Quick Start Guide
D103203X012
DVC2000 Digital Valve Controller
July 2017
13
12. Install a vent in the port on the upper diaphragm casing.
Note
Refer to 667 Diaphragm Actuator Sizes 30/30i through 76/76i and 87 instruction manual (D100310X012
) for 667 product
information.
Refer to the GX instruction manual (D103175X012
) for GX product information.
Air‐to‐Close Actuators (657 size 30i - 70i and GX)
7. Remove the cover of the digital valve controller.
8. Attach the digital valve controller to the actuator mounting pad.
Note
Use a 6 mm hex key to attach the digital valve controller the GX actuator mounting pad.
Use a 13 mm socket or box end wrench to attach the digital valve controller to the 657 size 30i -70i actuator mounting pad.
Note
The O‐ring and G1/4 or 1/4 NPT plugs (supplied in the GX mounting kit) are not used with this actuator construction.
9. Check for clearance between the magnet assembly and the DVC2000 feedback slot. The magnet assembly should
be positioned so that the index mark on the pole pieces (back of the positioner housing) is within the valid range on
the magnet assembly throughout the range of travel. See figure 2.
10. Install tubing between the actuator casing and the pneumatic positioner output connection that has the arrow
pointing away from the opening. See figure 7.
11. Install a vent in the port on the lower diaphragm casing or yoke.
Note
When field converting a GX actuator from fail‐open to fail‐closed (or vice‐versa), you will need to change the plugs for the
pneumatic passages in the DVC2000 housing.
D
To convert to fail‐closed, remove the R1/8 pneumatic plug on the back of the DVC2000 housing and install an O‐ring. Plug
the external pneumatic output with a 1/4 NPT or G1/4 plug (depending on the housing version). Refer to figure 12.
D
To convert to fail‐open, remove the external pneumatic plug (1/4 NPT or G1/4 plug depending on the housing version).
Install an R1/8 plug on the back of the DVC2000 housing. Install tubing between the pneumatic output connection of the
DVC2000 to the pneumatic port on top of the actuator casing.
Note
Refer to 657 Diaphragm Actuator Sizes 30/30i through 70/70i and 87 instruction manual (D100306X012
) for 657 product
information.
Refer to the GX instruction manual (D103175X012
) for GX product information.
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