WILGER EFMS User manual

Electronic Flow Monitoring
System
Installation and Operation Manual
V1.0

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1. Table of Contents
1. Table of Contents...........................................................................................3
2. Important Information...................................................................................4
3. Introduction ..................................................................................................5
EFM System Components ....................................................................................... 5
Tablet and EFM App................................................................................................ 9
Overview of the EFM System................................................................................ 12
4. Installing the EFM System ............................................................................14
Planning Your Installation..................................................................................... 14
Installing the Plumbing ......................................................................................... 15
Installing and Connecting the Electronics............................................................. 16
Installing the Wilger Electronic Flow Monitoring App .......................................... 16
Launching the App ................................................................................................ 17
Connecting the Tablet to the ECU ........................................................................ 18
Configuring the ECU Main Settings....................................................................... 20
Configuring the Flow Measurement Sensors........................................................ 23
5. Operating the EFM System........................................................................... 28
Main Overview Screen .......................................................................................... 28
6. Troubleshooting & Frequently Asked Questions ...........................................29
Frequently Asked Questions ................................................................................. 29
7. Appendix..................................................................................................... 31
Appendix A: Using an ECU to Product Node Y-Adapter Cable.............................. 31
Appendix B: Parts Lists.......................................................................................... 33
8. Warranty..................................................................................................... 34

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2. Important Information
 Be sure to follow all safety instructions in your application equipment operator’s manual.
 Wilger Industries Ltd. (Canadian Head Office & Factory) and Wilger Inc. (US Office & Factory) will furthermore be
referred to as ‘Wilger’.
 Learn how to operate and service the application equipment correctly. Failure to do so could result in personal injury or
equipment damage. Wilger does not accept any liability or responsibility for personal, equipment or other damage or
malfunctions arising from failure to comply with the equipment’s operation manual.
 If you do not understand the information in this manual, or if you have any questions, contact Wilger Customer Service.
(USA: M-F 9-5; 1 877 968-7695 // CANADA: M-F 9-5; 1 833 242-4121)
 This manual should be considered a permanent part of your machine and should remain with the machine when you sell
it.
 Wilger reserves the right to alter illustrations and technical data contained in this manual without notice of changes.
Technical data and illustrations are provided for visual aids, and may differ from your current system. Contact Wilger
Support if any verification is needed.
 The contents of this manual are the intellectual property of Wilger. All use and/or reproduction not specifically authorized
by Wilger is prohibited. Send all requests for reproduction or modification to: [email protected]
 All information, illustrations and specifications in this manual are based on the latest information available at the time of
publication. Wilger reserves the right to make changes at any time without notice.

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3. Introduction
The Wilger Electronic Flow Monitoring System (EFMS) is a compact flowmeter that
can be used row-by-row on liquid fertilizer or chemical application equipment. The
flow meter is paired with a tablet, or manufacturer’s monitor to provide accurate
monitoring for both blockage and flow rate irregularity.
Similar to visual ball flow indicators, the Wilger Electronic Flow Monitoring System
shows variations in flow caused by blocked lines, incorrect orifices, or blown
product hoses. However, the Wilger EFM System provides the added benefit of
indicating the actual flow (not just relative flow) for each row. This information is
conveniently displayed on a screen in your cab.
The EFM system utilizes a paddle-wheel flowmeter, with patented stabilizing flow
jets, that maintains accuracy across the flow range of 0.04 US GPM to 1.5 US GPM
(0.15L/min to 5.6L/min), without significant pressure drops. The EFM system
accurately monitors flow on each outlet or product run, which ensures the operator
has complete and comprehensive flow information. The flowmeter can provide a
40:1 flow range, pairing stabilizing flow jets appropriate for the users’ operational
flow range.
The Electronic Flow Monitoring app (Android OS) receives sensor information from
the flowmeters via an Electronic Control Unit (ECU). The ECU establishes a local WiFi
connection with the tablet, so there are no communication harnesses needed
between the implement and the cab.
EFM System Components
Plumbing
The Electronic Flow Monitoring system uses O-ring Seal (ORS) plumbing, which is
ultimately adaptable to any application equipment. However, the system typically
requires:
Plumbing manifolds, which split the flow to each flow run
EFM flowmeters, each of which is equipped with:
A flow jet, selected for the anticipated flow range
An orifice, which determines the application flow rate
Check valves (recommended) that allow flow to be manually shut off
[OPTIONAL] Ball Flow Indicators, which can be installed to add visual
indication of flow in addition to the digital display.

