Seametrics AG2000 Instructions page 2

INSTALLATION
Tamper-Evident Seal. The battery-powered AG2000 has a seal
wire to protect against unauthorized access. The seal can be
broken to change units of measure, replace the battery pack,
or to field-install a power/output cable (see page 4). CAUTION:
If water usage regulation is in effect, only a person authorized
by your regulatory agency should break the seal wire, and
replace it when finished.
Positioning the Meter. These meters can be installed
horizontally, vertically, and in any radial position. If sludge
accumulation is possible, vertical or horizontal placement with
the register at a 45˚ angle may be preferred.
Full Pipe Recommendations. All magmeters require a method
for determining that the pipe is empty, to prevent false reading.
This meter is designed to go to zero reading if one or more
electrodes is exposed. For highest accuracy, install the meter
so that the pipe will be full when there is flow. If air bubbles
may be present in the pipe, rotate the meter by one flange hole
to position the control housing at a 45˚ angle. See mounting
diagrams below.
Intermittent air Electrode
bubbles moved from
pass over top by rotating
electrode
Possible
sediment
build-up
Possible Problem:
Air bubbles and sediment on the
electrodes can affect accuracy.
Possible Problem: Air pockets,
accuracy loss, empty pipe reading
Possible Problem: Air can be
trapped, loss of accuracy
Not Recommended: Vertical
downflow, open discharge
Page 2
Intermittent air
bubbles
miss electrode
meter
Better Installation:
Improved accuracy results from
unimpeded electrodes.
Better Installation: Keeps pipe full
at sensor for accuracy
Better Installation: Allows air
to bleed off, higher accuracy
Better Installation: Vertical
upflow with full pipe
Straight Pipe Recommendations. See the diagrams below
for manufacturers' recommendations. NOTE: Local regulations
may vary. Confirm before installing to assure compliance.
Chemigation Applications. Magmeters in chemigation ap-
plications must be placed either upstream of the chemical
injection line, or far enough downstream for complete mix-
ing to occur before the solution reaches the meter. Proper
placement prevents spikes and drops in readings that re-
sult when fluids of different conductivity pass through the
Electrodes free
meter. For more information, refer to the technical bulletin
from sediment
build-up
on the SeaMetrics website Downloads page.
Fittings and Flanges. The AG2000 flanges have standard ANSI
150 lb. drilling, and should match up with any other ANSI 150
lb. flange. IMPORTANT: Piping protruding beyond welded-on
flange faces may damage meter sealing surfaces.
Temperature. These flow sensors are recommended for
operating temperatures of 10˚ to 130˚ F (-12˚ to 54˚ C) and
non-operating temperatures of -40˚ to 158˚ F (-40˚ to 70˚ C).
Calibration. The AG2000 is factory calibrated and cannot be
recalibrated in the field.
Protecting the Meter. A weather guard is recommended
(SeaMetrics part #31388) for environmental protection.
FLOW RANGE
4"
6"
8"
10"
2X
pipe size pipe size
Elbows
1X
2X
pipe size pipe size
Reduced Pipe
(not recommended)
Expanded Pipe
Minimum
12 gal/min
(.75 liter/sec) (31 liter/sec)
32 gal/min 1,200 gal/min
(2 liter/sec) (76 liter/sec)
60 gal/min 2,200 gal/min
(4 liter/sec) (139 liter/sec)
95 gal/min 3,500 gal/min
(6 liter/sec) (220 liter/sec)
1X
Maximum
500 gal/min