Setup; Level Sensor Calibration - Graco PR70 Instructions - Parts Manual

Setup

Setup

Level Sensor Calibration

Polyethylene Tanks
2002
1. Empty tanks by executing multiple shots.
2. Relieve pressure. See Pressure Relief Procedure,
page 19.
3. With the level sensor installed, locate the "[OUT
OFF]" button. Activate teach mode by holding the
button down for at least two seconds but no more
than six seconds.
4. The LED will flash once and then go out. This sig-
nals that the sensor is now in standard operating
mode.
5. Using appropriate protective wear, check the sensor
for proper operation by reaching inside the tank and
placing hand in the area of the sensor. If the LED
lights up with your hand next to the sensor, it is
functioning properly.
20
2001
Teach
2003
Element
ti12493b
Stainless Steel Tanks
2102
ti12494a
1. Locate the calibration button on the sensor (2101)
closest to the electrical connector through one of the
four holes of the sensor well (2102).
2. If the calibration button cannot be seen through one
of the four holes in the sensor well, rotate the sen-
sor.
a. Loosen the sensor well cap (2103).
b. Rotate sensor until the calibration button can be
seen through one of the four holes in the sensor
well.
c. Tighten sensor well cap (2103).
d. Press and hold the button down with the ball
end of an allen wrench for two seconds. The
light will flash slowly and then go out.
3. Test for proper sensor function.
a. Loosen the sensor well cap (2103).
b. Back the sensor out of the well. The sensor
should sense the tank wall.
Accumulators
The accumulator low level sensors cannot be calibrated.
To ensure proper accumulator sensor operation ensure
the sensor is located in the correct location as described
in the Level Sensors installation section, page 15.
2101
2103
2104
312394ZAC