Are the vibration levels of the catalytic flue stack at the installation site the same as those of the instruments indoors?
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Are the vibration levels of the catalytic flue fan at the installation site the same as those indicated by the instruments indoors? The reading indoors is around 70, while the vibration level measured using a vibration detector at the installation site is around 16. Is this normal?
Are there few experts on catalytic equipment in the group now? If I don’t get a reply, I’ll go to the equipment section instead
There are still deviations in the data measured by handheld vibrators. For example, hold this vibration meter in your hand and see if you can keep the vibration at 0. Compared to the measurement points inside the smoke extractor, this error is much smaller! It’s best to consider the parameters for several key points together!
Are there any experts in moving equipment? If not, I’m hoping for your help
You are measuring the vibration of the shell, while the instrument is measuring the vibration of the bearing bracket. Additionally: For the amplitude and acceleration measured manually, make sure to use the same units as those used by the instruments. Also, scrape off the paint from the measurement point and press it firmly during measurement.
Generally, the unit for vibration values on CCS is μm. Handheld devices can measure displacement, velocity, and acceleration – depending on your choice. Additionally, handheld devices detect vibration in the bearing housing, while online monitoring measures vibration in the bearing bushes; there is a difference between the two, but it’s not very significant
One is for testing the casing, and the other is for testing the rotor; they are definitely different
If the vibration values shown inside are all 70, then the vibration level of this smoke extractor is quite high; normally, it should be below 20 to be considered normal. There is still a difference in vibration levels between measurements taken on the handheld device and those taken on the rotor
After we completed the maintenance, replaced the rotor, and turned the machine on, the reading was still over 20
It’s definitely different; the measurement taken with a handheld device is not as accurate as that taken using the sensor on the external cover. The probe inside is certainly more precise. By keeping records and making comparisons, it’s possible to determine whether there is an increase in vibration