E+E EE741 thermal inline flow meter for compressed air and gases, DN15 to DN50, up to 848 Nm³/h, 16 bar
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Quick overview
- Type: Flow
- Signal / Protocol: 4–20 mA, Modbus, RS-485, Relay / switch, Pulse / frequency
- Hazardous area: General purpose
- Genuine productsSourced from the manufacturer or authorised channels
- Delivery across BangladeshDhaka, Chattogram and all industrial zones
- After-sales supportInstallation guidance and warranty handling
- Reply within 24 hoursCall +880 1713 552466 or email hello@argonmark.com
Specifications
| General | |
|---|---|
| Part no. | BD-1580 |
| Category | Oil & Gas Instruments |
| Group | Instrumentation & Control |
| Brand | E+E Elektronik |
| Model | EE741 / EE741-N50 |
| Technical | |
| Type | Flow |
| Signal / Protocol | 4–20 mA, Modbus, RS-485, Relay / switch, Pulse / frequency |
| Hazardous area | General purpose |
Datasheet
Technical features
| Hot-film thermal sensor | long-term stable, fast response, negligible pressure drop, no pressure/temperature compensation needed |
|---|---|
| Multi-point factory adjustment at 7 bar gives good accuracy at low flows for leak detection | |
| Modular | one sensing unit fits three pipe sizes; remove it from the mounting block without dismantling pipework |
| Rotatable display with push buttons, or set-up with free EE-PCS software | |
| Integrated consumption totaliser; oxygen-cleaned version available | |
Applications
| Compressed air consumption metering and cost allocation | |
| Leak detection in compressed-air networks | |
| Technical gas (N2, O2, Ar, CO2) flow monitoring |
Key specifications
| Measured variables | Standard volume flow, mass flow, standard velocity, temperature, totalised consumption |
|---|---|
| Range (air) | DN15 0.2–76 Nm³/h up to DN50 2.2–848 Nm³/h |
| Accuracy | ±(3% of reading + 0.3% FS) at 7 bar, 23 °C |
| Outputs | 0/4–20 mA, 2 switch outputs, pulse; Modbus RTU, M-Bus or IO-Link |
| Max. pressure | 16 bar (PN16) |
| Media | Compressed air, O2, N2, Ar, CO2 and other non-corrosive gases |
Measurement
| Standard conditions | 1,013.25 mbar, 0 °C (configurable) |
|---|---|
| Ranges in air | DN15 0.2–76.3; DN20 0.4–135.7; DN25 0.6–212; DN32 0.9–347.4; DN40 1.4–542.8; DN50 2.2–848.2 Nm³/h |
| Accuracy | ±(3% of measured value + 0.3% FS) at 7 bar abs and 23 °C (k = 2) |
| Pressure dependency | Compensated by entering system pressure (otherwise ±0.5%/bar from 7 bar) |
| Response time | t90 < 2 s; interval 0.1 s |
| Temperature | −20 to 60 °C, ±0.7 °C |
Outputs and general
| Analog | 0–20 / 4–20 mA, RL < 500 Ω |
|---|---|
| Switch outputs | PNP, 100 mA; N/C or N/O, hysteresis or window |
| Pulse | Consumption, 0.02–2 s |
| Digital | RS485 Modbus RTU, M-Bus or IO-Link v1.1 |
| Supply | 18–30 V DC; ≤ 120 mA with display |
| Max. operating pressure | 16 bar |
| Temperature | Medium −20 to 60 °C; ambient 0–50 °C with display |
| Materials | Sensing head 1.4404 SS / glass; mounting block anodised aluminium or 1.4404 SS; flanged block all-SS |
| Connections | Rp or NPT thread (DN15–DN50) or flanges (DN32–DN50) |
| Protection | IP65 |
| EMC | EN 61326-1, -2-3 industrial; FCC Part 15 Class B |
Notes
| Data from the manufacturer's published datasheet. Confirm model, range, materials and approvals with Argonmark before ordering. |
Photo: courtesy of E+E Elektronik, used with permission (source) — background removed by Argonmark. All photo credits
Description
The E+E EE741 is a thermal inline flow meter for compressed air and technical gases such as O2, N2, Ar and CO2 in DN15 to DN50 pipes, covering up to 848 Nm³/h. Its hot-film sensor measures standard volume flow, mass flow, velocity and temperature with ±(3% of reading + 0.3% FS) accuracy, factory adjusted at 7 bar for good low-flow performance and leak detection, with negligible pressure drop.
One sensing unit serves three pipe sizes and can be removed from its mounting block without opening the pipework. Outputs include 4–20 mA, switch and pulse outputs plus Modbus RTU, M-Bus or IO-Link, and an integrated totaliser records consumption. It is rated to 16 bar.
Argonmark Ltd supplies E+E Elektronik instruments across Bangladesh — Dhaka, Chattogram, Gazipur, Narayanganj and the gas fields, refineries, terminals and power plants beyond. Send us the model, range, process connection, output and any hazardous-area requirement, and we will confirm the right configuration, lead time and price.
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