Graco ProBell Electrostatic Controller Instructions And Parts page 56

Operation
Live Arc Detection Values
Press and hold the SEL button from Run Screen 1.
The screen will change to Run Screen 2 when the
button is pressed. Continue holding until the screen
changes to Run Screen 3. Press the SEL button one
more time to return to Run Screen 1. There should
now be two additional numbers shown on the Screen.
On Run Screen 1, the top number is kV, the second
number is uA, the third number is the live value for
static arc detection, and the bottom number is the
live value for dynamic arc detection.
During normal operation, the live arc detection values
should be below the arc detection limits set on Run
Screen 2. An arc detection error occurs when the
live arc detection value exceeds arc detection limit
setpoint. When an arc detection error occurs, the live
arc detection values freeze on the screen. This will
tell you what the maximum arc detection values were
when the error occurred and will help to set the arc
detection limits properly.
Watch the live static and dynamic arc values during
normal operation. Set your static and dynamic
arc detection limits slightly higher than the largest
numbers seen on the screen.
If you are still experiencing a lot of nuisance arc
detection errors, watch the static and dynamic arc
values during a situation where a nuisance arc
detection error occurs. (This is a situation where an
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arc detection error should not occur, but creates
an error anyway.) Set your static and dynamic arc
detection limits above the largest numbers seen on
the screen.
NOTE: The live arc detection values must be enabled
again if the controller loses power.
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