E+E EE741 Specifications
EE741
Modular, compact, inline ow meter
for compressed air and gases
The EE741 inline flow meter is dedicated for accurate metering
and monitoring of compressed air and technical gases in DN15
to DN50 pipes.
The thermal measuring principle and the well-proven E+E hot film
sensor element lead to best long-term stability and fast response
time.
Outstanding measuring accuracy, even in the lower measuring
range is achieved by an application-specific multi-point factory
adjustment performed at 7 bar (102 psi). This allows reliable leak
detection and corresponding energy savings.
The construction of the EE741 is optimized for easy installation
and maintenance.
The EE741 is user configurable and can be easily adapted to any measuring task. The setup can be set using either
display and push buttons or the free product configuration software EE-PCS.
Typical applications
EE741
• Compressed air consumption measurement
• Monitoring of technical gases O
Features
Transmitter
» For each three pipe diameters
» Installation and removal without dis-
assembling the pipework facilitatesregular calibration
» Application-specific adjustment
under pressure for best accuracy
Sensor head and thermal ow sensor
» Robust design in stainless steel
» Very short response time
» Wide measuring range
» Long-term stable and accurate
» Negligible pressure drop
» Highly insensitive to contamination
» No additional pressure and
temperature compensation required
Gauge mounting block
» Precise and reproducible positioning
of the transmitter for best accuracy
» Aluminum or stainless steel
» Can be operated with sealing plug
also without transmitter
, N2, Ar, CO2 and other
2
• Nitrogen generators
• Leak detection
Display
» Shows instantaneous values and
overall consumption
» Intuitive device setup with push-
buttons
» Can be rotated in 90° increments
Output
» User configurable via display or PC
» 0-20 / 4-20 mA output
» Two switch outputs
» Pulse output
» Modbus RTU
» M-Bus
Measurands
» Standard volume flow
» Mass flow
» Standard flow
» Temperature
» Integrated consumption meter
(totalisator) for cost-effective
consumption analysis without
additional datalogger
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v2.3 / Modification rights reserved
EE741
EE741
Modular design
One and the same transmitter can be used for each of three pipe
diameters:
EE741: DN15 (1/2“) / DN20 (3/4“) / DN25 (1“)
EE741-N50: DN32 (1-1/4“) / DN40 (1-1/2“) / DN50 (2“)
The pipe diameter is easily changed via the display menu or the
Configurator software.
Once the gauge mounting block is built into the pipeline, the transmitter
can be installed and removed without disassembling the pipework.
As a result, the EE741 is also ideal for temporary measurement at
serveral mounting blocks. The sealing plug included in the scope of
supply enable the normal operation of the compressed air system
when the transmitter is removed.
Display (optional)
The state-of-the-art LCD shows the current measured values and the
overall consumption. The user specific device setup can be easily
performed with the push buttons and intuitive menu guidance.
The display can be rotated in 90° increments with a push button for
convenient orientation in any mounting position of the flow meter.
The EE741 without display can be configured by the user via USB
interface with the free EE-PCS product configuration software.
Connection diagram
34
1 2
M12 plug on device
Output 1: Analogue [mA] or switch
Output 2: Pulse or switch
The output signal is freely selectable and configurable.
Analogue/switch/
pulse output
1...V+
2...Output 1
3...GND
4...Output 2
Modbus RTU
1...V+
2...RS485 A (=D+)
3...GND
4...RS485 B (=D-)
M-Bus / Meter-bus
1...V+
2...M-Bus
3...GND
4...M-Bus
EE741
v2.3 / Modification rights reserved
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