Valco Cincinnati VC350A, Manual

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8-9 Valco Cincinnati, Inc.
MC060 Manual/VC350AG AutoGlue Control System Section 8 - Operation
Figure 8-8. EPC-50 Circuit Board
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 cleaned or replaced.
10. If more pressure or less maximum pressure is desired, adjust
the “SPAN” (or “GAIN”) pot.
Adjusting the pot down limits the
maximum pressure output to the
system (e.g., 60 psi maximum instead
of preset 80).
increase LED
decrease LED
power LEDs
GND
test point
F
test point
SPAN potentiometer
ZERO potentiometer
Fluid-Flow Control (EPC) (original
version) - Continued