Equalization And Grounding; Metal Pipe Installations; Plastic Pipe Installations; Power Supply - Seametrics AG2000 Instructions Manual

EQUALIZATION AND GROUNDING

WARNING: ELECTRICAL SHOCK HAZARD
When the AG2000 is installed in a plastic piping system, or when externally powered, it is very important to ground
the meter to avoid electrical shock hazard. Failure to do so can result in electrocution.
Metal Pipe Installations. To equalize the electrical potential
of the fluid, the AG2000 meter, and the surrounding
pipe, secure the flange plates (factory-installed on the
equalization wire) to both pipe flanges at one of the
bolt holes, as shown below. Be sure the lock washer fits
between the pipe flange and the flange plate. For the best
electrical bonding, remove rust and paint to expose clean,
bare metal where the equalization flange plate lock washer
contacts the pipe flange. Connection must be inspected
periodically for corrosion to maintain the necessary low
resistance connection.
Meter Flange
Gasket
Pipe Flange
Lockwasher
Flange Plate
Equalization Lug
Meter
Flange
Metal Pipe
Gaskets

POWER SUPPLY

Battery Power (standard). The AG2000 is powered by a non-
rechargeable battery pack with standard battery life of 2.5
years; 5 years with extended battery life (EBL) option. Actual
lifespan will vary from application to application, depending
on the duty cycle (the High Frequency option, if selected, will
shorten battery life).
"Low Batt" will display when it is time to replace the battery
(see illustration at right). Replacement instructions come
with the custom battery pack available from your dealer or
Seametrics.
NOTE: Memory will not be lost during a battery change.
253.872.0284
Pipe
Flange
Metal Pipe
Plastic Pipe Installations. When the AG2000 is installed in
a plastic piping system, grounding rings are recommended,
especially in the presence of electrical interference sources
such as VFD pump drives. As shown in the diagram below,
the equalization wires should then be connected to the
grounding ring tabs instead of the flange bolts as in metal
piping installations. Where lightning is a threat, or in severe
electrical environments, an optional connection to a nearby
equipment ground or ground rod may be advisable.
Grounding Ring Part Numbers:
3" = n/a
4" = 100876
6" = 100877
Equalization Lug
Grounding Ring
Gaskets
Plastic
Pipe
#6, #8, or #12 AWG Stranded
Copper Ground Wire < 5'
External Power (optional). When external power is used, the
batteries serve as backup in case of power failure, keeping
the meter reading out during an outage. The display reads
"P" to indicate that external power is in use (see illustration
on next page).
When the display is reading numbers/letters but neither the
"Low Batt" or "P" symbol is displayed, the meter is functioning
normally under battery power (see illustration at right). When
the display is completely blank, the meter is not powered.
Solar Power (optional). In most areas of the US, a 12-volt,
5 watt solar power unit (panel, charge controller and
battery) should suffice to operate the meter. In this case, the
internal batteries will serve as backup and battery life will be
conserved.
Page 5
AG2000 INSTRUCTIONS
8" = 100878
10" = 100879
12" = 103288
Grounding Ring
Gaskets
Plastic
Pipe
Ground Clamp
(Exothermically weld when
corrosion is a concern)
8' Ground Rod
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