INTRODUCTION 

The model 8911 wireless accelerometer for POC combines a  sensor, data collector, digital signal processor, and radio into one  compact, battery-operated device that measures both vibration  and temperature data. The model 8911 wireless accelerometer uses the LoRaWAN™ communication protocol, offering a simple, reliable and secure  means of expanding condition-based maintenance into plant  areas where the cost to install wired systems is prohibitive,  making data available to existing process control and information  systems.  The model 8911 incorporates a piezo-electric accelerometer  which offers a wide bandwidth to >10kHz, outstanding  measurement resolution and superior long-term stability  compared to design using MEMS solutions. The 8911 contains digital signal processing that provides an FFT  analysis of the vibration being sensed. The output data describes  the center frequency, peak value, bandwidth, and percent of the  total spectral content for the eight most significant acceleration  peaks in the vibration signal. Because of this feature, the 8911 directly provides the data most  needed to plot trends and monitor changes in the performance  and condition of factory machinery. 

SPECIFICATIONS 

 Wireless Piezoelectric Proof of Concept (POC)  Accelerometer for Condition Monitoring 

 Programmable, Customer Configurable  

 Corrosion Resistant Stainless-Steel & Polymer Housing 

 Wide Bandwdith to >10kHz 

 Exceptional Long Term Stability 

 Superior Measurement Resolution

FEATURES 

  Acceleration and temperature output   Compact design, stud mount   Up to 5-year battery life  

 Low power consumption   -20°C to +60°C  operating temperature   30kHz resonant frequency  

APPLICATIONS 

  Remote condition monitoring   Reduced installation  costs – no cables  

 Designed for harsh environments   Quick and scalable deployment 

  Cost effective monitoring  for large plants   Secure and interference   free transmission

优利威（UNIVO）专业提供各种基础传感器，包括位移、压力、液位、力、称重、扭矩、角度、倾角、水平仪、温度、温湿度、速度、气体检测传感器等；以及特殊环境应用类产品，包括氢系统应用的压力传感器、氢泄漏检测传感器、核电系统应用的位移传感器、压力、转速传感器等。欢迎来电咨询，并关注公众号：优利威。