Using Custom Accelerometer Settings on a Route
QUESTION
How can I use accelerometers with custom settings on a route? Sometimes when I'm recording a route I need to change accelerometers but there is no indication of when to switch the accelerometer over.
ANSWER
If you have a dual channel instrument you could create a parameter set using Channel 2 and the custom sensor settings. Alternatively you could include a location on the route that has a parameter set created with the custom accelerometer as the applicable sensor and a 'note to yourself' to change the accelerometer.
Setup
- Create a duplicate location on the route for the custom recording and set the custom accelerometer as the applicable sensor in the parameter set.
- Give this route location a meaningful name to remind yourself to change accelerometers.
For example, on a large, slow rotor a normal accelerometer may be used for bearing fault detection, but a low sensitivity accelerometer is used for 1X displacement measurements.
Your machine structure could look like this:
Large slow rotor
Motor DE
Motor NDE
Rotor
Rotor (10 mV/g)
The 1X displacement measurements are placed under the point 'Rotor (10 mV/g)', and you place the channel 2 accelerometer onto the machine for these measurements (remember the 15 character limit for the display of point names in large font when on-route).
Thanks to Geff Waite for his help with this article.
FAQ ID: 11608 Last Reviewed: 26 September 2005