Flowserve StarPac 3 User Manual
Page 38
StarPac Intelligent Control System FCD VLENIM0066-05 04/14
38
®
Figure 18: Driver Module Minimum Pressure Check
11. Direct the swivel run tee so the minimum pressure test port is accessible.
12. Screw a No. 10-32 x 1/16-inch barb fitting into the test port, and screw a No. 10-32 x 1/16 barb fitting into the
end of the elbow as shown.
13. Connect the tubing from the internal regulator output port to the orifice.
14. Using some 1/16-inch flexible tubing, connect a 0 to 30 psi gauge to the minimum pressure set port.
15. Once the gauge is connected, re-apply the positioner air supply (do not apply power). The minimum pressure
should now be registering on the gauge and must be 1.8 to 2.2 psi. If the minimum pressure is not correct,
take a 9/64 allen wrench and turn the minimum pressure set screw located at the bottom of the driver module
(Figure 12) until the pressure is in the range indicated. Cycle the positioner air supply several times and
recheck the minimum pressure and re-adjust, if necessary, to ensure that the pressure has settled within the
range specified.
16. When the pressure is set, remove the air supply.
17. Remove the No. 10-32 x 1/16 barb fittings from the swivel run tee and then remove the extension.
18. Replace the No. 10-32 x 1/16 barb fitting as shown in Figure 16 and reconnect the 1/16” flexible tubing from
the internal regulator output port to the orifice.
19. Remove the stiffener plate and plug plate. Make sure that the o-rings stay in place.
20. Re-install the main PCB assembly following the instructions found in section 14.15 of this manual.
21. Re-install the keypad. Insert the two retaining screws and tighten evenly, using a Phillips a screwdriver. Do
not over-tighten.
22. Re-install all covers.
23. Reconnect the positioner air supply and power. The positioner should now be ready to calibrate.
Minimum Pressure
Test Port
No.10-32 x
1
/
16
No.10-32 x Swivel
Tee (Pneumadyne
Part No. SFL-10)
No.10-32 x .016
Orifice
Pressure from Internal
Regulator to be tubed to
this orifice
No. 10-32 Extension
(Clippard Part No. 15010)
Barb