Seametrics EX90 User manual

EX90-SeriesEX90-Series
Electomagnetic InsertionElectomagnetic Insertion
Flow SensorFlow Sensor
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EX90-SERIES INSTRUCTIONS
Seametrics • 253.872.0284 Page 2 seametrics.com
TABLE OF CONTENTS
General Information
General Information ...................................................................................................................................................Page 3
Features...........................................................................................................................................................................Page 3
Specications ................................................................................................................................................................Page 4
Flow Rate ........................................................................................................................................................................Page 4
Dimensions ....................................................................................................................................................................Page 5
Installation
Chemical Injection or Fertigation..........................................................................................................................Page 6
Fitting Installation........................................................................................................................................................Page 6
Meter Installation ........................................................................................................................................................Page 6
Saddle Installation.......................................................................................................................................................Page 7
Straight Pipe Recommendations ...........................................................................................................................Page 8
Full Pipe Recommendations....................................................................................................................................Page 9
Connections
General Cable Information.......................................................................................................................................Page 10
Cable Gland Opening and Sealing........................................................................................................................Page 10
Cable Installation .........................................................................................................................................................Page 10
Wiring Diagrams ..........................................................................................................................................................Page 11
Cable Wiring Table ......................................................................................................................................................Page 11
Conguration
Cable Shield...................................................................................................................................................................Page 12
Pulse Output..................................................................................................................................................................Page 12
Operation
Minimum Flow..............................................................................................................................................................Page 13
Filtering............................................................................................................................................................................Page 13
Electrode Coating........................................................................................................................................................Page 13
Changing Flow Meter Settings - Standard Menu Options..........................................................................Page 13
Changing Flow Meter Settings - Submenu.......................................................................................................Page 13
Changing Flow Meter Settings - Home Screen and General Navigation..............................................Page 15
Changing Flow Meter Settings - Making Selections......................................................................................Page 15
To Change a Passcode...............................................................................................................................................Page 16
Power Indicators ..........................................................................................................................................................Page 16
Battery Powered Units ...............................................................................................................................................Page 17
Troubleshooting & Error Messages
Problem...........................................................................................................................................................................Page 18
Probable Cause.............................................................................................................................................................Page 18
Things to Try..................................................................................................................................................................Page 18
Error Messages .............................................................................................................................................................Page 19

EX90-SERIES INSTRUCTIONS
Seametrics • 253.872.0284 Page 3 seametrics.com
GENERAL INFORMATION
Features
TheEX90-seriesbatterypowered,insertionelectromagnetic
ow meter is designed for use with conductive uids in 4”–
12” pipe. The EX90’s stainless steel body allows the meter
to operate in a wide range of temperatures, pressure, and
corrosive or dirty environments.
The EX90 is highly suitable for dicult applications. With
no moving parts, these meters can be used in “dirty water”
applications where debris would foul a mechanical meter. If
the EX90 meter is used with a programmable controller, the
output signal can be fed direct, with no other conditioning
required.
Rate and total units can be set via the front panel touch key
pad by the user. Bidirectional ow is standard with totals
available in forward, reverse, net, batch forward and batch
reverse.
The EX90 is battery powered with an output cable available
for transmitting the pulse signal to remote devices. The
EX90 can be ordered with a saddle or weld tting designed
to accommodate a wide range of pipe sizes and types
while ensuring correct placement in the pipe. In addition,
an optional internal data logger allows local storage of
ow history.
The EX90 is also ideal for replacement of mechanical style
propeller meters.
Quickly and easily change Total Volume Units,
Flow Rate Units, Pulse Output Scaling, and many
other settings using the two light sensor button
controls on the display panel.
Battery Powered
Bidirectional Flow Reading
Pulse Scaled Output
Built-in Data Logger (Optional)
C276 Hastelloy electrodes
PVDF electrode cap
O-ring, EPDM
Powder-coated diecast aluminum
electronics housing
Sensor body (Stainless)
Output cable connector
Rate and total indicator with
light sensor button controls
Equalization lug
Data logger connector (Optional)
(Not shown)
Hinged Display Cover

