Product Overview
When fin-fan fans or slow rotating shafts demand precise vibration monitoring, the Bently Nevada 200155-17-05 Low Frequency Trendmaster Pro accelerometer delivers reliable performance. This industrial accelerometer is engineered for low-frequency applications where standard sensors fall short. With a measurement range of ±196 m/s² (±20 g) and sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, it captures subtle vibrations critical for predictive maintenance.
Technical Specifications Breakdown
The 200155-17-05 offers a frequency range of 1.5 to 10,000 Hz (90 to 600,000 cpm), referenced to 80 Hz with ±10% tolerance. Its mounted resonant frequency exceeds 20 kHz, ensuring accurate readings across the operating band. Amplitude linearity holds within ±2% (1 to 10 g pk), while transverse sensitivity stays at or below 7%. Settling time is ≤2000 ms, allowing quick stabilization after power-up. Excitation voltage ranges from 4.7 to 5.5 Vdc, with quiescent current under 800 µA and output bias voltage of +2.5 ± 0.23 Vdc.
Industry Applications
This accelerometer excels in fin-fan cooling systems and slow rotating shaft monitoring. In fin-fan applications, the low-frequency response captures blade-pass and structural vibrations, helping prevent unexpected failures. For slow rotating shafts, the 1.5 Hz lower limit ensures reliable data even at low rotational speeds. The -40°C to +105°C temperature range suits harsh outdoor environments, while the hermetically sealed design (5x10⁻⁸ atm•cc/s maximum leakage) resists moisture and contaminants.
Installation & Setup Guidance
Mount the 200155-17-05 using the 3/8-24 female thread with a mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf). The included stud option (17 3/8-24 to 3/8-16 UNC 1-3/8 inch hex plate stud) simplifies installation. Ensure the mounting surface is clean and flat for optimal coupling. Allow 24 hours cure time for adhesive mounting if applicable. The accelerometer uses a ceramic shear sensing element housed in 316L stainless steel for durability.
Maintenance & Reliability
From a maintenance engineer's perspective, the 200155-17-05 requires minimal upkeep. Its hermetic sealing protects against humidity (100% relative, condensing, non-submerged) and axial shock up to 49,050 m/s² pk (5,000 g pk). Regularly inspect the cable and connector for damage. The 316L stainless steel housing resists corrosion, extending service life in demanding environments. The accelerometer's settling time of ≤2000 ms ensures quick readiness after power cycles, reducing downtime during system restarts.
Compatibility & Integration
The 200155-17-05 works with the ProTIM option for low-frequency acceleration-to-velocity channel type (-05). It integrates seamlessly into Bently Nevada monitoring systems for comprehensive vibration analysis. The multiple approvals (CSA, ATEX, and IECEx) ensure compliance in hazardous areas. The accelerometer provides positive polarity (SIG+ positive with respect to SIG-) for acceleration from base to connector.
Selection Guide & Purchasing Advice
Before purchasing, verify your application requires low-frequency monitoring (1.5 Hz to 10 kHz) and that the sensitivity (10.2 mV/(m/s²)) matches your data acquisition system. The 200155-17-05 is ideal for fin-fan and slow rotating shaft applications. SpareTechPLC stocks this model with fast shipping and expert support. Please verify current lifecycle status and availability with SpareTechPLC before ordering.
