991 Thrust Transmitter 991-05-50-01-00 Bently Nevada

Overview

The Bently Nevada 991-05-50-01-00 is a high-performance vibration transmitter designed for precise monitoring of equipment health. It works with the 3300 NSv proximity probe to deliver a reliable 4-20 mA output signal for real-time data transmission.

Technical Specifications:

• Brand: Bently Nevada
• Model: 991-05-50-01-00
• Full-Scale Option: 0.5-0-0.5 mils
• System Length Option: 5.0 meters (16.4 feet)
• Mounting Option: 35mm DIN-rail clips
• Agency Approval Option: Not required
• Output: 4 to 20 mA signal (loop-powered)
• Input: 3300 NSv Proximity Probe (non-contacting)
• Power Supply: +12 to +35 Vdc input
• Accuracy: ±1.5% over full-scale range (typical)
• Maximum Loop Resistance: 1,000 Ω at 35 Vdc
• Current Limiting: 23 mA typical
• Material: Transducer tip in polyphenylene sulfide (PPS), case in AISI 303 or 304 stainless steel
• Cable: 75Ω coaxial, FEP-insulated; optional flexible AISI 302 SST armor with FEP outer jacket
• Weight: 0.43 kg (0.9 lb)
• Temperature Stability: ±10% of scale factor from 0°C to 70°C (+32°F to +158°F)

Application:

• OEM Integration: Used in centrifugal air compressors, small pumps, motors, or fans to provide a proportional thrust signal.
• Control Systems: Outputs a 4-20 mA signal, ideal for integration into machinery protection and alarming systems.

Frequently Asked Questions (FAQ):

1. What is the purpose of the Bently Nevada 991 Thrust Transmitter?
   • It is used to measure axial displacement (thrust) in rotating machinery, providing a 4-20 mA signal for machinery control systems.
2. Which proximity probe is compatible with the 991 Thrust Transmitter?
   • The transmitter works with the 3300 NSv proximity probe.
3. What is the accuracy of the transmitter?
   • The accuracy is typically ±1.5% over the full-scale range.
4. What is the maximum cable distance for the system?
   • The system supports up to 5.0 meters (16.4 feet) of cable length.
5. Can this transmitter be used in hazardous environments?
   • The device is compatible with non-hazardous Zone 2 or Div 2 hazardous area locations.

For more detailed information:991 Thrust Transmitter Datasheet