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Figure 1. Manifolds with Flowmeters and Check Valves
Figure 4. Flow Jets for Various Measurement Ranges
Black: 0.57 to 1.53 US GPM
Blue: 0.18 to 0.98 US GPM
Red: 0.10 to 0.31 US GPM
Green: 0.04 to 0.12 US GPM
Figure 3. Orifices for Various Flowrate Ranges
Figure 5. Orifice in Flowmeter
Figure 2. Ball Indicator Flowmeter
Triple Manifold
EFM Flowmeter
Check Valve

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Electronics and Cabling
The EFM system operates from 12 VDC power. Sensors, nodes and the ECU are
interconnected using multiconductor cables with weather-tight Deutsch connectors.
Figure 6. Electronic Control Unit (ECU)
Electronic control unit (ECU) –Creates a local WiFi network signal that allows the
EFM system to communicate with an app running on an Android tablet in the
tractor cab. The Android app is provided free as a download.
Figure 7. ECU to Product Node Extension Cable
ECU to Node Extension cable –Connects the ECU to the first product node in a
chain of multiple product nodes
Figure 8. 4CH Node, 4CH Node Harness and Single-Sensor Cable
4-channel (4CH) node, 4CH node harness and single sensor cable –The 4CH node
brings together signals from up to four flow sensors and sends the signal to the ECU.
A 4CH harness connects the node to four single-sensor cables. Each 4CH node has
six connectors: four 3-pin female Deutsch connectors (for sensor cables), one 8-pin
female Deutsch connector (for connecting to the next node in the chain, or to a
terminator), and one 8-pin male Deutsch connector (for connecting to the previous
node in the chain, or the ECU)

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Figure 9. 16CH Node, 16CH Node Harness and Quad Sensor Cable
16-channel (16CH) node, 16CH node harness and quad-sensor cable –Enables the
16CH node harness to connect to four quad-sensor cables (allowing up to 16
sensors per 16CH product node) to be connected and communicate with the
system. Each 16CH node has six connectors: four 6-pin female Deutsch connectors
(for quad-sensor cables), one 8-pin female Deutsch connector (for connecting to the
next node in the chain, or to a terminator), and one 8-pin male Deutsch connector
(for connecting to the previous node in the chain, or the ECU).
Figure 10.Hall Effect Sensor and Encoder Wheel
Sensor and Encoder –Hall effect sensor detects rotation of the encoder magnet on
the wheel, producing pulses at a rate representative of flow.
Figure 11. ECU Harness Terminator
8-pin node harness terminator –Terminates the series (chain) of product node
harnesses that originate at the ECU. The terminator will always be plugged into the
last product node(s) of the chain. (Advanced: If an ECU to Node Y-adapter is used at
the ECU, two terminators are required –one on each end of the chain.)
Figure 12. 4CH Node Sensor Connector Cap and 16CH Node Sensor Connector Cap
4CH and 16CH node sensor connector caps –Protect unused sensor connectors
from corrosion
Encoder
Magnet
Hall
Effect
Sensor
Flowmeter
Cap

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Figure 13. ECU to Product Node Y-Adapter Cable
The ECU to Node Y-adapter cable is used only when plumbing manifolds and EFM
components cannot be centrally located on the application equipment.
In situations that dictate the EFM components and plumbing manifolds must be
located alongside the application equipment’s length, the Y-adapter can be used to
minimize the amount of extra wiring and/or extension harnessing required.
For proper use and labeling of a Y-adapter, reference Appendix 1.
Tablet and EFM App
The Electronic Flow Monitoring (EFM) System includes an Android app that runs on
an Android tablet computer located in the the tractor cab.
Figure 14. EFM on an Android Tablet Computer
The EFM app (downloadable from www.wilger.net, GooglePlay and Amazon
Appstores) is simple to operate and interpret. It provides a highly customizable
visual indication of flow rates for each sensor. Up to three different products can be
shown at a time. Up to 196 sensors (shared across the three products) can be
monitored.
Flow alarm thresholds are easily changed for any of the three products. Green balls
indicate a sensor is within the threshold; yellow indicates the flow is approaching, or
past the threshold; red indicates a serious flow alarm condition.
NOTE:
The EFM apps available from
www.wilger.net/efm.apk,
and from most Android app
stores.

