Bently Nevada 181M6049 Dual Output Sensor – High-Performance Vibration & Temperature Measurement

Product Overview

When industrial machinery requires reliable vibration and temperature monitoring, the Bently Nevada 181M6049 Dual Output Sensor stands out as a robust solution. Designed for demanding environments, this sensor combines a piezoelectric accelerometer with an integrated temperature sensor, providing dual critical data streams from a single compact unit. Its hermetically sealed 316L stainless steel housing ensures durability in harsh conditions, making it a trusted choice for predictive maintenance programs.

Technical Specifications

The 181M6049 offers a dynamic sensitivity of 100 mV/g (±5% at 25°C) and an acceleration range of 60 g peak. Its frequency response covers ±5% from 3 to 5,000 Hz, ±10% from 1 to 7,000 Hz, and ±3 dB from 0.5 to 12,000 Hz, with a resonant frequency of 30 kHz. The built-in temperature sensor provides an output sensitivity of 10 mV/°C over a measurement range of 2° to 120°C. Power requirements include a voltage source of 18-28 Vdc and a current regulating diode of 2-10 mA. The sensor features a case-isolated, internally shielded design with a 3-pin MIL-C-5015 style connector.

Industry Applications

This sensor excels in rotating machinery monitoring, such as turbines, compressors, and pumps. In oil and gas facilities, its ability to operate from -50°C to +120°C and withstand vibration limits of 500 g peak and shock limits of 5,000 g peak ensures reliable data collection even in extreme conditions. For example, in a refinery, the 181M6049 can be mounted on a critical pump to detect early bearing wear, reducing unplanned downtime and maintenance costs.

Installation & Setup Guidance

Mounting the 181M6049 requires a ¼-28 UNF tapped hole for secure attachment. The connector pin assignments are straightforward: Pin A for accelerometer power/signal, Pin B for common, and Pin C for temperature sensor signal. For cabling, use the 16925-XX (without armor) or 16710-XX (with armor) recommended cables. Ensure the mounting surface is clean and flat to achieve optimal frequency response and avoid measurement errors.

Maintenance & Reliability

Regular inspection of the sensor and cabling is recommended to maintain measurement accuracy. The hermetically sealed design protects against moisture and contaminants, extending service life. Given the sensor's robust construction, routine checks should focus on cable integrity and connector cleanliness. This reliability translates to lower total cost of ownership by minimizing sensor replacements and reducing unplanned maintenance events.

Selection Guide & Purchasing Advice

When selecting the 181M6049, verify your system's voltage supply (18-28 Vdc) and current requirements (2-10 mA). Consider the cabling options: the 16925-XX for standard installations or the 16710-XX for armored protection in abrasive environments. For complete technical specifications, contact BluePLC Industrial, your trusted source for industrial automation parts. Ensure compatibility with your monitoring system's input range and connector type before ordering.