Product Overview

The Bently Nevada 177230-00-01-05 is a rugged, self-contained seismic vibration transmitter designed to provide a simple and cost-effective solution for machinery protection. This loop-powered device measures casing vibration velocity and converts it into a standardized 4-20 mA analog signal. By integrating the transducer and signal conditioning electronics into a single stainless steel housing, the 177230-00-01-05 eliminates the need for external proximitor sensors or rack-mounted monitors. It is specifically engineered to interface directly with Programmable Logic Controllers (PLCs), Distributed Control Systems (DCS), or SCADA systems, making it an ideal choice for general-purpose machinery that requires continuous monitoring without the complexity of a full Turbine Supervisory Instrumentation (TSI) rack.

Hardware Parameters and Key Characteristics

The 177230 series is built for durability in demanding industrial zones, offering precise RMS velocity measurements and high resistance to environmental interference.

• Model Number 177230-00-01-05

• Measurement Range 0 to 12.7 mm/s (0 to 0.5 in/s) RMS velocity

• Frequency Response 10 Hz to 1,000 Hz (600 to 60,000 cpm) ± 10%

• Output Signal 4 to 20 mA DC (Proportional to full-scale velocity)

• Mounting Option 1/4-28 UNF Stud Mount (Option -00)

• Agency Approvals Multi-certification including ATEX, IECEx, and CSA for hazardous areas (Option -01)

• Connector Option 3-pin MIL-C-5015 top-exit connector (Option -05)

• Excitation Voltage 12 to 30 Vdc (Loop-powered)

• Casing Material 316L Stainless Steel

• Environmental Rating IP66 / NEMA 4X (Weatherproof)

• Electrical Isolation 500 Vrms isolation from case to internal electronics

Industrial Applications and Operational Use Cases

This seismic transmitter is a versatile tool for asset health management across various industrial sectors. It is primarily used to monitor absolute casing vibration on machines with rolling-element bearings.

• Electric Motors and Pumps Continuous monitoring of vibration levels to detect early signs of bearing failure, unbalance, or cavitation.

• Cooling Tower Fans Providing real-time velocity data to prevent structural damage caused by fan blade pitch issues or gearbox mechanical looseness.

• Small Steam Turbines Measuring absolute vibration on the bearing housings to ensure operational safety during load changes.

• Centrifugal Air Compressors Protecting auxiliary equipment where the high cost of a dedicated monitoring rack is not justified.

• Hazardous Process Areas Utilizing the -01 approval option for safe operation in refineries and chemical plants where explosive atmospheres are present.