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Setup and Operating Screens and Pages
The app provides three main screens for setting up and operating the system:
Main Overview - up to four pages of information for operating the system
ECU Main Settings –for configuring units, values and system options
EFM Sensor Setup - up to four pages for configuring individual sensors
The Main Overview screen includes icons at the top, right that provide access to the
other screens and additional menu items.
Figure 15. EFM App Main Overview Screen
Figure 16. The ECU Main Settings and Sensor Setup Screens
ECU
Main
Settings
Sensor
Setup
Help
More
Options
SYSTEM SETUP SCREEN
ACCESS CODE
To access the Sensor
Settings screen, the operator
must enter a four-digit
System Setup Access Code.
The factory default code
is 1111.
The System Setup Access
Code can be changed from
within the Setup menu.

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Help and Options Screens
The following screens provide additional information and options:
Help - provides access to this manual in electronic format
Figure 17. This Manual Accessible from the Help Icon
More Options
Status and history messages about wireless status
Status and history message about loop communications errors
A log file (.csv) with flow information
Figure 18.The More Options Menu
NOTE:
For more information on the
Help and More Options
screens, see the Appendix

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Overview of the EFM System
Basic Structure
The Electronic Flow Monitoring System can be retro-fitted on an existing liquid
fertilizer or chemical application kit using O-ring seal (ORS) fittings, or added as a
new kit to an existing machine.
One ECU is required per EFM system (and can accommodate up to 196
product outlets/sensors).
The 8-pin female Deutsch connector from the ECU plugs into the 8-pin male
connector on the harness connected to the first product node (Node 1)
Additional Product Nodes are daisy-chained (using node-to-node extension
cables –if extra harness length is required)
There are two types of product nodes: 4-channel (4CH) and 16-channel
(16CH)
NOTE: Wherever possible, use 16CH nodes. Use 4CH nodes only where four sensors
or less are required
4CH nodes connect to a harness that allows connection to four single-
sensor cables
16CH nodes connect to a product node harness that allows connection
to four quad-sensor cables, which facilitates the use of up to 16 sensors
in total
Each unused product node connection should be capped to protect
connections from possible corrosion.
Sensors are designated by node, cable, and sensor.
Example: Sensor 2B3 is Node 2, Cable B, Sensor 3 (See Figure 21)
The last product harness in the chain requires a node harness terminator.
Figure 19. 8-Pin
Female Connector
Figure 20. 8-Pin Male
Connector

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Figure 21. System Structure
ECU to Product
Node Extension
Cable (if req’d)
(For informaton on
Y-adapter cables
see Appendix)
Quad Sensor
Cables
16-Channel
Harness
Node-to-node
Extension Cable
(if req’d)
Node Harness
Terminator
4-Channel
Harness
Node 1
Node 2
Node 3
16-Channel
Harness
Node-to-node
Extension Cable
(if req’d)
A
B
C
D
1A1
1A2
1A3
1A4
1B1
1B2
1B3
1B4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
Single Sensor
Cables
ADVANCED:
Using an ECU to Node Y-adapter
If more convenient, an ECU to Product Node Y-adapter cable can be used to split the system into two sections allowing the ECU
to be located in the middle of the implement with a series of Product Nodes on each side.
For more information on the use of the ECU to Product Node Y-adapter cable, see Appendix 1.
D
C
B
A
*2B3