EX90-SERIES INSTRUCTIONS
Seametrics • 253.872.0284 Page 4 seametrics.com
GENERAL INFORMATION
Specications*
Flow Range
Nominal Pipe Size 4” 6” 8” 10” 12”
Low Flow Cuto GPM
Low Flow Cuto LPS
19.3
1.22
43.11
2.72
77.1
4.86
120.5
7.6
173.5
10.95
Min GPM
Min LPS
64.3
4.1
144.6
9.1
257
16.2
401.6
25.3
578.3
36.5
Max GPM
Max LPS
578
36.5
1301
82.1
2313
145.9
3614
228
5204
328.3
10x/5x
Pipe Diameter
2x
Pipe Diameter
FLOW
Upstream straight pipe is selected during initial setup. Upstream
options are 5X or 10X the diameter and are based on the
amount of straight pipe available in either new or propeller meter
replacement installation. Downstream straight pipe requirement
is 2X the diameter. See programming setup for details.
Pipe Size 4” to 12”
Materials Sensor Body 316 SS
Electrodes Hastelloy
Housing Powder-coated diecast aluminum
Electrode Cap PVDF (Kynar®)
O-Ring EPDM
Temperature Operating 10˚ to 140˚ F (-12˚ to 60˚ C)
Storage -40˚ to 158˚ F (-40˚ to 70˚ C)
Fluid Temp. 32˚ to 200˚ F (0˚ to 93˚ C)
Pressure 200 psi (14 bar)
Flow Rate 0.5 - 4.5 m/sec (1.64 - 14.8 ft/sec) (Low ow cuto .15 m/sec; .49 ft/sec)
Calibration
Accuracy
0.5 - 4.5 m/s
(1.64-14.76 ft/sec) +/- 2% of reading
0.3 - 0.5 m/sec
(0.98 - 1.64 ft/sec) +/- (2% of reading + 0.25% of full scale)
Display Type 128x64 dot-matrix LCD
Digits 5 Digit Rate 8 Digit Total
Units
Please Note:
All meters are factory
set for gallons per
minute (GPM) rate and
acre foot total. If other
units are required, they
can be set in the eld.
Rate Volume Units Rate Time Units Total Volume Units
Gallons
Liters
Barrels (42 gallons)
Cubic Feet
Cubic Meters
Million Gallons1
Mega Liters1
Imperial Gallons
Million Imperial Gallons1
Second
Minute
Hour
Day
Gallons
Gallons x 10
Gallons x 100
Gallons x 1000
Million Gallons
Liters
Kilo Liters
Mega Liters
Barrels (42 gallons)
Cubic Meters
Cubic Meters x 1000
Cubic Feet
Cubic Feet x 1000
Million Cubic Feet
Imperial Gallons
Imperial Gallons x 1000
Million Imperial Gallons
Acre Inch
Acre Foot
Fluid Ounce
Bidirectional Forward Total, Reverse Total, Net Total, Batch Forward Total, Batch Reverse Total2
Power One lithium 7.2V ‘D’ size battery pack, replaceable.
Scaled Pulse
Output
Signal Current sinking pulse, isolated, 36 Vdc at 10 mA max
Pulse Rates User-scalable from 0.1 to 99,999.9 volume units/pulse. Pulse width varies with output frequency, 150
pulses/sec max
Cable Optional Output
Cable
20ft (6m) standard length polyurethane jacketed cable—for power and outputs.
(Lengths up to 200’ (60 m) available.)
Conductivity >20 microSiemens/cm
Empty Pipe Detection Hardware/software, conductivity-based
Regulatory Certied to NSF/ANSI standard 61 and NSF 372 (Stainless only with EPDM O-ring. Viton pending).
Environmental IP67
* Specications subject to change. Please consult our website for the most current data (seametrics.com).
1Rate Time Unit is available in Day only.
2 Forward and reverse ow totals are non-resettable. Batch forward and batch reverse totals can be reset.
Kynar is a registered trademark of Arkema, Inc.

EX90-SERIES INSTRUCTIONS
Seametrics • 253.872.0284 Page 5 seametrics.com
GENERAL INFORMATION
Dimensions
Top of Saddle
5.48 in (13.92 cm)
5.28 in
(13.41 cm)
4.76 in
(12.09 cm)
EX90-0400 - 10.40 in (26.42 cm)
EX90-0600 - 11.14 in (28.30 cm)
EX90-0800 - 11.86 in (30.12 cm)
EX90-1000 - 12.60 in (33.73 cm)
EX90-1200 - 14.29 in (36.30 cm)
CAUTION: Ensure that the U-clip is installed and never remove the U-clip
retainer when the pipe is under pressure. Always remove pressure from
the pipe before you attempt to remove the meter. Removal under pressure
may result in damage or serious injury.
Consult factory if your OD
does not match.
Saddle Weld
Saddle
Size
Saddle
Range
Carbon or
316 SS Weld
Fitting
4” 4.00”- 4.90” 4”
6” 6.00”- 6.90” 6”
8” 8.00” - 9.05” 8”
10” 10.00” - 11.10” 10”
12” 12.10” - 13.20” 12”
Install security clip and seal during installation
if regulations require. Security seal wire threads
through hole in security clip.
Install display security seal and captive screw
security wire during installation if regulations
require.
Install display security tab during installation if
regulations require.

