Product Overview
The Bently Nevada 200155-05-CN is a low-frequency Trendmaster Pro accelerometer engineered for reliable vibration monitoring on slow-rotating machinery. This industrial automation module delivers precise acceleration measurements in demanding environments, making it a critical component for predictive maintenance programs.
With a sensitivity of 10.2 mV/(m/s²) (100 mV/g) at 80 Hz and a measurement range of ±196 m/s² (±20 g), the 200155-05-CN captures subtle vibration signatures essential for early fault detection. Its frequency range extends from 1.5 to 10,000 Hz (90 to 600,000 cpm), covering the operational spectrum of fin-fan coolers, slow-speed shafts, and similar equipment.
Technical Specifications
All specifications measured at +25°C (+77°F) unless otherwise noted.
| Parameter |
Value |
| Sensitivity @ 80 Hz (±12%) |
10.2 mV/(m/s²) (100 mV/g) |
| Measurement Range |
±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 ºC to +105 ºC (-40 ºF to +221 ºF) |
| Sealing (Hermetic) |
5X10⁻⁸ atm•cc/s (3.1X10⁻⁹ atm•in³/s), maximum |
| Relative Humidity |
100% relative, condensing, non-submerged |
| Size (Hex x Height) |
17.5 mm x 45.7 mm (11/16 in x 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, shear geometry |
| Housing and Connector Material |
316L stainless steel |
This Bently Nevada 200155-05-CN includes the -05 mounting stud option (3/8-24 to 1/4-28 UNF, 1-3/8 inch hex plate stud) and is approved for country-specific use (CN). It is designed for use with the ProTIM option for low-frequency acceleration-to-velocity channel type (-05).
Industry Applications
The Bently Nevada 200155-05-CN excels in monitoring fin-fan coolers and slow rotating shafts, where low-frequency vibrations are critical to equipment health. In petrochemical plants, fin-fan heat exchangers operate at speeds that demand a sensor with high sensitivity at low frequencies—exactly what this accelerometer provides.
For paper mills and steel production lines, slow-speed rollers and drives benefit from the 200155-05-CN's ability to detect early bearing wear and imbalance. The wide frequency range ensures both low-speed and higher-speed machinery can be monitored with a single sensor.
In wind energy, where main shafts rotate slowly, this accelerometer helps operators schedule maintenance proactively, reducing unplanned downtime and extending asset life.
Installation & Setup Guidance
Proper mounting is essential for accurate readings. The 200155-05-CN features a 3/8-24 female thread. Use the provided -05 mounting stud to adapt to a 1/4-28 UNF mounting point. Apply the recommended mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf) to ensure a rigid connection and avoid signal distortion.
Before installation, clean the mounting surface to remove dirt or grease. A flat, machined surface maximizes the transfer of vibration. Route the cable away from high-temperature surfaces and sharp edges to protect the signal integrity.
After mounting, allow the sensor to settle for at least 2000 ms before taking measurements. Verify the excitation voltage is within 4.7 to 5.5 Vdc and that the quiescent current is below 800 µA to confirm proper operation.
Maintenance & Reliability
The 200155-05-CN is built for longevity with a hermetically sealed design (5X10⁻⁸ atm•cc/s maximum leak rate) and a 316L stainless steel housing. This construction withstands 100% condensing humidity and temperatures from -40 ºC to +105 ºC, making it suitable for harsh industrial environments.
Periodically inspect the mounting stud for loosening due to vibration. Check the cable for wear or damage. Re-torque the sensor to the recommended value if necessary. With proper care, this accelerometer provides years of reliable service, reducing total cost of ownership through fewer replacements and less downtime.
Selection Guide & Purchasing Advice
When selecting the Bently Nevada 200155-05-CN, verify your system's compatibility with the acceleration-to-velocity channel type (-05) and the ProTIM option. Confirm the mounting thread requirements—the -05 stud adapts to 1/4-28 UNF, which is common in many industrial machines.
Choose the 200155-05-CN if your application involves low-frequency vibration monitoring, especially for fin-fan or slow rotating equipment. For other sensor configurations, consult your system documentation or contact a specialist.
PLC Source PRO offers genuine Bently Nevada 200155-05-CN accelerometers with fast worldwide shipping. Our team can assist with technical questions and ensure you receive the correct part for your predictive maintenance program.