Product Overview
When slow-rotating shafts and fin-fan cooling towers demand precise vibration monitoring, the Bently Nevada 200155-02-05 Low Frequency Trendmaster Pro Accelerometer delivers reliable data. This industrial automation module is engineered for low-frequency applications, providing accurate acceleration measurements from 1.5 Hz to 10,000 Hz. With its ceramic shear sensing element and 316L stainless steel housing, the 200155-02-05 withstands harsh environments while maintaining ±2% amplitude linearity.
Technical Specifications
All specifications are measured at +25°C (+77°F) unless otherwise noted. The 200155-02-05 offers robust performance for condition monitoring.
| Parameter |
Value |
| Sensitivity @ 80 Hz (±12%) |
10.2 mV/(m/s²) (100 mV/g) |
| Measurement Range (Acceleration) |
±196 m/s² (±20 g) |
| Frequency Range (referenced to 80 Hz) |
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 (Operating) |
-40 °C to +105 °C (-40 °F to +221 °F) |
| Sealing (Hermetic) |
5×10⁻⁸ atm•cc/s (3.1×10⁻⁹ atm•in³/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 Material |
316L stainless steel |
Applications
The Bently Nevada 200155-02-05 is specifically designed for fin-fan coolers and slow-rotating shafts where standard accelerometers miss crucial low-frequency vibrations. It pairs with the ProTIM option for low-frequency acceleration-to-velocity channel type (-05), making it ideal for paper mills, petrochemical plants, and power generation facilities. Its wide frequency range and high sensitivity ensure early detection of bearing wear and imbalance, reducing unplanned downtime.
Installation & Setup
Proper mounting is critical for accurate readings. The 200155-02-05 features a 3/8-24 female mounting thread. Use the included stud option (02: 3/8-24 to 3/8-24 UNF, 1-3/8 inch hex plate stud) for secure attachment. Apply the recommended mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf) to ensure optimal coupling. Connect the excitation voltage (4.7–5.5 Vdc) and verify output bias voltage within +2.5 ± 0.23 Vdc. Allow settling time up to 2000 ms before taking measurements.
Maintenance & Reliability
With a hermetically sealed design (5×10⁻⁸ atm•cc/s max) and 316L stainless steel construction, the 200155-02-05 withstands corrosive and humid environments. The ceramic shear sensing element provides long-term stability. Regularly inspect the mounting stud for loosening due to vibration. The accelerometer operates across -40 °C to +105 °C, making it suitable for extreme industrial conditions. Its robust design minimizes maintenance needs, contributing to lower lifecycle costs.
Buying Guide
Before purchasing, verify that your system supports the ProTIM option for low-frequency acceleration-to-velocity channel type (-05). This Bently Nevada 200155-02-05 comes with multiple approvals (CSA, ATEX, and IECEx) for hazardous area use. PLC Source PRO ensures genuine parts and fast delivery for your automation spares. Contact our team for availability and pricing.