Bently Nevada 200155-09-05 Low Frequency Trendmaster Pro Accelerometer

Product Overview

When monitoring slow rotating shafts or fin-fan applications, the Bently Nevada 200155-09-05 Low Frequency Trendmaster Pro Accelerometer delivers reliable vibration data. This accelerometer is designed for use with the ProTIM option Low Frequency Acceleration-to-Velocity channel type (-05). It provides accurate measurements in challenging industrial environments, helping you detect early signs of mechanical wear and prevent unplanned downtime.

Technical Specifications

The 200155-09-05 offers a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz (±12%). Its measurement range is ±196 m/s² (±20 g) for acceleration and 24.5 mm/s² (2.5 mg) for low-frequency applications. The frequency range spans 1.5 to 10,000 Hz (90 to 600,000 cpm) referenced to 80 Hz (±10%). Mounted resonant frequency exceeds 20 kHz (>1200 kcpm). Amplitude linearity is ±2% (1 to 10 g pk), and transverse sensitivity is ≤7%. Settling time (within 5% of bias) is ≤2000 ms. Excitation voltage is 4.7 to 5.5 Vdc, quiescent current is <800 µA, and output bias voltage is +2.5 ± 0.23 Vdc. Polarity is SIG+ positive with respect to SIG- for acceleration from base to connector.

Environmental and Physical Characteristics

The accelerometer operates from -40 °C to +105 °C (-40 °F to +221 °F) and withstands axial shock up to 49,050 m/s² pk (5,000 g pk). Hermetic sealing is rated at 5×10⁻⁸ atm·cc/s (3.1×10⁻⁹ atm·in³/s) maximum, and relative humidity tolerance is 100% condensing, non-submerged. Physical size is 17.5 mm x 45.7 mm (11/16 in x 1.8 in), weight is 58 g (2.0 oz) typical. Mounting thread is 3/8-24 female, mounting torque is 2.7 to 6.8 N·m (2 to 5 ft·lbf). The sensing element is ceramic with shear geometry, and the housing and connector material is 316L stainless steel. The mounting stud option 09 is 3/8-24 to 3/4 NPT, 1-1/4 inch hex stud. Approvals include CSA, ATEX, and IECEx (option 05).

Industry Applications

This accelerometer is ideal for fin-fan cooling systems and slow rotating shafts where low-frequency vibration monitoring is critical. It is commonly used in oil and gas, power generation, and heavy industry to detect imbalance, misalignment, and bearing degradation. The 200155-09-05 helps maintenance teams implement predictive maintenance strategies, reducing unexpected failures and extending equipment life.

Installation and Setup Guidance

Mount the accelerometer using the 3/8-24 female thread with a mounting torque of 2.7 to 6.8 N·m (2 to 5 ft·lbf). Ensure the mounting surface is clean and flat for optimal coupling. Connect the sensor to a compatible ProTIM module configured for Low Frequency Acceleration-to-Velocity channel type (-05). Allow 24 hours cure time after installation before taking critical measurements. For best results, follow the manufacturer's guidelines for sensor placement and cable routing to minimize noise.

Maintenance and Reliability

Regular inspection of the accelerometer and its mounting is recommended to ensure consistent performance. The hermetically sealed 316L stainless steel housing protects against harsh environments. Verify the output bias voltage periodically to confirm sensor health. With proper installation and routine checks, the 200155-09-05 provides long-term reliability in demanding applications.

Selection Guide and Purchasing Advice

When selecting the 200155-09-05, confirm that your monitoring system supports the required excitation voltage (4.7 to 5.5 Vdc) and channel type. Verify the mounting stud option (09: 3/8-24 to 3/4 NPT, 1-1/4 inch hex stud) matches your installation. For complete technical specifications, please contact BluePLC Industrial. Our team can help you verify compatibility and availability for your specific application.