Xylem EX100, EX200 User Manual
EX100
ISO
/
200-Series
INSERTION MAGNETIC
FLOW METER INSTRUCTIONS
EX100/200-SERIES INSERTION MAGNETIC FLOW METER INSTRUCTIONS
EX101
EX201
EX115
EX215
9 001:2008
CERTIFIED COMPANY
TABLE OF CONTENTS
General Information
General Information, Features, Specications .................................................................................................Page 1
Installation
Piping, Distorted Flows, Immersion, Positioning the Meter ............................................................................Page 2
Fitting Installation, Meter Installation ............................................................................................................... Page 3
Proper Depth Setting ......................................................................................................................................... Page 4
Dimension “C”, Pipe Wall Thickness ................................................................................................................. Page 5
Straight Pipe Recommendations ...................................................................................................................... Page 6
Full Pipe Recommendations ..............................................................................................................................Page 7
Electrical Connections
General Electrical Guidelines, Power, Forward (and Reverse) Flow Output,
Grounding Guidelines, Grounding Diagram......................................................................................................Page 8
Connections Diagrams
Counter or PLC, A055 4-20 mA Output, FT520 Controller .............................................................................. Page 9
FT420 Display and Proportional Feed, FT420 & 4-20 mA Output, Dual FT420 Displays ............................. Page 10
DL76 Data Logger, FT420/DL76 ....................................................................................................................... Page 11
Operation & Maintenance
Zero Adjustment, Minimum Flow, Presence of Flow Indication, Filtering,
Electrode Coating, Calibration (“K-Factor”), Flow Rates in Gallons Per Minute ............................................. Page 12
Troubleshooting
Problems, Probable Causes and Things to Try ................................................................................................. Page 13
TABLES, DIAGRAMS & CHARTS
Features .............................................................................................................................................................. Page 1
Distorted Flows, Positioning the Meter ............................................................................................................. Page 2
Meter Installation, Sensor Removal .................................................................................................................. Page 3
Proper Depth Setting ......................................................................................................................................... Page 4
Dimension “C”, Pipe Wall Thickness ................................................................................................................. Page 5
Straight Pipe Recommendations ...................................................................................................................... Page 6
Full Pipe Recommendations ..............................................................................................................................Page 7
Grounding Diagram ............................................................................................................................................ Page 8
Connection Diagrams: Counter or PLC, A055 4-20 mA Output, FT520 Controller ........................................ Page 9
Connection Diagrams: FT420 Display and Proportional Feed, FT420 & 4-20 mA Output,
Dual FT420 Displays .......................................................................................................................................... Page 10
Connection Diagrams: DL76 Data Logger, FT420/DL76 ................................................................................ Page 11
Zero Adjustment, Flow Rates in Gallons Per Minute ........................................................................................ Page 12
Troubleshooting Problems, Probable Causes and Things to Try ..................................................................... Page 13
GENERAL INFORMATION, FEATURES and SPECIFICATIONS
The complete lack of moving parts of the EX100/200-Series insertion
ow sensor 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.
A rapidly reversing magnetic eld is produced in the lower housing.
As the uid moves through this eld, a voltage is generated that is
measured and translated into a frequency signal proportional to ow
rate. This square wave signal can be sent directly to a PLC or other
control or can be converted using any of the Seametrics family of
indicators and converters.
A modular system of electronics can be attached directly to the ow
FEATURES
Cable Strain Relief
Lower Housing
Brass or 316 Stainless Shaft
Compression Nut
Adapter mates with
1 1/2” FNPT threaded tting
Sensor Housing
Electrodes and Cap
sensor or remotely mounted. The Seametrics FT420 provides full
indication of rate and total, plus 4-20 mA output. The AO55 provides
blind 4-20 mA output, and the DL76 is a battery-powered data
logger.
The adapter of the EX mates with a standard female NPT tting,
and can be directly threaded into ordinary saddles or threaded weld
ttings. The EX115 and 215 include an isolation valve, allowing hot-tap
installation, or installation and removal under pressure; a bronze ball
valve is standard, with a 316 stainless steel valve option if needed.
Reverse ow output and immersibility are optional.
Housing Screw (connect ground to one)
Cover or Electronics Module
EX101/201
EX115/215
Valve assembly for
hot tap installation
SPECIFICATIONS*
Pipe Sizes
Materials Shaft/Fitting
Electrodes
Electrode Cap
Housing
Valve Assembly
(115/215 Only)
O-Ring
(115/215 Only)
Power Full Power
Low Power
Flow Range
Fitting Size Required
Temperature Ambient
Fluid
Pressure
Minimum Conductivity
Calibration Accuracy
Output
Empty Pipe Detection
*Specications subject to change • Please consult our website for current data (www.seametrics.com).
