Seametrics EX90 Operating Manual

EX90-Series

Electomagnetic Insertion

Flow Sensor

Precision Flow Measurement

An ON

CON Brand

PROUDLY MADE IN THE

USA

ISO

9001

TABLE OF CONTENTS

EX90-SERIES INSTRUCTIONS

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

Seametrics • 253.872.0284 Page 2 seametrics.com

GENERAL INFORMATION

EX90-SERIES INSTRUCTIONS

The EX90-series battery powered, insertion electromagnetic

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.

Features

Hinged Display Cover User access lid

Output cable port access

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 and an output cable is

available for transmitting the pulse signal to remote

devices. The EX90 includes a Seametrics saddle which has

been 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.

Rate and total indicator with

light sensor button controls

Data logger connector (optional)

Equalization lug

O-ring, EPDM

PVDF electrode cap

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.

Powder-coated diecast aluminum

electronics housing

Sensor body (Stainless)

Hastelloy electrodes

Battery Power

Bidirectional Flow Reading

Pulse Scaled Output

Built-in Data Logger (Optional)

Saddle Included

Seametrics • 253.872.0284 Page 3 seametrics.com

GENERAL INFORMATION

EX90-SERIES INSTRUCTIONS

Specications*

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 Ambient

Temperature

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)

0.3 - 0.5 m/sec (0.98 - 1.64 ft/sec)

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.

Bidirectional Forward Total, Reverse Total, Net Total, Batch Forward, Batch Reverse

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

Cable Optional Output

Cable

Conductivity >20 microSiemens/cm

Empty Pipe Detection Hardware/software, conductivity-based

Regulatory

Environmental IP68

* Specications subject to change. Please consult our website for the most current data (seametrics.com).

Rate Time Unit is available in Day only.

Kynar is a registered trademark of Arkema, Inc.

Flow Rate (4” - 12”)

0˚ to 160˚ F (-17˚ to 72˚ C)

+/- 2% of reading

+/- (2% of reading + 0.25% of full scale)

Rate Volume Units Rate Time Units Total Volume Units

Gallons Liters Barrels (42 gallons) Cubic Feet Cubic Meters Million Gallons Mega Liters

Imperial Gallons Million Imperial Gallons

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

pulses/sec max

20ft (6m) standard length polyurethane jacketed cable—for power and outputs.

(Lengths up to 200’ (60 m) available.)

(EN 61326) Pending

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

FLOW

Nominal Pipe Size

Low Flow Cuto GPM

Low Flow Cuto LPS

Min GPM

Min LPS

Max GPM

Max LPS

4” 6” 8” 10” 12”

19.3

1.22

64.3

4.1

578

36.5

43.11

2.72

144.6

9.1

1301

82.1

77.1

4.86

257

16.2

2313

145.9

120.5

7.6

401.6

25.3

3614

228

173.5

10.95

578.3

36.5

5204

328.3

10x/5x

Pipe Diameter

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.

Seametrics • 253.872.0284 Page 4 seametrics.com

GENERAL INFORMATION

Dimensions

5.48 in (13.92 cm)

EX90-SERIES INSTRUCTIONS

4.76 in

(12.09 cm)

5.28 in

(13.41 cm)

Top of Saddle

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)

Attach U-clip retainer during installation

Attach display security seal during installation if regulations require.

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.

Saddle Size Range

4” 4.00”- 4.90”

6” 6.00”- 6.90”

8” 8.00” - 9.05”

10” 10.40” - 11.10”

12” 12.10” - 13.20”

Consult factory if your OD

does not match.

Seametrics • 253.872.0284 Page 5 seametrics.com

INSTALLATION

Fitting Installation

EX90-Series meters require special saddles that ensure that the ow sensor is installed to the correct depth. The

saddle 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.

EX90-SERIES INSTRUCTIONS

Side (3 o’clock), top (12 o’clock) installations are acceptable.

Orienting the Meter

FLOW

10X/5X

See programming setup for details.

Meter Installation

After the saddle 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.

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.

Seametrics • 253.872.0284 Page 6 seametrics.com

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