Product Introduction
When slow rotating shafts in fin-fan applications cause undetected vibration issues, the Bently Nevada 200155-06-05 Low Frequency Trendmaster Pro accelerometer delivers precise monitoring. This sensor, manufactured in the U.S.A., is designed for low-frequency acceleration-to-velocity channel types (-05). It provides accurate data for predictive maintenance and helps prevent unexpected downtime.
Technical Specifications Breakdown
The 200155-06-05 offers key performance metrics essential for industrial vibration analysis. At 80 Hz, sensitivity is 10.2 mV/(m/s²) (100 mV/g) with ±12% tolerance. The measurement range covers ±196 m/s² (±20 g) for acceleration and 24.5 mm/s² (2.5 mg) for low-level signals. Frequency response spans 1.5 to 10,000 Hz (90 to 600,000 cpm) referenced to 80 Hz with ±10% accuracy. Mounted resonant frequency exceeds 20 kHz (>1200 kcpm). Amplitude linearity holds within ±2% (1 to 10 g pk), and transverse sensitivity is ≤7%. Settling time reaches within 5% of bias in ≤2000 ms. Excitation voltage ranges from 4.7 to 5.5 Vdc, with quiescent current under 800 µA and output bias voltage at +2.5 ± 0.23 Vdc. Polarity indicates SIG+ positive with respect to SIG- when acceleration moves from base to connector.
Industry Applications
In fin-fan applications, the 200155-06-05 monitors slow rotating shafts that generate low-frequency vibrations. Its frequency range down to 1.5 Hz captures subtle changes often missed by standard accelerometers. For example, in cooling tower fan systems, this sensor detects bearing wear or imbalance early, allowing maintenance teams to schedule repairs before catastrophic failure. The accelerometer also suits other slow-speed rotating machinery where precise low-frequency data is critical for asset health.
Installation & Setup Guidance
Mount the 200155-06-05 using the 3/8-24 female thread. The mounting stud option 06 provides a 3/8-24 to 1/4 NPT adapter with a 3/4 inch hex stud. Apply mounting torque between 2.7 to 6.8 N•m (2 to 5 ft•lbf). Ensure the sensor is securely fastened to the machine surface for accurate readings. Connect the excitation voltage within 4.7 to 5.5 Vdc, and verify output bias voltage at +2.5 ± 0.23 Vdc after installation. Allow 24 hours cure time for adhesive mounting if used.
Maintenance & Reliability
The 200155-06-05 operates in harsh environments with a temperature range of -40 ºC to +105 ºC (-40 ºF to +221 ºF). Hermetic sealing at 5X10⁻⁸ atm•cc/s (3.1X10⁻⁹ atm•in³/s) maximum protects against moisture. It handles 100% relative humidity, condensing, non-submerged conditions. Axial shock limit is 49,050 m/s² pk (5,000 g pk). The ceramic sensing element with shear geometry ensures long-term stability. Housing and connector material is 316L stainless steel for corrosion resistance. Regular inspection of cable connections and mounting integrity helps maintain reliable performance. The sensor weighs 58 g (2.0 oz) typical, with size 17.5 mm x 45.7 mm (11/16 in x 1.8 in).
Selection Guide & Purchasing Advice
Before purchasing the 200155-06-05, verify your application requires low-frequency monitoring for slow rotating shafts. Confirm compatibility with ProTIM option Low Frequency Acceleration-to-Velocity channel type (-05). The approvals option 05 includes multiple approvals (CSA, ATEX, and IECEx). Contact SpareTechPLC for current availability and to confirm lifecycle status. SpareTechPLC supplies genuine Bently Nevada parts with reliable service.
Frequently Asked Questions
Q1: What is the sensitivity of the 200155-06-05 at 80 Hz?
A: The sensitivity is 10.2 mV/(m/s²) (100 mV/g) with ±12% tolerance.
Q2: What is the frequency range of this accelerometer?
A: The frequency range is 1.5 to 10,000 Hz (90 to 600,000 cpm) referenced to 80 Hz with ±10%.
Q3: What mounting thread does the 200155-06-05 use?
A: It uses a 3/8-24 female thread. The mounting stud option 06 provides a 3/8-24 to 1/4 NPT adapter.
Q4: What is the operating temperature range?
A: The temperature range is -40 ºC to +105 ºC (-40 ºF to +221 ºF).
Q5: What approvals does the 200155-06-05 have?
A: It has multiple approvals including CSA, ATEX, and IECEx.
