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IEF Transmitters— endless flexibility

dwyeromega ief transmitters remote display

 This article breaks down the key points of the Series IEF Flow Transmitter . An insertion-style meter, IEF
installs faster and with far less disruption than traditional inline meters—and it delivers the flow data modern BAS platforms actually need.

Two main versions — endless flexibility

IEF transmitter

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Series IEF

What it is: The Series IEF Electromagnetic Flow Transmitter provides an efficient way to measure conductive liquid flow in pipes ranging from 4” to 36”.
Top Features:
  • Field-configurable LCD or remote display
  • All-in-one outputs: Analog | Pulse/Frequency | Alarm | BACnet | Modbus®
  • Optional hot-tap valve for live installs — no shutdowns
  • NIST-traceable accuracy + rugged NEMA 6P design
  • Wizard-guided setup and install kit for precise placement
  • Industry leading color screen that never fades or darkens.

What Makes the IEF Series Different: Most flow meters require dozens of configurations, multiple models, and complex ordering. Dwyer Omega flipped that model on its head.

Two main versions

IEF

For flow measurement

IEF-B

For full BTU/energy metering



Field-Configurable

Installer-Friendly: Dwyer Omega thought through everything a tech might need on-site
installation kit includes:
  • Ultrasonic pipe thickness gauge
  • Alignment rods & calibration sticks
  • Weld-delete fittings
  • Hot-tap kits (stainless or brass)
  • Setup tools

What Makes the IEF Series Different : This is a system designed to work in the real world — not just in the lab.

Outputs & Features Built for BAS Integration

something to note: No matter what your system requires, the IEF can speak its language.
Supported outputs include:
  • Analog
  • Current
  • Pulse (user-defined pulse rates)
  • Alarms: reverse flow, empty pipe
And for customers who need accuracy documentation, the IEF offers:
  • Standard accuracy
  • High-accuracy 
  • Optional NIST-traceable certificates

What Makes the IEF Series Different: All of it is configurable through the on-board menu or pre-configured at the factory

Introducing the IEF-B: Full BTU/Energy Metering

What it is: This upgrade of the basic IEF
Purpose:
  • Two temperature sensors (hot & cold)
  • Multiple thermal well options
  • Configurability for glycol concentration in the field
  • No need to send meters back for recalibration

What Makes the IEF Series Different: The IEF-B provides a complete BTU monitoring solution that adapts to whatever the system throws at it.

The Big Takeaway

    Big Picture:

    This is hardware that’s built to last — even in aggressive or high-pressure hydronic systems.

    IEF units ship with a 10-day lead time

    Many configurations are already in stock


Fast, flexible, and field-ready.
Series IEF & IEFB

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