Valco Cincinnati VC350A, Manual

Page: 59 / 327

Section 8 — Operation VC350A Flexoseal
®
System
Valco Cincinnati 8-5
Figure 8-6. Fluid-Flow Control (EPC) Manifold
9. Unplug the transducer cable from the EPC-50 circuit board (the 4-pin connector at J2), while the machine
is running. If the “INC” LED comes on and stays on, the problem is probably in the EPC-50 board. If not,
the manifold/transducer assembly may need to be replaced.
10. If more pressure or less maximum pressure is desired, adjust the “SPAN” (or “GAIN”) pot.
Note! Adjusting the pot down limits the maximum pressure output to the system (e.g., 60 psi maximum
instead of preset 80).
11. If the parent machine is at rest and the pressure on the front gauage is not on “0”, adjust the “zero” pot
down toreach zero.
Note! This adjustment should be made by slowly backing the adjustment down. Do not adjsut the pot so far
down that the “decrease” LED remains on.
manifold
pressure-gauge port
pressure transducer
increase solenoid
decrease solenoid