Badger Meter M-Series M1000 - Manual (Page 14)

Non-Conductive Pipe Grounding
If the process pipe is not electrically conductive (PVC, fiberglass, cement-lined pipes or any other non-conductive material) and the
meter was not originally ordered with an optional grounding electrode, you must install a pair of grounding rings between the
mating flanges at both ends of the meter. See the following illustration.
In this case, the grounding straps should be connected to both of the
grounding rings and to a good, solid earth ground . Grounding rings
are available in stainless steel . If your fluid is too aggressive for stainless
steel, order a meter with the optional grounding electrode in a material
compatible with the fluid .
GASKETS RECOMMENDED
GROUNDING RING
GROUNDING RING
Figure 17: Non-conductive pipe grounding
POWER CONNECTIONS
Wiring Safety
AT INSTALLATION, BE SURE TO COMPLY WITH THE FOLLOWING REQUIREMENTS:
• Disconnect power to the unit before attempting any connection or service to the unit .
• Do not bundle or route signal lines with power lines .
• Keep all lines as short as possible .
• Use twisted pair shielded wire for all output wiring .
• Observe all applicable local electrical codes .
Opening the M1000 Cover
The M1000 amplifier's design lets you open the cover
without completely removing it .
Follow these steps:
1 . Completely remove the top two screws from the
amplifier using a blade/slotted screwdriver .
2 . Loosen both of the bottom screws so that the round
head of each screw clears the top face of the cover .
3 . Pull down the cover to the open position .
• For the 2 x M20 cable inlets, use only flexible electric
cables .
• Use separate cable inlets for auxiliary power, signal and
input/output cables .
Figure 18: Remove two screws Figure 19: Open the cover
Power connections
Page 14 July 2014 MAG-UM-00379-EN-02