Condmaster Ruby Module HD ENV
The MOD199 HD ENV is an ideal complement to conventional vibration techniques. Capable of detecting at a very early stage such machine problems which are generally difficult to find in good time with non-enveloping techniques – for example bearing damages and gear damage - the method utilizes cleverly engineered algorithms for digital signal processing to obtain optimal data for trending purposes. Signals buried in machine noise are revealed through high definition digital enveloping, extracting and enhancing the signals of interest from the overall machinery vibration signal while preserving the true highest peaks.
Input Data
The setup of HD ENV measurements in Condmaster Ruby is straightforward. A number of predefined filters are available to detect damages or anomalies in different stages of development; two of which are designed specifically for bearing monitoring and two which are recommended for detection of non-bearing related problems.
High Definition Order Tracking
HD Order Tracking is used with Leonova Diamond, Leonova Emerald and Intellinova, primarily for analysis on variable speed machines. The method uses multiples of rotational speed (orders) - rather than absolute frequency (Hz) - and is capable of handling ±50% RPM variations during data acquisition. The number of orders to be covered is input by the user. HD Order Tracking provides reliable data and crystal clear measuring results even when RPM varies greatly during the course of measurement.
Symptom Enhancement
Symptom enhancement is an algorithm that looks for repetitive impacts in the time domain. As a result, random signals are suppressed, and repetitive signals enhanced. The output is an HD Env Time signal, where relevant bearing and gear data are displayed. Using HD Order Tracking and symptom enhancement, applying FFT on the signal is very useful to determine the source of the signal.
Random Impact Rejection
Randomly occurring high readings which may cause false alerts are filtered out by means of the random impact rejection algorithm.
Output Data
The unit of measurement is HD Real Peak, a scalar value expressed in decibels. Representing the true highest peak found in the envelope signal, HD Real Peak is the primary value to use for determining the severity of a bearing or gear damage. It is also used for triggering alerts. HD ENV is very suitable for detecting equipment damages which typically have short development times, for instance due to high rotational speed or high temperature industrial environments.
The HD ENV module requires either the EVAM (MOD135) or FFT with symptoms (MOD134) module to also be in use.
NOTE: A new license with MOD135 (EVAM) and/or MOD134 (FFT with symptoms) automatically includes HD ENV. Only use MOD199 for upgrading an existing license (Condmaster Ruby 2014 or older) that already has MOD135 and/or MOD134.