Product Overview
The Bently Nevada 200155-14-05 is a Low Frequency Trendmaster Pro Accelerometer designed for industrial automation applications requiring precise vibration measurement on slow-rotating equipment. This sensor excels in monitoring fin-fan and slow-rotating shafts, providing reliable data for condition monitoring and predictive maintenance. With a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz, it delivers accurate readings essential for detecting early machinery faults.
Built in the U.S.A., the 200155-14-05 features a ceramic shear sensing element and a 316L stainless steel housing, ensuring durability in harsh environments. Its multiple approvals (CSA, ATEX, and IECEx) make it suitable for hazardous areas, and it operates across a wide temperature range of -40°C to +105°C. This accelerometer is an ideal choice for industries where downtime is costly and reliability is paramount.
Technical Specifications
Every specification below is verified and directly from the manufacturer's data, ensuring you receive accurate and dependable performance parameters.
| Parameter |
Value |
| Sensitivity @ 80 Hz (± 12%) |
10.2 mV/(m/s²) (100 mV/g) |
| Measurement Range (Accelerometer 200155) |
±196 m/s² (±20 g) |
| Frequency Range Referenced to 80 Hz (±10%) |
1.5 to 10,000 Hz (90 to 600,000 cpm) |
| Mounted Resonant Frequency |
>20 kHz (>1200 kcpm) |
| Amplitude Linearity (1 to 10 g pk) |
±2% |
| Transverse Sensitivity |
≤7% |
| Settling Time (Within 5% of Bias) |
≤2000 ms |
| Excitation Voltage |
4.7 to 5.5 Vdc |
| Quiescent Current |
<800 µA |
| Output Bias Voltage |
+2.5 ± 0.23 Vdc |
| Axial Shock Limit |
49,050 m/s² pk (5,000 g pk) |
| Temperature Range |
-40°C to +105°C (-40°F to +221°F) |
| Sealing (Hermetic) |
5×10⁻⁸ atm·cc/s max |
| Relative Humidity |
100% condensing, non-submerged |
| Size (Hex × Height) |
17.5 mm × 45.7 mm (11/16 in × 1.8 in) |
| Weight |
58 g (2.0 oz) typical |
| Mounting Thread |
3/8-24 female |
| Mounting Torque |
2.7 to 6.8 N·m (2 to 5 ft·lbf) |
| Sensing Element |
Ceramic |
| Sensing Geometry |
Shear |
| Housing and Connector Material |
316L stainless steel |
Real-World Applications
The Bently Nevada 200155-14-05 is engineered for low-frequency vibration monitoring, making it indispensable in several industrial scenarios:
-
Fin-Fan Coolers: In petrochemical and power plants, fin-fan coolers operate at low speeds. The accelerometer's frequency range of 1.5 to 10,000 Hz captures subtle vibrations, enabling early detection of bearing wear or imbalance.
-
Slow-Rotating Shafts: For machinery like kilns or mixers with rotational speeds below 600 RPM, this sensor provides reliable data, helping to prevent catastrophic failures and unplanned downtime.
-
Condition Monitoring Systems: When integrated with the ProTIM option (low-frequency acceleration-to-velocity channel type -05), it delivers accurate velocity measurements, essential for trending and predictive maintenance programs.
Installation & Setup Guidance
Proper installation ensures accurate readings and long service life. Follow these guidelines for the 200155-14-05:
-
Mounting: Use the 3/8-24 female thread. Apply the specified mounting torque of 2.7 to 6.8 N·m (2 to 5 ft·lbf). Over-tightening can distort the housing and affect performance.
-
Surface Preparation: Ensure the mounting surface is flat, clean, and free of paint or debris. A smooth surface maximizes contact and improves frequency response.
-
Orientation: The sensor is sensitive to acceleration from base to connector. Position it so that the primary vibration axis aligns with this direction for optimal signal output.
-
Cable Routing: Secure cables to prevent vibration-induced movement, which can generate noise. Use appropriate cable clamps and avoid sharp bends.
Maintenance & Reliability
Regular maintenance of the Bently Nevada 200155-14-05 ensures consistent performance and extends its operational life. Because this sensor is designed for continuous duty in demanding environments, a simple inspection routine can prevent unexpected failures:
-
Periodic Checks: Inspect the mounting bolt torque every six months. Vibration can loosen connections over time.
-
Connector Integrity: Verify that the connector remains clean and corrosion-free. The hermetic sealing (5×10⁻⁸ atm·cc/s) protects internal components, but external connections need attention.
-
Environmental Resistance: With a temperature range of -40°C to +105°C and 100% condensing humidity tolerance, this accelerometer withstands harsh conditions. However, avoid prolonged submersion.
-
Calibration: Recalibrate annually or per site standards to maintain the ±12% sensitivity accuracy. This is a cost-effective way to avoid false readings that lead to unnecessary downtime.
Selection Guide & Purchasing Advice
When selecting the 200155-14-05, verify the mounting stud option (14 3/8-24 to 3/8-24 UNF, 3/4 inch hex stud) matches your installation requirements. Confirm the approvals (CSA, ATEX, and IECEx) align with your area classification. For seamless integration, ensure your monitoring system supports the excitation voltage of 4.7 to 5.5 Vdc and accepts the output bias voltage of +2.5 Vdc.
PLC Source PRO offers this genuine Bently Nevada 200155-14-05 accelerometer with fast shipping and competitive pricing. Our team can assist with technical questions to ensure you order the correct part for your application.