Graco HydroShield WABH00 Instructions - Parts Manual page 58

Setup Menus
Calibrate Calibrate Calibrate 2: 2: 2: Fluid Fluid Fluid
Use the Calibrate 2 screen to adjust the calibration
value of the fluid. (Default value is 1000 mV.)
Calibrate the fluid:
• When the actual fluid pressure does not match the
target value on the Home screen and it seems like
it should. Home Screen, page
For example, when the system is in Prime mode
and the gun is not triggered, both target and actual
values should be the same.
• After replacing the electro/pneumatic regulator
(V2P) (415).
• After replacing the V2P cable.
Follow the steps in Calibrate the Fluid, page
Fluid: Fluid: Fluid: Current fluid pressure in mV for calibration
purposes.
Calibrate the the Fluid Fluid
Calibrate Calibrate the Fluid
Before calibrating the fluid, be sure that no air
pressure is present in the system.
1. Perform the zero clear steps described within
Replace an Electro/pneumatic (V2P) Regulator,
page 107.
2. On the Calibrate 2 screen, select Fluid:
Resume system use.
58
45.
58.
Calibrate 3: 3: 3: Bleed Calibrate Calibrate Bleed Bleed Resistor Resistor Resistor
Use the Calibrate 2 screen to adjust the
calibration value of the bleed resistor.
(Default value is 10000 Mohms.) Follow the
Calibrate the Bleed Resistor, page
Adjusting the value changes the kV display on the
Home screen.
Bleed Bleed Resistor: Bleed Resistor: The resistor that is used to slowly Resistor:
discharge the system, providing a path to ground
when the system is charged.
Note
All systems are shipped with the value set at
10,000 Mohm. A new bleed resistor displays
accurate system voltage.
Calibrate the the Bleed Bleed Resistor
Calibrate Calibrate the Bleed
1. With the bleed resistor (24) removed from the
system, measure the resistance across the bleed
resistor. See Check the Bleed Resistor, page
2. Use the keypad to enter the measured value.
Only values between 9,000 and 11,000 Mohm
are allowable.
3. Reinstall the bleed resistor into the system.
4. Reattach the wire from the fluid pressure
regulator (21) to the bleed resistor (24) and the
bleed resistor to the ground rod (18).
5. Make sure the wire coming out of the top of the
bleed resistor is plugged back into the kV board
(428) inside the electronics control panel.
6. After the reassembly is complete, check the
continuity between the fluid pressure regulator,
bleed resistor, and ground rod.
58.
Resistor
Resistor
3A8492A
70.