Product Overview
When monitoring slow rotating shafts or fin-fan applications, the Bently Nevada 200155-22-05 Low Frequency Trendmaster Pro accelerometer delivers reliable vibration data. This sensor is engineered for low-frequency measurements, making it ideal for machinery that operates below typical monitoring thresholds. Its robust design ensures accurate readings in demanding industrial environments.
Key Technical Specifications
The 200155-22-05 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), referenced to 80 Hz. The mounted resonant frequency exceeds 20 kHz, ensuring reliable performance across the intended bandwidth. Amplitude linearity is within ±2% (1 to 10 g pk), and transverse sensitivity is ≤7%. The accelerometer requires an excitation voltage of 4.7 to 5.5 Vdc and has a quiescent current of <800 µA. Output bias voltage is +2.5 ± 0.23 Vdc.
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 fans, the 200155-22-05 detects subtle changes in bearing condition or imbalance that could lead to unplanned downtime. Its low-frequency capability also suits paper machine rolls and other slow-speed rotating equipment.
Installation & Setup Guidance
Proper mounting is essential for accurate readings. The 200155-22-05 uses a 3/8-24 female mounting thread and should be torqued to 2.7 to 6.8 N·m (2 to 5 ft·lbf). Ensure the mounting surface is clean and flat. Allow 24 hours cure time if adhesive mounting is used. The sensor operates in temperatures from -40 °C to +105 °C (-40 °F to +221 °F).
Maintenance & Reliability
Routine inspection of the mounting integrity and cable connections helps maintain reliable performance. The hermetically sealed design (5×10⁻⁸ atm·cc/s maximum leak rate) protects against moisture and contaminants. With 316L stainless steel housing and ceramic shear sensing element, this accelerometer withstands harsh conditions, reducing total cost of ownership.
Compatibility & Integration
The 200155-22-05 works with Bently Nevada ProTIM option Low Frequency Acceleration-to-Velocity channel type (-05). It is compatible with Bently Nevada monitoring systems that accept accelerometer inputs. Multiple approvals (CSA, ATEX, and IECEx) ensure suitability for hazardous area installations.
Selection Guide & Purchasing Advice
Before purchasing, verify that your monitoring system supports the 200155-22-05's sensitivity and excitation voltage. The mounting stud option (21 = 3/8-24 outer diameter to M6x1 inner diameter, 1-3/8 inch hex plate stud) must match your installation. Contact SpareTechPLC for current availability and lifecycle status.
Frequently Asked Questions
Q1: What is the sensitivity of the 200155-22-05?
A: Sensitivity is 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, with ±12% tolerance.
Q2: What temperature range does this accelerometer support?
A: It operates from -40 °C to +105 °C (-40 °F to +221 °F).
Q3: Is the 200155-22-05 suitable for hazardous locations?
A: Yes, it has multiple approvals including CSA, ATEX, and IECEx.
Q4: What mounting thread does it use?
A: It uses a 3/8-24 female mounting thread.
Q5: What is the measurement range of this accelerometer?
A: The measurement range is ±196 m/s² (±20 g).