EX90-SERIES INSTRUCTIONS
Seametrics • 253.872.0284 Page 6 seametrics.com
INSTALLATION
Side (3 o’clock), top (12 o’clock) installations are acceptable.
Orienting the Meter
Fitting Installation
EX90-Series meters require special saddles or weldo-o-lets
that ensure that the ow sensor is installed to the correct
depth. The tting must be installed in the pipeline before
the meter can be installed. For best results, see straight
pipe and full pipe information on pages 8 and 9.
If there is not enough straight run to smooth out the
turbulence caused by valves, ttings, and changes in
direction, some decrease in accuracy may result. This does
not mean that the ow meter’s reading is meaningless
however. In some applications (control systems, valve
operation, chemical addition) a repeatable reading may
be more important than a highly accurate one.
Upstream straight pipe is selected during initial setup. Upstream
options are 5X or 10X the diameter and are based on the amount of
straight pipe available in either new or propeller meter replacement
installation. Downstream straight pipe requirement is 2X the diameter.
See programming setup on page 14 for details.
.
Meter Installation
After the saddle or weld-o-let is installed in the pipeline,
the meter can be installed in the tting. After noting the
direction of the ow arrow, press the meter into the tting
as far as it will go. Retain the meter in place by inserting
the U-clip. The pin can be installed from either side. It may
be necessary to rotate the probe back and forth slightly to
start the pin into the slots on the probe. Slide the pin in
as far as it will go.
2X
10X/5X
Chemical Injection
When any magmeter, by any manufacturer, is used in a
chemical injection application (including fertigation), the
chemical injection point 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
applications, install chemical injection
point downstream of magmeter, or far
enough upstream to allow complete
mixing of uids before the meter.
FLOW

EX90-SERIES INSTRUCTIONS
Seametrics • 253.872.0284 Page 7 seametrics.com
1. Clean the mounting surface, remove
any roughness from the area and cut a
1.75” hole into pipe. Place gasket centered
over pipe opening.
2. Place saddle top over gasket. 3. Make sure saddle top covers entire gasket.
1st
4th
3rd
2nd
New Saddle Installation
Weld-o-let Installation
BEFORE INSTALLING measure & record inside diameter (ID) of pipe.
BEFORE INSTALLING measure & record inside diameter (ID) of pipe.
NOTE: Gasket will extend
outside of a 4” pipe
saddle’s sides.
5. Place saddle plates over saddle
clamp threads. Attach nuts and
tighten as shown below. Torque to 75
ft-lb in cross pattern.
6. Insert the EX90 sensor into the saddle
tting and secure with mounting clip or
attach security clip and seals if required.
4. Place the saddle clamps under the
pipe and align with the clamp guides
on the saddle top.
1. Clean the mounting surface, remove
any roughness from the area and cut a
1.75” hole into pipe. Place gasket centered
over pipe opening.
2. Install weld-o-let 6. Insert the EX90 sensor into the weld-o-let
tting and secure with mounting clip or
attach security clip and seals if required.

EX90-SERIES INSTRUCTIONS
Seametrics • 253.872.0284 Page 8 seametrics.com
INSTALLATION
Straight Pipe Recommendations (X = diameter)
Better Installation
Allows air to bleed o
Pipe conguration selected during program setup.
Two Elbows In Plane
2X
10X/5X
Full Pipe Recommendations
Possible Problem
Can create air pocket at sensor
For All Installations. Although not necessarily required in
every circumstance, to aid with the reduction of electrical
noise, static, and induced or transient voltages, every EX90
installation will benet by connecting the ground lug of the
meter to a 5/8” x 8’ independent ground rod dedicated to the
meter using at least a 10 GA ground wire.
Electronically Noisy Installations. When the EX90 is
installed in an electrically noisy system, such as near a VFD
etc. an independent ground rod is always recommended to
help with the reduction of the electrical noise and to help
protect against any large electrical spikes. In electrical noisy
installations, always conrm the rest of the equipment is also
well grounded. Do not connect VFD ground rods to any other
equipment.
Equalization Lug
Ground Clamp
(Exothermically weld when
corrosion is a concern)
8’ Ground Rod
Earth
#6, #8, or #10 AWG Stranded
Copper Ground Wire
Grounding

EX90-SERIES INSTRUCTIONS
Seametrics • 253.872.0284 Page 9 seametrics.com
INSTALLATION
Full Pipe Recommendations
Better InstallationPossible Problem
Air can be trapped Allows air to bleed o
Better InstallationPossible Problem
Allows air pockets to form at sensor Ensures full pipe
Post-valve cavitation can create air pocket Keeps pipe full at sensor
Better InstallationPossible Problem

EX90-SERIES INSTRUCTIONS
Seametrics • 253.872.0284 Page 10 seametrics.com
CONNECTIONS
EX90 General Cable Information
The EX90 meter has one cable connector. The cable contains the wires for scaled pulse output and external
DC power. See Sample Cable Wiring Diagrams and Wiring Table.
The EX90 is available as a Battery powered meter
Power/Output Cable
Battery Version with no external pulse output
No wiring is needed.