Wilger
Installation and Operation Manual
Wilger Electronic Flow Monitoring System
Page | 5
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.
