200150-09-05 is a Bently Nevada general purpose seismic transducer featuring a 3/4 NPT mounting stud and multiple approvals (CSA, ATEX, IECEx). Fully compatible with Trendmaster ProTIMs and Trendmaster 2000 systems, this hermetically sealed 316L stainless steel unit delivers stable machinery vibration monitoring and reliable performance in harsh industrial environments.
Theory of Operation
The 200150-09-05 accelerometer contains an internal piezoelectric ceramic sensing device arranged in a shear geometry. When the machinery undergoes vibration, the sensing element is subjected to motion and generates an electrical charge. The internal electronics of the accelerometer then convert this charge into a differential voltage signal. This output signal is directly proportional to the dynamic acceleration occurring parallel to the sensitive axis of the transducer.
System Compatibility and Replacement Models
System Compatibility:
- Trendmaster ProTIMs (Standard Acceleration-to-Velocity channel type, -01 option)
- Trendmaster 2000 systems
- 200100 Dual Acceleration-to-Velocity flexiTIM Module
- 89130-01 Acceleration-to-Velocity TIM (Transducer Interface Module)
- 1900/25 and 1900/27 Vibration Monitors
Alternative/Alternative Replacement Models:
- 200155-09-05 (Low Frequency Version)
- 200157-09-05 (Acceleration Enveloping Version)
Differences from Alternative Models:
- 200150-09-05: Designed for general industrial applications. It operates in a standard frequency range of 10 Hz to 1,000 Hz, features a fast settling time of ≤300 ms, and has a lower broadband electrical noise floor (14.7 mm/s²).
- 200155-09-05: Tailored for slow rotating equipment (like Fin-Fans). It extends down to a low frequency of 2.0 Hz up to 10,000 Hz, but has a significantly longer settling time (≤2,000 ms) and higher electrical noise (24.5 mm/s²).
- 200157-09-05: Specifically engineered for roller element bearings and detecting cavitation effects. It operates across 10 Hz to 10,000 Hz and must only be used if the application specifically requires acceleration enveloping.
Ordering Information Table
|
Model Number Component |
Option Code |
Description |
|
Base Model |
200150 |
General Purpose Trendmaster 2000 or Trendmaster Pro Accelerometer |
|
A: Mounting Stud Option |
09 |
3/8-24 to 3/4 NPT, 1-1/4 inch hex stud |
|
B: Approvals Option |
05 |
Multiple Approvals (CSA, ATEX, and IECEx) |
Installation & Troubleshooting FAQ
Q1: What are the installation torque requirements and dimensions for the 200150-09-05 mounting stud?
A: The 09 option indicates a 3/8-24 to 3/4 NPT mounting stud with a 1-1/4 inch hex plate and a stud length of 23.2 mm (0.915 in). During field installation, it must be tightened onto the machine casing or bearing housing using a torque wrench to a value between 16.9 to 22.6 N·m (150 to 200 in·lbf). Over-tightening or loose mounting will degrade the frequency response and lead to false vibration readings.
Q2: Can this accelerometer model be deployed directly into Zone 0 hazardous environments without a safety barrier?
A: Yes. The -05 suffix provides multiple international hazardous area approvals (CSA, ATEX, and IECEx) for intrinsically safe installations (Ex ia IIC T4 Ga / Class I, Div 1). The 20015x series can be installed in a Class I, Zone 0 application without a traditional safety barrier if it is connected and used alongside a wireless Transducer Interface Module (wSIM).
Q3: Why am I seeing reading errors or missing low-speed vibration data with this sensor?
A: The 200150 baseline model is high-pass filtered to attenuate signals below 10 Hz (600 cpm) to prioritize general-purpose industrial malfunctions like unbalance or misalignment. If your machinery operates at low shaft rotation speeds requiring monitoring below 10 Hz, the 200150 will deliver faulty or insufficient data. You should replace it with the 200155 low-frequency sensor variant.
Accessories
| Part Number | Description |
| 164985 | 200150, 200155, and 200157 Accelerometers User Guide. |
| 162411 | Trendmaster System User Guide |
| 149831 | Trendmaster Dynamic Scanning Module datasheet. |
| 163662 | 200200 ProTIM-R Module datasheet. |
| 163663 | 200250 ProTIM-C Module datasheet. |
| 126709 | Trendmaster 2000 for Windows Installation Guide. |
| 141574-01 | 200100 Acceleration-to-Velocity flexiTIM Module datasheet. |
| 137230 | flexiTIM Operation Manual. |
| 190125 | 1900/25 Vibration Monitor User Guide |
| 141485 | 1900/25 Vibration Monitor datasheet. |
| 190127 | 1900/27 Vibration Monitor User Guide |
| 141486 | 1900/27 Vibration Monitor datasheet. |
| 141556 | 89130-01 and 89546-01 Accel-to-Velocity Transducer Interface Module datasheet. |
| 142485-01 | Housing cable adapter. |
| 141887-01 | Conduit cable adaptor, single. |
| 141887-02 | Conduit cable adapter, double. |




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