Product Overview
The Bently Nevada 200155-04-05 is a Low Frequency Trendmaster Pro Accelerometer designed for continuous vibration monitoring of slow-rotating equipment such as fin-fan coolers and slow-speed shafts. This industrial automation module delivers precise acceleration measurements in demanding environments, helping you detect early mechanical faults before they escalate.
With a sensitivity of 10.2 mV/(m/s²) at 80 Hz and a measurement range of ±196 m/s² (±20 g), the 200155-04-05 provides accurate data for predictive maintenance programs. Its hermetically sealed 316L stainless steel housing ensures long-term reliability even in harsh conditions.
Technical Specifications
All specifications are at +25°C (+77°F) unless otherwise stated.
| 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 (Operating) |
-40 ºC to +105 ºC (-40 ºF to +221 ºF) |
| Sealing (Hermetic) |
5×10⁻⁸ atm•cc/s (3.1×10⁻⁹ atm•in³/s), maximum |
| Relative Humidity |
100% relative, 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 |
| Approvals |
CSA, ATEX, and IECEx |
| Mounting Stud Option |
3/8-24 to 1/4 NPT, 1-3/8 inch hex plate stud |
Industry Applications
The Bently Nevada 200155-04-05 excels in monitoring fin-fan coolers and slow-rotating shafts where standard accelerometers miss low-frequency vibrations. Its wide frequency range from 1.5 Hz ensures you capture critical data from these applications.
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Fin-Fan Coolers: Detect bearing wear and imbalance in air-cooled heat exchangers.
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Slow-Speed Rotating Equipment: Monitor shafts rotating below 600 RPM with confidence.
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Predictive Maintenance Programs: Integrate with ProTIM option low-frequency acceleration-to-velocity channel type (-05) for seamless data acquisition.
Installation & Setup Guidance
Proper mounting is essential for accurate readings. Use the 3/8-24 female thread with a mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf). Ensure the mounting surface is clean and flat. For best results, mount the accelerometer directly onto the bearing housing or machine casing, avoiding painted or coated surfaces.
Connect the sensor to a compatible ProTIM channel configured for low-frequency acceleration-to-velocity. Verify the excitation voltage is within 4.7 to 5.5 Vdc and the output bias voltage is +2.5 ± 0.23 Vdc. After installation, allow the sensor to settle for at least 2000 ms before taking measurements.
Maintenance & Reliability
The hermetically sealed design (5×10⁻⁸ atm•cc/s maximum) protects internal components from moisture and contamination. With an operating temperature range of -40 ºC to +105 ºC, the 200155-04-05 performs reliably in extreme environments.
Routine checks should include verifying the mounting torque and inspecting the cable for damage. The 316L stainless steel housing resists corrosion, extending service life and reducing replacement frequency—a key cost benefit for continuous operations.
Selection Guide & Purchasing Advice
When ordering, confirm the mounting stud option (04) and approvals (05) match your requirements. The 04 option provides a 3/8-24 to 1/4 NPT adapter with a 1-3/8 inch hex plate stud, ideal for retrofit installations. The 05 option includes multiple approvals (CSA, ATEX, IECEx) for global use.
For genuine Bently Nevada 200155-04-05 accelerometers with fast shipping and competitive pricing, PLC Source PRO is your trusted industrial automation parts supplier.