Product Overview
When vibration monitoring in general industrial applications demands reliable data, the Bently Nevada 200150-21-05 General Purpose Trendmaster 2000 or Trendmaster Pro Accelerometer delivers precise measurements. This accelerometer provides a sensitivity of 10.2 mV/(m/s2) (100 mV/g) at 80 Hz, ensuring accurate vibration detection across a frequency range of 10 to 1000 Hz (600 to 60,000 cpm). Designed for continuous operation in harsh environments, it withstands temperatures from -40 ºC to +105 ºC and offers hermetic sealing for moisture protection.
Technical Specifications Breakdown
The 200150-21-05 features a measurement range of ±245 m/s2 (±25 g), making it suitable for monitoring moderate to high vibration levels. Its mounted resonant frequency exceeds 20 kHz, reducing the risk of resonance-induced errors. Amplitude linearity remains within ±2% for 1 to 10 g pk signals, ensuring consistent output across the operating range. The accelerometer settles within 300 ms (within 5% of bias), enabling rapid response after power-up or transient events. Output bias voltage is +2.5 ± 0.23 Vdc, and quiescent current stays below 800 µA, minimizing power consumption.
Industry Applications
In rotating machinery monitoring, the 200150-21-05 captures vibration data from pumps, fans, and compressors. Its ceramic shear sensing element and 316L stainless steel housing provide durability in corrosive environments. For general purpose trend monitoring, this accelerometer integrates with ProTIM systems using the Standard Acceleration-to-Velocity channel type (-01). The multiple approvals (CSA, ATEX, and IECEx) allow deployment in hazardous areas without additional certification.
Installation & Setup Guidance
Mount the accelerometer using the 3/8-24 female thread with a mounting torque of 2.7 to 6.8 N•m (2 to 5 ft•lbf). The stud option (21) includes a 3/8-24 outer diameter to M6x1 inner diameter hex plate stud. Apply the recommended cure time of 24 hours after mounting to ensure proper adhesion. Connect SIG+ and SIG- wires with correct polarity: SIG+ positive with respect to SIG- for acceleration from base to connector. Excitation voltage ranges from 4.7 to 5.5 Vdc.
Maintenance & Reliability
Inspect the accelerometer periodically for physical damage or corrosion, especially in condensing humidity environments. The hermetic seal (5X10-8 atm•cc/s maximum) prevents moisture ingress, but verify cable integrity and connector tightness during routine checks. Temperature limits (-55 ºC to +121 ºC storage) ensure long-term reliability when stored properly. Replace the unit if output bias voltage drifts beyond ±0.23 Vdc or if sensitivity deviates more than ±12% at 80 Hz.
Selection Guide & Purchasing Advice
Before ordering the 200150-21-05, confirm your application requires a General Purpose Trendmaster 2000 or Trendmaster Pro Accelerometer. Verify the mounting thread compatibility (3/8-24 female) and ensure the excitation voltage matches your system (4.7 to 5.5 Vdc). For hazardous area installations, the multiple approvals (CSA, ATEX, and IECEx) cover most global requirements. Contact SpareTechPLC for current availability and lifecycle status before placing an order.
Frequently Asked Questions
Q: What is the sensitivity of the 200150-21-05?
A: The sensitivity is 10.2 mV/(m/s2) (100 mV/g) at 80 Hz, with a tolerance of ±12%.
Q: What is the operating temperature range?
A: The accelerometer operates from -40 ºC to +105 ºC (-40 ºF to +221 ºF).
Q: What approvals does the 200150-21-05 have?
A: It carries multiple approvals: CSA, ATEX, and IECEx.
Q: What is the mounting thread size?
A: The mounting thread is 3/8-24 female.
Q: What is the weight of this accelerometer?
A: The typical weight is 58 g (2.0 oz).
