Graco ProMix PD2K Installation Manual page 40

Grounding
Object Being Sprayed
Follow local code.
All Solvent Pails Used When Purging
Follow local code. Use only conductive metal
pails/containers placed on a grounded surface. Do
not place the pail/container on a nonconductive
surface, such as paper or cardboard, which interrupts
the grounding continuity.
40
Check Resistance
To ensure proper grounding, resistance between
components and true earth ground must be less
than 1 ohm.
332457H