991-01-XX-01-05 991 Thrust Transmitter Bently Nevada

Overview

The Bently Nevada Thrust Transmitter 991-01-XX-01-05 is a high-quality, 2-wire loop-powered device that primarily caters to original equipment manufacturers (OEMs) of centrifugal air compressors, small pumps, motors, and fans. Its main function is to provide a simple 4-20 mA proportional axial displacement (thrust) signal that integrates seamlessly with machinery control systems.

Technical Specifications:

• Brand: Bently Nevada
• Model: 991-01-XX-01-05
• Type: Thrust Transmitter
• Made in: U.S.A
• Input: Accepts 1 non-contacting 3300 NSv proximity probe and extension cable.
• Power: +12 to +35 VDC input at transmitter terminal.
• Output: 4-20 mA over specified full-scale range.
• Accuracy: ±1.5% typical over full-scale range.
• Maximum Loop Resistance: 1,000 Ω at 35 VDC (including cable).
• Current Limiting: 23 mA typical.
• Transducer Tip: Polyphenylene Sulfide (PPS).
• Transducer Case Material: AISI 303 or 304 Stainless Steel (SST).
• Probe Cable: 75Ω coaxial, FEP insulated.
• Optional Cable Armor: Flexible AISI 302 SST with optional FEP outer jacket.
• Transmitter Weight: 0.43 kg (0.9 lbm).

Frequently Asked Questions (FAQ):

Q: What is the primary application of the 991 Thrust Transmitter?

• The 991 Thrust Transmitter is designed for OEMs of centrifugal air compressors, small pumps, motors, and fans, providing a 4-20 mA signal proportional to axial displacement for machinery control systems.

Q: What agency approvals does the 991 Thrust Transmitter have?

• It is approved for CSA Division 2, ATEX Zone 0, ATEX Zone 2, and includes ABS maritime approval.

Q: What is the maximum loop resistance for this device?

• The maximum loop resistance is 1,000 Ω, including the cable at 35 VDC.

Q: What materials are used in the construction of the 991 Thrust Transmitter?

• The transducer tip is made from Polyphenylene Sulfide (PPS), and the case is constructed from AISI 303 or 304 Stainless Steel (SST).

Q: Can the product be customized for different system lengths?

• Yes, the 991 Thrust Transmitter is available in 5-meter (16.4 feet) and 7-meter (23.0 feet) system length options to suit various installation requirements.

For more detailed information:991 Thrust Transmitter Datasheet