Description

Product Description

The Bently Nevada 991-06-70-01-00 is a high-performance Thrust Transmitter engineered for the critical task of monitoring axial shaft position on rotating machinery. As a key component in any comprehensive machinery protection program, this transmitter provides a continuous, reliable measurement of thrust position, which is essential for preventing catastrophic failures associated with thrust bearing wear and damage. The 991-06-70-01-00 translates the gap measurement from a compatible Bently Nevada proximity probe into a proportional 4-20 mA signal. This industry-standard output is designed for seamless integration directly into a plant’s Distributed Control System (DCS), Programmable Logic Controller (PLC), or SCADA system. This direct integration allows for continuous trend analysis, alarming, and automated shutdown sequencing, providing a cost-effective yet powerful solution for asset protection without the need for a full rack-based monitoring system in every application.

Designed for simplicity and reliability in demanding industrial environments, the Bently Nevada 991-06-70-01-00 operates as a two-wire, loop-powered device. This configuration significantly simplifies wiring, reduces installation costs, and minimizes potential points of failure. The transmitter is specifically intended to be used with Bently Nevada’s proven proximity probe systems, such as the 3300 XL series, ensuring high-fidelity measurement of the shaft’s axial movement relative to the thrust bearing. While the 991-06-70-01-00 excels as a standalone monitoring solution for balance-of-plant or less critical machinery, it also serves as a valuable supplement to more extensive systems like the Bently Nevada 3500 Machinery Protection System. In such architectures, it can provide essential thrust position data for process control loops or feed information to auxiliary systems, demonstrating its versatility across various plant-wide monitoring strategies.

The specific part number, 991-06-70-01-00, precisely defines the transmitter’s factory configuration, which is a critical detail for engineers and procurement specialists requiring an exact-fit component. This ordering code specifies the full-scale measurement range (e.g., 2 mm or 80 mils), the type of agency approvals for operation in hazardous areas (e.g., CSA, ATEX), and the designated probe and extension cable compatibility. This ensures that the unit you receive meets stringent site safety standards and integrates perfectly with your existing sensor hardware. By deploying the Bently Nevada 991-06-70-01-00 Thrust Transmitter, facilities can implement a proactive maintenance strategy, receiving early warnings of thrust bearing degradation and enabling planned interventions that avoid costly unplanned downtime and extensive machinery damage.

Specifications

• Part Number: 991-06-70-01-00
• Manufacturer: Bently Nevada
• Type: Thrust Position Transmitter
• Output Signal: 4-20 mA, proportional to axial shaft position
• Power Requirement: Loop-powered, typically 12 to 36 Vdc
• Probe Compatibility: Designed for use with Bently Nevada 3300,