KROHNE ALTOSONIC V12 EN - Manual (Page 91)

SERVICE
8
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ALTOSONIC V12
www.krohne.com 04/2013 - 4002643502 - MA ALTOSONIC V12 R02 en
• Memorize and note the value : "Lowest shaft position" (when a transducer is placed back
again this value will be needed to check that the transducer has arrived at the correct
position.
• Turn the knob of the locking device to allow it to return to its locked position.
• Turn the adjusting disk back (clockwise) to find the position where the locking device will lock.
• Close the pressure relief valve.
• Turn the hand wheel counter clockwise to untighten and release the transducer fastening nut;
at the same time the transducer with the nut will travel outward from the meter body or
transducer port.
• Continue turning until the mail shaft has moved to its end: as far as possible out from the
tube.
• Measure the position of the shaft relative to the tube, the distance as read on the ruler should
be approximately 300 mm (actually 300 plus 9 mm: 9 mm is the length of the piece of the ruler
before the beginning of the scale, that is not accounted for in the numbers engraved along the
scale at the ruler).
INFORMATION!
This should take one turn or less, at the same time it should allow some play for the hexagon at
the end of the main shaft.
Figure 8-30: Close pressure relief valve
1 Pressure relief valve
Figure 8-31: Measure position shaft
1 Read the distance.