Machine vibration monitor
December 2004
Maintenance, Test & Measurement, Calibration
IFM Efector's Octavis vibration monitor detects rolling element bearing failures and shaft unbalance conditions on critical plant equipment such as pumps, motors, compressors, fans and spindles. Octavis is permanently mounted on plant equipment to continuously monitor a machine's operating condition through vibration analysis. Octavis has the processing capability to analyse a vibration signature and to predict failures in advance by sending an alarm output signal to a PLC or relay.
The instrument incorporates a MEMS accelerometer, analog-to-digital (A/D) converter, digital signal processor (DSP) and diagnostic electronics in a compact 40 x 40 mm package. These electronic components enable the monitor to gather, process and interpret vibration data. The accelerometer monitors the acceleration value via a change in capacitance signal, while the A/D converter transforms the analog signal from the MEMS sensor to a digital signal. An integrated DSP performs mathematical calculations to convert the time domain vibration signal into a frequency domain signal by means of a Fast Fourier Transformation (FFT). The integrated DSP can process up to 32 000 calculations per second.
Configuration software is used to input application parameters such as bearing dimensions and shaft speed. These inputs allow Octavis to monitor only critical frequencies in the vibration spectrum and ignore all external noise. One Efector Octavis monitor can detect up to five different rolling elements on a machine.
Pushbutton programming includes a teach button with an integrated alarm display. The monitor generates a switching alarm when there is a large increase in amplitude for a critical frequency. The alarm display provides two switching outputs that indicate an early warning alarm and a critical alarm.
The monitor has two connectors for power and software connection. A standard micro DC connector is used to connect the monitor to a power source or output device. A PC or laptop is connected to the monitor via its RS232 connector and set-up cable. IFM Electronic is represented locally by Shorrock Automation.
For more information contact Chris Huxham, Shorrock Automation, 012 345 4449, [email protected], www.shorrock.co.za
Further reading:
Automated test and measurement
Comtest
Maintenance, Test & Measurement, Calibration
Comtest, in partnership with global brands, provides customised solutions with integrated hardware and software for efficient testing and data collection.
Read more...
Inline particle measurement
Mecosa
Maintenance, Test & Measurement, Calibration
Part of the SOPAT family, Parsum has for more than 20 years stood for the measurement of particles in a running process - without sampling and without a laboratory.
Read more...
Inline analysis measurement technology
Mecosa
Maintenance, Test & Measurement, Calibration
SOPAT develops and sells a photo-optical and image-based inline analysis measurement technology that quantitatively characterises particulate multi-phase systems. The software provides real-time analysis of particle size distribution.
Read more...
UV water treatment system
Maintenance, Test & Measurement, Calibration
bestUV is an innovative manufacturer of professional ultraviolet (UV) water treatment systems for industrial markets.
Read more...
RS PRO a key partner for planned maintenance
RS South Africa
Maintenance, Test & Measurement, Calibration
RS PRO, the own-brand of RS, offers a comprehensive selection of over 80 000 products spanning all industries and technologies.
Read more...
WearCheck leads the way in condition monitoring
Wearcheck
Maintenance, Test & Measurement, Calibration
Minimising maintenance costs of mining and power-generating machinery and maximising its operational efficiency – these goals form the foundation of the proactive/preventive maintenance services provided by the expert technicians at condition monitoring specialist, WearCheck.
Read more...
Collect data three times faster
SKF South Africa
Maintenance, Test & Measurement, Calibration
SKF has extended its renowned Microlog Analyzer family of data collection devices with the addition of the Microlog Analyzer dBX. Currently SKF’s most powerful diagnostic tool, this cutting-edge device redefines diagnostic capabilities, enabling users to take measurements three times faster than its predecessor.
Read more...
Integrated liners for the mining industry
Maintenance, Test & Measurement, Calibration
Multotec has developed a range of composite integrated mill liners in response to the needs of local and international mining clients.
Read more...
The criticality of maintenance in the water and wastewater segment
Schneider Electric South Africa
Maintenance, Test & Measurement, Calibration
In a time of water shedding, climate change and ageing infrastructure, the importance of maintenance and support in the water and wastewater segment cannot be overstated.
Read more...
How dry ice blasting is revolutionising the mining industry
Maintenance, Test & Measurement, Calibration
Dry ice blasting has emerged as a game-changing technology for the mining industry, offering a range of advantages that are reshaping traditional cleaning methods.
Read more...
printer friendly version