High Pressure Sensors; High Pressure Sensor Check - Graco SuperCat 232096 Instruction Manual

High Pressure Sensors

Problem
High pressure alarm
High pressure display value does
not change
High pressure displays "0"

High Pressure Sensor Check

1. Compare the high pressure A and B displays on
the keypad with the fluid pressure gauge readings.
2. If the displays and gauge readings do not match,
check the operation of the sensor by switching the
wire connection with the high pressure sensor that
operates. See Service, page 90.
Troubleshooting
Operating Condition
In spray or manual mode
3. Replace the sensor if faulty. See Service, page
Cause/Solution
Check valve positions against posi-
tions shown in Operation Manual
308875 for current operation. Correct
the settings as needed.
Check the high pressure A or B set-
ting. Adjust the setting to a normal
peak pressure for the material being
pumped. See Setup, page 56, to
determine the pressure alarm levels.
Check high pressure sensors. See
below.
Make sure there are no fluid leaks in
the system.
If sensor is okay, service the Premier
pump. See manual 308350, 308354,
or 308360.
Replace circuit board. See Service,
page 86.
Check high pressure sensors. See
below.
Replace circuit board. See Service,
page 86.
Check high pressure sensor connec-
tions. See Service, page 90.
Check high pressure sensors. See
below.
Replace circuit board. See Service,
page 86.
90.