991-06-70-01-00 | Bently Nevada 991 Series Thrust Transmitter

Product Overview

The Bently Nevada 991-06-70-01-00 integrates proximity probe signal conditioning and 4-20 mA output into a single, compact device. Designed to monitor axial shaft position (thrust) on critical rotating machinery, this transmitter provides essential protection data directly to your PLC or DCS. We supply this unit as 100% Brand New and Original in factory-sealed packaging, ensuring full compatibility with your existing machinery protection strategy.

Part Number Breakdown

The 991 series utilizes a modular selection process to ensure the electronics match the physical probe installation:

Technical Specifications

The 991-06-70-01-00 maintains high-fidelity signal conversion for long-term industrial use:

• Output Signal: 4 to 20 mA DC (Proportional to axial thrust)

• Measurement Range: 0.6 mm - 0 - 0.6 mm

• System Compatibility: Designed for 3300 XL 8 mm Proximity Probes

• Electrical System Length: 7.0 meters (Probe + Extension Cable)

• Operating Temperature: -35°C to +85°C (-31°F to +185°F)

• Input Power: +17.5 to +30 Vdc

• Weight: 0.46 kg (1.01 lbs)

Engineering Advantages

• Direct Control System Interface: This transmitter eliminates the requirement for a centralized monitoring rack. By outputting a linearized 4-20 mA signal, it allows your DCS to handle alarm and shutdown logic directly, reducing infrastructure costs.

• Optimized for Mid-Length Systems: The "70" system length option specifically supports 7.0-meter electrical configurations. This provides the necessary flexibility for installations where 5.0 meters is too short, but 9.0 meters creates excessive cable slack.

• Simplified Field Diagnostics: Each unit features a BNC connector that provides a raw buffered signal. Reliability engineers can connect a portable analyzer to verify probe gap or vibration signatures without interrupting the 4-20 mA loop.

• Rapid Cabinet Integration: The 01 mounting option includes pre-installed 35 mm DIN-rail clips. This "snap-on" design minimizes installation time and allows for high-density mounting in congested electrical panels.

FAQs

• Can I use this with a 5.0-meter or 9.0-meter probe system? No. The "70" option indicates this transmitter is calibrated specifically for a 7.0-meter total electrical length. Using mismatched lengths will cause significant measurement errors.

• Is the 12-month warranty included? Yes. Since we provide only Brand New and Original equipment, the product carries a full 12-month factory warranty from the date of purchase.

• What is the "00" suffix for agency approvals? The "00" suffix indicates a standard version without specialized hazardous area certifications like ATEX or IECEx. This version is intended for use in safe/general-purpose industrial areas.

• Does the unit ship with the 3300 XL probe? The 991-06-70-01-00 is the transmitter only. Proximity probes and extension cables must be ordered separately to match your specific machine mounting requirements.