently Nevadadelivers reliable thrust monitoring with industry-standard outputs, ensuring machinery safety in demanding industrial settings.
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