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4. Installing the EFM System
Planning Your Installation
Using a whole host of available Wilger O-ring sealed (ORS) fittings, manifolds, or
flow indicator columns, a flow monitoring system can be built to fit a vast majority
of application equipment.
Based on the application equipment, and your preferences:
1. Determine the number products/rates that will be monitored simultaneously.
Each sensor must be correctly grouped with like sensors, monitoring the same
product, to ensure all flows will display correctly.
2. Determine the flow rate units that will be used (US GPM, L/min or Oz/min)
3. Determine the application rate units that will be used (US GAL/AC, IMP GAL/AC,
L/HA, or US GAL/1000sq ft)
4. Ensure 12 VDC power is available on the application equipment.
5. Determine the size of the feed lines feeding each manifold/section.
6. Determine the hose size required for lines feeding each liquid maifold.
Hose barb options include: 1”, ¾”, 5/8”, ½”, 3/8”, ¼”
7. Determine how the application equipment’s sections are split up (how many
outlets per section, and the spacing between each outlet).
8. Estimate the approximate distance between each section feed line.
This is important for optimizing EFM manifold locations and minizing excess
harmess extension cables.
9. Determine the number of outlets/runs to be monitored.
E.g. A 48 row air seeder applying liquid fertilizer requires 48 sensors. If the same
air seeder applied liquid fertilizer and starter, it would require 96 sensors.
10. Determine how many sections the EFM must be split into.
E.g. 6 sections x 8-rows/section
11. Optimally, feed each EFM pumbling manifold centrally, splitting the manifold
with an ORS Tee. (This provides more consistent flow.) In the event of smaller
manifolds, a single side-fed manifold is sufficient.
12. IMPORTANT! Locate and name each EFM sensor based on its product node
number, divider letter (A-D), and sensor cable number (for 16CH nodes: 1-4; for
4CH nodes, sensor cables are numbered with the product node number plus A1,
A2, A3, A4 ).
e.g. For a 16CH Node: Product Node 1 + Divider A + Sensor 1 = Sensor 1A1
For a 4CH Node: Product Node 1 + A + Sensor 1 = 1A1
Note: Divider letter is always A for 4CH nodes
NOTE: For more
assistance in planning your
installation, download the
EFM System Pricing Quote
and Information Request
from www.wilger.net, OR
contact your Wilger dealer,
OR contact Wilger directly.
WILGER CANADA
(1 [phone] or
[email protected])
WILGER USA
1 [phone] or
[email protected]

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Figure 22. Example Plumbing
Installing the Plumbing
Plumbing Manifolds
1. Use an ORS Tee (#20526-00) to connect the manifolds together and an end cap
(#20521-00) at each end.
2. Install the preferred inlet size into the ORS Tee.
3. Determine the EFM jet required for the flow range required by your application.
4. Add the jets into each EFM body. (They only fit into the in-flow side of the EFM
body.)
5. Connect an electronic flow meter (EFM) sensor to each check valve outlet.
6. Connect a manual ON/OFF check valve to the top of each EFM sensor. (This
allows the run to be shut off for maintenance.)
7. Add the ORS metering orifices to the outlet fittings, sized as required by your
application equipment outlets.
Example:
Six sections of eight runs each, for a total of 48 runs.
Center-feed each section using two 4-outlet manifolds (#20574-00), with a
manual ON/OFF check valve (#20551-00) mounted on top, an EFM body
(#20580-00) mounted to the check valve, and an outlet (with an option for a
metering orifice) attached to the EFM body.
Jet Ranges:
Green jet: 0.04 to 0.12 US GPM
Red jet: 0.10 to 0.31 US GPM
Blue jet: 0.18 to 0.98 US GPM
Black jet: 0.57 to 1.53 US GPM

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Installing and Connecting the Electronics
Installation of the electronics is primarily a matter of plugging connectors together
as per the arrangement determined in Planning Your Installation:
NOTE: While connecting ECU, nodes, harnesses and sensors, mark each item to make it easy
to identify and configure in the app at a later step.
1. Connect each product node to a product node harness. (Select 16CH or 4CH
harnesses based on your original installation plan.)
2. Link the nodes together in a daisy-chain by plugging the female 8-pin Deutsch
connector of the first node into the male 8-pin Deutsch connector of the
second, etc.
SUGGESTED BEST-PRACTICE: Label each product node with the number of its
sequence in the chain (Suggestion: use a mark-all marker).
NOTE: 4CH node harnesses are compatible with 16CH node harnesses (and vice
versa).
3. Connect the ECU’s 8-pin female Deutsch connector to the 8-pin male Deutsch
connector on the harness plugged into the first product node. If necessary, use
an ECU to node extension cable. (If using a ECU Y-splitter cable, reference
Appendix 1).
4. Connect an 8-pin ECU terminator to the harness on the last node of the chain.1
5. Connect sensor cables to node harnesses. (Single sensor cables to 4CH node
harnesses; quad sensor cables to 16CH node harnesses.)
6. Cap off any unused node connections to avoid possible corrosion of terminals.
Installing the Wilger Electronic Flow Monitoring App
Using the Android tablet:
1. Establish a WiFi connection to the Android tablet.
2. Open a browser and download the EFM app from:
Wilger’s website (http://www.wilger.net/efm.apk)
Google Play (https://play.google.com/store?hl=en)
Amazon Apps (https://www.amazon.ca/androidapp)
NOTE: The tablet may require permissions to install apps from “outside” sources, for
downloading the app from the wilger.net website.
3. Install the Wilger Electronic Flow Monitroing System app on the tablet.
4. Launch the app.
TIP: See the tablet manual for more detailed information on
downloading and installing software.
NOTE:
The EFM apps available from
www.wilger.net/efm.apk,
and from most Android app
stores.
Figure 23. A 16CH Node with
Harnesses and Numbering
1Correct installation of the terminator is
critically required for proper flow
readings in the app.

