Bently Nevada 200150-21-05 General Purpose Accelerometer for Trendmaster Systems

Product Introduction

When reliable vibration monitoring is critical for rotating machinery, the Bently Nevada 200150-21-05 provides accurate acceleration measurements for general purpose applications. This accelerometer is part of the Trendmaster 2000 or Trendmaster Pro family, designed for continuous monitoring in industrial environments. With multiple approvals including CSA, ATEX, and IECEx, it meets stringent safety standards for hazardous locations.

Technical Specifications Breakdown

The 200150-21-05 features a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, with a measurement range of ±245 m/s² (±25 g). Its frequency range spans 10 to 1000 Hz (600 to 60,000 cpm), referenced to 80 Hz. The mounted resonant frequency exceeds 20 kHz (>1200 kcpm), ensuring reliable high-frequency response. Amplitude linearity is within ±2% from 1 to 10 g peak, and transverse sensitivity is ≤7%. Settling time is ≤300 ms, with an excitation voltage of 4.7 to 5.5 Vdc and quiescent current <800 µA. Output bias voltage is +2.5 ± 0.23 Vdc. The accelerometer operates in a temperature range of -40 °C to +105 °C (-40 °F to +221 °F) and can withstand axial shock up to 49,050 m/s² pk (5,000 g pk). Hermetic sealing is rated at 5x10⁻⁸ atm•cc/s maximum, and it handles 100% relative humidity (condensing, non-submerged). Physical size is 17.5 mm x 45.7 mm (11/16 in x 1.8 in), with a weight of 58 g (2.0 oz). The mounting thread is 3/8-24 female, with a mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf). The sensing element is ceramic with shear geometry, and the housing is 316L stainless steel.

Industry Applications

This accelerometer is ideal for monitoring vibration in pumps, fans, compressors, and motors in industries such as oil and gas, power generation, and manufacturing. Its robust design and multiple approvals make it suitable for use in hazardous areas where safety certifications are required. The 200150-21-05 delivers consistent performance in harsh environments, helping to reduce unplanned downtime and extend equipment life.

Installation & Setup Guidance

Mount the accelerometer using the 3/8-24 female thread with the provided stud option (21 = 3/8-24 outer diameter to M6x1 inner diameter, 1-3/8 inch hex plate stud). Apply the specified mounting torque of 2.7 to 6.8 N•m to ensure proper coupling. Connect the signal wires respecting polarity: SIG+ positive with respect to SIG- for acceleration from base to connector. Allow 24 hours cure time for adhesive mounting if applicable. For best results, mount on a clean, flat surface and avoid excessive cable strain.

Maintenance & Reliability

Periodically inspect the accelerometer for physical damage or corrosion, especially in condensing humidity environments. Verify cable integrity and connector tightness. The hermetic seal and 316L stainless steel construction provide excellent resistance to harsh conditions. Regular calibration checks against known vibration sources help maintain measurement accuracy. Follow manufacturer guidelines for routine testing to ensure reliable operation over the long term.

Selection Guide & Purchasing Advice

Before purchasing the 200150-21-05, verify compatibility with your Trendmaster 2000 or Trendmaster Pro system. Confirm the mounting thread and stud option match your installation requirements. For complete technical specifications, please contact BluePLC Industrial. We offer genuine Bently Nevada products with fast shipping and expert support to help you select the right accelerometer for your application.