Faster ASEPTIC, Operating And Maintenance Manual

Page: 41 / 68

a D:GROUP Company
00254EN – Rev. 01 – 11/2012 41
13.B MEASUREMENT OF THE INTERNAL PRESSURE
Check the internal pressure by connecting a calibrated manometer to the transparent pipe in the front control
panel. Use a 3 ways “T” connector to allow the pressure transmitter and the calibrate manometer to be
connected together.
13.C MEASUREMENT OF THE NOISE LEVEL
For a correct testing the background noise in the laboratory with the isolator off should not exceed 55 dB(A).
The microphone of the phonometer must be placed at 1 m from any part of the isolator.
The sound pressure level must not be over 60 dB(A).
The measure taken must be reported in then "Test report".
13.D MEASUREMENT OF LIGHTING
Take the measure with a luxmeter placed inside the work chamber in the middle of the work surface.
Consider at least 4 readings points where the two side points should be 150mm away from the side walls and
the middle points will be spaced max. 300 mm, if possible. Then calculate the average value, which should
be at least 750 lux.
Register the average value of the lighting in the “Test report”.
13.E MEASUREMENT OF VIBRATION
Take the measures with a vibration analyzer, which is to be placed in the middle of the two central sections of
the work surface
The test must be performed firstly when the isolator is off and then when the isolator is working.
The difference of the taken values is the real datum of the isolator vibration. This value should not exceed
0.005 mm RMS
Record the data in the “Test Report”