Check Level Sensor Calibration - Graco XM PFP Repair Parts

Repair

Check Level Sensor Calibration

1. Once the probe is installed and tightened in an
empty tank, make sure all level sensor dip-switches
are set to OFF/0.
2. Turn the system main power switch ON.
3. Navigate to the Supply screen. See XM PFP Opera-
tion manual.
4. Verify the tank is shown as empty on the screen,
except for the 4 gallon checkered dead band near
the bottom.
5. If the tank level is shown as black or if the level is
jumping, perform a disturbance scan:
NOTE: Tank level must be below the level sensor probe
end for the disturbance scan to perform the desired
function.
a. Remove the cover from the level sensor head.
b. See F . 10. First, flip dip-switch #8 to the ON/1
IG
setting. Then do the same to dip-switch #7, then
#6, then #4 in that order. The LED on the level
sensor will blink green and red.
ti20271a
Black
F . 10: Top View of Level Sensor Head
IG
c. Press and release the button next to the blinking
LED. The LED will remain green for several sec-
onds.
24
1 2 3 4 5 6 7 8
ok prog
err exec
Blue Brown
d. After the LED returns to blinking green and red,
set dip-switches #4, #6, #7, and #8 back to
OFF/0. The LED will begin blinking green.
6. Screw the cover on to the level sensor head.
3A2989B