The Bently Nevada 990-05-50-03-01 offers a robust solution for monitoring shaft vibration in critical industrial assets. This model delivers exceptional reliability for continuous machinery protection. It directly accepts input from a single 3300 NSv proximity probe. Furthermore, this transmitter provides a straightforward 4 to 20 mA signal proportional to vibration amplitude. Consequently, it integrates easily into existing PLCs, DCS, and safety systems. You can trust the Bently Nevada 990 vibration transmitter to enhance your asset management strategy.
The device features a full-scale range of 0-5 mils pp (0-125 μm pp). It includes a system length of 5.0 meters (16.4 feet) for flexible installation. The 990-05-50-03-01 operates on a loop power supply of +12 to +35 Vdc. Importantly, the 4 to 20 mA loop accuracy is within ±1.5% over the specified range. This accuracy is measured from the TEST signal to the voltage across a 250 Ω load. Additionally, the error rating excludes the Prox Out Incremental Scale Factor. The maximum loop resistance is 1,000 Ω at 35 Vdc, and the typical current limiting is 23 mA.
The Bently Nevada 990 offers a wide frequency response from 5 Hz to 6,000 Hz (+0, 3 dB). This range ensures it captures both low and high-frequency vibration components. The unit includes convenient non-interacting external zero and span adjustments. These adjustments simplify the calibration process significantly. Moreover, the transmitter features a "NOT OK" signal defeat function. The output drops to less than 3.6 mA within 100 μs of a fault condition. This fast response allows your control system to trigger safety actions immediately.
The Bently Nevada 990-05-50-03-01 has a transmitter weight of just 0.43 kg (0.9 lbm). It features mounting option 03 with DIN clips and screws for secure attachment. The unit also includes agency approval option 01 for 35 mm DIN rail clips. For proper installation, the probe must be gapped between 0.5 and 1.75 mm (20 and 55 mils). Correct gapping ensures the transmitter achieves its full-scale range. Additionally, the minimum target size required is 9.5 mm (0.375 inches) in diameter. The maximum lead wire length from the Proximitor Sensor Output (BNC connector) is limited to 3 meters (10 feet). This transmitter is suitable for non-hazardous, Zone 2, or Division 2 hazardous area locations when powered by a 28 V supply.
First, mount the Bently Nevada 990 vibration transmitter securely using the provided DIN rail clips. Next, connect your 3300 NSv proximity probe and extension cable to the input. Then, ensure the probe is properly gapped between 20 and 55 mils from the target. After that, wire the two-wire 4-20 mA loop to your power supply and monitoring system. Finally, use the non-interacting zero and span adjustments to set your desired output range.
The Bently Nevada 990-05-50-03-01 is packaged in a protective anti-static bag.
It is then placed in a durable, foam-lined industrial shipping carton.
Shipment includes the transmitter unit with the specified mounting hardware (DIN clips and screws).
All products are shipped using premium carriers: Fedex, UPS, or DHL.
Q: What is the full-scale measurement range of the 990-05-50-03-01?
A: This Bently Nevada 990 model has a full-scale option of 0-5 mils peak-to-peak (0-125 μm pp). It is ideal for monitoring shaft vibration in small to medium-sized machines.
Q: What happens to the 4-20 mA output if the transmitter detects a fault?
A: For the Bently Nevada 990-05-50-03-01, the signal output will drop to less than 3.6 mA within 100 microseconds. It will automatically restore within 2-3 seconds after the "NOT OK" condition clears.
Q: What power supply does this transmitter require?
A: The transmitter requires a DC loop voltage between +12 and +35 Vdc at its terminals. The maximum loop resistance is 1,000 Ω, which includes cable resistance at 35 Vdc.
Q: Can I use this transmitter in a hazardous area?
A: Yes, the Bently Nevada 990 vibration transmitter is suitable for use in non-hazardous, Zone 2, or Division 2 hazardous area locations. Use a 28 Vdc power supply for hazardous area installations.
Q: What is the frequency response of this transmitter?
A: The frequency response is from 5 Hz to 6,000 Hz +0, 3 dB. This wide bandwidth makes the Bently Nevada 990-05-50-03-01 suitable for both low-speed and high-speed machinery.
| Brand Name | |
| Model No. | 990-05-50-03-01 |
| Product Type | Transmitter |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
This Bently Nevada 991-06-70-01-05 thrust transmitter converts proximity probe signals into a 4-20 mA output for axial position monitoring. It offers a 0.6-0-0.6 mm full-scale range, 7.0-metre system length, and DIN-rail mounting. With CSA Division 2 and ATEX Zone 0 approvals, this transmitter suits turbines, compressors, and pumps.
This Bently Nevada 330500-07-01 Velomitor sensor delivers precise velocity measurements for rotating machinery. It features a 3/8-16 UNC mounting thread, 3.94 mV/mm/s sensitivity, and a wide 4.5 Hz to 5 kHz frequency response. With CSA/US/C approval and rugged 316L stainless steel construction, this sensor is ideal for turbines, compressors, and pumps.
This Bently Nevada 330500-06-04 Velomitor sensor delivers accurate velocity measurements for rotating machinery. It offers a 3.94 mV/mm/s sensitivity, wide frequency response from 4.5 Hz to 5 kHz, and robust 316L stainless steel construction. With CSA and ATEX approvals, this sensor suits hazardous areas, including turbines, compressors, and pumps.
The Bently Nevada 21504-00-16-05-02 is an 8mm standard mount proximity probe from the 7200 series. It provides non-contact vibration and position measurement for rotating machinery. This sensor offers a linear range of 80 mils (2.0 mm) with a sensitivity of 200 mV/mil.
The Bently Nevada 21505-00-44-10-02 is a high-performance 8 mm proximity probe designed for precision vibration monitoring. It offers a calibrated 80 mil range with a 200 mV/mil scale factor, ensuring reliable machinery protection.
The Bently Nevada 21500-00-24-05-02 is a 5 mm proximity probe from the 7200 series. It offers a calibrated linear range of 80 mils (2.0 mm) with a scale factor of 200 mV/mil. This model includes a 2.4-inch case, an unthreaded length of 0 mm, and a 0.5-meter integral cable terminated with a miniature male coaxial connector.
The Bently Nevada 21000-16-10-00-120-03-02 is a complete proximity probe housing assembly from the 21000 series. This unit supports a 3300 XL 8 mm probe with a 1.0 m cable. It features 12 inches of probe penetration, a 3/4-14 NPT mounting thread, and includes multiple conduit fitting options. The aluminum body with a 304 stainless steel sleeve ensures durability.
The 21000-28-05-00-105-04-02 is a Bently Nevada proximity probe housing assembly. It includes a 3300 XL 8 mm probe, 0.5 m cable, 10.5 in penetration, and 3/4-14 NPT mounting for machinery protection.
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