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Launching the App
1. On the tablet home screen, tap the EFM app icon (named Wilger Flow
Monitoring System).
Figure 24. An Android Tablet
The following screen appears, indicating that the ECU is not communicating
with the ECU.
Figure 25. No ECU Connectivity
ECU Settings
button
DEFAULT SYSTEM SETUP
ACCESS CODE:
1111
This code can be changed,
and will be needed to
enter/change system
configuration.

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Connecting the Tablet to the ECU
IMPORTANT: The app communicates with the ECU using the tablet’s WiFi, but you do not
connect the tablet to the ECU using the same WiFi menu on the tablet that you would use to
connect the tablet to your home WiFi. If you do, you will have to re-configure the tablet to
“forget” the ECU before performing the following (correct) connection procedure.
To connect the app to the ECU:
1. Make sure the ECU has power. The red light beside the power icon on ECU
will light up.
2. Locate and record (for later use) the ECU serial number on the back of the ECU
3. On the Main Overview screen, tap the ECU Main Settings icon. (See Figure
25).
4. Type in the default system access code (1111) and press Accept.
Figure 26. Pin Required to Continue Popup
The ECU Main Settings page appears.
NOTE: You can also change the access code by pressing Change.
1
2
3
MY ECU SERIAL NUMBER:
_ _ _ _ _ _ _
(7 digits)
Retain the serial number in
case the sticker on the ECU
is worn off.
1
3

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Figure 27. Setting the ECU Serial Number
5. Tap the ECU Serial Number field.
The on-screen keyboard appears
6. Type in the ECU serial number you previously recorded from the ECU.
7. Tap Next.
The tablet will automatically connect to the ECU. This process may take a few
minutes for an initial connection.
8. Verify that the light beside the WiFi icon on the ECU lights up. This indicates
you have successfully connected.
NOTE:
The tablet does not connect to
the ECU using the same WiFi
connectivity menu you would
use to connect the tablet to a
home WiFi network.
Tip:
If the tablet is attempting to connect to the ECU WiFi directly through the tablet’s setting, the EFM app will
not work. It must connect using the “Connecting the Tablet to the ECU” procedure shown above. Before
this procedure will work, you must reconfigure the tablet to “forget” the incorrect WiFi connection. To do
so:
1. Navigate to the tablet’s Connections Settings, WiFi, Manage Networks page
2. Select the Wilger connection listed there
3. Select Forget.
2

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Configuring the ECU Main Settings
In addition to connecting the ECU to the tablet, (as described in the previous
section), the ECU Main Settings Page allows you to configure many other settings
used for accurate flow monitoring and operation of the system.
Figure 28. The ECU Main Settings Page
Installed Nodes: This field auto-populates if the ECU has power and is properly
attached to all product nodes in series, with the terminator attached to the last
product node harness. Verify that the number of nodes indicated matches the
actual number of nodes in your system. If it does not auto-populate, simply input
the correct number of nodes.
ECU Serial Number
# of Installed
Nodes
Diagnostic History (secs)
Page Scroll Cycle (secs)
Flow Rate Units
Application Rate Units
Application Speed
Outlet Spacing
Alarm Threshold % +/-
Jet Calibration
Number
Jet Color
Selection
NOTE:
The tablet does not connect to
the ECU using the same WiFi
connectivity menu you would
use to connect the tablet to a
home WiFi network.