Introduction
When monitoring slow rotating shafts and fin-fan applications, standard accelerometers often fail to capture low-frequency vibration data accurately. The Bently Nevada 200155-16-05 Low Frequency Trendmaster Pro Accelerometer solves this challenge by providing reliable measurements from 1.5 Hz upward. Designed for demanding industrial environments, this accelerometer delivers precise data for predictive maintenance and asset protection.
Technical Specifications Breakdown
The 200155-16-05 offers a sensitivity of 10.2 mV/(m/s2) (100 mV/g) at 80 Hz, with a measurement range of ±196 m/s2 (±20 g). Its frequency range spans 1.5 to 10,000 Hz (90 to 600,000 cpm), making it suitable for low-speed machinery. The mounted resonant frequency exceeds 20 kHz, ensuring minimal interference. Amplitude linearity is within ±2% (1 to 10 g pk), and transverse sensitivity is ≤7%. Settling time is ≤2000 ms, and excitation voltage is 4.7 to 5.5 Vdc. Quiescent current is <800 µA, with an output bias voltage of +2.5 ± 0.23 Vdc. The accelerometer operates from -40 ºC to +105 ºC and withstands axial shock up to 49,050 m/s2 pk (5,000 g pk).
Industry Applications
This accelerometer excels in fin-fan and slow rotating shaft applications where low-frequency vibration monitoring is critical. For example, in cooling tower fan systems, the 200155-16-05 detects early bearing wear and imbalance, preventing unplanned downtime. Its robust design also suits paper mill rollers and large centrifugal fans, where traditional sensors struggle with sub-10 Hz signals.
Installation & Setup Guidance
Mount the 200155-16-05 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 is 3/8-24 to 1/2-13 UNC with a 3/4 inch hex stud. Ensure the surface is clean and flat for optimal coupling. Allow 24 hours cure time after installation. Connect the SIG+ and SIG- leads with proper polarity (SIG+ positive with respect to SIG-). Use the ProTIM option Low Frequency Acceleration-to-Velocity channel type (-05) for best results.
Maintenance & Reliability
Routine inspection of the accelerometer and its cabling is recommended. The 316L stainless steel housing provides excellent corrosion resistance. The ceramic shear sensing element ensures long-term stability. Check the output bias voltage periodically; it should remain at +2.5 ± 0.23 Vdc. The hermetically sealed design (5X10-8 atm•cc/s maximum leakage) protects against moisture and contaminants, supporting 100% relative humidity environments.
Buying Guide
Before purchasing the Bently Nevada 200155-16-05, verify your system's compatibility with the 4.7 to 5.5 Vdc excitation voltage and the required mounting thread. The multiple approvals (CSA, ATEX, and IECEx) make it suitable for hazardous areas. Contact SpareTechPLC for current availability and lifecycle status. We stock genuine Bently Nevada parts and can assist with replacement options if needed.
Frequently Asked Questions
Q1: What is the frequency range of the 200155-16-05?
The accelerometer covers 1.5 to 10,000 Hz (90 to 600,000 cpm).
Q2: What mounting thread does the 200155-16-05 use?
It uses a 3/8-24 female thread, with a mounting stud option of 3/8-24 to 1/2-13 UNC.
Q3: What is the output bias voltage of this accelerometer?
The output bias voltage is +2.5 ± 0.23 Vdc.
Q4: What certifications does the 200155-16-05 have?
It has multiple approvals: CSA, ATEX, and IECEx.
Q5: What is the operating temperature range?
The accelerometer operates from -40 ºC to +105 ºC (-40 ºF to +221 ºF).
