Graco G3000 User Manual

1.

Ground the flow meter by connecting a grounded 
cable to the sensor.  

Have a qualified electrician check the electrical 
grounding continuity between the flow meter sensor 
and a true earth ground; remove the cable connec-
tor from the sensor and measure the resistance 
from the cable connector Pin B to true earth ground. 
Refer to F

. 2. 

If the resistance is greater than 25 ohms, check the 
cable ground connection. Refer to F

. 2. Reconnect 

the ground sheath or replace the cable. Do not oper-
ate the system until the problem is corrected.

2.

Always ground the fluid supply unit, using one of the 
following options:

a.

Mount the meter to a grounded conductive sur-

face, or

b.

Connect the conductive fluid hose to the meter 

inlet and outlet, or

c.

Connect a ground wire to the meter's M6 

mounting holes.

3.

Never use the flow meter with an electrostatic gun 
isolation stand.

7379A

+10-30 Vdc Supply (red)

Ground (black)

Signal Out (white)