Straight Pipe Recommendations; Full Pipe Recommendations; Positioning The Meter; Installing Gaskets - Seametrics AG3000p Instructions Manual

INSTALLATION

Positioning the Meter

CAUTION: These flow sensors are not recommended where
installation may expose the flow sensor to boiler pressure and
temperature. Maximum recommended operating temperature is
140˚ F (60˚ C).
ATTENTION: Ces capteurs de débit ne sont pas recommandés là
où l'installation peut exposer le capteur de débit à la pression et à
la température de la chaudière. La température de fonctionnement
maximale recommandée est de 140 °F (60 °C).
These meters can be installed horizontally, vertically (with
upward flow), and in any radial position. Using a check
valve on the upstream side of the meter, and/or an air
vent (vacuum relief valve) in the same, unobstructed run
of pipe as the meter, is required in any installation where
the meter may be exposed to suction when the system
is not in normal operation. Suction can cause damage
to the liner. Liner damage caused by suction, without
the use of a check valve and/or air vent, may void the
warranty.

Straight Pipe Recommendations.

straight pipe before and after the meter for best accuracy.
However, the ability of electromagnetic meters to average
the flow across the entire pipe allows for shorter straight pipe
recommendations than most mechanical meters (see page 7).
Full Pipe Recommendations. To prevent false readings, this
meter is designed to indicate 'EMPTY PIPE' 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 or sludge accumulation is an issue,
rotate the meter by one flange hole to position the control
housing at a 45˚ angle (see diagrams on page 8).
Fittings. The meters have ANSI 150 lb. drilled flanges and will
mate with any other ANSI 150 lb. flanges. See table on page 10
for flange bolt tightening torque specifications.
Calibration. The AG3000 is factory-calibrated before shipping.
The frequency of recalibration will depend on the needs of
each application and local regulatory policies.
Chemical Injection. When an AG3000 meter is used in a
chemical injection application, the chemical injection point
must be placed downstream of the magmeter OR far
enough upstream for complete mixing to occur before the
fluid reaches the meter. When unmixed chemical alternates
with water passing through the meter, the rapid changes in
conductivity may cause sudden spikes and drops in the meter's
reading, resulting in inaccurate measurement. The magmeter
will restabilize, however, with a steady flow of fluid of uniform
conductivity.
CAUTION: In chemical injection applications, install chemical
injection point downstream of magmeter, or far enough
upstream to allow complete mixing of fluids.
ATTENTION: dans les applications d'injection de produits
chimiques, installez le point d'injection de produits chimiques
en aval du débitmètre électromagnétique ou suffisamment en
amont pour permettre un mélange complet des fluides.
Seametrics • 253.872.0284

Installing Gaskets

The AG3000 requires
Page 9
NOTICE: Do not install a magmeter
downstream of a pressure or proportional
control valve.
AVIS: N'installez pas de débitmètre
magnétique en aval d'une vanne de
régulation de pression ou proportionnelle.
NOTICE: Gaskets are required at all
junctions.
AVIS: Des joints sont requis à toutes les
jonctions.
1. Be sure all mating surfaces are smooth and free of
debris.
2. Install Seametrics provided gaskets, or equivilent,
on each end of meter as shown in diagrams below.
If using grounding rings, install one gasket on each
side of the grounding ring.
3. Failure to install gaskets will void warranty.
Installation without grounding rings
Grounding
Installation with grounding rings
AG3000p INSTRUCTIONS
Gaskets
Rings
Gaskets
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