Cormach MEC 1, Technical Support Manual

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Technical Support Manual – 05/2015 Rel. 0 Page 4
RPM

Shaft rotation speed test
This menu option allows you to run the shaft rotation speed test. When you access this option, the display shows the message
RPM
000
as shown in figures F2.4 and F2.5.
Figure F2.4: Shaft rotation speed test message Figure F2.5: Shaft rotation value message
To perform a realistic measurement, we recommend mounting a medium size wheel on the shaft.
Manually run a launch by acting on the locking ring with knobs. Once the rotation is complete, the display shows the rotation speed
in RPM (revolutions per minute). You can repeat the rotation any time you wish.
The nominal rotation speed is indicated in table T9.2.
To exit the rotation speed test, press [F+P9] .
SIG

Pick-up signals test
This menu option allows you to run the pick-up signals test. When you access this option, the display shows the message
SIG SIG
as shown in figures F2.6 and F2.7.
Figure F2.6: Pick-up signal test message Figure F2.7: Pick-up signal message
To perform this test us a well-balanced complete wheel weighing 50 grams outside to run this test. The dimensions of the wheel
should be:
•
Diametro: 15”
• Larghezza: 6”
DON’T USE ALUMINUM RIM.
If the dimensions of the wheel are different from those indicated, the pick-up signals detected will be different when compared to
those stated in table T9.2. The pick-up signals depend on the diameter and width of the wheel (the greater the diameter, the higher
the signal and the greater the width, the higher the signal).
Manually run a launch by acting on the locking ring with knobs. During rotation, the display shows a sequence of three measurements
performed at different attenuation levels. The values of the signals displayed are expressed in an internal numerical format and they
do not correspond to any international unit of measurement.