Product Overview
When monitoring slow-rotating shafts in fin-fan applications, the Bently Nevada 200155-11-05 Low Frequency Trendmaster Pro accelerometer delivers reliable vibration data. This sensor is engineered for low-frequency measurements, making it a trusted choice for industrial asset protection.
Technical Specifications Breakdown
The 200155-11-05 offers key performance metrics derived from its design:
- Sensitivity: 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, with ±12% tolerance, ensuring consistent signal output for accurate trend analysis.
- Measurement Range: ±196 m/s² (±20 g) peak, covering a wide amplitude spectrum for typical machinery vibrations.
- Frequency Range: 1.5 to 10,000 Hz (90 to 600,000 cpm), referenced to 80 Hz with ±10% tolerance, optimized for low-speed equipment.
- Excitation Voltage: 4.7 to 5.5 Vdc, compatible with standard industrial power supplies.
- Output Bias Voltage: +2.5 ± 0.23 Vdc, providing a stable baseline for signal processing.
- Temperature Range: -40 ºC to +105 ºC (-40 ºF to +221 ºF), suitable for harsh environments.
- Weight: 58 g (2.0 oz), typical, lightweight for easy mounting.
- Mounting Thread: 3/8-24 female, with a mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf).
- Housing Material: 316L stainless steel, offering corrosion resistance.
These specifications confirm the 200155-11-05 is purpose-built for low-frequency vibration monitoring.
Industry Applications
The 200155-11-05 excels in monitoring fin-fan coolers and slow-rotating shafts, where traditional accelerometers may struggle with low-frequency response. Its 1.5 Hz lower frequency limit captures critical data from large-diameter, slow-speed rotating equipment. For example, in petrochemical plants, this accelerometer helps detect early bearing wear in cooling fans, reducing unplanned downtime.
Installation & Setup Guidance
Proper mounting is essential for accurate readings. Use the 3/8-24 female thread with a mounting torque between 2.7 and 6.8 N•m (2 to 5 ft•lbf). Ensure the mounting surface is clean and flat to achieve optimal coupling. The accelerometer is used with the ProTIM Option Low Frequency Acceleration-to-Velocity channel type (-05) for signal conditioning. Allow a cure time of 24 hours after installation if adhesive mounting is used.
Maintenance & Reliability
The hermetically sealed design (5×10⁻⁸ atm•cc/s maximum leak rate) and 316L stainless steel housing protect against moisture and contaminants. With 100% relative humidity tolerance (condensing, non-submerged), the 200155-11-05 is built for long-term reliability in challenging industrial environments. Regular inspection of the cable and connector ensures signal integrity.
Compatibility & Integration
This accelerometer integrates with Bently Nevada monitoring systems that support the ProTIM option for low-frequency acceleration-to-velocity conversion. It is compatible with standard 4.7 to 5.5 Vdc excitation sources. The multiple approvals (CSA, ATEX, and IECEx) ensure compliance in hazardous area installations.
Buying Guide & Purchasing Advice
Before purchasing the 200155-11-05, verify your system's excitation voltage and channel type compatibility. The mounting stud option (11 = 3/8-24 to 1-1/4 NPT, 1-3/4 inch hex stud) should match your installation requirements. SpareTechPLC offers this accelerometer with fast shipping and expert support. Contact us to confirm availability and lifecycle status.
Frequently Asked Questions
Q: What is the sensitivity of the 200155-11-05?
A: The sensitivity is 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, with ±12% tolerance.
Q: What is the temperature range for this accelerometer?
A: It operates from -40 ºC to +105 ºC (-40 ºF to +221 ºF).
Q: What mounting thread does the 200155-11-05 use?
A: It uses a 3/8-24 female thread with a recommended mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf).
Q: Is the 200155-11-05 suitable for hazardous areas?
A: Yes, it has multiple approvals including CSA, ATEX, and IECEx.
Q: What is the weight of this accelerometer?
A: The typical weight is 58 g (2.0 oz).
