Vitals Reference Manual
130 Part No. 79-MAN-04, Rev. I E.H. Wachs
Figure 6-32. Adjust the potentiometer until the values
for A and B are equal.
4.
When the A and B readings are equal, replace the cover
on the control box.
5.
Continue with the Hydraulics Test by tapping the RUN
button.
Using the Diagnostics Cable
To isolate possible wiring or connection issues, you can per-
form diagnostics using the optional Diagnostics Cable (part
no. 79-302-20 for the HC-100).
1.
Connect the serial port end of the diagnostics cable to
the port on the HC-100.
2.
Remove the cover from the control box on the valve
operator.
3.
Remove the internal cable connection from the bottom
left of the circuit board, as shown in Figure 6-33.
A and B values
should be equal.
(Valve operator must
be in stopped condi-
tion—not running.)
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