61
5-2-2. Filter replacement and restriction maintenance
The contamination from the instrumentation air that collects in the restriction in the SVX
can be removed during maintenance. For the instrumentation air, use dry air which has been
cleaned of 3 μm (or smaller) solid particles. Always use a Phillips screwdriver.
Procedure
Step No.
Procedure
1
Cut off the air supply to the SVX.
2
Remove the setscrews from the A/M switch nameplate section.
3
Turn the A/M switch to the MAN (manual) position.
4
Use nippers or another tool to cut the holder and remove the old filter.
Note) Dispose of the old holder and filter appropriately.
5
Use wire to remove the contamination from the restriction (diameter 0.3 mm).
Note) Be careful not to damage the restriction when removing the contamination.
Do not use an air gun. Do not allow any oils or greases to contaminate the
restriction.
6
Wrap a new filter around the A/M switch, and press it in place with the holder.
7
Screw down the A/M switch until it stops.
8
Reassemble the A/M switch section by holding the two O-rings and A/M switch
cover plate together and then securely tighten using the setscrew.
A/M switch
O-ring
Plate
Setscrew
Fig. 5-4. A/M switch
Summary of Contents for SVX100
Page 1: ...CM2 SVX100 2001 Smart Valve Positioner for Rotary Valve Model SVX100 102 User s Manual...
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Page 40: ...30 4 2 1 Menu Tree...
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