Product Introduction
When monitoring slow rotating shafts and fin-fan applications demands precision, the Bently Nevada 200155-10-05 Low Frequency Trendmaster Pro accelerometer delivers reliable vibration data. This sensor is designed for low-frequency measurements, making it ideal for machinery where traditional accelerometers struggle. Manufactured in the U.S.A., the 200155-10-05 offers a sensitivity of 10.2 mV/(m/s2) (100 mV/g) at 80 Hz with ±12% tolerance. Its measurement range spans ±196 m/s2 (±20 g), ensuring accurate capture of both subtle and significant vibrations.
Technical Specifications Breakdown
The Bently Nevada 200155-10-05 excels in low-frequency environments. Its frequency range, referenced to 80 Hz, covers 1.5 to 10,000 Hz (90 to 600,000 cpm) with ±10% accuracy. This wide bandwidth allows detection of early bearing faults and imbalance in slow-speed equipment. The mounted resonant frequency exceeds 20 kHz (>1200 kcpm), preventing resonance interference within the measurement band. Amplitude linearity holds within ±2% from 1 to 10 g peak, ensuring consistent output across the operating range. Transverse sensitivity remains below 7%, minimizing cross-axis errors.
Electrical specifications include an excitation voltage of 4.7 to 5.5 Vdc and quiescent current under 800 µA. The output bias voltage sits at +2.5 ± 0.23 Vdc, compatible with standard data acquisition systems. Settling time within 5% of bias is ≤2000 ms, allowing quick stabilization after power-up.
Industry Applications
The 200155-10-05 is specifically engineered for fin-fan coolers and slow rotating shafts—applications where vibration frequencies often fall below 10 Hz. In fin-fan applications, the accelerometer monitors blade pass frequencies and bearing condition, preventing catastrophic failures. For slow rotating shafts (e.g., cooling tower fans, agitators), its low-frequency response captures critical data that standard accelerometers miss. The sensor also performs well in general machinery monitoring where low-speed components require precise vibration analysis.
Installation & Setup Guidance
Mount the Bently Nevada 200155-10-05 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 mounting stud option (10 3/8-24 to 1 NPT, 1-3/8 inch hex stud) simplifies installation on various machine surfaces. Ensure the mounting surface is clean and flat to achieve optimal coupling. The sensor operates in temperatures from -40 ºC to +105 ºC (-40 ºF to +221 ºF) and withstands 100% relative humidity (condensing, non-submerged). Allow 24 hours cure time if using adhesive mounting. Connect the excitation voltage (4.7 to 5.5 Vdc) and verify output bias voltage before commissioning.
Maintenance & Reliability
The 200155-10-05 features a hermetically sealed 316L stainless steel housing and connector, ensuring durability in harsh environments. The ceramic shear sensing element provides long-term stability. Inspect the mounting integrity and cable connections periodically. The sensor withstands axial shock up to 49,050 m/s2 pk (5,000 g pk), protecting against accidental impacts. For reliable operation, verify the output bias voltage remains within +2.5 ± 0.23 Vdc during routine checks. This accelerometer is designed for extended service life, reducing total cost of ownership.
Compatibility & Integration
The 200155-10-05 is used with ProTIM Option Low Frequency Acceleration-to-Velocity channel type (-05). It integrates seamlessly with Bently Nevada monitoring systems. The multiple approvals (CSA, ATEX, and IECEx) ensure compliance with global safety standards for hazardous area installations. The sensor outputs a standard acceleration signal compatible with most vibration data collectors and online monitoring systems.
Selection Guide & Purchasing Advice
When selecting the 200155-10-05, verify the mounting thread (3/8-24 female) and stud option match your application. Confirm the excitation voltage range (4.7 to 5.5 Vdc) is available from your power supply. The sensor weighs 58 g (2.0 oz) and measures 17.5 mm x 45.7 mm (11/16 in x 1.8 in). For slow-speed machinery and fin-fan applications, this model outperforms standard accelerometers. Contact SpareTechPLC for current availability and lifecycle status before ordering.
Frequently Asked Questions
Q: What is the sensitivity of the 200155-10-05?
A: The sensitivity is 10.2 mV/(m/s2) (100 mV/g) at 80 Hz with ±12% tolerance.
Q: What frequency range does this accelerometer cover?
A: The frequency range is 1.5 to 10,000 Hz (90 to 600,000 cpm) referenced to 80 Hz with ±10%.
Q: Can the 200155-10-05 be used in hazardous areas?
A: Yes, it has multiple approvals including CSA, ATEX, and IECEx for hazardous locations.
Q: What is the maximum operating temperature?
A: The temperature range is -40 ºC to +105 ºC (-40 ºF to +221 ºF).
Q: What mounting thread does the sensor use?
A: The mounting thread is 3/8-24 female, with a stud option of 10 3/8-24 to 1 NPT.
