General Information; Features - Seametrics EX11 Series Instructions Manual

GENERAL INFORMATION

The EX100/200-Series are adjustable depth insertion
magmeters that fit 3" to 48" pipe (up to 72" optional). The
complete lack of moving parts of the EX100/200-Series is
the source of its reliability. Brass and stainless steel models
withstand a variety of temperature, pressure, and chemical
conditions. The EX-Series has no rotor to stop turning in
dirty water and there are no bearings to wear out. Like all
magmeters, when used in chemical injection applications,
these meters should be installed upstream of the chemical
line (or far enough downstream to allow complete mixing
of fluids before the meter). Adapters mate with standard
1-1/2" (11x/21x) or 2" (15x/25x) FNPT threaded fittings
such as saddles and weldolets which may be purchased
either locally or from Seametrics.
A rapidly reversing magnetic field is produced in the lower
housing. As the fluid moves through this field, a voltage is
generated that is measured and translated into a frequency
signal proportional to flow rate. This square wave signal
can be sent directly to a PLC or other control or can be

Features

EX11x/21x
Seametrics • 253.872.0284
Housing Screw
(connect one to ground)
Cover or Electronics Module
Powder-Coated Cast
Aluminum Housing
Cable Gland Strain Relief
Compression Nut for easy
adjustment, secure locking
Adapter mates with threaded fitting
FNPT 1 1/2"
3/4" tubing, low insertion force
(Typically no tool required)
Sensor Housing
Electrodes and Cap
converted using any of the Seametrics family of indicators
and converters.
A modular system of electronics can be installed directly
on the flow sensor or mounted remotely.
(externally powered with pulse) and the FT440 (loop
powered), both provide digital rate and total displays, as
well as a programmable pulse; the FT440 also provides a
4-20 mA analog output. The AO55 is a blind analog (4-
20 mA) transmitter. Programmable pulse for pump pacing
is available with the PD10 (available as wall-mounted unit
only).
The "hot-tap" models (EX15x/25x) can be installed or
serviced without shutting down the line by means of
a 2" full-port isolation valve that comes with a nipple
for installation on the pipe fitting; a bronze ball valve is
standard, with a 316 stainless steel valve option if needed.
In most circumstances, no special tool is required.
Reverse flow output and immersibility are optional.
FNPT 2"
EX15x/25x
Page 3
EX100/200 SERIES INSTRUCTIONS
Cable Gland Strain Relief
Locking Collar
2" Adapter (removes to
mount hot-tap machine)
Valve Assembly for hot-
tap installation
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The FT430