Product Overview
The Bently Nevada 200155-23-05 is a low-frequency Trendmaster Pro accelerometer designed for industrial automation applications. This compact, hermetically sealed sensor delivers precise vibration measurements for slow-rotating machinery such as fin-fan coolers and low-speed shafts. With multiple approvals (CSA, ATEX, and IECEx), the 200155-23-05 ensures safe operation in demanding environments.
Technical Specifications
All specifications are measured at +25°C (+77°F) unless otherwise noted. The Bently Nevada 200155-23-05 provides reliable performance across a wide range of conditions.
| Parameter |
Value |
| Sensitivity @ 80 Hz (± 12%) |
10.2 mV/(m/s²) (100 mV/g) |
| Measurement Range (m/s²) |
±196 (±20 g) |
| Frequency Range (Hz) |
1.5 to 10,000 (90 to 600,000 cpm) |
| Mounted Resonant Frequency |
>20 kHz (>1200 kcpm) |
| Amplitude Linearity (1 to 10g pk) |
±2% |
| Transverse Sensitivity |
≤7% |
| Settling Time (ms) |
≤2000 |
| 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), max |
| Relative Humidity |
100% 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 Material |
316L stainless steel |
Key Features & Benefits
- Low-frequency response ideal for slow-rotating equipment
- Hermetic sealing protects against moisture and contamination
- 316L stainless steel construction ensures durability in harsh environments
- Multiple approvals (CSA, ATEX, IECEx) expand installation flexibility
- Mounting stud option 23: 3/8-24 to M16x2.0 with 1-3/8 inch hex plate stud simplifies installation
Industry Applications
The Bently Nevada 200155-23-05 excels in vibration monitoring for assets like fin-fan coolers and slow-rotating shafts. In a refinery, you can mount this accelerometer on a fin-fan gearbox to detect early bearing wear. For a paper mill, install the 200155-23-05 on a calendar roll to monitor low-speed runout. This sensor also suits water treatment plants where slow-speed mixers require precise vibration tracking.
Installation & Setup Guidance
Mount the Bently Nevada 200155-23-05 directly to a flat, clean surface using the 3/8-24 female thread. Apply the recommended mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf) to ensure proper coupling. Connect the sensor to a compatible ProTIM option with low-frequency acceleration-to-velocity channel type (-05). Verify the output bias voltage is +2.5 ± 0.23 Vdc before finalizing the installation.
Maintenance & Reliability
The hermetic sealing and 316L stainless steel housing make the 200155-23-05 highly resistant to environmental stress. To maintain reliability, periodically inspect the mounting stud for loosening and check the cable for wear. The sensor's settling time of ≤2000 ms ensures quick stabilization after power-up, reducing downtime during routine checks. Regular calibration every 12 months preserves measurement accuracy.
Selection Guide & Purchasing Advice
Before ordering, verify the mounting thread compatibility and the required approvals for your site. The 200155-23-05 comes with multiple approvals (CSA, ATEX, IECEx), making it suitable for global installations. When purchasing from PLC Source PRO, confirm the exact part number to ensure you receive the correct model. For assistance, contact our technical team to match the accelerometer to your application.