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User Manual EE741 Inline Flow Sensor for Compressed Air and Gases
3 Product Description
The EE741 flow sensor operates on the thermal mass flow measurement principle and is suitable
for measuring the flow of compressed air and gases in pipelines. It can be used for measuring
the consumption of compressed air, nitrogen, argon, oxygen, CO
2
or other non-corrosive and
non-flammable gases.
The EE741 measures the volume flow under standard conditions. The standard conditions
according to DIN 1343 (1013.25 mbar; 0 °C) are factory-set. Additionally, EE741 measures the
mass flow, the standardized flow and the temperature.
Depending on the ordered version, the EE741 is available either as analogue version with
analogue output (current), switch output and/or pulse output for consumption metering or as
digital version (Modbus RTU, M-Bus or IO-Link).
The analogue version has 2 configurable outputs, output 1 as current or switch output, output 2
as switch or pulse output.
The digital version provides Modbus RTU, M-Bus or IO-Link interface by factory.
The EE741 features an integrated consumption meter. The consumption volume can be shown
on the display and is retained even if the supply voltage is interrupted.
Sensing unit
Display (optional)
Gauge mounting block
Output
• Analogue
• 2 switch outputs
• Pulse output
• Modbus RTU
• M-Bus
• IO-Link
Sensing head
Gauge mounting block
with flanges
