Insertion Electromagnetic Flow Transmitter — Series IEF & IEFB
Series IEF Insertion Electromagnetic Flow Transmitter
Reliable, precise velocity measurement with flexible outputs and simple installation for HVAC and process applications.
What it is: An adjustable insertion electromagnetic flowmeter that delivers reliable, precise fluid velocity measurement — with multiple continuous output options.
Why it matters: Series IEF makes flow measurement simpler, faster, and smarter with field-configurable displays, minimal maintenance, and no moving parts to wear or clog.
Key Features
- Field-configurable display: LCD integral or remote (A-IEF-DSP)
- All-in-one outputs: Analog | Pulse/Frequency | Alarm | BACnet | Modbus®
- No system shutdowns: Optional hot-tap valve for live installs
- Easy setup: Wizard + installation kit (A-IEF-KIT) ensures accurate placement
- Built to last: No moving parts = lower cost and longer life. And the screen never darkens due to sunlight!
- Certified accuracy: NIST-traceable verification for select pipe sizes
- Rugged design: NEMA 6P (IP68) enclosure
Why Choose It
The Series IEF stands out because it saves time, reduces headaches, and delivers results. Installation is quick with user-friendly tools that make setup precise from the start. Once in place, it keeps working—no moving parts mean minimal maintenance and long-term reliability.
It’s flexible, too. One unit offers multiple output formats, including BACnet and Modbus®, so it integrates easily into new or existing systems. Accuracy stays steady even when temperature or fluid properties change, giving you confidence in every reading.
And it’s a solid value. You get advanced performance and rugged construction at a competitive price, lowering total cost of ownership while improving system efficiency.
Who It’s For
- HVAC Systems
- Water & Wastewater
- Data Centers
Where It’s Used
- Boiler feed
- Chilled water
- Cooling loops
- Irrigation
- Chemical processing
- Ground water
- Pump protection
- Wastewater flows
Stromquist & Company Advantage: We stock and support Dwyer’s Series IEF transmitters for quick delivery, expert technical guidance, and end-to-end service—helping you measure with confidence and keep your systems running efficiently.
Series IEFB Thermal Energy Meter (4"–36")
Measure BTUs + flow in large pipes with one pre-programmed, ready-to-install package.
What it is: An insertion thermal energy meter that combines flow + dual temperature sensors + an energy calculator to deliver real-time BTU and system performance data.
Why it matters: Accurate BTU and flow readings help you validate plant performance, spot inefficiencies, and optimize energy use.
What You Can Do With It
- Verify boilers & chillers
- Allocate energy costs
- Optimize hydronic loops
- Support ESG reporting
- Reduce wasted energy
Key Features
- Complete package: Flow + dual temp sensors + BTU calculator (pre-programmed)
- Built for large pipes: One platform covers 4" to 36"
- High accuracy: Designed to meet EN1434 / ASTM E3137 thermal energy requirements
- Flexible display: Integral LCD option or remote display (A-IEF-DSP)
- Outputs + comms: Analog • Pulse/Frequency • Alarms • BACnet MS/TP • Modbus RTU
- Lower maintenance: No moving parts for long service life
- Install/service faster: Hot-tap & isolation valve options reduce downtime
- Quick commissioning: Setup Wizard + accessories for consistent insertion depth
Who It’s For
- Mechanical contractors
- Controls / SIs
- Consulting engineers
- Facility teams
- ESCOs
- District energy
Where It’s Used
- Chilled water loops
- Hot water loops
- Boiler plants
- Chiller plants
- District heating/cooling
- Energy allocation
Why Choose IEFB
One integrated meter reduces labor and piping changes, stays accurate in real-world conditions, and connects to modern BAS via BACnet or Modbus.
Stromquist Advantage: We help you select the right configuration and accessories, support BACnet/Modbus integration, and keep projects moving with responsive technical help and fast fulfillment where available.