3” to 48” (up to 72” optional)
316 SS or Brass
Hastelloy
PVDF
Cast powder-coated aluminum
Bronze (stainless optional) with bronze ball valve
EPDM
12-25 Vdc, 250 mA
12-25 Vdc, 40 mA average with 250 mA peaks
0.28 to 20 ft/sec (0.08 - 6.09 m/sec)
EX101/201 EX115/215
1-1/2” FNPT 2” FNPT
0˚ to 160˚ F (-17˚ to 72˚ C)
32˚ to 200˚ F (0˚ to 93˚ C)
200 psi (13.8 bar)
20 microSiemens/cm
+/- 1% of full scale
Square wave pulse, opto isolated, 550 Hz @ 20 ft/sec
6 mA max, 30 Vdc forward ow standard; reverse ow optional
Software, defaults to zero ow
Page 1
INSTALLATION
Piping. For best results, the EX sensor should be in-
stalled with at least ten diameters of straight pipe
upstream and ve downstream. Certain extreme situations
such as partially-opened valves are particularly difcult and
may require more straight diameters upstream (see page 6
for straight pipe recommendations).
DISTORTED FLOWS
Faster Flow
Causes Meter
Distorted
Flow Prole
To Read High
FLOW
10X
5X
POSITIONING THE METER
Fair
(Unacceptable position
if air is present)
Best
Position
Fair
(Unacceptable position if uid
contains sediment)
Immersion. The 100/200-Series sensors are not designed
for underwater operation. Even occasional immersion can
cause damage. If occasional immersion, such as when a
vault oods, then the -40 option, (immersion) is recomended.
Chemical Injection or Fertigation. When any magmeter, by
any manufacturer, is used in a chemical injection application (including fertigation), the chemical line must be placed
downstream of the magmeter OR far enough upstream for
complete mixing to occur before the uid reaches the meter.
When unmixed chemical or fertilizer 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 ow of uid of uniform
conductivity.
Caution: In chemical injection or fertigation applications, install chemical line
downstream of magmeter, or far enough
upstream to allow complete mixing of
uids before the meter.
Vertical ow in upward direction is the preferred installation
orientation, since it improves low-ow performance and avoids
problems with trapped air and sediment. Bottom, top, and
vertical pipe installations are all acceptable if required by
the piping layout.
Caution: These ow sensors are not rec-
ommended for installation downstream
of a boiler feedwater pump where instal-
lation fault may expose the ow sensor
to boiler pressure and temperature. Maximum
recommended temperature is 200°F.
Page 2
INSTALLATION
EX101/201 INSTALLATION
Fitting Installation. EX101/201adapters mate with a 1-1/2” female
NPT pipe thread adapter tting. Any tting that provides the matching
NPT female thread may be used. Installation procedure compensates
for tting height differences. Cut a minimum 1-3/4” hole in the pipe. If
possible, measure the wall thickness and write it down for use in depth
setting. Then install the threaded tting (saddle, weldolet, etc.) on the
pipe.
Meter Installation. Loosen the compression nut so that the adapter
slides freely. Pull the meter fully upward and nger-tighten the compression nut. Using a thread sealant, install the adapter in the pipe tting.
Do not overtighten. Now loosen the compression nut, lower the meter
to the appropriate depth setting (see diagram and instructions that fol-
low). Be sure ow is in the direction of the arrow on the housing. Tighten
compression nut fully.
Compression nut
Adapter mates
with
FNPT
threads
EX115/215 INSTALLATION
‘Hot tap’ EX meters are designed so they can be installed and serviced
without depressurizing the pipe.
Fitting Installation. The EX115 and 215 adapters mate with a 2” FNPT
threaded tting for compatibility with the 2” isolation valve. Any tting
that provides matching NPT female thread may be used. The installation
procedure compensates for differences in tting height.
If initial installation is performed on an unpressurized pipe, cut a
minimum 1-3/4” hole in the pipe. If possible, measure the wall thickness
and write it down for use in depth setting. Then install the threaded tting
(saddle, weldolet, etc.) on the pipe.
If it is necessary to do the initial installation under pressure, any standard
hot tap drilling machine with 2” NPT adapter, such as a Transmate or a
Mueller, can be used. Ordinarily, it is not necessary to use an installation
tool, due to the small diameter tube the meter can be installed by hand
at all but the highest pressures.
Compression nut
Locking collar
2” adapter removes
to mount hot-tap
machine
Full-port 2” ball
valve allows sensor
removal
Mates with 2”
FNPT threads
Meter Installation. Remove the sensor unit from the valve assembly.
Using a thread sealant, install the valve assembly on the pipe tting. If
the initial installation is a pressure (“hot”) tap, remove the 1-1/2” x 2”
adapter bushing at the back of the valve. Thread the tapping machine
on, open the valve, and tap using a minimum of 1-3/4” or maximum
1-7/8” cutter. After retracting the machine and closing the valve, reinstall
the ow sensor. When the sensor is secure, open the valve and adjust
depth setting (see diagram and instructions that follow). Be sure ow is
in the direction of the arrow on the housing. Tighten locking collar and
compression nut fully.
EX115/215 Sensor
Removal
Page 3
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